From 369a9e01dc17092505eb8126be4f7219e9def1b8 Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Mon, 26 Oct 2020 18:41:05 -0400
Subject: [PATCH] Externals: Update fmt to 7.1.0
Updates fmt to the latest release from 6.1.2
---
CMakeLists.txt | 2 +-
Externals/fmt/.gitignore | 34 -
Externals/fmt/CMakeLists.txt | 146 +-
Externals/fmt/CONTRIBUTING.md | 3 +
Externals/fmt/ChangeLog.rst | 960 ++++-
Externals/fmt/README.rst | 441 +--
Externals/fmt/include/fmt/chrono.h | 250 +-
Externals/fmt/include/fmt/color.h | 130 +-
Externals/fmt/include/fmt/compile.h | 339 +-
Externals/fmt/include/fmt/core.h | 1647 +++++---
Externals/fmt/include/fmt/format-inl.h | 2255 ++++++++---
Externals/fmt/include/fmt/format.h | 3371 ++++++++++-------
Externals/fmt/include/fmt/locale.h | 59 +-
Externals/fmt/include/fmt/os.h | 480 +++
Externals/fmt/include/fmt/ostream.h | 76 +-
Externals/fmt/include/fmt/posix.h | 323 +-
Externals/fmt/include/fmt/printf.h | 200 +-
Externals/fmt/include/fmt/ranges.h | 112 +-
Externals/fmt/src/format.cc | 167 +-
Externals/fmt/src/{posix.cc => os.cc} | 173 +-
Externals/fmt/support/README | 2 -
Externals/fmt/support/Vagrantfile | 1 +
Externals/fmt/support/cmake/JoinPaths.cmake | 26 +
Externals/fmt/support/cmake/cxx14.cmake | 11 -
Externals/fmt/support/cmake/fmt.pc.in | 6 +-
Externals/fmt/support/fmt.pro | 27 -
Externals/fmt/support/manage.py | 31 +-
.../fmt/support/update-coverity-branch.py | 30 -
28 files changed, 7531 insertions(+), 3771 deletions(-)
delete mode 100755 Externals/fmt/.gitignore
create mode 100644 Externals/fmt/include/fmt/os.h
rename Externals/fmt/src/{posix.cc => os.cc} (63%)
mode change 100755 => 100644
create mode 100644 Externals/fmt/support/cmake/JoinPaths.cmake
delete mode 100755 Externals/fmt/support/fmt.pro
delete mode 100755 Externals/fmt/support/update-coverity-branch.py
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5df6d03e47..033ca2b05d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -545,7 +545,7 @@ if (_M_X86)
endif()
add_subdirectory(Externals/cpp-optparse)
-find_package(fmt 6.0)
+find_package(fmt 7.0)
if(fmt_FOUND)
message(STATUS "Using shared fmt ${fmt_VERSION}")
else()
diff --git a/Externals/fmt/.gitignore b/Externals/fmt/.gitignore
deleted file mode 100755
index 694f8f8f2b..0000000000
--- a/Externals/fmt/.gitignore
+++ /dev/null
@@ -1,34 +0,0 @@
-.vscode/
-
-*.iml
-.idea/
-.externalNativeBuild/
-.gradle/
-gradle/
-gradlew*
-local.properties
-build/
-
-bin/
-/_CPack_Packages
-/CMakeScripts
-/doc/doxyxml
-/doc/html
-virtualenv
-/Testing
-/install_manifest.txt
-*~
-*.a
-*.so*
-*.xcodeproj
-*.zip
-cmake_install.cmake
-CPack*.cmake
-fmt-*.cmake
-CTestTestfile.cmake
-CMakeCache.txt
-CMakeFiles
-FMT.build
-Makefile
-run-msbuild.bat
-fmt.pc
diff --git a/Externals/fmt/CMakeLists.txt b/Externals/fmt/CMakeLists.txt
index 3b6b79ef9b..f21cf4561e 100755
--- a/Externals/fmt/CMakeLists.txt
+++ b/Externals/fmt/CMakeLists.txt
@@ -1,10 +1,8 @@
-cmake_minimum_required(VERSION 3.1.0)
+cmake_minimum_required(VERSION 3.1...3.18)
-# Use newer policies if available, up to most recent tested version of CMake.
-if(${CMAKE_VERSION} VERSION_LESS 3.11)
+# Fallback for using newer policies on CMake <3.12.
+if(${CMAKE_VERSION} VERSION_LESS 3.12)
cmake_policy(VERSION ${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION})
-else()
- cmake_policy(VERSION 3.11)
endif()
# Determine if fmt is built as a subproject (using add_subdirectory)
@@ -24,15 +22,40 @@ function(join result_var)
set(${result_var} "${result}" PARENT_SCOPE)
endfunction()
+include(CMakeParseArguments)
+
+# Sets a cache variable with a docstring joined from multiple arguments:
+# set(<variable> <value>... CACHE <type> <docstring>...)
+# This allows splitting a long docstring for readability.
+function(set_verbose)
+ # cmake_parse_arguments is broken in CMake 3.4 (cannot parse CACHE) so use
+ # list instead.
+ list(GET ARGN 0 var)
+ list(REMOVE_AT ARGN 0)
+ list(GET ARGN 0 val)
+ list(REMOVE_AT ARGN 0)
+ list(REMOVE_AT ARGN 0)
+ list(GET ARGN 0 type)
+ list(REMOVE_AT ARGN 0)
+ join(doc ${ARGN})
+ set(${var} ${val} CACHE ${type} ${doc})
+endfunction()
+
# Set the default CMAKE_BUILD_TYPE to Release.
# This should be done before the project command since the latter can set
# CMAKE_BUILD_TYPE itself (it does so for nmake).
if (MASTER_PROJECT AND NOT CMAKE_BUILD_TYPE)
- join(doc "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
- "CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
- set(CMAKE_BUILD_TYPE Release CACHE STRING ${doc})
+ set_verbose(CMAKE_BUILD_TYPE Release CACHE STRING
+ "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or "
+ "CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel.")
endif ()
+project(FMT CXX)
+include(GNUInstallDirs)
+set_verbose(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR} CACHE STRING
+ "Installation directory for include files, a relative path that "
+ "will be joined with ${CMAKE_INSTALL_PREFIX} or an absolute path.")
+
option(FMT_PEDANTIC "Enable extra warnings and expensive tests." OFF)
option(FMT_WERROR "Halt the compilation with an error on compiler warnings."
OFF)
@@ -43,8 +66,7 @@ option(FMT_INSTALL "Generate the install target." ${MASTER_PROJECT})
option(FMT_TEST "Generate the test target." ${MASTER_PROJECT})
option(FMT_FUZZ "Generate the fuzz target." OFF)
option(FMT_CUDA_TEST "Generate the cuda-test target." OFF)
-
-project(FMT CXX)
+option(FMT_OS "Include core requiring OS (Windows/Posix) " ON)
# Get version from core.h
file(READ include/fmt/core.h core_h)
@@ -61,26 +83,35 @@ message(STATUS "Version: ${FMT_VERSION}")
message(STATUS "Build type: ${CMAKE_BUILD_TYPE}")
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+if (NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
+ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+endif ()
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH}
"${CMAKE_CURRENT_SOURCE_DIR}/support/cmake")
include(cxx14)
include(CheckCXXCompilerFlag)
+include(JoinPaths)
-set(FMT_REQUIRED_FEATURES cxx_auto_type cxx_variadic_templates)
+list(FIND CMAKE_CXX_COMPILE_FEATURES "cxx_variadic_templates" index)
+if (${index} GREATER -1)
+ # Use cxx_variadic_templates instead of more appropriate cxx_std_11 for
+ # compatibility with older CMake versions.
+ set(FMT_REQUIRED_FEATURES cxx_variadic_templates)
+endif ()
+message(STATUS "Required features: ${FMT_REQUIRED_FEATURES}")
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
set(PEDANTIC_COMPILE_FLAGS -pedantic-errors -Wall -Wextra -pedantic
-Wold-style-cast -Wundef
-Wredundant-decls -Wwrite-strings -Wpointer-arith
-Wcast-qual -Wformat=2 -Wmissing-include-dirs
- -Wcast-align -Wnon-virtual-dtor
+ -Wcast-align
-Wctor-dtor-privacy -Wdisabled-optimization
-Winvalid-pch -Woverloaded-virtual
- -Wconversion -Wswitch-enum
- -Wno-ctor-dtor-privacy -Wno-format-nonliteral -Wno-shadow)
+ -Wconversion -Wswitch-enum -Wundef
+ -Wno-ctor-dtor-privacy -Wno-format-nonliteral)
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS} -Wnoexcept
-Wno-dangling-else -Wno-unused-local-typedefs)
@@ -98,8 +129,8 @@ if (CMAKE_CXX_COMPILER_ID MATCHES "GNU")
endif ()
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
- set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -pedantic -Wconversion
- -Wno-sign-conversion -Wdeprecated -Wweak-vtables)
+ set(PEDANTIC_COMPILE_FLAGS -Wall -Wextra -pedantic -Wconversion -Wundef
+ -Wdeprecated -Wweak-vtables)
check_cxx_compiler_flag(-Wzero-as-null-pointer-constant HAS_NULLPTR_WARNING)
if (HAS_NULLPTR_WARNING)
set(PEDANTIC_COMPILE_FLAGS ${PEDANTIC_COMPILE_FLAGS}
@@ -123,7 +154,9 @@ if (MASTER_PROJECT AND CMAKE_GENERATOR MATCHES "Visual Studio")
set(MSBUILD_SETUP "call \"${WINSDK_SETENV}\"")
endif ()
# Set FrameworkPathOverride to get rid of MSB3644 warnings.
- set(netfxpath "C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\.NETFramework\\v4.0")
+ join(netfxpath
+ "C:\\Program Files\\Reference Assemblies\\Microsoft\\Framework\\"
+ ".NETFramework\\v4.0")
file(WRITE run-msbuild.bat "
${MSBUILD_SETUP}
${CMAKE_MAKE_PROGRAM} -p:FrameworkPathOverride=\"${netfxpath}\" %*")
@@ -151,8 +184,12 @@ endfunction()
# Define the fmt library, its includes and the needed defines.
add_headers(FMT_HEADERS chrono.h color.h compile.h core.h format.h format-inl.h
- locale.h ostream.h posix.h printf.h ranges.h)
-set(FMT_SOURCES src/format.cc src/posix.cc)
+ locale.h os.h ostream.h posix.h printf.h ranges.h)
+if (FMT_OS)
+ set(FMT_SOURCES src/format.cc src/os.cc)
+else()
+ set(FMT_SOURCES src/format.cc)
+endif ()
add_library(fmt ${FMT_SOURCES} ${FMT_HEADERS} README.rst ChangeLog.rst)
add_library(fmt::fmt ALIAS fmt)
@@ -161,6 +198,13 @@ if (HAVE_STRTOD_L)
target_compile_definitions(fmt PUBLIC FMT_LOCALE)
endif ()
+if (MINGW)
+ check_cxx_compiler_flag("Wa,-mbig-obj" FMT_HAS_MBIG_OBJ)
+ if (${FMT_HAS_MBIG_OBJ})
+ target_compile_options(fmt PUBLIC "-Wa,-mbig-obj")
+ endif()
+endif ()
+
if (FMT_WERROR)
target_compile_options(fmt PRIVATE ${WERROR_FLAG})
endif ()
@@ -172,14 +216,24 @@ target_compile_features(fmt INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt PUBLIC
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
- $<INSTALL_INTERFACE:include>)
+ $<INSTALL_INTERFACE:${FMT_INC_DIR}>)
+
+set(FMT_DEBUG_POSTFIX d CACHE STRING "Debug library postfix.")
set_target_properties(fmt PROPERTIES
VERSION ${FMT_VERSION} SOVERSION ${CPACK_PACKAGE_VERSION_MAJOR}
- DEBUG_POSTFIX d)
+ DEBUG_POSTFIX "${FMT_DEBUG_POSTFIX}")
+
+# Set FMT_LIB_NAME for pkg-config fmt.pc. We cannot use the OUTPUT_NAME target
+# property because it's not set by default.
+set(FMT_LIB_NAME fmt)
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+ set(FMT_LIB_NAME ${FMT_LIB_NAME}${FMT_DEBUG_POSTFIX})
+endif ()
if (BUILD_SHARED_LIBS)
- if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
+ if (UNIX AND NOT APPLE AND NOT ${CMAKE_SYSTEM_NAME} MATCHES "SunOS" AND
+ NOT EMSCRIPTEN)
# Fix rpmlint warning:
# unused-direct-shlib-dependency /usr/lib/libformat.so.1.1.0 /lib/libm.so.6.
target_link_libraries(fmt -Wl,--as-needed)
@@ -194,43 +248,42 @@ add_library(fmt-header-only INTERFACE)
add_library(fmt::fmt-header-only ALIAS fmt-header-only)
target_compile_definitions(fmt-header-only INTERFACE FMT_HEADER_ONLY=1)
-
target_compile_features(fmt-header-only INTERFACE ${FMT_REQUIRED_FEATURES})
target_include_directories(fmt-header-only INTERFACE
$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>
- $<INSTALL_INTERFACE:include>)
+ $<INSTALL_INTERFACE:${FMT_INC_DIR}>)
# Install targets.
if (FMT_INSTALL)
- include(GNUInstallDirs)
include(CMakePackageConfigHelpers)
- set(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
- "Installation directory for cmake files, relative to ${CMAKE_INSTALL_PREFIX}.")
+ set_verbose(FMT_CMAKE_DIR ${CMAKE_INSTALL_LIBDIR}/cmake/fmt CACHE STRING
+ "Installation directory for cmake files, a relative path that "
+ "will be joined with ${CMAKE_INSTALL_PREFIX} or an absolute "
+ "path.")
set(version_config ${PROJECT_BINARY_DIR}/fmt-config-version.cmake)
set(project_config ${PROJECT_BINARY_DIR}/fmt-config.cmake)
set(pkgconfig ${PROJECT_BINARY_DIR}/fmt.pc)
set(targets_export_name fmt-targets)
- set (INSTALL_TARGETS fmt)
- if (TARGET fmt-header-only)
- set(INSTALL_TARGETS ${INSTALL_TARGETS} fmt-header-only)
- endif ()
+ set_verbose(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
+ "Installation directory for libraries, a relative path that "
+ "will be joined to ${CMAKE_INSTALL_PREFIX} or an absolute path.")
- set(FMT_LIB_DIR ${CMAKE_INSTALL_LIBDIR} CACHE STRING
- "Installation directory for libraries, relative to ${CMAKE_INSTALL_PREFIX}.")
-
- set(FMT_INC_DIR ${CMAKE_INSTALL_INCLUDEDIR}/fmt CACHE STRING
- "Installation directory for include files, relative to ${CMAKE_INSTALL_PREFIX}.")
-
- set(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
- "Installation directory for pkgconfig (.pc) files, relative to ${CMAKE_INSTALL_PREFIX}.")
+ set_verbose(FMT_PKGCONFIG_DIR ${CMAKE_INSTALL_LIBDIR}/pkgconfig CACHE PATH
+ "Installation directory for pkgconfig (.pc) files, a relative "
+ "path that will be joined with ${CMAKE_INSTALL_PREFIX} or an "
+ "absolute path.")
# Generate the version, config and target files into the build directory.
write_basic_package_version_file(
${version_config}
VERSION ${FMT_VERSION}
COMPATIBILITY AnyNewerVersion)
+
+ join_paths(libdir_for_pc_file "\${exec_prefix}" "${FMT_LIB_DIR}")
+ join_paths(includedir_for_pc_file "\${prefix}" "${FMT_INC_DIR}")
+
configure_file(
"${PROJECT_SOURCE_DIR}/support/cmake/fmt.pc.in"
"${pkgconfig}"
@@ -239,6 +292,8 @@ if (FMT_INSTALL)
${PROJECT_SOURCE_DIR}/support/cmake/fmt-config.cmake.in
${project_config}
INSTALL_DESTINATION ${FMT_CMAKE_DIR})
+
+ set(INSTALL_TARGETS fmt fmt-header-only)
# Use a namespace because CMake provides better diagnostics for namespaced
# imported targets.
export(TARGETS ${INSTALL_TARGETS} NAMESPACE fmt::
@@ -259,7 +314,7 @@ if (FMT_INSTALL)
install(FILES $<TARGET_PDB_FILE:${INSTALL_TARGETS}>
DESTINATION ${FMT_LIB_DIR} OPTIONAL)
- install(FILES ${FMT_HEADERS} DESTINATION ${FMT_INC_DIR})
+ install(FILES ${FMT_HEADERS} DESTINATION "${FMT_INC_DIR}/fmt")
install(FILES "${pkgconfig}" DESTINATION "${FMT_PKGCONFIG_DIR}")
endif ()
@@ -275,13 +330,20 @@ endif ()
# Control fuzzing independent of the unit tests.
if (FMT_FUZZ)
add_subdirectory(test/fuzzing)
+
+ # The FMT_FUZZ macro is used to prevent resource exhaustion in fuzzing
+ # mode and make fuzzing practically possible. It is similar to
+ # FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION but uses a different name to
+ # avoid interfering with fuzzing of projects that use {fmt}.
+ # See also https://llvm.org/docs/LibFuzzer.html#fuzzer-friendly-build-mode.
+ target_compile_definitions(fmt PUBLIC FMT_FUZZ)
endif ()
set(gitignore ${PROJECT_SOURCE_DIR}/.gitignore)
if (MASTER_PROJECT AND EXISTS ${gitignore})
# Get the list of ignored files from .gitignore.
file (STRINGS ${gitignore} lines)
- LIST(REMOVE_ITEM lines /doc/html)
+ list(REMOVE_ITEM lines /doc/html)
foreach (line ${lines})
string(REPLACE "." "[.]" line "${line}")
string(REPLACE "*" ".*" line "${line}")
diff --git a/Externals/fmt/CONTRIBUTING.md b/Externals/fmt/CONTRIBUTING.md
index 3532bd11e4..b82f145069 100644
--- a/Externals/fmt/CONTRIBUTING.md
+++ b/Externals/fmt/CONTRIBUTING.md
@@ -14,4 +14,7 @@ exceptions:
* snake_case should be used instead of UpperCamelCase for function and type
names
+All documentation must adhere to the [Google Developer Documentation Style
+Guide](https://developers.google.com/style).
+
Thanks for contributing!
diff --git a/Externals/fmt/ChangeLog.rst b/Externals/fmt/ChangeLog.rst
index 75a009e4c6..f9a2d8ebbe 100755
--- a/Externals/fmt/ChangeLog.rst
+++ b/Externals/fmt/ChangeLog.rst
@@ -1,3 +1,941 @@
+7.1.0 - 2020-10-25
+------------------
+
+* Switched from `Grisu3
+ <https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf>`_
+ to `Dragonbox <https://github.com/jk-jeon/dragonbox>`_ for the default
+ floating-point formatting which gives the shortest decimal representation
+ with round-trip guarantee and correct rounding
+ (`#1882 <https://github.com/fmtlib/fmt/pull/1882>`_,
+ `#1887 <https://github.com/fmtlib/fmt/pull/1887>`_,
+ `#1894 <https://github.com/fmtlib/fmt/pull/1894>`_). This makes {fmt} up to
+ 20-30x faster than common implementations of ``std::ostringstream`` and
+ ``sprintf`` on `dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_
+ and faster than double-conversion and Ryū:
+
+ .. image:: https://user-images.githubusercontent.com/576385/
+ 95684665-11719600-0ba8-11eb-8e5b-972ff4e49428.png
+
+ It is possible to get even better performance at the cost of larger binary
+ size by compiling with the ``FMT_USE_FULL_CACHE_DRAGONBOX`` macro set to 1.
+
+ Thanks `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_.
+
+* Added an experimental unsynchronized file output API which, together with
+ `format string compilation <https://fmt.dev/latest/api.html#compile-api>`_,
+ can give `5-9 times speed up compared to fprintf
+ <https://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html>`_
+ on common platforms (`godbolt <https://godbolt.org/z/nsTcG8>`__):
+
+ .. code:: c++
+
+ #include <fmt/os.h>
+
+ int main() {
+ auto f = fmt::output_file("guide");
+ f.print("The answer is {}.", 42);
+ }
+
+* Added a formatter for ``std::chrono::time_point<system_clock>``
+ (`#1819 <https://github.com/fmtlib/fmt/issues/1819>`_,
+ `#1837 <https://github.com/fmtlib/fmt/pull/1837>`_). For example
+ (`godbolt <https://godbolt.org/z/c4M6fh>`__):
+
+ .. code:: c++
+
+ #include <fmt/chrono.h>
+
+ int main() {
+ auto now = std::chrono::system_clock::now();
+ fmt::print("The time is {:%H:%M:%S}.\n", now);
+ }
+
+ Thanks `@adamburgess (Adam Burgess) <https://github.com/adamburgess>`_.
+
+* Added support for ranges with non-const ``begin``/``end`` to ``fmt::join``
+ (`#1784 <https://github.com/fmtlib/fmt/issues/1784>`_,
+ `#1786 <https://github.com/fmtlib/fmt/pull/1786>`_). For example
+ (`godbolt <https://godbolt.org/z/jP63Tv>`__):
+
+ .. code:: c++
+
+ #include <fmt/ranges.h>
+ #include <range/v3/view/filter.hpp>
+
+ int main() {
+ using std::literals::string_literals::operator""s;
+ auto strs = std::array{"a"s, "bb"s, "ccc"s};
+ auto range = strs | ranges::views::filter(
+ [] (const std::string &x) { return x.size() != 2; }
+ );
+ fmt::print("{}\n", fmt::join(range, ""));
+ }
+
+ prints "accc".
+
+ Thanks `@tonyelewis (Tony E Lewis) <https://github.com/tonyelewis>`_.
+
+* Added a ``memory_buffer::append`` overload that takes a range
+ (`#1806 <https://github.com/fmtlib/fmt/pull/1806>`_).
+ Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Improved handling of single code units in ``FMT_COMPILE``. For example:
+
+ .. code:: c++
+
+ #include <fmt/compile.h>
+
+ char* f(char* buf) {
+ return fmt::format_to(buf, FMT_COMPILE("x{}"), 42);
+ }
+
+ compiles to just (`godbolt <https://godbolt.org/z/5vncz3>`__):
+
+ .. code:: asm
+
+ _Z1fPc:
+ movb $120, (%rdi)
+ xorl %edx, %edx
+ cmpl $42, _ZN3fmt2v76detail10basic_dataIvE23zero_or_powers_of_10_32E+8(%rip)
+ movl $3, %eax
+ seta %dl
+ subl %edx, %eax
+ movzwl _ZN3fmt2v76detail10basic_dataIvE6digitsE+84(%rip), %edx
+ cltq
+ addq %rdi, %rax
+ movw %dx, -2(%rax)
+ ret
+
+ Here a single ``mov`` instruction writes ``'x'`` (``$120``) to the output
+ buffer.
+
+* Added dynamic width support to format string compilation
+ (`#1809 <https://github.com/fmtlib/fmt/issues/1809>`_).
+
+* Improved error reporting for unformattable types: now you'll get the type name
+ directly in the error message instead of the note:
+
+ .. code:: c++
+
+ #include <fmt/core.h>
+
+ struct how_about_no {};
+
+ int main() {
+ fmt::print("{}", how_about_no());
+ }
+
+ Error (`godbolt <https://godbolt.org/z/GoxM4e>`__):
+
+ ``fmt/core.h:1438:3: error: static_assert failed due to requirement
+ 'fmt::v7::formattable<how_about_no>()' "Cannot format an argument.
+ To make type T formattable provide a formatter<T> specialization:
+ https://fmt.dev/latest/api.html#udt"
+ ...``
+
+* Added the `make_args_checked <https://fmt.dev/7.1.0/api.html#argument-lists>`_
+ function template that allows you to write formatting functions with
+ compile-time format string checks and avoid binary code bloat
+ (`godbolt <https://godbolt.org/z/PEf9qr>`__):
+
+ .. code:: c++
+
+ void vlog(const char* file, int line, fmt::string_view format,
+ fmt::format_args args) {
+ fmt::print("{}: {}: ", file, line);
+ fmt::vprint(format, args);
+ }
+
+ template <typename S, typename... Args>
+ void log(const char* file, int line, const S& format, Args&&... args) {
+ vlog(file, line, format,
+ fmt::make_args_checked<Args...>(format, args...));
+ }
+
+ #define MY_LOG(format, ...) \
+ log(__FILE__, __LINE__, FMT_STRING(format), __VA_ARGS__)
+
+ MY_LOG("invalid squishiness: {}", 42);
+
+* Replaced ``snprintf`` fallback with a faster internal IEEE 754 ``float`` and
+ ``double`` formatter for arbitrary precision. For example
+ (`godbolt <https://godbolt.org/z/dPhWvj>`__):
+
+ .. code:: c++
+
+ #include <fmt/core.h>
+
+ int main() {
+ fmt::print("{:.500}\n", 4.9406564584124654E-324);
+ }
+
+ prints
+
+ ``4.9406564584124654417656879286822137236505980261432476442558568250067550727020875186529983636163599237979656469544571773092665671035593979639877479601078187812630071319031140452784581716784898210368871863605699873072305000638740915356498438731247339727316961514003171538539807412623856559117102665855668676818703956031062493194527159149245532930545654440112748012970999954193198940908041656332452475714786901472678015935523861155013480352649347201937902681071074917033322268447533357208324319360923829e-324``.
+
+* Made ``format_to_n`` and ``formatted_size`` part of the `core API
+ <https://fmt.dev/latest/api.html#core-api>`__
+ (`godbolt <https://godbolt.org/z/sPjY1K>`__):
+
+ .. code:: c++
+
+ #include <fmt/core.h>
+
+ int main() {
+ char buffer[10];
+ auto result = fmt::format_to_n(buffer, sizeof(buffer), "{}", 42);
+ }
+
+* Added ``fmt::format_to_n`` overload with format string compilation
+ (`#1764 <https://github.com/fmtlib/fmt/issues/1764>`_,
+ `#1767 <https://github.com/fmtlib/fmt/pull/1767>`_,
+ `#1869 <https://github.com/fmtlib/fmt/pull/1869>`_). For example
+ (`godbolt <https://godbolt.org/z/93h86q>`__):
+
+ .. code:: c++
+
+ #include <fmt/compile.h>
+
+ int main() {
+ char buffer[8];
+ fmt::format_to_n(buffer, sizeof(buffer), FMT_COMPILE("{}"), 42);
+ }
+
+ Thanks `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_,
+ `@alexezeder (Alexey Ochapov) <https://github.com/alexezeder>`_.
+
+* Added ``fmt::format_to`` overload that take ``text_style``
+ (`#1593 <https://github.com/fmtlib/fmt/issues/1593>`_,
+ `#1842 <https://github.com/fmtlib/fmt/issues/1842>`_,
+ `#1843 <https://github.com/fmtlib/fmt/pull/1843>`_). For example
+ (`godbolt <https://godbolt.org/z/91153r>`__):
+
+ .. code:: c++
+
+ #include <fmt/color.h>
+
+ int main() {
+ std::string out;
+ fmt::format_to(std::back_inserter(out),
+ fmt::emphasis::bold | fg(fmt::color::red),
+ "The answer is {}.", 42);
+ }
+
+ Thanks `@Naios (Denis Blank) <https://github.com/Naios>`_.
+
+* Made the ``#`` specifier emit trailing zeros in addition to the decimal point
+ (`#1797 <https://github.com/fmtlib/fmt/issues/1797>`_). For example
+ (`godbolt <https://godbolt.org/z/bhdcW9>`__):
+
+ .. code:: c++
+
+ #include <fmt/core.h>
+
+ int main() {
+ fmt::print("{:#.2g}", 0.5);
+ }
+
+ prints ``0.50``.
+
+* Changed the default floating point format to not include ``.0`` for
+ consistency with ``std::format`` and ``std::to_chars``
+ (`#1893 <https://github.com/fmtlib/fmt/issues/1893>`_,
+ `#1943 <https://github.com/fmtlib/fmt/issues/1943>`_). It is possible to get
+ the decimal point and trailing zero with the ``#`` specifier.
+
+* Fixed an issue with floating-point formatting that could result in addition of
+ a non-significant trailing zero in rare cases e.g. ``1.00e-34`` instead of
+ ``1.0e-34`` (`#1873 <https://github.com/fmtlib/fmt/issues/1873>`_,
+ `#1917 <https://github.com/fmtlib/fmt/issues/1917>`_).
+
+* Made ``fmt::to_string`` fallback on ``ostream`` insertion operator if
+ the ``formatter`` specialization is not provided
+ (`#1815 <https://github.com/fmtlib/fmt/issues/1815>`_,
+ `#1829 <https://github.com/fmtlib/fmt/pull/1829>`_).
+ Thanks `@alexezeder (Alexey Ochapov) <https://github.com/alexezeder>`_.
+
+* Added support for the append mode to the experimental file API and
+ improved ``fcntl.h`` detection.
+ (`#1847 <https://github.com/fmtlib/fmt/pull/1847>`_,
+ `#1848 <https://github.com/fmtlib/fmt/pull/1848>`_).
+ Thanks `@t-wiser <https://github.com/t-wiser>`_.
+
+* Fixed handling of types that have both an implicit conversion operator and
+ an overloaded ``ostream`` insertion operator
+ (`#1766 <https://github.com/fmtlib/fmt/issues/1766>`_).
+
+* Fixed a slicing issue in an internal iterator type
+ (`#1822 <https://github.com/fmtlib/fmt/pull/1822>`_).
+ Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Fixed an issue in locale-specific integer formatting
+ (`#1927 <https://github.com/fmtlib/fmt/issues/1927>`_).
+
+* Fixed handling of exotic code unit types
+ (`#1870 <https://github.com/fmtlib/fmt/issues/1870>`_,
+ `#1932 <https://github.com/fmtlib/fmt/issues/1932>`_).
+
+* Improved ``FMT_ALWAYS_INLINE``
+ (`#1878 <https://github.com/fmtlib/fmt/pull/1878>`_).
+ Thanks `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_.
+
+* Removed dependency on ``windows.h``
+ (`#1900 <https://github.com/fmtlib/fmt/pull/1900>`_).
+ Thanks `@bernd5 (Bernd Baumanns) <https://github.com/bernd5>`_.
+
+* Optimized counting of decimal digits on MSVC
+ (`#1890 <https://github.com/fmtlib/fmt/pull/1890>`_).
+ Thanks `@mwinterb <https://github.com/mwinterb>`_.
+
+* Improved documentation
+ (`#1772 <https://github.com/fmtlib/fmt/issues/1772>`_,
+ `#1775 <https://github.com/fmtlib/fmt/pull/1775>`_,
+ `#1792 <https://github.com/fmtlib/fmt/pull/1792>`_,
+ `#1838 <https://github.com/fmtlib/fmt/pull/1838>`_,
+ `#1888 <https://github.com/fmtlib/fmt/pull/1888>`_,
+ `#1918 <https://github.com/fmtlib/fmt/pull/1918>`_,
+ `#1939 <https://github.com/fmtlib/fmt/pull/1939>`_).
+ Thanks `@leolchat (Léonard Gérard) <https://github.com/leolchat>`_,
+ `@pepsiman (Malcolm Parsons) <https://github.com/pepsiman>`_,
+ `@Klaim (Joël Lamotte) <https://github.com/Klaim>`_,
+ `@ravijanjam (Ravi J) <https://github.com/ravijanjam>`_,
+ `@francesco-st <https://github.com/francesco-st>`_,
+ `@udnaan (Adnan) <https://github.com/udnaan>`_.
+
+* Added the ``FMT_REDUCE_INT_INSTANTIATIONS`` CMake option that reduces the
+ binary code size at the cost of some integer formatting performance. This can
+ be useful for extremely memory-constrained embedded systems
+ (`#1778 <https://github.com/fmtlib/fmt/issues/1778>`_,
+ `#1781 <https://github.com/fmtlib/fmt/pull/1781>`_).
+ Thanks `@kammce (Khalil Estell) <https://github.com/kammce>`_.
+
+* Added the ``FMT_USE_INLINE_NAMESPACES`` macro to control usage of inline
+ namespaces (`#1945 <https://github.com/fmtlib/fmt/pull/1945>`_).
+ Thanks `@darklukee <https://github.com/darklukee>`_.
+
+* Improved build configuration
+ (`#1760 <https://github.com/fmtlib/fmt/pull/1760>`_,
+ `#1770 <https://github.com/fmtlib/fmt/pull/1770>`_,
+ `#1779 <https://github.com/fmtlib/fmt/issues/1779>`_,
+ `#1783 <https://github.com/fmtlib/fmt/pull/1783>`_,
+ `#1823 <https://github.com/fmtlib/fmt/pull/1823>`_).
+ Thanks `@dvetutnev (Dmitriy Vetutnev) <https://github.com/dvetutnev>`_,
+ `@xvitaly (Vitaly Zaitsev) <https://github.com/xvitaly>`_,
+ `@tambry (Raul Tambre) <https://github.com/tambry>`_,
+ `@medithe <https://github.com/medithe>`_,
+ `@martinwuehrer (Martin Wührer) <https://github.com/martinwuehrer>`_.
+
+* Fixed various warnings and compilation issues
+ (`#1790 <https://github.com/fmtlib/fmt/pull/1790>`_,
+ `#1802 <https://github.com/fmtlib/fmt/pull/1802>`_,
+ `#1808 <https://github.com/fmtlib/fmt/pull/1808>`_,
+ `#1810 <https://github.com/fmtlib/fmt/issues/1810>`_,
+ `#1811 <https://github.com/fmtlib/fmt/issues/1811>`_,
+ `#1812 <https://github.com/fmtlib/fmt/pull/1812>`_,
+ `#1814 <https://github.com/fmtlib/fmt/pull/1814>`_,
+ `#1816 <https://github.com/fmtlib/fmt/pull/1816>`_,
+ `#1817 <https://github.com/fmtlib/fmt/pull/1817>`_,
+ `#1818 <https://github.com/fmtlib/fmt/pull/1818>`_,
+ `#1825 <https://github.com/fmtlib/fmt/issues/1825>`_,
+ `#1836 <https://github.com/fmtlib/fmt/pull/1836>`_,
+ `#1855 <https://github.com/fmtlib/fmt/pull/1855>`_,
+ `#1856 <https://github.com/fmtlib/fmt/pull/1856>`_,
+ `#1860 <https://github.com/fmtlib/fmt/pull/1860>`_,
+ `#1877 <https://github.com/fmtlib/fmt/pull/1877>`_,
+ `#1879 <https://github.com/fmtlib/fmt/pull/1879>`_,
+ `#1880 <https://github.com/fmtlib/fmt/pull/1880>`_,
+ `#1896 <https://github.com/fmtlib/fmt/issues/1896>`_,
+ `#1897 <https://github.com/fmtlib/fmt/pull/1897>`_,
+ `#1898 <https://github.com/fmtlib/fmt/pull/1898>`_,
+ `#1904 <https://github.com/fmtlib/fmt/issues/1904>`_,
+ `#1908 <https://github.com/fmtlib/fmt/pull/1908>`_,
+ `#1911 <https://github.com/fmtlib/fmt/issues/1911>`_,
+ `#1912 <https://github.com/fmtlib/fmt/issues/1912>`_,
+ `#1928 <https://github.com/fmtlib/fmt/issues/1928>`_,
+ `#1929 <https://github.com/fmtlib/fmt/pull/1929>`_,
+ `#1935 <https://github.com/fmtlib/fmt/issues/1935>`_
+ `#1937 <https://github.com/fmtlib/fmt/pull/1937>`_,
+ `#1942 <https://github.com/fmtlib/fmt/pull/1942>`_,
+ `#1949 <https://github.com/fmtlib/fmt/issues/1949>`_).
+ Thanks `@TheQwertiest <https://github.com/TheQwertiest>`_,
+ `@medithe <https://github.com/medithe>`_,
+ `@martinwuehrer (Martin Wührer) <https://github.com/martinwuehrer>`_,
+ `@n16h7hunt3r <https://github.com/n16h7hunt3r>`_,
+ `@Othereum (Seokjin Lee) <https://github.com/Othereum>`_,
+ `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
+ `@AlexanderLanin (Alexander Lanin) <https://github.com/AlexanderLanin>`_,
+ `@gcerretani (Giovanni Cerretani) <https://github.com/gcerretani>`_,
+ `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_,
+ `@noizefloor (Jan Schwers) <https://github.com/noizefloor>`_,
+ `@akohlmey (Axel Kohlmeyer) <https://github.com/akohlmey>`_,
+ `@jk-jeon (Junekey Jeon) <https://github.com/jk-jeon>`_,
+ `@rimathia <https://github.com/rimathia>`_,
+ `@rglarix (Riccardo Ghetta (larix)) <https://github.com/rglarix>`_,
+ `@moiwi <https://github.com/moiwi>`_,
+ `@heckad (Kazantcev Andrey) <https://github.com/heckad>`_,
+ `@MarcDirven <https://github.com/MarcDirven>`_.
+ `@BartSiwek (Bart Siwek) <https://github.com/BartSiwek>`_,
+ `@darklukee <https://github.com/darklukee>`_.
+
+7.0.3 - 2020-08-06
+------------------
+
+* Worked around broken ``numeric_limits`` for 128-bit integers
+ (`#1787 <https://github.com/fmtlib/fmt/issues/1787>`_).
+
+* Added error reporting on missing named arguments
+ (`#1796 <https://github.com/fmtlib/fmt/issues/1796>`_).
+
+* Stopped using 128-bit integers with clang-cl
+ (`#1800 <https://github.com/fmtlib/fmt/pull/1800>`_).
+ Thanks `@Kingcom <https://github.com/Kingcom>`_.
+
+* Fixed issues in locale-specific integer formatting
+ (`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_,
+ `#1801 <https://github.com/fmtlib/fmt/issues/1801>`_).
+
+7.0.2 - 2020-07-29
+------------------
+
+* Worked around broken ``numeric_limits`` for 128-bit integers
+ (`#1725 <https://github.com/fmtlib/fmt/issues/1725>`_).
+
+* Fixed compatibility with CMake 3.4
+ (`#1779 <https://github.com/fmtlib/fmt/issues/1779>`_).
+
+* Fixed handling of digit separators in locale-specific formatting
+ (`#1782 <https://github.com/fmtlib/fmt/issues/1782>`_).
+
+7.0.1 - 2020-07-07
+------------------
+
+* Updated the inline version namespace name.
+
+* Worked around a gcc bug in mangling of alias templates
+ (`#1753 <https://github.com/fmtlib/fmt/issues/1753>`_).
+
+* Fixed a linkage error on Windows
+ (`#1757 <https://github.com/fmtlib/fmt/issues/1757>`_).
+ Thanks `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_.
+
+* Fixed minor issues with the documentation.
+
+7.0.0 - 2020-07-05
+------------------
+
+* Reduced the library size. For example, on macOS a stripped test binary
+ statically linked with {fmt} `shrank from ~368k to less than 100k
+ <http://www.zverovich.net/2020/05/21/reducing-library-size.html>`_.
+
+* Added a simpler and more efficient `format string compilation API
+ <https://fmt.dev/7.0.0/api.html#compile-api>`_:
+
+ .. code:: c++
+
+ #include <fmt/compile.h>
+
+ // Converts 42 into std::string using the most efficient method and no
+ // runtime format string processing.
+ std::string s = fmt::format(FMT_COMPILE("{}"), 42);
+
+ The old ``fmt::compile`` API is now deprecated.
+
+* Optimized integer formatting: ``format_to`` with format string compilation
+ and a stack-allocated buffer is now `faster than to_chars on both
+ libc++ and libstdc++
+ <http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
+
+* Optimized handling of small format strings. For example,
+
+ .. code:: c++
+
+ fmt::format("Result: {}: ({},{},{},{})", str1, str2, str3, str4, str5)
+
+ is now ~40% faster (`#1685 <https://github.com/fmtlib/fmt/issues/1685>`_).
+
+* Applied extern templates to improve compile times when using the core API
+ and ``fmt/format.h`` (`#1452 <https://github.com/fmtlib/fmt/issues/1452>`_).
+ For example, on macOS with clang the compile time of a test translation unit
+ dropped from 2.3s to 0.3s with ``-O2`` and from 0.6s to 0.3s with the default
+ settings (``-O0``).
+
+ Before (``-O2``)::
+
+ % time c++ -c test.cc -I include -std=c++17 -O2
+ c++ -c test.cc -I include -std=c++17 -O2 2.22s user 0.08s system 99% cpu 2.311 total
+
+ After (``-O2``)::
+
+ % time c++ -c test.cc -I include -std=c++17 -O2
+ c++ -c test.cc -I include -std=c++17 -O2 0.26s user 0.04s system 98% cpu 0.303 total
+
+ Before (default)::
+
+ % time c++ -c test.cc -I include -std=c++17
+ c++ -c test.cc -I include -std=c++17 0.53s user 0.06s system 98% cpu 0.601 total
+
+ After (default)::
+
+ % time c++ -c test.cc -I include -std=c++17
+ c++ -c test.cc -I include -std=c++17 0.24s user 0.06s system 98% cpu 0.301 total
+
+ It is still recommended to use ``fmt/core.h`` instead of ``fmt/format.h`` but
+ the compile time difference is now smaller. Thanks
+ `@alex3d <https://github.com/alex3d>`_ for the suggestion.
+
+* Named arguments are now stored on stack (no dynamic memory allocations) and
+ the compiled code is more compact and efficient. For example
+
+ .. code:: c++
+
+ #include <fmt/core.h>
+
+ int main() {
+ fmt::print("The answer is {answer}\n", fmt::arg("answer", 42));
+ }
+
+ compiles to just (`godbolt <https://godbolt.org/z/NcfEp_>`__)
+
+ .. code:: asm
+
+ .LC0:
+ .string "answer"
+ .LC1:
+ .string "The answer is {answer}\n"
+ main:
+ sub rsp, 56
+ mov edi, OFFSET FLAT:.LC1
+ mov esi, 23
+ movabs rdx, 4611686018427387905
+ lea rax, [rsp+32]
+ lea rcx, [rsp+16]
+ mov QWORD PTR [rsp+8], 1
+ mov QWORD PTR [rsp], rax
+ mov DWORD PTR [rsp+16], 42
+ mov QWORD PTR [rsp+32], OFFSET FLAT:.LC0
+ mov DWORD PTR [rsp+40], 0
+ call fmt::v6::vprint(fmt::v6::basic_string_view<char>,
+ fmt::v6::format_args)
+ xor eax, eax
+ add rsp, 56
+ ret
+
+ .L.str.1:
+ .asciz "answer"
+
+* Implemented compile-time checks for dynamic width and precision
+ (`#1614 <https://github.com/fmtlib/fmt/issues/1614>`_):
+
+ .. code:: c++
+
+ #include <fmt/format.h>
+
+ int main() {
+ fmt::print(FMT_STRING("{0:{1}}"), 42);
+ }
+
+ now gives a compilation error because argument 1 doesn't exist::
+
+ In file included from test.cc:1:
+ include/fmt/format.h:2726:27: error: constexpr variable 'invalid_format' must be
+ initialized by a constant expression
+ FMT_CONSTEXPR_DECL bool invalid_format =
+ ^
+ ...
+ include/fmt/core.h:569:26: note: in call to
+ '&checker(s, {}).context_->on_error(&"argument not found"[0])'
+ if (id >= num_args_) on_error("argument not found");
+ ^
+
+* Added sentinel support to ``fmt::join``
+ (`#1689 <https://github.com/fmtlib/fmt/pull/1689>`_)
+
+ .. code:: c++
+
+ struct zstring_sentinel {};
+ bool operator==(const char* p, zstring_sentinel) { return *p == '\0'; }
+ bool operator!=(const char* p, zstring_sentinel) { return *p != '\0'; }
+
+ struct zstring {
+ const char* p;
+ const char* begin() const { return p; }
+ zstring_sentinel end() const { return {}; }
+ };
+
+ auto s = fmt::format("{}", fmt::join(zstring{"hello"}, "_"));
+ // s == "h_e_l_l_o"
+
+ Thanks `@BRevzin (Barry Revzin) <https://github.com/BRevzin>`_.
+
+* Added support for named arguments, ``clear`` and ``reserve`` to
+ ``dynamic_format_arg_store``
+ (`#1655 <https://github.com/fmtlib/fmt/issues/1655>`_,
+ `#1663 <https://github.com/fmtlib/fmt/pull/1663>`_,
+ `#1674 <https://github.com/fmtlib/fmt/pull/1674>`_,
+ `#1677 <https://github.com/fmtlib/fmt/pull/1677>`_).
+ Thanks `@vsolontsov-ll (Vladimir Solontsov)
+ <https://github.com/vsolontsov-ll>`_.
+
+* Added support for the ``'c'`` format specifier to integral types for
+ compatibility with ``std::format``
+ (`#1652 <https://github.com/fmtlib/fmt/issues/1652>`_).
+
+* Replaced the ``'n'`` format specifier with ``'L'`` for compatibility with
+ ``std::format`` (`#1624 <https://github.com/fmtlib/fmt/issues/1624>`_).
+ The ``'n'`` specifier can be enabled via the ``FMT_DEPRECATED_N_SPECIFIER``
+ macro.
+
+* The ``'='`` format specifier is now disabled by default for compatibility with
+ ``std::format``. It can be enabled via the ``FMT_DEPRECATED_NUMERIC_ALIGN``
+ macro.
+
+* Removed the following deprecated APIs:
+
+ * ``FMT_STRING_ALIAS`` and ``fmt`` macros - replaced by ``FMT_STRING``
+ * ``fmt::basic_string_view::char_type`` - replaced by
+ ``fmt::basic_string_view::value_type``
+ * ``convert_to_int``
+ * ``format_arg_store::types``
+ * ``*parse_context`` - replaced by ``*format_parse_context``
+ * ``FMT_DEPRECATED_INCLUDE_OS``
+ * ``FMT_DEPRECATED_PERCENT`` - incompatible with ``std::format``
+ * ``*writer`` - replaced by compiled format API
+
+* Renamed the ``internal`` namespace to ``detail``
+ (`#1538 <https://github.com/fmtlib/fmt/issues/1538>`_). The former is still
+ provided as an alias if the ``FMT_USE_INTERNAL`` macro is defined.
+
+* Improved compatibility between ``fmt::printf`` with the standard specs
+ (`#1595 <https://github.com/fmtlib/fmt/issues/1595>`_,
+ `#1682 <https://github.com/fmtlib/fmt/pull/1682>`_,
+ `#1683 <https://github.com/fmtlib/fmt/pull/1683>`_,
+ `#1687 <https://github.com/fmtlib/fmt/pull/1687>`_,
+ `#1699 <https://github.com/fmtlib/fmt/pull/1699>`_).
+ Thanks `@rimathia <https://github.com/rimathia>`_.
+
+* Fixed handling of ``operator<<`` overloads that use ``copyfmt``
+ (`#1666 <https://github.com/fmtlib/fmt/issues/1666>`_).
+
+* Added the ``FMT_OS`` CMake option to control inclusion of OS-specific APIs
+ in the fmt target. This can be useful for embedded platforms
+ (`#1654 <https://github.com/fmtlib/fmt/issues/1654>`_,
+ `#1656 <https://github.com/fmtlib/fmt/pull/1656>`_).
+ Thanks `@kwesolowski (Krzysztof Wesolowski)
+ <https://github.com/kwesolowski>`_.
+
+* Replaced ``FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION`` with the ``FMT_FUZZ``
+ macro to prevent interferring with fuzzing of projects using {fmt}
+ (`#1650 <https://github.com/fmtlib/fmt/pull/1650>`_).
+ Thanks `@asraa (Asra Ali) <https://github.com/asraa>`_.
+
+* Fixed compatibility with emscripten
+ (`#1636 <https://github.com/fmtlib/fmt/issues/1636>`_,
+ `#1637 <https://github.com/fmtlib/fmt/pull/1637>`_).
+ Thanks `@ArthurSonzogni (Arthur Sonzogni)
+ <https://github.com/ArthurSonzogni>`_.
+
+* Improved documentation
+ (`#704 <https://github.com/fmtlib/fmt/issues/704>`_,
+ `#1643 <https://github.com/fmtlib/fmt/pull/1643>`_,
+ `#1660 <https://github.com/fmtlib/fmt/pull/1660>`_,
+ `#1681 <https://github.com/fmtlib/fmt/pull/1681>`_,
+ `#1691 <https://github.com/fmtlib/fmt/pull/1691>`_,
+ `#1706 <https://github.com/fmtlib/fmt/pull/1706>`_,
+ `#1714 <https://github.com/fmtlib/fmt/pull/1714>`_,
+ `#1721 <https://github.com/fmtlib/fmt/pull/1721>`_,
+ `#1739 <https://github.com/fmtlib/fmt/pull/1739>`_,
+ `#1740 <https://github.com/fmtlib/fmt/pull/1740>`_,
+ `#1741 <https://github.com/fmtlib/fmt/pull/1741>`_,
+ `#1751 <https://github.com/fmtlib/fmt/pull/1751>`_).
+ Thanks `@senior7515 (Alexander Gallego) <https://github.com/senior7515>`_,
+ `@lsr0 (Lindsay Roberts) <https://github.com/lsr0>`_,
+ `@puetzk (Kevin Puetz) <https://github.com/puetzk>`_,
+ `@fpelliccioni (Fernando Pelliccioni) <https://github.com/fpelliccioni>`_,
+ Alexey Kuzmenko, `@jelly (jelle van der Waa) <https://github.com/jelly>`_,
+ `@claremacrae (Clare Macrae) <https://github.com/claremacrae>`_,
+ `@jiapengwen (文佳鹏) <https://github.com/jiapengwen>`_,
+ `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
+ `@alexey-milovidov <https://github.com/alexey-milovidov>`_.
+
+* Implemented various build configuration fixes and improvements
+ (`#1603 <https://github.com/fmtlib/fmt/pull/1603>`_,
+ `#1657 <https://github.com/fmtlib/fmt/pull/1657>`_,
+ `#1702 <https://github.com/fmtlib/fmt/pull/1702>`_,
+ `#1728 <https://github.com/fmtlib/fmt/pull/1728>`_).
+ Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_,
+ `@jtojnar (Jan Tojnar) <https://github.com/jtojnar>`_,
+ `@orivej (Orivej Desh) <https://github.com/orivej>`_,
+ `@flagarde <https://github.com/flagarde>`_.
+
+* Fixed various warnings and compilation issues
+ (`#1616 <https://github.com/fmtlib/fmt/pull/1616>`_,
+ `#1620 <https://github.com/fmtlib/fmt/issues/1620>`_,
+ `#1622 <https://github.com/fmtlib/fmt/issues/1622>`_,
+ `#1625 <https://github.com/fmtlib/fmt/issues/1625>`_,
+ `#1627 <https://github.com/fmtlib/fmt/pull/1627>`_,
+ `#1628 <https://github.com/fmtlib/fmt/issues/1628>`_,
+ `#1629 <https://github.com/fmtlib/fmt/pull/1629>`_,
+ `#1631 <https://github.com/fmtlib/fmt/issues/1631>`_,
+ `#1633 <https://github.com/fmtlib/fmt/pull/1633>`_,
+ `#1649 <https://github.com/fmtlib/fmt/pull/1649>`_,
+ `#1658 <https://github.com/fmtlib/fmt/issues/1658>`_,
+ `#1661 <https://github.com/fmtlib/fmt/pull/1661>`_,
+ `#1667 <https://github.com/fmtlib/fmt/pull/1667>`_,
+ `#1668 <https://github.com/fmtlib/fmt/issues/1668>`_,
+ `#1669 <https://github.com/fmtlib/fmt/pull/1669>`_,
+ `#1692 <https://github.com/fmtlib/fmt/issues/1692>`_,
+ `#1696 <https://github.com/fmtlib/fmt/pull/1696>`_,
+ `#1697 <https://github.com/fmtlib/fmt/pull/1697>`_,
+ `#1707 <https://github.com/fmtlib/fmt/issues/1707>`_,
+ `#1712 <https://github.com/fmtlib/fmt/pull/1712>`_,
+ `#1716 <https://github.com/fmtlib/fmt/pull/1716>`_,
+ `#1722 <https://github.com/fmtlib/fmt/pull/1722>`_,
+ `#1724 <https://github.com/fmtlib/fmt/issues/1724>`_,
+ `#1729 <https://github.com/fmtlib/fmt/pull/1729>`_,
+ `#1738 <https://github.com/fmtlib/fmt/pull/1738>`_,
+ `#1742 <https://github.com/fmtlib/fmt/issues/1742>`_,
+ `#1743 <https://github.com/fmtlib/fmt/issues/1743>`_,
+ `#1744 <https://github.com/fmtlib/fmt/pull/1744>`_,
+ `#1747 <https://github.com/fmtlib/fmt/issues/1747>`_,
+ `#1750 <https://github.com/fmtlib/fmt/pull/1750>`_).
+ Thanks `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
+ `@gabime (Gabi Melman) <https://github.com/gabime>`_,
+ `@johnor (Johan) <https://github.com/johnor>`_,
+ `@Kurkin (Dmitry Kurkin) <https://github.com/Kurkin>`_,
+ `@invexed (James Beach) <https://github.com/invexed>`_,
+ `@peterbell10 <https://github.com/peterbell10>`_,
+ `@daixtrose (Markus Werle) <https://github.com/daixtrose>`_,
+ `@petrutlucian94 (Lucian Petrut) <https://github.com/petrutlucian94>`_,
+ `@Neargye (Daniil Goncharov) <https://github.com/Neargye>`_,
+ `@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_,
+ `@gabime (Gabi Melman) <https://github.com/gabime>`_,
+ `@erthink (Leonid Yuriev) <https://github.com/erthink>`_,
+ `@tohammer (Tobias Hammer) <https://github.com/tohammer>`_,
+ `@0x8000-0000 (Florin Iucha) <https://github.com/0x8000-0000>`_.
+
+6.2.1 - 2020-05-09
+------------------
+
+* Fixed ostream support in ``sprintf``
+ (`#1631 <https://github.com/fmtlib/fmt/issues/1631>`_).
+
+* Fixed type detection when using implicit conversion to ``string_view`` and
+ ostream ``operator<<`` inconsistently
+ (`#1662 <https://github.com/fmtlib/fmt/issues/1662>`_).
+
+6.2.0 - 2020-04-05
+------------------
+
+* Improved error reporting when trying to format an object of a non-formattable
+ type:
+
+ .. code:: c++
+
+ fmt::format("{}", S());
+
+ now gives::
+
+ include/fmt/core.h:1015:5: error: static_assert failed due to requirement
+ 'formattable' "Cannot format argument. To make type T formattable provide a
+ formatter<T> specialization:
+ https://fmt.dev/latest/api.html#formatting-user-defined-types"
+ static_assert(
+ ^
+ ...
+ note: in instantiation of function template specialization
+ 'fmt::v6::format<char [3], S, char>' requested here
+ fmt::format("{}", S());
+ ^
+
+ if ``S`` is not formattable.
+
+* Reduced the library size by ~10%.
+
+* Always print decimal point if ``#`` is specified
+ (`#1476 <https://github.com/fmtlib/fmt/issues/1476>`_,
+ `#1498 <https://github.com/fmtlib/fmt/issues/1498>`_):
+
+ .. code:: c++
+
+ fmt::print("{:#.0f}", 42.0);
+
+ now prints ``42.``
+
+* Implemented the ``'L'`` specifier for locale-specific numeric formatting to
+ improve compatibility with ``std::format``. The ``'n'`` specifier is now
+ deprecated and will be removed in the next major release.
+
+* Moved OS-specific APIs such as ``windows_error`` from ``fmt/format.h`` to
+ ``fmt/os.h``. You can define ``FMT_DEPRECATED_INCLUDE_OS`` to automatically
+ include ``fmt/os.h`` from ``fmt/format.h`` for compatibility but this will be
+ disabled in the next major release.
+
+* Added precision overflow detection in floating-point formatting.
+
+* Implemented detection of invalid use of ``fmt::arg``.
+
+* Used ``type_identity`` to block unnecessary template argument deduction.
+ Thanks Tim Song.
+
+* Improved UTF-8 handling
+ (`#1109 <https://github.com/fmtlib/fmt/issues/1109>`_):
+
+ .. code:: c++
+
+ fmt::print("┌{0:─^{2}}┐\n"
+ "│{1: ^{2}}│\n"
+ "└{0:─^{2}}┘\n", "", "Привет, мир!", 20);
+
+ now prints::
+
+ ┌────────────────────┐
+ │ Привет, мир! │
+ └────────────────────┘
+
+ on systems that support Unicode.
+
+* Added experimental dynamic argument storage
+ (`#1170 <https://github.com/fmtlib/fmt/issues/1170>`_,
+ `#1584 <https://github.com/fmtlib/fmt/pull/1584>`_):
+
+ .. code:: c++
+
+ fmt::dynamic_format_arg_store<fmt::format_context> store;
+ store.push_back("answer");
+ store.push_back(42);
+ fmt::vprint("The {} is {}.\n", store);
+
+ prints::
+
+ The answer is 42.
+
+ Thanks `@vsolontsov-ll (Vladimir Solontsov)
+ <https://github.com/vsolontsov-ll>`_.
+
+* Made ``fmt::join`` accept ``initializer_list``
+ (`#1591 <https://github.com/fmtlib/fmt/pull/1591>`_).
+ Thanks `@Rapotkinnik (Nikolay Rapotkin) <https://github.com/Rapotkinnik>`_.
+
+* Fixed handling of empty tuples
+ (`#1588 <https://github.com/fmtlib/fmt/issues/1588>`_).
+
+* Fixed handling of output iterators in ``format_to_n``
+ (`#1506 <https://github.com/fmtlib/fmt/issues/1506>`_).
+
+* Fixed formatting of ``std::chrono::duration`` types to wide output
+ (`#1533 <https://github.com/fmtlib/fmt/pull/1533>`_).
+ Thanks `@zeffy (pilao) <https://github.com/zeffy>`_.
+
+* Added const ``begin`` and ``end`` overload to buffers
+ (`#1553 <https://github.com/fmtlib/fmt/pull/1553>`_).
+ Thanks `@dominicpoeschko <https://github.com/dominicpoeschko>`_.
+
+* Added the ability to disable floating-point formatting via ``FMT_USE_FLOAT``,
+ ``FMT_USE_DOUBLE`` and ``FMT_USE_LONG_DOUBLE`` macros for extremely
+ memory-constrained embedded system
+ (`#1590 <https://github.com/fmtlib/fmt/pull/1590>`_).
+ Thanks `@albaguirre (Alberto Aguirre) <https://github.com/albaguirre>`_.
+
+* Made ``FMT_STRING`` work with ``constexpr`` ``string_view``
+ (`#1589 <https://github.com/fmtlib/fmt/pull/1589>`_).
+ Thanks `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_.
+
+* Implemented a minor optimization in the format string parser
+ (`#1560 <https://github.com/fmtlib/fmt/pull/1560>`_).
+ Thanks `@IkarusDeveloper <https://github.com/IkarusDeveloper>`_.
+
+* Improved attribute detection
+ (`#1469 <https://github.com/fmtlib/fmt/pull/1469>`_,
+ `#1475 <https://github.com/fmtlib/fmt/pull/1475>`_,
+ `#1576 <https://github.com/fmtlib/fmt/pull/1576>`_).
+ Thanks `@federico-busato (Federico) <https://github.com/federico-busato>`_,
+ `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_,
+ `@refnum <https://github.com/refnum>`_.
+
+* Improved documentation
+ (`#1481 <https://github.com/fmtlib/fmt/pull/1481>`_,
+ `#1523 <https://github.com/fmtlib/fmt/pull/1523>`_).
+ Thanks `@JackBoosY (Jack·Boos·Yu) <https://github.com/JackBoosY>`_,
+ `@imba-tjd (谭九鼎) <https://github.com/imba-tjd>`_.
+
+* Fixed symbol visibility on Linux when compiling with ``-fvisibility=hidden``
+ (`#1535 <https://github.com/fmtlib/fmt/pull/1535>`_).
+ Thanks `@milianw (Milian Wolff) <https://github.com/milianw>`_.
+
+* Implemented various build configuration fixes and improvements
+ (`#1264 <https://github.com/fmtlib/fmt/issues/1264>`_,
+ `#1460 <https://github.com/fmtlib/fmt/issues/1460>`_,
+ `#1534 <https://github.com/fmtlib/fmt/pull/1534>`_,
+ `#1536 <https://github.com/fmtlib/fmt/issues/1536>`_,
+ `#1545 <https://github.com/fmtlib/fmt/issues/1545>`_,
+ `#1546 <https://github.com/fmtlib/fmt/pull/1546>`_,
+ `#1566 <https://github.com/fmtlib/fmt/issues/1566>`_,
+ `#1582 <https://github.com/fmtlib/fmt/pull/1582>`_,
+ `#1597 <https://github.com/fmtlib/fmt/issues/1597>`_,
+ `#1598 <https://github.com/fmtlib/fmt/pull/1598>`_).
+ Thanks `@ambitslix (Attila M. Szilagyi) <https://github.com/ambitslix>`_,
+ `@jwillikers (Jordan Williams) <https://github.com/jwillikers>`_,
+ `@stac47 (Laurent Stacul) <https://github.com/stac47>`_.
+
+* Fixed various warnings and compilation issues
+ (`#1433 <https://github.com/fmtlib/fmt/pull/1433>`_,
+ `#1461 <https://github.com/fmtlib/fmt/issues/1461>`_,
+ `#1470 <https://github.com/fmtlib/fmt/pull/1470>`_,
+ `#1480 <https://github.com/fmtlib/fmt/pull/1480>`_,
+ `#1485 <https://github.com/fmtlib/fmt/pull/1485>`_,
+ `#1492 <https://github.com/fmtlib/fmt/pull/1492>`_,
+ `#1493 <https://github.com/fmtlib/fmt/issues/1493>`_,
+ `#1504 <https://github.com/fmtlib/fmt/issues/1504>`_,
+ `#1505 <https://github.com/fmtlib/fmt/pull/1505>`_,
+ `#1512 <https://github.com/fmtlib/fmt/pull/1512>`_,
+ `#1515 <https://github.com/fmtlib/fmt/issues/1515>`_,
+ `#1516 <https://github.com/fmtlib/fmt/pull/1516>`_,
+ `#1518 <https://github.com/fmtlib/fmt/pull/1518>`_,
+ `#1519 <https://github.com/fmtlib/fmt/pull/1519>`_,
+ `#1520 <https://github.com/fmtlib/fmt/pull/1520>`_,
+ `#1521 <https://github.com/fmtlib/fmt/pull/1521>`_,
+ `#1522 <https://github.com/fmtlib/fmt/pull/1522>`_,
+ `#1524 <https://github.com/fmtlib/fmt/issues/1524>`_,
+ `#1530 <https://github.com/fmtlib/fmt/pull/1530>`_,
+ `#1531 <https://github.com/fmtlib/fmt/issues/1531>`_,
+ `#1532 <https://github.com/fmtlib/fmt/pull/1532>`_,
+ `#1539 <https://github.com/fmtlib/fmt/issues/1539>`_,
+ `#1547 <https://github.com/fmtlib/fmt/issues/1547>`_,
+ `#1548 <https://github.com/fmtlib/fmt/issues/1548>`_,
+ `#1554 <https://github.com/fmtlib/fmt/pull/1554>`_,
+ `#1567 <https://github.com/fmtlib/fmt/issues/1567>`_,
+ `#1568 <https://github.com/fmtlib/fmt/pull/1568>`_,
+ `#1569 <https://github.com/fmtlib/fmt/pull/1569>`_,
+ `#1571 <https://github.com/fmtlib/fmt/pull/1571>`_,
+ `#1573 <https://github.com/fmtlib/fmt/pull/1573>`_,
+ `#1575 <https://github.com/fmtlib/fmt/pull/1575>`_,
+ `#1581 <https://github.com/fmtlib/fmt/pull/1581>`_,
+ `#1583 <https://github.com/fmtlib/fmt/issues/1583>`_,
+ `#1586 <https://github.com/fmtlib/fmt/issues/1586>`_,
+ `#1587 <https://github.com/fmtlib/fmt/issues/1587>`_,
+ `#1594 <https://github.com/fmtlib/fmt/issues/1594>`_,
+ `#1596 <https://github.com/fmtlib/fmt/pull/1596>`_,
+ `#1604 <https://github.com/fmtlib/fmt/issues/1604>`_,
+ `#1606 <https://github.com/fmtlib/fmt/pull/1606>`_,
+ `#1607 <https://github.com/fmtlib/fmt/issues/1607>`_,
+ `#1609 <https://github.com/fmtlib/fmt/issues/1609>`_).
+ Thanks `@marti4d (Chris Martin) <https://github.com/marti4d>`_,
+ `@iPherian <https://github.com/iPherian>`_,
+ `@parkertomatoes <https://github.com/parkertomatoes>`_,
+ `@gsjaardema (Greg Sjaardema) <https://github.com/gsjaardema>`_,
+ `@chronoxor (Ivan Shynkarenka) <https://github.com/chronoxor>`_,
+ `@DanielaE (Daniela Engert) <https://github.com/DanielaE>`_,
+ `@torsten48 <https://github.com/torsten48>`_,
+ `@tohammer (Tobias Hammer) <https://github.com/tohammer>`_,
+ `@lefticus (Jason Turner) <https://github.com/lefticus>`_,
+ `@ryusakki (Haise) <https://github.com/ryusakki>`_,
+ `@adnsv (Alex Denisov) <https://github.com/adnsv>`_,
+ `@fghzxm <https://github.com/fghzxm>`_,
+ `@refnum <https://github.com/refnum>`_,
+ `@pramodk (Pramod Kumbhar) <https://github.com/pramodk>`_,
+ `@Spirrwell <https://github.com/Spirrwell>`_,
+ `@scramsby (Scott Ramsby) <https://github.com/scramsby>`_.
+
6.1.2 - 2019-12-11
------------------
@@ -374,16 +1312,16 @@
#include <fmt/compile.h>
auto f = fmt::compile<int>("{}");
- std::string s = fmt::format(f, 42); // can be called multiple times to format
- // different values
+ std::string s = fmt::format(f, 42); // can be called multiple times to
+ // format different values
// s == "42"
It moves the cost of parsing a format string outside of the format function
which can be beneficial when identically formatting many objects of the same
types. Thanks `@stryku (Mateusz Janek) <https://github.com/stryku>`_.
-* Added the ``%`` format specifier that formats floating-point values as
- percentages (`#1060 <https://github.com/fmtlib/fmt/pull/1060>`_,
+* Added experimental ``%`` format specifier that formats floating-point values
+ as percentages (`#1060 <https://github.com/fmtlib/fmt/pull/1060>`_,
`#1069 <https://github.com/fmtlib/fmt/pull/1069>`_,
`#1071 <https://github.com/fmtlib/fmt/pull/1071>`_):
@@ -1146,7 +2084,7 @@
* Implemented ``constexpr`` parsing of format strings and `compile-time format
string checks
- <https://fmt.dev/dev/api.html#compile-time-format-string-checks>`_. For
+ <https://fmt.dev/latest/api.html#compile-time-format-string-checks>`_. For
example
.. code:: c++
@@ -1207,7 +2145,7 @@
throw format_error("invalid specifier");
* Added `iterator support
- <https://fmt.dev/dev/api.html#output-iterator-support>`_:
+ <https://fmt.dev/latest/api.html#output-iterator-support>`_:
.. code:: c++
@@ -1218,7 +2156,7 @@
fmt::format_to(std::back_inserter(out), "{}", 42);
* Added the `format_to_n
- <https://fmt.dev/dev/api.html#_CPPv2N3fmt11format_to_nE8OutputItNSt6size_tE11string_viewDpRK4Args>`_
+ <https://fmt.dev/latest/api.html#_CPPv2N3fmt11format_to_nE8OutputItNSt6size_tE11string_viewDpRK4Args>`_
function that restricts the output to the specified number of characters
(`#298 <https://github.com/fmtlib/fmt/issues/298>`_):
@@ -1229,7 +2167,7 @@
// out == "1234" (without terminating '\0')
* Added the `formatted_size
- <https://fmt.dev/dev/api.html#_CPPv2N3fmt14formatted_sizeE11string_viewDpRK4Args>`_
+ <https://fmt.dev/latest/api.html#_CPPv2N3fmt14formatted_sizeE11string_viewDpRK4Args>`_
function for computing the output size:
.. code:: c++
@@ -1239,7 +2177,7 @@
auto size = fmt::formatted_size("{}", 12345); // size == 5
* Improved compile times by reducing dependencies on standard headers and
- providing a lightweight `core API <https://fmt.dev/dev/api.html#core-api>`_:
+ providing a lightweight `core API <https://fmt.dev/latest/api.html#core-api>`_:
.. code:: c++
@@ -1251,7 +2189,7 @@
<https://github.com/fmtlib/fmt#compile-time-and-code-bloat>`_.
* Added the `make_format_args
- <https://fmt.dev/dev/api.html#_CPPv2N3fmt16make_format_argsEDpRK4Args>`_
+ <https://fmt.dev/latest/api.html#_CPPv2N3fmt16make_format_argsEDpRK4Args>`_
function for capturing formatting arguments:
.. code:: c++
@@ -1333,7 +2271,7 @@
fmt::format("{} {two}", 1, fmt::arg("two", 2));
* Removed the write API in favor of the `format API
- <https://fmt.dev/dev/api.html#format-api>`_ with compile-time handling of
+ <https://fmt.dev/latest/api.html#format-api>`_ with compile-time handling of
format strings.
* Disallowed formatting of multibyte strings into a wide character target
diff --git a/Externals/fmt/README.rst b/Externals/fmt/README.rst
index 162382ceca..acddc70ef1 100755
--- a/Externals/fmt/README.rst
+++ b/Externals/fmt/README.rst
@@ -7,153 +7,174 @@
.. image:: https://ci.appveyor.com/api/projects/status/ehjkiefde6gucy1v
:target: https://ci.appveyor.com/project/vitaut/fmt
-.. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/libfmt.svg
- :alt: fmt is continuously fuzzed att oss-fuzz
- :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?colspec=ID%20Type%20Component%20Status%20Proj%20Reported%20Owner%20Summary&q=proj%3Dlibfmt&can=1
+.. image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/fmt.svg
+ :alt: fmt is continuously fuzzed at oss-fuzz
+ :target: https://bugs.chromium.org/p/oss-fuzz/issues/list?\
+ colspec=ID%20Type%20Component%20Status%20Proj%20Reported%20Owner%20\
+ Summary&q=proj%3Dfmt&can=1
.. image:: https://img.shields.io/badge/stackoverflow-fmt-blue.svg
:alt: Ask questions at StackOverflow with the tag fmt
- :target: http://stackoverflow.com/questions/tagged/fmt
+ :target: https://stackoverflow.com/questions/tagged/fmt
-**{fmt}** is an open-source formatting library for C++.
-It can be used as a safe and fast alternative to (s)printf and iostreams.
+**{fmt}** is an open-source formatting library providing a fast and safe
+alternative to C stdio and C++ iostreams.
-`Documentation <https://fmt.dev/latest/>`__
+If you like this project, please consider donating to BYSOL,
+an initiative to help victims of political repressions in Belarus:
+https://www.facebook.com/donate/759400044849707/108388587646909/.
-Q&A: ask questions on `StackOverflow with the tag fmt <http://stackoverflow.com/questions/tagged/fmt>`_.
+`Documentation <https://fmt.dev>`__
+
+Q&A: ask questions on `StackOverflow with the tag fmt
+<https://stackoverflow.com/questions/tagged/fmt>`_.
+
+Try {fmt} in `Compiler Explorer <https://godbolt.org/z/Eq5763>`_.
Features
--------
-* Replacement-based `format API <https://fmt.dev/dev/api.html>`_ with
- positional arguments for localization.
-* `Format string syntax <https://fmt.dev/dev/syntax.html>`_ similar to the one
- of `str.format <https://docs.python.org/3/library/stdtypes.html#str.format>`_
- in Python.
+* Simple `format API <https://fmt.dev/latest/api.html>`_ with positional arguments
+ for localization
+* Implementation of `C++20 std::format
+ <https://en.cppreference.com/w/cpp/utility/format>`__
+* `Format string syntax <https://fmt.dev/latest/syntax.html>`_ similar to Python's
+ `format <https://docs.python.org/3/library/stdtypes.html#str.format>`_
+* Fast IEEE 754 floating-point formatter with correct rounding, shortness and
+ round-trip guarantees
* Safe `printf implementation
- <https://fmt.dev/latest/api.html#printf-formatting>`_ including
- the POSIX extension for positional arguments.
-* Implementation of `C++20 std::format <https://fmt.dev/Text%20Formatting.html>`__.
-* Support for user-defined types.
+ <https://fmt.dev/latest/api.html#printf-formatting>`_ including the POSIX
+ extension for positional arguments
+* Extensibility: `support for user-defined types
+ <https://fmt.dev/latest/api.html#formatting-user-defined-types>`_
* High performance: faster than common standard library implementations of
- `printf <http://en.cppreference.com/w/cpp/io/c/fprintf>`_ and
- iostreams. See `Speed tests`_ and `Fast integer to string conversion in C++
- <http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_.
-* Small code size both in terms of source code (the minimum configuration
- consists of just three header files, ``core.h``, ``format.h`` and
- ``format-inl.h``) and compiled code. See `Compile time and code bloat`_.
-* Reliability: the library has an extensive set of `unit tests
- <https://github.com/fmtlib/fmt/tree/master/test>`_ and is continuously fuzzed.
+ ``(s)printf``, iostreams, ``to_string`` and ``to_chars``, see `Speed tests`_
+ and `Converting a hundred million integers to strings per second
+ <http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_
+* Small code size both in terms of source code with the minimum configuration
+ consisting of just three files, ``core.h``, ``format.h`` and ``format-inl.h``,
+ and compiled code; see `Compile time and code bloat`_
+* Reliability: the library has an extensive set of `tests
+ <https://github.com/fmtlib/fmt/tree/master/test>`_ and is `continuously fuzzed
+ <https://bugs.chromium.org/p/oss-fuzz/issues/list?colspec=ID%20Type%20
+ Component%20Status%20Proj%20Reported%20Owner%20Summary&q=proj%3Dfmt&can=1>`_
* Safety: the library is fully type safe, errors in format strings can be
reported at compile time, automatic memory management prevents buffer overflow
- errors.
+ errors
* Ease of use: small self-contained code base, no external dependencies,
permissive MIT `license
<https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_
* `Portability <https://fmt.dev/latest/index.html#portability>`_ with
- consistent output across platforms and support for older compilers.
-* Clean warning-free codebase even on high warning levels
- (``-Wall -Wextra -pedantic``).
-* Support for wide strings.
-* Optional header-only configuration enabled with the ``FMT_HEADER_ONLY`` macro.
+ consistent output across platforms and support for older compilers
+* Clean warning-free codebase even on high warning levels such as
+ ``-Wall -Wextra -pedantic``
+* Locale-independence by default
+* Optional header-only configuration enabled with the ``FMT_HEADER_ONLY`` macro
-See the `documentation <https://fmt.dev/latest/>`_ for more details.
+See the `documentation <https://fmt.dev>`_ for more details.
Examples
--------
-Print ``Hello, world!`` to ``stdout``:
+**Print to stdout** (`run <https://godbolt.org/z/Tevcjh>`_)
.. code:: c++
- fmt::print("Hello, {}!", "world"); // Python-like format string syntax
- fmt::printf("Hello, %s!", "world"); // printf format string syntax
+ #include <fmt/core.h>
+
+ int main() {
+ fmt::print("Hello, world!\n");
+ }
-Format a string and use positional arguments:
+**Format a string** (`run <https://godbolt.org/z/oK8h33>`_)
+
+.. code:: c++
+
+ std::string s = fmt::format("The answer is {}.", 42);
+ // s == "The answer is 42."
+
+**Format a string using positional arguments** (`run <https://godbolt.org/z/Yn7Txe>`_)
.. code:: c++
std::string s = fmt::format("I'd rather be {1} than {0}.", "right", "happy");
// s == "I'd rather be happy than right."
-Check a format string at compile time:
+**Print chrono durations** (`run <https://godbolt.org/z/K8s4Mc>`_)
.. code:: c++
- // test.cc
- #include <fmt/format.h>
- std::string s = format(FMT_STRING("{2}"), 42);
+ #include <fmt/chrono.h>
-.. code::
-
- $ c++ -Iinclude -std=c++14 test.cc
- ...
- test.cc:4:17: note: in instantiation of function template specialization 'fmt::v5::format<S, int>' requested here
- std::string s = format(FMT_STRING("{2}"), 42);
- ^
- include/fmt/core.h:778:19: note: non-constexpr function 'on_error' cannot be used in a constant expression
- ErrorHandler::on_error(message);
- ^
- include/fmt/format.h:2226:16: note: in call to '&checker.context_->on_error(&"argument index out of range"[0])'
- context_.on_error("argument index out of range");
- ^
-
-Use {fmt} as a safe portable replacement for ``itoa``
-(`godbolt <https://godbolt.org/g/NXmpU4>`_):
-
-.. code:: c++
-
- fmt::memory_buffer buf;
- format_to(buf, "{}", 42); // replaces itoa(42, buffer, 10)
- format_to(buf, "{:x}", 42); // replaces itoa(42, buffer, 16)
- // access the string with to_string(buf) or buf.data()
-
-Format objects of user-defined types via a simple `extension API
-<https://fmt.dev/latest/api.html#formatting-user-defined-types>`_:
-
-.. code:: c++
-
- #include "fmt/format.h"
-
- struct date {
- int year, month, day;
- };
-
- template <>
- struct fmt::formatter<date> {
- constexpr auto parse(format_parse_context& ctx) { return ctx.begin(); }
-
- template <typename FormatContext>
- auto format(const date& d, FormatContext& ctx) {
- return format_to(ctx.out(), "{}-{}-{}", d.year, d.month, d.day);
- }
- };
-
- std::string s = fmt::format("The date is {}", date{2012, 12, 9});
- // s == "The date is 2012-12-9"
-
-Create your own functions similar to `format
-<https://fmt.dev/latest/api.html#format>`_ and
-`print <https://fmt.dev/latest/api.html#print>`_
-which take arbitrary arguments (`godbolt <https://godbolt.org/g/MHjHVf>`_):
-
-.. code:: c++
-
- // Prints formatted error message.
- void vreport_error(const char* format, fmt::format_args args) {
- fmt::print("Error: ");
- fmt::vprint(format, args);
- }
- template <typename... Args>
- void report_error(const char* format, const Args & ... args) {
- vreport_error(format, fmt::make_format_args(args...));
+ int main() {
+ using namespace std::literals::chrono_literals;
+ fmt::print("Default format: {} {}\n", 42s, 100ms);
+ fmt::print("strftime-like format: {:%H:%M:%S}\n", 3h + 15min + 30s);
}
- report_error("file not found: {}", path);
+Output::
-Note that ``vreport_error`` is not parameterized on argument types which can
-improve compile times and reduce code size compared to a fully parameterized
-version.
+ Default format: 42s 100ms
+ strftime-like format: 03:15:30
+
+**Print a container** (`run <https://godbolt.org/z/MjsY7c>`_)
+
+.. code:: c++
+
+ #include <vector>
+ #include <fmt/ranges.h>
+
+ int main() {
+ std::vector<int> v = {1, 2, 3};
+ fmt::print("{}\n", v);
+ }
+
+Output::
+
+ {1, 2, 3}
+
+**Check a format string at compile time**
+
+.. code:: c++
+
+ std::string s = fmt::format(FMT_STRING("{:d}"), "don't panic");
+
+This gives a compile-time error because ``d`` is an invalid format specifier for
+a string.
+
+**Write a file from a single thread**
+
+.. code:: c++
+
+ #include <fmt/os.h>
+
+ int main() {
+ auto out = fmt::output_file("guide.txt");
+ out.print("Don't {}", "Panic");
+ }
+
+This can be `5 to 9 times faster than fprintf
+<http://www.zverovich.net/2020/08/04/optimal-file-buffer-size.html>`_.
+
+**Print with colors and text styles**
+
+.. code:: c++
+
+ #include <fmt/color.h>
+
+ int main() {
+ fmt::print(fg(fmt::color::crimson) | fmt::emphasis::bold,
+ "Hello, {}!\n", "world");
+ fmt::print(fg(fmt::color::floral_white) | bg(fmt::color::slate_gray) |
+ fmt::emphasis::underline, "Hello, {}!\n", "мир");
+ fmt::print(fg(fmt::color::steel_blue) | fmt::emphasis::italic,
+ "Hello, {}!\n", "世界");
+ }
+
+Output on a modern terminal:
+
+.. image:: https://user-images.githubusercontent.com/
+ 576385/88485597-d312f600-cf2b-11ea-9cbe-61f535a86e28.png
Benchmarks
----------
@@ -174,18 +195,20 @@ Folly Format folly::format 2.23
{fmt} is the fastest of the benchmarked methods, ~35% faster than ``printf``.
The above results were generated by building ``tinyformat_test.cpp`` on macOS
-10.14.6 with ``clang++ -O3 -DSPEED_TEST -DHAVE_FORMAT``, and taking the best of
-three runs. In the test, the format string ``"%0.10f:%04d:%+g:%s:%p:%c:%%\n"``
+10.14.6 with ``clang++ -O3 -DNDEBUG -DSPEED_TEST -DHAVE_FORMAT``, and taking the
+best of three runs. In the test, the format string ``"%0.10f:%04d:%+g:%s:%p:%c:%%\n"``
or equivalent is filled 2,000,000 times with output sent to ``/dev/null``; for
further details refer to the `source
<https://github.com/fmtlib/format-benchmark/blob/master/tinyformat_test.cpp>`_.
-{fmt} is 10x faster than ``std::ostringstream`` and ``sprintf`` on floating-point
-formatting (`dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_)
-and as fast as `double-conversion <https://github.com/google/double-conversion>`_:
+{fmt} is up to 20-30x faster than ``std::ostringstream`` and ``sprintf`` on
+floating-point formatting (`dtoa-benchmark <https://github.com/fmtlib/dtoa-benchmark>`_)
+and faster than `double-conversion <https://github.com/google/double-conversion>`_ and
+`ryu <https://github.com/ulfjack/ryu>`_:
-.. image:: https://user-images.githubusercontent.com/576385/69767160-cdaca400-112f-11ea-9fc5-347c9f83caad.png
- :target: https://fmt.dev/unknown_mac64_clang10.0.html
+.. image:: https://user-images.githubusercontent.com/576385/
+ 95684665-11719600-0ba8-11eb-8e5b-972ff4e49428.png
+ :target: https://fmt.dev/unknown_mac64_clang12.0.html
Compile time and code bloat
~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -264,36 +287,33 @@ or the bloat test::
Projects using this library
---------------------------
-* `0 A.D. <http://play0ad.com/>`_: A free, open-source, cross-platform real-time
- strategy game
+* `0 A.D. <https://play0ad.com/>`_: a free, open-source, cross-platform
+ real-time strategy game
* `AMPL/MP <https://github.com/ampl/mp>`_:
- An open-source library for mathematical programming
-
-* `AvioBook <https://www.aviobook.aero/en>`_: A comprehensive aircraft
+ an open-source library for mathematical programming
+
+* `Aseprite <https://github.com/aseprite/aseprite>`_:
+ animated sprite editor & pixel art tool
+
+* `AvioBook <https://www.aviobook.aero/en>`_: a comprehensive aircraft
operations suite
-* `Celestia <https://celestia.space/>`_: Real-time 3D visualization of space
+* `Blizzard Battle.net <https://battle.net/>`_: an online gaming platform
+
+* `Celestia <https://celestia.space/>`_: real-time 3D visualization of space
-* `Ceph <https://ceph.com/>`_: A scalable distributed storage system
+* `Ceph <https://ceph.com/>`_: a scalable distributed storage system
-* `ccache <https://ccache.dev/>`_: A compiler cache
+* `ccache <https://ccache.dev/>`_: a compiler cache
+
+* `ClickHouse <https://github.com/ClickHouse/ClickHouse>`_: analytical database
+ management system
* `CUAUV <http://cuauv.org/>`_: Cornell University's autonomous underwater
vehicle
-* `HarpyWar/pvpgn <https://github.com/pvpgn/pvpgn-server>`_:
- Player vs Player Gaming Network with tweaks
-
-* `KBEngine <http://kbengine.org/>`_: An open-source MMOG server engine
-
-* `Keypirinha <http://keypirinha.com/>`_: A semantic launcher for Windows
-
-* `Kodi <https://kodi.tv/>`_ (formerly xbmc): Home theater software
-
-* `Lifeline <https://github.com/peter-clark/lifeline>`_: A 2D game
-
-* `Drake <http://drake.mit.edu/>`_: A planning, control, and analysis toolbox
+* `Drake <https://drake.mit.edu/>`_: a planning, control, and analysis toolbox
for nonlinear dynamical systems (MIT)
* `Envoy <https://lyft.github.io/envoy/>`_: C++ L7 proxy and communication bus
@@ -301,49 +321,76 @@ Projects using this library
* `FiveM <https://fivem.net/>`_: a modification framework for GTA V
-* `MongoDB <https://mongodb.com/>`_: Distributed document database
+* `Folly <https://github.com/facebook/folly>`_: Facebook open-source library
-* `MongoDB Smasher <https://github.com/duckie/mongo_smasher>`_: A small tool to
+* `HarpyWar/pvpgn <https://github.com/pvpgn/pvpgn-server>`_:
+ Player vs Player Gaming Network with tweaks
+
+* `KBEngine <https://github.com/kbengine/kbengine>`_: an open-source MMOG server
+ engine
+
+* `Keypirinha <https://keypirinha.com/>`_: a semantic launcher for Windows
+
+* `Kodi <https://kodi.tv/>`_ (formerly xbmc): home theater software
+
+* `Knuth <https://kth.cash/>`_: high-performance Bitcoin full-node
+
+* `Microsoft Verona <https://github.com/microsoft/verona>`_:
+ research programming language for concurrent ownership
+
+* `MongoDB <https://mongodb.com/>`_: distributed document database
+
+* `MongoDB Smasher <https://github.com/duckie/mongo_smasher>`_: a small tool to
generate randomized datasets
-* `OpenSpace <http://openspaceproject.com/>`_: An open-source astrovisualization
- framework
+* `OpenSpace <https://openspaceproject.com/>`_: an open-source
+ astrovisualization framework
-* `PenUltima Online (POL) <http://www.polserver.com/>`_:
- An MMO server, compatible with most Ultima Online clients
+* `PenUltima Online (POL) <https://www.polserver.com/>`_:
+ an MMO server, compatible with most Ultima Online clients
-* `quasardb <https://www.quasardb.net/>`_: A distributed, high-performance,
+* `PyTorch <https://github.com/pytorch/pytorch>`_: an open-source machine
+ learning library
+
+* `quasardb <https://www.quasardb.net/>`_: a distributed, high-performance,
associative database
+
+* `Quill <https://github.com/odygrd/quill>`_: asynchronous low-latency logging library
-* `readpe <https://bitbucket.org/sys_dev/readpe>`_: Read Portable Executable
+* `QKW <https://github.com/ravijanjam/qkw>`_: generalizing aliasing to simplify
+ navigation, and executing complex multi-line terminal command sequences
-* `redis-cerberus <https://github.com/HunanTV/redis-cerberus>`_: A Redis cluster
+* `redis-cerberus <https://github.com/HunanTV/redis-cerberus>`_: a Redis cluster
proxy
-* `rpclib <http://rpclib.net/>`_: A modern C++ msgpack-RPC server and client
+* `redpanda <https://vectorized.io/redpanda>`_: a 10x faster Kafka® replacement
+ for mission critical systems written in C++
+
+* `rpclib <http://rpclib.net/>`_: a modern C++ msgpack-RPC server and client
library
-* `Saddy <https://github.com/mamontov-cpp/saddy-graphics-engine-2d>`_:
- Small crossplatform 2D graphic engine
+* `Salesforce Analytics Cloud
+ <https://www.salesforce.com/analytics-cloud/overview/>`_:
+ business intelligence software
-* `Salesforce Analytics Cloud <http://www.salesforce.com/analytics-cloud/overview/>`_:
- Business intelligence software
-
-* `Scylla <http://www.scylladb.com/>`_: A Cassandra-compatible NoSQL data store
+* `Scylla <https://www.scylladb.com/>`_: a Cassandra-compatible NoSQL data store
that can handle 1 million transactions per second on a single server
-* `Seastar <http://www.seastar-project.org/>`_: An advanced, open-source C++
+* `Seastar <http://www.seastar-project.org/>`_: an advanced, open-source C++
framework for high-performance server applications on modern hardware
-* `spdlog <https://github.com/gabime/spdlog>`_: Super fast C++ logging library
+* `spdlog <https://github.com/gabime/spdlog>`_: super fast C++ logging library
-* `Stellar <https://www.stellar.org/>`_: Financial platform
+* `Stellar <https://www.stellar.org/>`_: financial platform
-* `Touch Surgery <https://www.touchsurgery.com/>`_: Surgery simulator
+* `Touch Surgery <https://www.touchsurgery.com/>`_: surgery simulator
-* `TrinityCore <https://github.com/TrinityCore/TrinityCore>`_: Open-source
+* `TrinityCore <https://github.com/TrinityCore/TrinityCore>`_: open-source
MMORPG framework
+* `Windows Terminal <https://github.com/microsoft/terminal>`_: the new Windows
+ terminal
+
`More... <https://github.com/search?q=fmtlib&type=Code>`_
If you are aware of other projects using this library, please let me know
@@ -368,7 +415,7 @@ The good thing about ``printf`` is that it is pretty fast and readily available
being a part of the C standard library. The main drawback is that it
doesn't support user-defined types. ``printf`` also has safety issues although
they are somewhat mitigated with `__attribute__ ((format (printf, ...))
-<http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html>`_ in GCC.
+<https://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html>`_ in GCC.
There is a POSIX extension that adds positional arguments required for
`i18n <https://en.wikipedia.org/wiki/Internationalization_and_localization>`_
to ``printf`` but it is not a part of C99 and may not be available on some
@@ -400,15 +447,15 @@ Boost Format
This is a very powerful library which supports both ``printf``-like format
strings and positional arguments. Its main drawback is performance. According to
-various benchmarks it is much slower than other methods considered here. Boost
+various, benchmarks it is much slower than other methods considered here. Boost
Format also has excessive build times and severe code bloat issues (see
`Benchmarks`_).
FastFormat
~~~~~~~~~~
-This is an interesting library which is fast, safe and has positional
-arguments. However it has significant limitations, citing its author:
+This is an interesting library which is fast, safe and has positional arguments.
+However, it has significant limitations, citing its author:
Three features that have no hope of being accommodated within the
current design are:
@@ -417,8 +464,8 @@ arguments. However it has significant limitations, citing its author:
* Octal/hexadecimal encoding
* Runtime width/alignment specification
-It is also quite big and has a heavy dependency, STLSoft, which might be
-too restrictive for using it in some projects.
+It is also quite big and has a heavy dependency, STLSoft, which might be too
+restrictive for using it in some projects.
Boost Spirit.Karma
~~~~~~~~~~~~~~~~~~
@@ -426,32 +473,9 @@ Boost Spirit.Karma
This is not really a formatting library but I decided to include it here for
completeness. As iostreams, it suffers from the problem of mixing verbatim text
with arguments. The library is pretty fast, but slower on integer formatting
-than ``fmt::format_int`` on Karma's own benchmark,
-see `Fast integer to string conversion in C++
-<http://zverovich.net/2013/09/07/integer-to-string-conversion-in-cplusplus.html>`_.
-
-FAQ
----
-
-Q: how can I capture formatting arguments and format them later?
-
-A: use ``std::tuple``:
-
-.. code:: c++
-
- template <typename... Args>
- auto capture(const Args&... args) {
- return std::make_tuple(args...);
- }
-
- auto print_message = [](const auto&... args) {
- fmt::print(args...);
- };
-
- // Capture and store arguments:
- auto args = capture("{} {}", 42, "foo");
- // Do formatting:
- std::apply(print_message, args);
+than ``fmt::format_to`` with format string compilation on Karma's own benchmark,
+see `Converting a hundred million integers to strings per second
+<http://www.zverovich.net/2020/06/13/fast-int-to-string-revisited.html>`_.
License
-------
@@ -459,18 +483,19 @@ License
{fmt} is distributed under the MIT `license
<https://github.com/fmtlib/fmt/blob/master/LICENSE.rst>`_.
-The `Format String Syntax
-<https://fmt.dev/latest/syntax.html>`_
-section in the documentation is based on the one from Python `string module
-documentation <https://docs.python.org/3/library/string.html#module-string>`_
-adapted for the current library. For this reason the documentation is
-distributed under the Python Software Foundation license available in
-`doc/python-license.txt
-<https://raw.github.com/fmtlib/fmt/master/doc/python-license.txt>`_.
-It only applies if you distribute the documentation of fmt.
+Documentation License
+---------------------
-Acknowledgments
----------------
+The `Format String Syntax <https://fmt.dev/latest/syntax.html>`_
+section in the documentation is based on the one from Python `string module
+documentation <https://docs.python.org/3/library/string.html#module-string>`_.
+For this reason the documentation is distributed under the Python Software
+Foundation license available in `doc/python-license.txt
+<https://raw.github.com/fmtlib/fmt/master/doc/python-license.txt>`_.
+It only applies if you distribute the documentation of {fmt}.
+
+Maintainers
+-----------
The {fmt} library is maintained by Victor Zverovich (`vitaut
<https://github.com/vitaut>`_) and Jonathan Müller (`foonathan
@@ -479,23 +504,3 @@ See `Contributors <https://github.com/fmtlib/fmt/graphs/contributors>`_ and
`Releases <https://github.com/fmtlib/fmt/releases>`_ for some of the names.
Let us know if your contribution is not listed or mentioned incorrectly and
we'll make it right.
-
-The benchmark section of this readme file and the performance tests are taken
-from the excellent `tinyformat <https://github.com/c42f/tinyformat>`_ library
-written by Chris Foster. Boost Format library is acknowledged transitively
-since it had some influence on tinyformat.
-Some ideas used in the implementation are borrowed from `Loki
-<http://loki-lib.sourceforge.net/>`_ SafeFormat and `Diagnostic API
-<http://clang.llvm.org/doxygen/classclang_1_1Diagnostic.html>`_ in
-`Clang <http://clang.llvm.org/>`_.
-Format string syntax and the documentation are based on Python's `str.format
-<https://docs.python.org/3/library/stdtypes.html#str.format>`_.
-Thanks `Doug Turnbull <https://github.com/softwaredoug>`_ for his valuable
-comments and contribution to the design of the type-safe API and
-`Gregory Czajkowski <https://github.com/gcflymoto>`_ for implementing binary
-formatting. Thanks `Ruslan Baratov <https://github.com/ruslo>`_ for comprehensive
-`comparison of integer formatting algorithms <https://github.com/ruslo/int-dec-format-tests>`_
-and useful comments regarding performance, `Boris Kaul <https://github.com/localvoid>`_ for
-`C++ counting digits benchmark <https://github.com/localvoid/cxx-benchmark-count-digits>`_.
-Thanks to `CarterLi <https://github.com/CarterLi>`_ for contributing various
-improvements to the code.
diff --git a/Externals/fmt/include/fmt/chrono.h b/Externals/fmt/include/fmt/chrono.h
index ca4ed30ae6..1a3b8d5e5c 100755
--- a/Externals/fmt/include/fmt/chrono.h
+++ b/Externals/fmt/include/fmt/chrono.h
@@ -8,14 +8,14 @@
#ifndef FMT_CHRONO_H_
#define FMT_CHRONO_H_
-#include "format.h"
-#include "locale.h"
-
#include <chrono>
#include <ctime>
#include <locale>
#include <sstream>
+#include "format.h"
+#include "locale.h"
+
FMT_BEGIN_NAMESPACE
// Enable safe chrono durations, unless explicitly disabled.
@@ -48,7 +48,7 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
// From fits in To without any problem.
} else {
// From does not always fit in To, resort to a dynamic check.
- if (from < T::min() || from > T::max()) {
+ if (from < (T::min)() || from > (T::max)()) {
// outside range.
ec = 1;
return {};
@@ -72,43 +72,27 @@ FMT_CONSTEXPR To lossless_integral_conversion(const From from, int& ec) {
static_assert(F::is_integer, "From must be integral");
static_assert(T::is_integer, "To must be integral");
- if (F::is_signed && !T::is_signed) {
+ if (detail::const_check(F::is_signed && !T::is_signed)) {
// From may be negative, not allowed!
- if (fmt::internal::is_negative(from)) {
+ if (fmt::detail::is_negative(from)) {
ec = 1;
return {};
}
-
// From is positive. Can it always fit in To?
- if (F::digits <= T::digits) {
- // yes, From always fits in To.
- } else {
- // from may not fit in To, we have to do a dynamic check
- if (from > static_cast<From>(T::max())) {
- ec = 1;
- return {};
- }
+ if (F::digits > T::digits &&
+ from > static_cast<From>(detail::max_value<To>())) {
+ ec = 1;
+ return {};
}
}
- if (!F::is_signed && T::is_signed) {
- // can from be held in To?
- if (F::digits < T::digits) {
- // yes, From always fits in To.
- } else {
- // from may not fit in To, we have to do a dynamic check
- if (from > static_cast<From>(T::max())) {
- // outside range.
- ec = 1;
- return {};
- }
- }
+ if (!F::is_signed && T::is_signed && F::digits >= T::digits &&
+ from > static_cast<From>(detail::max_value<To>())) {
+ ec = 1;
+ return {};
}
-
- // reaching here means all is ok for lossless conversion.
- return static_cast<To>(from);
-
-} // function
+ return static_cast<To>(from); // Lossless conversion.
+}
template <typename To, typename From,
FMT_ENABLE_IF(std::is_same<From, To>::value)>
@@ -141,7 +125,7 @@ FMT_CONSTEXPR To safe_float_conversion(const From from, int& ec) {
// catch the only happy case
if (std::isfinite(from)) {
- if (from >= T::lowest() && from <= T::max()) {
+ if (from >= T::lowest() && from <= (T::max)()) {
return static_cast<To>(from);
}
// not within range.
@@ -190,17 +174,16 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
// safe conversion to IntermediateRep
IntermediateRep count =
lossless_integral_conversion<IntermediateRep>(from.count(), ec);
- if (ec) {
- return {};
- }
+ if (ec) return {};
// multiply with Factor::num without overflow or underflow
- if (Factor::num != 1) {
- const auto max1 = internal::max_value<IntermediateRep>() / Factor::num;
+ if (detail::const_check(Factor::num != 1)) {
+ const auto max1 = detail::max_value<IntermediateRep>() / Factor::num;
if (count > max1) {
ec = 1;
return {};
}
- const auto min1 = std::numeric_limits<IntermediateRep>::min() / Factor::num;
+ const auto min1 =
+ (std::numeric_limits<IntermediateRep>::min)() / Factor::num;
if (count < min1) {
ec = 1;
return {};
@@ -208,17 +191,9 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
count *= Factor::num;
}
- // this can't go wrong, right? den>0 is checked earlier.
- if (Factor::den != 1) {
- count /= Factor::den;
- }
- // convert to the to type, safely
- using ToRep = typename To::rep;
- const ToRep tocount = lossless_integral_conversion<ToRep>(count, ec);
- if (ec) {
- return {};
- }
- return To{tocount};
+ if (detail::const_check(Factor::den != 1)) count /= Factor::den;
+ auto tocount = lossless_integral_conversion<typename To::rep>(count, ec);
+ return ec ? To() : To(tocount);
}
/**
@@ -269,7 +244,7 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
// multiply with Factor::num without overflow or underflow
if (Factor::num != 1) {
- constexpr auto max1 = internal::max_value<IntermediateRep>() /
+ constexpr auto max1 = detail::max_value<IntermediateRep>() /
static_cast<IntermediateRep>(Factor::num);
if (count > max1) {
ec = 1;
@@ -306,12 +281,12 @@ To safe_duration_cast(std::chrono::duration<FromRep, FromPeriod> from,
// Usage: f FMT_NOMACRO()
#define FMT_NOMACRO
-namespace internal {
+namespace detail {
inline null<> localtime_r FMT_NOMACRO(...) { return null<>(); }
inline null<> localtime_s(...) { return null<>(); }
inline null<> gmtime_r(...) { return null<>(); }
inline null<> gmtime_s(...) { return null<>(); }
-} // namespace internal
+} // namespace detail
// Thread-safe replacement for std::localtime
inline std::tm localtime(std::time_t time) {
@@ -322,22 +297,22 @@ inline std::tm localtime(std::time_t time) {
dispatcher(std::time_t t) : time_(t) {}
bool run() {
- using namespace fmt::internal;
+ using namespace fmt::detail;
return handle(localtime_r(&time_, &tm_));
}
bool handle(std::tm* tm) { return tm != nullptr; }
- bool handle(internal::null<>) {
- using namespace fmt::internal;
+ bool handle(detail::null<>) {
+ using namespace fmt::detail;
return fallback(localtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; }
#if !FMT_MSC_VER
- bool fallback(internal::null<>) {
- using namespace fmt::internal;
+ bool fallback(detail::null<>) {
+ using namespace fmt::detail;
std::tm* tm = std::localtime(&time_);
if (tm) tm_ = *tm;
return tm != nullptr;
@@ -350,6 +325,11 @@ inline std::tm localtime(std::time_t time) {
return lt.tm_;
}
+inline std::tm localtime(
+ std::chrono::time_point<std::chrono::system_clock> time_point) {
+ return localtime(std::chrono::system_clock::to_time_t(time_point));
+}
+
// Thread-safe replacement for std::gmtime
inline std::tm gmtime(std::time_t time) {
struct dispatcher {
@@ -359,21 +339,21 @@ inline std::tm gmtime(std::time_t time) {
dispatcher(std::time_t t) : time_(t) {}
bool run() {
- using namespace fmt::internal;
+ using namespace fmt::detail;
return handle(gmtime_r(&time_, &tm_));
}
bool handle(std::tm* tm) { return tm != nullptr; }
- bool handle(internal::null<>) {
- using namespace fmt::internal;
+ bool handle(detail::null<>) {
+ using namespace fmt::detail;
return fallback(gmtime_s(&tm_, &time_));
}
bool fallback(int res) { return res == 0; }
#if !FMT_MSC_VER
- bool fallback(internal::null<>) {
+ bool fallback(detail::null<>) {
std::tm* tm = std::gmtime(&time_);
if (tm) tm_ = *tm;
return tm != nullptr;
@@ -386,17 +366,33 @@ inline std::tm gmtime(std::time_t time) {
return gt.tm_;
}
-namespace internal {
-inline std::size_t strftime(char* str, std::size_t count, const char* format,
- const std::tm* time) {
+inline std::tm gmtime(
+ std::chrono::time_point<std::chrono::system_clock> time_point) {
+ return gmtime(std::chrono::system_clock::to_time_t(time_point));
+}
+
+namespace detail {
+inline size_t strftime(char* str, size_t count, const char* format,
+ const std::tm* time) {
return std::strftime(str, count, format, time);
}
-inline std::size_t strftime(wchar_t* str, std::size_t count,
- const wchar_t* format, const std::tm* time) {
+inline size_t strftime(wchar_t* str, size_t count, const wchar_t* format,
+ const std::tm* time) {
return std::wcsftime(str, count, format, time);
}
-} // namespace internal
+} // namespace detail
+
+template <typename Char>
+struct formatter<std::chrono::time_point<std::chrono::system_clock>, Char>
+ : formatter<std::tm, Char> {
+ template <typename FormatContext>
+ auto format(std::chrono::time_point<std::chrono::system_clock> val,
+ FormatContext& ctx) -> decltype(ctx.out()) {
+ std::tm time = localtime(val);
+ return formatter<std::tm, Char>::format(time, ctx);
+ }
+};
template <typename Char> struct formatter<std::tm, Char> {
template <typename ParseContext>
@@ -405,7 +401,7 @@ template <typename Char> struct formatter<std::tm, Char> {
if (it != ctx.end() && *it == ':') ++it;
auto end = it;
while (end != ctx.end() && *end != '}') ++end;
- tm_format.reserve(internal::to_unsigned(end - it + 1));
+ tm_format.reserve(detail::to_unsigned(end - it + 1));
tm_format.append(it, end);
tm_format.push_back('\0');
return end;
@@ -414,11 +410,10 @@ template <typename Char> struct formatter<std::tm, Char> {
template <typename FormatContext>
auto format(const std::tm& tm, FormatContext& ctx) -> decltype(ctx.out()) {
basic_memory_buffer<Char> buf;
- std::size_t start = buf.size();
+ size_t start = buf.size();
for (;;) {
- std::size_t size = buf.capacity() - start;
- std::size_t count =
- internal::strftime(&buf[start], size, &tm_format[0], &tm);
+ size_t size = buf.capacity() - start;
+ size_t count = detail::strftime(&buf[start], size, &tm_format[0], &tm);
if (count != 0) {
buf.resize(start + count);
break;
@@ -430,7 +425,7 @@ template <typename Char> struct formatter<std::tm, Char> {
// https://github.com/fmtlib/fmt/issues/367
break;
}
- const std::size_t MIN_GROWTH = 10;
+ const size_t MIN_GROWTH = 10;
buf.reserve(buf.capacity() + (size > MIN_GROWTH ? size : MIN_GROWTH));
}
return std::copy(buf.begin(), buf.end(), ctx.out());
@@ -439,7 +434,7 @@ template <typename Char> struct formatter<std::tm, Char> {
basic_memory_buffer<Char> tm_format;
};
-namespace internal {
+namespace detail {
template <typename Period> FMT_CONSTEXPR const char* get_units() {
return nullptr;
}
@@ -495,12 +490,12 @@ FMT_CONSTEXPR const Char* parse_chrono_format(const Char* begin,
handler.on_text(ptr - 1, ptr);
break;
case 'n': {
- const char newline[] = "\n";
+ const Char newline[] = {'\n'};
handler.on_text(newline, newline + 1);
break;
}
case 't': {
- const char tab[] = "\t";
+ const Char tab[] = {'\t'};
handler.on_text(tab, tab + 1);
break;
}
@@ -759,18 +754,36 @@ inline std::chrono::duration<Rep, std::milli> get_milliseconds(
return std::chrono::duration<Rep, std::milli>(static_cast<Rep>(ms));
}
-template <typename Rep, typename OutputIt>
-OutputIt format_chrono_duration_value(OutputIt out, Rep val, int precision) {
- if (precision >= 0) return format_to(out, "{:.{}f}", val, precision);
- return format_to(out, std::is_floating_point<Rep>::value ? "{:g}" : "{}",
+template <typename Char, typename Rep, typename OutputIt>
+OutputIt format_duration_value(OutputIt out, Rep val, int precision) {
+ const Char pr_f[] = {'{', ':', '.', '{', '}', 'f', '}', 0};
+ if (precision >= 0) return format_to(out, pr_f, val, precision);
+ const Char fp_f[] = {'{', ':', 'g', '}', 0};
+ const Char format[] = {'{', '}', 0};
+ return format_to(out, std::is_floating_point<Rep>::value ? fp_f : format,
val);
}
+template <typename Char, typename OutputIt>
+OutputIt copy_unit(string_view unit, OutputIt out, Char) {
+ return std::copy(unit.begin(), unit.end(), out);
+}
-template <typename Period, typename OutputIt>
-static OutputIt format_chrono_duration_unit(OutputIt out) {
- if (const char* unit = get_units<Period>()) return format_to(out, "{}", unit);
- if (Period::den == 1) return format_to(out, "[{}]s", Period::num);
- return format_to(out, "[{}/{}]s", Period::num, Period::den);
+template <typename OutputIt>
+OutputIt copy_unit(string_view unit, OutputIt out, wchar_t) {
+ // This works when wchar_t is UTF-32 because units only contain characters
+ // that have the same representation in UTF-16 and UTF-32.
+ utf8_to_utf16 u(unit);
+ return std::copy(u.c_str(), u.c_str() + u.size(), out);
+}
+
+template <typename Char, typename Period, typename OutputIt>
+OutputIt format_duration_unit(OutputIt out) {
+ if (const char* unit = get_units<Period>())
+ return copy_unit(string_view(unit), out, Char());
+ const Char num_f[] = {'[', '{', '}', ']', 's', 0};
+ if (const_check(Period::den == 1)) return format_to(out, num_f, Period::num);
+ const Char num_def_f[] = {'[', '{', '}', '/', '{', '}', ']', 's', 0};
+ return format_to(out, num_def_f, Period::num, Period::den);
}
template <typename FormatContext, typename OutputIt, typename Rep,
@@ -862,22 +875,22 @@ struct chrono_formatter {
if (isnan(value)) return write_nan();
uint32_or_64_or_128_t<int> n =
to_unsigned(to_nonnegative_int(value, max_value<int>()));
- int num_digits = internal::count_digits(n);
+ int num_digits = detail::count_digits(n);
if (width > num_digits) out = std::fill_n(out, width - num_digits, '0');
- out = format_decimal<char_type>(out, n, num_digits);
+ out = format_decimal<char_type>(out, n, num_digits).end;
}
void write_nan() { std::copy_n("nan", 3, out); }
void write_pinf() { std::copy_n("inf", 3, out); }
void write_ninf() { std::copy_n("-inf", 4, out); }
- void format_localized(const tm& time, const char* format) {
+ void format_localized(const tm& time, char format, char modifier = 0) {
if (isnan(val)) return write_nan();
auto locale = context.locale().template get<std::locale>();
auto& facet = std::use_facet<std::time_put<char_type>>(locale);
std::basic_ostringstream<char_type> os;
os.imbue(locale);
- facet.put(os, os, ' ', &time, format, format + std::strlen(format));
+ facet.put(os, os, ' ', &time, format, modifier);
auto str = os.str();
std::copy(str.begin(), str.end(), out);
}
@@ -907,7 +920,7 @@ struct chrono_formatter {
if (ns == numeric_system::standard) return write(hour(), 2);
auto time = tm();
time.tm_hour = to_nonnegative_int(hour(), 24);
- format_localized(time, "%OH");
+ format_localized(time, 'H', 'O');
}
void on_12_hour(numeric_system ns) {
@@ -916,7 +929,7 @@ struct chrono_formatter {
if (ns == numeric_system::standard) return write(hour12(), 2);
auto time = tm();
time.tm_hour = to_nonnegative_int(hour12(), 12);
- format_localized(time, "%OI");
+ format_localized(time, 'I', 'O');
}
void on_minute(numeric_system ns) {
@@ -925,7 +938,7 @@ struct chrono_formatter {
if (ns == numeric_system::standard) return write(minute(), 2);
auto time = tm();
time.tm_min = to_nonnegative_int(minute(), 60);
- format_localized(time, "%OM");
+ format_localized(time, 'M', 'O');
}
void on_second(numeric_system ns) {
@@ -950,13 +963,12 @@ struct chrono_formatter {
}
auto time = tm();
time.tm_sec = to_nonnegative_int(second(), 60);
- format_localized(time, "%OS");
+ format_localized(time, 'S', 'O');
}
void on_12_hour_time() {
if (handle_nan_inf()) return;
-
- format_localized(time(), "%r");
+ format_localized(time(), 'r');
}
void on_24_hour_time() {
@@ -980,25 +992,27 @@ struct chrono_formatter {
void on_am_pm() {
if (handle_nan_inf()) return;
- format_localized(time(), "%p");
+ format_localized(time(), 'p');
}
void on_duration_value() {
if (handle_nan_inf()) return;
write_sign();
- out = format_chrono_duration_value(out, val, precision);
+ out = format_duration_value<char_type>(out, val, precision);
}
- void on_duration_unit() { out = format_chrono_duration_unit<Period>(out); }
+ void on_duration_unit() {
+ out = format_duration_unit<char_type, Period>(out);
+ }
};
-} // namespace internal
+} // namespace detail
template <typename Rep, typename Period, typename Char>
struct formatter<std::chrono::duration<Rep, Period>, Char> {
private:
basic_format_specs<Char> specs;
int precision;
- using arg_ref_type = internal::arg_ref<Char>;
+ using arg_ref_type = detail::arg_ref<Char>;
arg_ref_type width_ref;
arg_ref_type precision_ref;
mutable basic_string_view<Char> format_str;
@@ -1019,12 +1033,12 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
return arg_ref_type(arg_id);
}
- FMT_CONSTEXPR arg_ref_type make_arg_ref(internal::auto_id) {
+ FMT_CONSTEXPR arg_ref_type make_arg_ref(detail::auto_id) {
return arg_ref_type(context.next_arg_id());
}
void on_error(const char* msg) { FMT_THROW(format_error(msg)); }
- void on_fill(Char fill) { f.specs.fill[0] = fill; }
+ void on_fill(basic_string_view<Char> fill) { f.specs.fill = fill; }
void on_align(align_t align) { f.specs.align = align; }
void on_width(int width) { f.specs.width = width; }
void on_precision(int _precision) { f.precision = _precision; }
@@ -1049,17 +1063,17 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
auto begin = ctx.begin(), end = ctx.end();
if (begin == end || *begin == '}') return {begin, begin};
spec_handler handler{*this, ctx, format_str};
- begin = internal::parse_align(begin, end, handler);
+ begin = detail::parse_align(begin, end, handler);
if (begin == end) return {begin, begin};
- begin = internal::parse_width(begin, end, handler);
+ begin = detail::parse_width(begin, end, handler);
if (begin == end) return {begin, begin};
if (*begin == '.') {
if (std::is_floating_point<Rep>::value)
- begin = internal::parse_precision(begin, end, handler);
+ begin = detail::parse_precision(begin, end, handler);
else
handler.on_error("precision not allowed for this argument type");
}
- end = parse_chrono_format(begin, end, internal::chrono_format_checker());
+ end = parse_chrono_format(begin, end, detail::chrono_format_checker());
return {begin, end};
}
@@ -1070,7 +1084,7 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
-> decltype(ctx.begin()) {
auto range = do_parse(ctx);
format_str = basic_string_view<Char>(
- &*range.begin, internal::to_unsigned(range.end - range.begin));
+ &*range.begin, detail::to_unsigned(range.end - range.begin));
return range.end;
}
@@ -1081,23 +1095,21 @@ struct formatter<std::chrono::duration<Rep, Period>, Char> {
// is not specified.
basic_memory_buffer<Char> buf;
auto out = std::back_inserter(buf);
- using range = internal::output_range<decltype(ctx.out()), Char>;
- internal::basic_writer<range> w(range(ctx.out()));
- internal::handle_dynamic_spec<internal::width_checker>(specs.width,
- width_ref, ctx);
- internal::handle_dynamic_spec<internal::precision_checker>(
- precision, precision_ref, ctx);
+ detail::handle_dynamic_spec<detail::width_checker>(specs.width, width_ref,
+ ctx);
+ detail::handle_dynamic_spec<detail::precision_checker>(precision,
+ precision_ref, ctx);
if (begin == end || *begin == '}') {
- out = internal::format_chrono_duration_value(out, d.count(), precision);
- internal::format_chrono_duration_unit<Period>(out);
+ out = detail::format_duration_value<Char>(out, d.count(), precision);
+ detail::format_duration_unit<Char, Period>(out);
} else {
- internal::chrono_formatter<FormatContext, decltype(out), Rep, Period> f(
+ detail::chrono_formatter<FormatContext, decltype(out), Rep, Period> f(
ctx, out, d);
f.precision = precision;
parse_chrono_format(begin, end, f);
}
- w.write(buf.data(), buf.size(), specs);
- return w.out();
+ return detail::write(
+ ctx.out(), basic_string_view<Char>(buf.data(), buf.size()), specs);
}
};
diff --git a/Externals/fmt/include/fmt/color.h b/Externals/fmt/include/fmt/color.h
index 362a95e142..7891058950 100755
--- a/Externals/fmt/include/fmt/color.h
+++ b/Externals/fmt/include/fmt/color.h
@@ -198,7 +198,7 @@ struct rgb {
uint8_t b;
};
-namespace internal {
+namespace detail {
// color is a struct of either a rgb color or a terminal color.
struct color_type {
@@ -221,7 +221,7 @@ struct color_type {
uint32_t rgb_color;
} value;
};
-} // namespace internal
+} // namespace detail
// Experimental text formatting support.
class text_style {
@@ -298,11 +298,11 @@ class text_style {
FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
return static_cast<uint8_t>(ems) != 0;
}
- FMT_CONSTEXPR internal::color_type get_foreground() const FMT_NOEXCEPT {
+ FMT_CONSTEXPR detail::color_type get_foreground() const FMT_NOEXCEPT {
FMT_ASSERT(has_foreground(), "no foreground specified for this style");
return foreground_color;
}
- FMT_CONSTEXPR internal::color_type get_background() const FMT_NOEXCEPT {
+ FMT_CONSTEXPR detail::color_type get_background() const FMT_NOEXCEPT {
FMT_ASSERT(has_background(), "no background specified for this style");
return background_color;
}
@@ -313,7 +313,7 @@ class text_style {
private:
FMT_CONSTEXPR text_style(bool is_foreground,
- internal::color_type text_color) FMT_NOEXCEPT
+ detail::color_type text_color) FMT_NOEXCEPT
: set_foreground_color(),
set_background_color(),
ems() {
@@ -326,23 +326,23 @@ class text_style {
}
}
- friend FMT_CONSTEXPR_DECL text_style fg(internal::color_type foreground)
+ friend FMT_CONSTEXPR_DECL text_style fg(detail::color_type foreground)
FMT_NOEXCEPT;
- friend FMT_CONSTEXPR_DECL text_style bg(internal::color_type background)
+ friend FMT_CONSTEXPR_DECL text_style bg(detail::color_type background)
FMT_NOEXCEPT;
- internal::color_type foreground_color;
- internal::color_type background_color;
+ detail::color_type foreground_color;
+ detail::color_type background_color;
bool set_foreground_color;
bool set_background_color;
emphasis ems;
};
-FMT_CONSTEXPR text_style fg(internal::color_type foreground) FMT_NOEXCEPT {
+FMT_CONSTEXPR text_style fg(detail::color_type foreground) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/true, foreground);
}
-FMT_CONSTEXPR text_style bg(internal::color_type background) FMT_NOEXCEPT {
+FMT_CONSTEXPR text_style bg(detail::color_type background) FMT_NOEXCEPT {
return text_style(/*is_foreground=*/false, background);
}
@@ -350,21 +350,21 @@ FMT_CONSTEXPR text_style operator|(emphasis lhs, emphasis rhs) FMT_NOEXCEPT {
return text_style(lhs) | rhs;
}
-namespace internal {
+namespace detail {
template <typename Char> struct ansi_color_escape {
- FMT_CONSTEXPR ansi_color_escape(internal::color_type text_color,
+ FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
const char* esc) FMT_NOEXCEPT {
// If we have a terminal color, we need to output another escape code
// sequence.
if (!text_color.is_rgb) {
- bool is_background = esc == internal::data::background_color;
+ bool is_background = esc == detail::data::background_color;
uint32_t value = text_color.value.term_color;
// Background ASCII codes are the same as the foreground ones but with
// 10 more.
if (is_background) value += 10u;
- std::size_t index = 0;
+ size_t index = 0;
buffer[index++] = static_cast<Char>('\x1b');
buffer[index++] = static_cast<Char>('[');
@@ -398,7 +398,7 @@ template <typename Char> struct ansi_color_escape {
if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
em_codes[3] = 9;
- std::size_t index = 0;
+ size_t index = 0;
for (int i = 0; i < 4; ++i) {
if (!em_codes[i]) continue;
buffer[index++] = static_cast<Char>('\x1b');
@@ -412,7 +412,7 @@ template <typename Char> struct ansi_color_escape {
FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; }
FMT_CONSTEXPR const Char* end() const FMT_NOEXCEPT {
- return buffer + std::strlen(buffer);
+ return buffer + std::char_traits<Char>::length(buffer);
}
private:
@@ -429,14 +429,14 @@ template <typename Char> struct ansi_color_escape {
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
- internal::color_type foreground) FMT_NOEXCEPT {
- return ansi_color_escape<Char>(foreground, internal::data::foreground_color);
+ detail::color_type foreground) FMT_NOEXCEPT {
+ return ansi_color_escape<Char>(foreground, detail::data::foreground_color);
}
template <typename Char>
FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
- internal::color_type background) FMT_NOEXCEPT {
- return ansi_color_escape<Char>(background, internal::data::background_color);
+ detail::color_type background) FMT_NOEXCEPT {
+ return ansi_color_escape<Char>(background, detail::data::background_color);
}
template <typename Char>
@@ -455,73 +455,71 @@ inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT {
}
template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT {
- fputs(internal::data::reset_color, stream);
+ fputs(detail::data::reset_color, stream);
}
template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT {
- fputs(internal::data::wreset_color, stream);
+ fputs(detail::data::wreset_color, stream);
}
template <typename Char>
-inline void reset_color(basic_memory_buffer<Char>& buffer) FMT_NOEXCEPT {
+inline void reset_color(buffer<Char>& buffer) FMT_NOEXCEPT {
const char* begin = data::reset_color;
const char* end = begin + sizeof(data::reset_color) - 1;
buffer.append(begin, end);
}
template <typename Char>
-void vformat_to(basic_memory_buffer<Char>& buf, const text_style& ts,
+void vformat_to(buffer<Char>& buf, const text_style& ts,
basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
bool has_style = false;
if (ts.has_emphasis()) {
has_style = true;
- auto emphasis = internal::make_emphasis<Char>(ts.get_emphasis());
+ auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
buf.append(emphasis.begin(), emphasis.end());
}
if (ts.has_foreground()) {
has_style = true;
- auto foreground =
- internal::make_foreground_color<Char>(ts.get_foreground());
+ auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
buf.append(foreground.begin(), foreground.end());
}
if (ts.has_background()) {
has_style = true;
- auto background =
- internal::make_background_color<Char>(ts.get_background());
+ auto background = detail::make_background_color<Char>(ts.get_background());
buf.append(background.begin(), background.end());
}
- vformat_to(buf, format_str, args);
- if (has_style) {
- internal::reset_color<Char>(buf);
- }
+ detail::vformat_to(buf, format_str, args);
+ if (has_style) detail::reset_color<Char>(buf);
}
-} // namespace internal
+} // namespace detail
template <typename S, typename Char = char_t<S>>
void vprint(std::FILE* f, const text_style& ts, const S& format,
- basic_format_args<buffer_context<Char>> args) {
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
- internal::vformat_to(buf, ts, to_string_view(format), args);
+ detail::vformat_to(buf, ts, to_string_view(format), args);
buf.push_back(Char(0));
- internal::fputs(buf.data(), f);
+ detail::fputs(buf.data(), f);
}
/**
+ \rst
Formats a string and prints it to the specified file stream using ANSI
escape sequences to specify text formatting.
- Example:
+
+ **Example**::
+
fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
"Elapsed time: {0:.2f} seconds", 1.23);
+ \endrst
*/
template <typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
+ FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(std::FILE* f, const text_style& ts, const S& format_str,
const Args&... args) {
- internal::check_format_string<Args...>(format_str);
- using context = buffer_context<char_t<S>>;
- format_arg_store<context, Args...> as{args...};
- vprint(f, ts, format_str, basic_format_args<context>(as));
+ vprint(f, ts, format_str,
+ fmt::make_args_checked<Args...>(format_str, args...));
}
/**
@@ -532,7 +530,7 @@ void print(std::FILE* f, const text_style& ts, const S& format_str,
"Elapsed time: {0:.2f} seconds", 1.23);
*/
template <typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
+ FMT_ENABLE_IF(detail::is_string<S>::value)>
void print(const text_style& ts, const S& format_str, const Args&... args) {
return print(stdout, ts, format_str, args...);
}
@@ -540,9 +538,9 @@ void print(const text_style& ts, const S& format_str, const Args&... args) {
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const text_style& ts, const S& format_str,
- basic_format_args<buffer_context<Char>> args) {
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buf;
- internal::vformat_to(buf, ts, to_string_view(format_str), args);
+ detail::vformat_to(buf, ts, to_string_view(format_str), args);
return fmt::to_string(buf);
}
@@ -562,7 +560,41 @@ template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
const Args&... args) {
return vformat(ts, to_string_view(format_str),
- {internal::make_args_checked<Args...>(format_str, args...)});
+ fmt::make_args_checked<Args...>(format_str, args...));
+}
+
+/**
+ Formats a string with the given text_style and writes the output to ``out``.
+ */
+template <typename OutputIt, typename Char,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
+OutputIt vformat_to(
+ OutputIt out, const text_style& ts, basic_string_view<Char> format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out));
+ detail::vformat_to(buf, ts, format_str, args);
+ return detail::get_iterator(buf);
+}
+
+/**
+ \rst
+ Formats arguments with the given text_style, writes the result to the output
+ iterator ``out`` and returns the iterator past the end of the output range.
+
+ **Example**::
+
+ std::vector<char> out;
+ fmt::format_to(std::back_inserter(out),
+ fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
+ \endrst
+*/
+template <typename OutputIt, typename S, typename... Args,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char_t<S>>::value&&
+ detail::is_string<S>::value)>
+inline OutputIt format_to(OutputIt out, const text_style& ts,
+ const S& format_str, Args&&... args) {
+ return vformat_to(out, ts, to_string_view(format_str),
+ fmt::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/compile.h b/Externals/fmt/include/fmt/compile.h
index 5829f623f1..7db610d90f 100644
--- a/Externals/fmt/include/fmt/compile.h
+++ b/Externals/fmt/include/fmt/compile.h
@@ -9,10 +9,37 @@
#define FMT_COMPILE_H_
#include <vector>
+
#include "format.h"
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
+
+// A compile-time string which is compiled into fast formatting code.
+class compiled_string {};
+
+template <typename S>
+struct is_compiled_string : std::is_base_of<compiled_string, S> {};
+
+/**
+ \rst
+ Converts a string literal *s* into a format string that will be parsed at
+ compile time and converted into efficient formatting code. Requires C++17
+ ``constexpr if`` compiler support.
+
+ **Example**::
+
+ // Converts 42 into std::string using the most efficient method and no
+ // runtime format string processing.
+ std::string s = fmt::format(FMT_COMPILE("{}"), 42);
+ \endrst
+ */
+#define FMT_COMPILE(s) FMT_STRING_IMPL(s, fmt::detail::compiled_string)
+
+template <typename T, typename... Tail>
+const T& first(const T& value, const Tail&...) {
+ return value;
+}
// Part of a compiled format string. It can be either literal text or a
// replacement field.
@@ -61,13 +88,15 @@ template <typename Char> struct part_counter {
if (begin != end) ++num_parts;
}
- FMT_CONSTEXPR void on_arg_id() { ++num_parts; }
- FMT_CONSTEXPR void on_arg_id(int) { ++num_parts; }
- FMT_CONSTEXPR void on_arg_id(basic_string_view<Char>) { ++num_parts; }
+ FMT_CONSTEXPR int on_arg_id() { return ++num_parts, 0; }
+ FMT_CONSTEXPR int on_arg_id(int) { return ++num_parts, 0; }
+ FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) {
+ return ++num_parts, 0;
+ }
- FMT_CONSTEXPR void on_replacement_field(const Char*) {}
+ FMT_CONSTEXPR void on_replacement_field(int, const Char*) {}
- FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
+ FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
// Find the matching brace.
unsigned brace_counter = 0;
@@ -115,25 +144,28 @@ class format_string_compiler : public error_handler {
handler_(part::make_text({begin, to_unsigned(end - begin)}));
}
- FMT_CONSTEXPR void on_arg_id() {
+ FMT_CONSTEXPR int on_arg_id() {
part_ = part::make_arg_index(parse_context_.next_arg_id());
+ return 0;
}
- FMT_CONSTEXPR void on_arg_id(int id) {
+ FMT_CONSTEXPR int on_arg_id(int id) {
parse_context_.check_arg_id(id);
part_ = part::make_arg_index(id);
+ return 0;
}
- FMT_CONSTEXPR void on_arg_id(basic_string_view<Char> id) {
+ FMT_CONSTEXPR int on_arg_id(basic_string_view<Char> id) {
part_ = part::make_arg_name(id);
+ return 0;
}
- FMT_CONSTEXPR void on_replacement_field(const Char* ptr) {
+ FMT_CONSTEXPR void on_replacement_field(int, const Char* ptr) {
part_.arg_id_end = ptr;
handler_(part_);
}
- FMT_CONSTEXPR const Char* on_format_specs(const Char* begin,
+ FMT_CONSTEXPR const Char* on_format_specs(int, const Char* begin,
const Char* end) {
auto repl = typename part::replacement();
dynamic_specs_handler<basic_format_parse_context<Char>> handler(
@@ -159,23 +191,24 @@ FMT_CONSTEXPR void compile_format_string(basic_string_view<Char> format_str,
format_string_compiler<Char, PartHandler>(format_str, handler));
}
-template <typename Range, typename Context, typename Id>
+template <typename OutputIt, typename Context, typename Id>
void format_arg(
- basic_format_parse_context<typename Range::value_type>& parse_ctx,
+ basic_format_parse_context<typename Context::char_type>& parse_ctx,
Context& ctx, Id arg_id) {
- ctx.advance_to(
- visit_format_arg(arg_formatter<Range>(ctx, &parse_ctx), ctx.arg(arg_id)));
+ ctx.advance_to(visit_format_arg(
+ arg_formatter<OutputIt, typename Context::char_type>(ctx, &parse_ctx),
+ ctx.arg(arg_id)));
}
// vformat_to is defined in a subnamespace to prevent ADL.
namespace cf {
-template <typename Context, typename Range, typename CompiledFormat>
-auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
- -> typename Context::iterator {
+template <typename Context, typename OutputIt, typename CompiledFormat>
+auto vformat_to(OutputIt out, CompiledFormat& cf,
+ basic_format_args<Context> args) -> typename Context::iterator {
using char_type = typename Context::char_type;
basic_format_parse_context<char_type> parse_ctx(
to_string_view(cf.format_str_));
- Context ctx(out.begin(), args);
+ Context ctx(out, args);
const auto& parts = cf.parts();
for (auto part_it = std::begin(parts); part_it != std::end(parts);
@@ -196,12 +229,12 @@ auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
case format_part_t::kind::arg_index:
advance_to(parse_ctx, part.arg_id_end);
- internal::format_arg<Range>(parse_ctx, ctx, value.arg_index);
+ detail::format_arg<OutputIt>(parse_ctx, ctx, value.arg_index);
break;
case format_part_t::kind::arg_name:
advance_to(parse_ctx, part.arg_id_end);
- internal::format_arg<Range>(parse_ctx, ctx, value.str);
+ detail::format_arg<OutputIt>(parse_ctx, ctx, value.str);
break;
case format_part_t::kind::replacement: {
@@ -225,7 +258,9 @@ auto vformat_to(Range out, CompiledFormat& cf, basic_format_args<Context> args)
advance_to(parse_ctx, part.arg_id_end);
ctx.advance_to(
- visit_format_arg(arg_formatter<Range>(ctx, nullptr, &specs), arg));
+ visit_format_arg(arg_formatter<OutputIt, typename Context::char_type>(
+ ctx, nullptr, &specs),
+ arg));
break;
}
}
@@ -239,7 +274,7 @@ struct basic_compiled_format {};
template <typename S, typename = void>
struct compiled_format_base : basic_compiled_format {
using char_type = char_t<S>;
- using parts_container = std::vector<internal::format_part<char_type>>;
+ using parts_container = std::vector<detail::format_part<char_type>>;
parts_container compiled_parts;
@@ -304,7 +339,7 @@ struct compiled_format_base<S, enable_if_t<is_compile_string<S>::value>>
const parts_container& parts() const {
static FMT_CONSTEXPR_DECL const auto compiled_parts =
compile_to_parts<char_type, num_format_parts>(
- internal::to_string_view(S()));
+ detail::to_string_view(S()));
return compiled_parts.data;
}
};
@@ -317,8 +352,8 @@ class compiled_format : private compiled_format_base<S> {
private:
basic_string_view<char_type> format_str_;
- template <typename Context, typename Range, typename CompiledFormat>
- friend auto cf::vformat_to(Range out, CompiledFormat& cf,
+ template <typename Context, typename OutputIt, typename CompiledFormat>
+ friend auto cf::vformat_to(OutputIt out, CompiledFormat& cf,
basic_format_args<Context> args) ->
typename Context::iterator;
@@ -333,7 +368,8 @@ template <typename... Args> struct type_list {};
// Returns a reference to the argument at index N from [first, rest...].
template <int N, typename T, typename... Args>
-constexpr const auto& get(const T& first, const Args&... rest) {
+constexpr const auto& get([[maybe_unused]] const T& first,
+ [[maybe_unused]] const Args&... rest) {
static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
if constexpr (N == 0)
return first;
@@ -350,49 +386,39 @@ template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
template <int N, typename T>
using get_type = typename get_type_impl<N, T>::type;
+template <typename T> struct is_compiled_format : std::false_type {};
+
template <typename Char> struct text {
basic_string_view<Char> data;
using char_type = Char;
template <typename OutputIt, typename... Args>
OutputIt format(OutputIt out, const Args&...) const {
- // TODO: reserve
- return copy_str<Char>(data.begin(), data.end(), out);
+ return write<Char>(out, data);
}
};
+template <typename Char>
+struct is_compiled_format<text<Char>> : std::true_type {};
+
template <typename Char>
constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
size_t size) {
return {{&s[pos], size}};
}
-template <typename Char, typename OutputIt, typename T,
- std::enable_if_t<std::is_integral_v<T>, int> = 0>
-OutputIt format_default(OutputIt out, T value) {
- // TODO: reserve
- format_int fi(value);
- return std::copy(fi.data(), fi.data() + fi.size(), out);
-}
+template <typename Char> struct code_unit {
+ Char value;
+ using char_type = Char;
-template <typename Char, typename OutputIt>
-OutputIt format_default(OutputIt out, double value) {
- writer w(out);
- w.write(value);
- return w.out();
-}
+ template <typename OutputIt, typename... Args>
+ OutputIt format(OutputIt out, const Args&...) const {
+ return write<Char>(out, value);
+ }
+};
-template <typename Char, typename OutputIt>
-OutputIt format_default(OutputIt out, Char value) {
- *out++ = value;
- return out;
-}
-
-template <typename Char, typename OutputIt>
-OutputIt format_default(OutputIt out, const Char* value) {
- auto length = std::char_traits<Char>::length(value);
- return copy_str<Char>(value, value + length, out);
-}
+template <typename Char>
+struct is_compiled_format<code_unit<Char>> : std::true_type {};
// A replacement field that refers to argument N.
template <typename Char, typename T, int N> struct field {
@@ -402,10 +428,32 @@ template <typename Char, typename T, int N> struct field {
OutputIt format(OutputIt out, const Args&... args) const {
// This ensures that the argument type is convertile to `const T&`.
const T& arg = get<N>(args...);
- return format_default<Char>(out, arg);
+ return write<Char>(out, arg);
}
};
+template <typename Char, typename T, int N>
+struct is_compiled_format<field<Char, T, N>> : std::true_type {};
+
+// A replacement field that refers to argument N and has format specifiers.
+template <typename Char, typename T, int N> struct spec_field {
+ using char_type = Char;
+ mutable formatter<T, Char> fmt;
+
+ template <typename OutputIt, typename... Args>
+ OutputIt format(OutputIt out, const Args&... args) const {
+ // This ensures that the argument type is convertile to `const T&`.
+ const T& arg = get<N>(args...);
+ const auto& vargs =
+ make_format_args<basic_format_context<OutputIt, Char>>(args...);
+ basic_format_context<OutputIt, Char> ctx(out, vargs);
+ return fmt.format(arg, ctx);
+ }
+};
+
+template <typename Char, typename T, int N>
+struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
+
template <typename L, typename R> struct concat {
L lhs;
R rhs;
@@ -418,6 +466,9 @@ template <typename L, typename R> struct concat {
}
};
+template <typename L, typename R>
+struct is_compiled_format<concat<L, R>> : std::true_type {};
+
template <typename L, typename R>
constexpr concat<L, R> make_concat(L lhs, R rhs) {
return {lhs, rhs};
@@ -438,7 +489,8 @@ constexpr auto compile_format_string(S format_str);
template <typename Args, size_t POS, int ID, typename T, typename S>
constexpr auto parse_tail(T head, S format_str) {
- if constexpr (POS != to_string_view(format_str).size()) {
+ if constexpr (POS !=
+ basic_string_view<typename S::char_type>(format_str).size()) {
constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
unknown_format>())
@@ -450,6 +502,22 @@ constexpr auto parse_tail(T head, S format_str) {
}
}
+template <typename T, typename Char> struct parse_specs_result {
+ formatter<T, Char> fmt;
+ size_t end;
+ int next_arg_id;
+};
+
+template <typename T, typename Char>
+constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
+ size_t pos, int arg_id) {
+ str.remove_prefix(pos);
+ auto ctx = basic_format_parse_context<Char>(str, {}, arg_id + 1);
+ auto f = formatter<T, Char>();
+ auto end = f.parse(ctx);
+ return {f, pos + (end - str.data()) + 1, ctx.next_arg_id()};
+}
+
// Compiles a non-empty format string and returns the compiled representation
// or unknown_format() on unrecognized input.
template <typename Args, size_t POS, int ID, typename S>
@@ -463,12 +531,13 @@ constexpr auto compile_format_string(S format_str) {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else if constexpr (str[POS + 1] == '}') {
using type = get_type<ID, Args>;
- if constexpr (std::is_same<type, int>::value) {
- return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
- format_str);
- } else {
- return unknown_format();
- }
+ return parse_tail<Args, POS + 2, ID + 1>(field<char_type, type, ID>(),
+ format_str);
+ } else if constexpr (str[POS + 1] == ':') {
+ using type = get_type<ID, Args>;
+ constexpr auto result = parse_specs<type>(str, POS + 2, ID);
+ return parse_tail<Args, result.end, result.next_arg_id>(
+ spec_field<char_type, type, ID>{result.fmt}, format_str);
} else {
return unknown_format();
}
@@ -478,106 +547,152 @@ constexpr auto compile_format_string(S format_str) {
return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
} else {
constexpr auto end = parse_text(str, POS + 1);
- return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
- format_str);
+ if constexpr (end - POS > 1) {
+ return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
+ format_str);
+ } else {
+ return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
+ format_str);
+ }
}
}
-#endif // __cpp_if_constexpr
-} // namespace internal
-#if FMT_USE_CONSTEXPR
-# ifdef __cpp_if_constexpr
template <typename... Args, typename S,
- FMT_ENABLE_IF(is_compile_string<S>::value)>
+ FMT_ENABLE_IF(is_compile_string<S>::value ||
+ detail::is_compiled_string<S>::value)>
constexpr auto compile(S format_str) {
constexpr basic_string_view<typename S::char_type> str = format_str;
if constexpr (str.size() == 0) {
- return internal::make_text(str, 0, 0);
+ return detail::make_text(str, 0, 0);
} else {
constexpr auto result =
- internal::compile_format_string<internal::type_list<Args...>, 0, 0>(
+ detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
format_str);
if constexpr (std::is_same<remove_cvref_t<decltype(result)>,
- internal::unknown_format>()) {
- return internal::compiled_format<S, Args...>(to_string_view(format_str));
+ detail::unknown_format>()) {
+ return detail::compiled_format<S, Args...>(to_string_view(format_str));
} else {
return result;
}
}
}
-
-template <typename CompiledFormat, typename... Args,
- typename Char = typename CompiledFormat::char_type,
- FMT_ENABLE_IF(!std::is_base_of<internal::basic_compiled_format,
- CompiledFormat>::value)>
-std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
- basic_memory_buffer<Char> buffer;
- cf.format(std::back_inserter(buffer), args...);
- return to_string(buffer);
-}
-
-template <typename OutputIt, typename CompiledFormat, typename... Args,
- FMT_ENABLE_IF(!std::is_base_of<internal::basic_compiled_format,
- CompiledFormat>::value)>
-OutputIt format_to(OutputIt out, const CompiledFormat& cf,
- const Args&... args) {
- return cf.format(out, args...);
-}
-# else
+#else
template <typename... Args, typename S,
FMT_ENABLE_IF(is_compile_string<S>::value)>
-constexpr auto compile(S format_str) -> internal::compiled_format<S, Args...> {
- return internal::compiled_format<S, Args...>(to_string_view(format_str));
+constexpr auto compile(S format_str) -> detail::compiled_format<S, Args...> {
+ return detail::compiled_format<S, Args...>(to_string_view(format_str));
}
-# endif // __cpp_if_constexpr
-#endif // FMT_USE_CONSTEXPR
+#endif // __cpp_if_constexpr
// Compiles the format string which must be a string literal.
template <typename... Args, typename Char, size_t N>
auto compile(const Char (&format_str)[N])
- -> internal::compiled_format<const Char*, Args...> {
- return internal::compiled_format<const Char*, Args...>(
+ -> detail::compiled_format<const Char*, Args...> {
+ return detail::compiled_format<const Char*, Args...>(
basic_string_view<Char>(format_str, N - 1));
}
+} // namespace detail
+
+// DEPRECATED! use FMT_COMPILE instead.
+template <typename... Args>
+FMT_DEPRECATED auto compile(const Args&... args)
+ -> decltype(detail::compile(args...)) {
+ return detail::compile(args...);
+}
+
+#if FMT_USE_CONSTEXPR
+# ifdef __cpp_if_constexpr
template <typename CompiledFormat, typename... Args,
typename Char = typename CompiledFormat::char_type,
- FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
- CompiledFormat>::value)>
-std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
+ FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
+FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
+ const Args&... args) {
basic_memory_buffer<Char> buffer;
- using range = buffer_range<Char>;
- using context = buffer_context<Char>;
- internal::cf::vformat_to<context>(range(buffer), cf,
- {make_format_args<context>(args...)});
+ cf.format(detail::buffer_appender<Char>(buffer), args...);
return to_string(buffer);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
- FMT_ENABLE_IF(std::is_base_of<internal::basic_compiled_format,
+ FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
+OutputIt format_to(OutputIt out, const CompiledFormat& cf,
+ const Args&... args) {
+ return cf.format(out, args...);
+}
+# endif // __cpp_if_constexpr
+#endif // FMT_USE_CONSTEXPR
+
+template <typename CompiledFormat, typename... Args,
+ typename Char = typename CompiledFormat::char_type,
+ FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
+ CompiledFormat>::value)>
+std::basic_string<Char> format(const CompiledFormat& cf, const Args&... args) {
+ basic_memory_buffer<Char> buffer;
+ using context = buffer_context<Char>;
+ detail::cf::vformat_to<context>(detail::buffer_appender<Char>(buffer), cf,
+ make_format_args<context>(args...));
+ return to_string(buffer);
+}
+
+template <typename S, typename... Args,
+ FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
+ Args&&... args) {
+#ifdef __cpp_if_constexpr
+ if constexpr (std::is_same<typename S::char_type, char>::value) {
+ constexpr basic_string_view<typename S::char_type> str = S();
+ if (str.size() == 2 && str[0] == '{' && str[1] == '}')
+ return fmt::to_string(detail::first(args...));
+ }
+#endif
+ constexpr auto compiled = detail::compile<Args...>(S());
+ return format(compiled, std::forward<Args>(args)...);
+}
+
+template <typename OutputIt, typename CompiledFormat, typename... Args,
+ FMT_ENABLE_IF(std::is_base_of<detail::basic_compiled_format,
CompiledFormat>::value)>
OutputIt format_to(OutputIt out, const CompiledFormat& cf,
const Args&... args) {
using char_type = typename CompiledFormat::char_type;
- using range = internal::output_range<OutputIt, char_type>;
using context = format_context_t<OutputIt, char_type>;
- return internal::cf::vformat_to<context>(
- range(out), cf, {make_format_args<context>(args...)});
+ return detail::cf::vformat_to<context>(out, cf,
+ make_format_args<context>(args...));
+}
+
+template <typename OutputIt, typename S, typename... Args,
+ FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+OutputIt format_to(OutputIt out, const S&, const Args&... args) {
+ constexpr auto compiled = detail::compile<Args...>(S());
+ return format_to(out, compiled, args...);
}
template <typename OutputIt, typename CompiledFormat, typename... Args,
- FMT_ENABLE_IF(internal::is_output_iterator<OutputIt>::value)>
+ FMT_ENABLE_IF(detail::is_output_iterator<
+ OutputIt, typename CompiledFormat::char_type>::value&&
+ std::is_base_of<detail::basic_compiled_format,
+ CompiledFormat>::value)>
format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
const CompiledFormat& cf,
const Args&... args) {
auto it =
- format_to(internal::truncating_iterator<OutputIt>(out, n), cf, args...);
+ format_to(detail::truncating_iterator<OutputIt>(out, n), cf, args...);
+ return {it.base(), it.count()};
+}
+
+template <typename OutputIt, typename S, typename... Args,
+ FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n, const S&,
+ const Args&... args) {
+ constexpr auto compiled = detail::compile<Args...>(S());
+ auto it = format_to(detail::truncating_iterator<OutputIt>(out, n), compiled,
+ args...);
return {it.base(), it.count()};
}
template <typename CompiledFormat, typename... Args>
-std::size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
- return format_to(internal::counting_iterator(), cf, args...).count();
+size_t formatted_size(const CompiledFormat& cf, const Args&... args) {
+ return format_to(detail::counting_iterator(), cf, args...).count();
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/core.h b/Externals/fmt/include/fmt/core.h
index 9fd8df2878..2903be5a07 100755
--- a/Externals/fmt/include/fmt/core.h
+++ b/Externals/fmt/include/fmt/core.h
@@ -10,30 +10,20 @@
#include <cstdio> // std::FILE
#include <cstring>
+#include <functional>
#include <iterator>
+#include <memory>
#include <string>
#include <type_traits>
+#include <vector>
// The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 60102
+#define FMT_VERSION 70100
-#ifdef __has_feature
-# define FMT_HAS_FEATURE(x) __has_feature(x)
+#ifdef __clang__
+# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
#else
-# define FMT_HAS_FEATURE(x) 0
-#endif
-
-#if defined(__has_include) && !defined(__INTELLISENSE__) && \
- !(defined(__INTEL_COMPILER) && __INTEL_COMPILER < 1600)
-# define FMT_HAS_INCLUDE(x) __has_include(x)
-#else
-# define FMT_HAS_INCLUDE(x) 0
-#endif
-
-#ifdef __has_cpp_attribute
-# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
-#else
-# define FMT_HAS_CPP_ATTRIBUTE(x) 0
+# define FMT_CLANG_VERSION 0
#endif
#if defined(__GNUC__) && !defined(__clang__)
@@ -42,6 +32,12 @@
# define FMT_GCC_VERSION 0
#endif
+#if defined(__INTEL_COMPILER)
+# define FMT_ICC_VERSION __INTEL_COMPILER
+#else
+# define FMT_ICC_VERSION 0
+#endif
+
#if __cplusplus >= 201103L || defined(__GXX_EXPERIMENTAL_CXX0X__)
# define FMT_HAS_GXX_CXX11 FMT_GCC_VERSION
#else
@@ -56,17 +52,44 @@
#ifdef _MSC_VER
# define FMT_MSC_VER _MSC_VER
+# define FMT_SUPPRESS_MSC_WARNING(n) __pragma(warning(suppress : n))
#else
# define FMT_MSC_VER 0
+# define FMT_SUPPRESS_MSC_WARNING(n)
#endif
+#ifdef __has_feature
+# define FMT_HAS_FEATURE(x) __has_feature(x)
+#else
+# define FMT_HAS_FEATURE(x) 0
+#endif
+
+#if defined(__has_include) && !defined(__INTELLISENSE__) && \
+ (!FMT_ICC_VERSION || FMT_ICC_VERSION >= 1600)
+# define FMT_HAS_INCLUDE(x) __has_include(x)
+#else
+# define FMT_HAS_INCLUDE(x) 0
+#endif
+
+#ifdef __has_cpp_attribute
+# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
+#else
+# define FMT_HAS_CPP_ATTRIBUTE(x) 0
+#endif
+
+#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \
+ (__cplusplus >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute))
+
+#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \
+ (__cplusplus >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute))
+
// Check if relaxed C++14 constexpr is supported.
// GCC doesn't allow throw in constexpr until version 6 (bug 67371).
#ifndef FMT_USE_CONSTEXPR
# define FMT_USE_CONSTEXPR \
(FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VER >= 1910 || \
(FMT_GCC_VERSION >= 600 && __cplusplus >= 201402L)) && \
- !FMT_NVCC
+ !FMT_NVCC && !FMT_ICC_VERSION
#endif
#if FMT_USE_CONSTEXPR
# define FMT_CONSTEXPR constexpr
@@ -77,7 +100,7 @@
#endif
#ifndef FMT_OVERRIDE
-# if FMT_HAS_FEATURE(cxx_override) || \
+# if FMT_HAS_FEATURE(cxx_override_control) || \
(FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900
# define FMT_OVERRIDE override
# else
@@ -117,19 +140,20 @@
# endif
#endif
-// [[noreturn]] is disabled on MSVC because of bogus unreachable code warnings.
-#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VER
+// [[noreturn]] is disabled on MSVC and NVCC because of bogus unreachable code
+// warnings.
+#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VER && \
+ !FMT_NVCC
# define FMT_NORETURN [[noreturn]]
#else
# define FMT_NORETURN
#endif
#ifndef FMT_DEPRECATED
-# if (FMT_HAS_CPP_ATTRIBUTE(deprecated) && __cplusplus >= 201402L) || \
- FMT_MSC_VER >= 1900
+# if FMT_HAS_CPP14_ATTRIBUTE(deprecated) || FMT_MSC_VER >= 1900
# define FMT_DEPRECATED [[deprecated]]
# else
-# if defined(__GNUC__) || defined(__clang__)
+# if (defined(__GNUC__) && !defined(__LCC__)) || defined(__clang__)
# define FMT_DEPRECATED __attribute__((deprecated))
# elif FMT_MSC_VER
# define FMT_DEPRECATED __declspec(deprecated)
@@ -139,16 +163,32 @@
# endif
#endif
-// Workaround broken [[deprecated]] in the Intel compiler and NVCC.
-#if defined(__INTEL_COMPILER) || FMT_NVCC
+// Workaround broken [[deprecated]] in the Intel, PGI and NVCC compilers.
+#if FMT_ICC_VERSION || defined(__PGI) || FMT_NVCC
# define FMT_DEPRECATED_ALIAS
#else
# define FMT_DEPRECATED_ALIAS FMT_DEPRECATED
#endif
-#ifndef FMT_BEGIN_NAMESPACE
+#ifndef FMT_INLINE
+# if FMT_GCC_VERSION || FMT_CLANG_VERSION
+# define FMT_INLINE inline __attribute__((always_inline))
+# else
+# define FMT_INLINE inline
+# endif
+#endif
+
+#ifndef FMT_USE_INLINE_NAMESPACES
# if FMT_HAS_FEATURE(cxx_inline_namespaces) || FMT_GCC_VERSION >= 404 || \
- FMT_MSC_VER >= 1900
+ (FMT_MSC_VER >= 1900 && !_MANAGED)
+# define FMT_USE_INLINE_NAMESPACES 1
+# else
+# define FMT_USE_INLINE_NAMESPACES 0
+# endif
+#endif
+
+#ifndef FMT_BEGIN_NAMESPACE
+# if FMT_USE_INLINE_NAMESPACES
# define FMT_INLINE_NAMESPACE inline namespace
# define FMT_END_NAMESPACE \
} \
@@ -157,21 +197,26 @@
# define FMT_INLINE_NAMESPACE namespace
# define FMT_END_NAMESPACE \
} \
- using namespace v6; \
+ using namespace v7; \
}
# endif
# define FMT_BEGIN_NAMESPACE \
namespace fmt { \
- FMT_INLINE_NAMESPACE v6 {
+ FMT_INLINE_NAMESPACE v7 {
#endif
#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+# define FMT_CLASS_API FMT_SUPPRESS_MSC_WARNING(4275)
# ifdef FMT_EXPORT
# define FMT_API __declspec(dllexport)
+# define FMT_EXTERN_TEMPLATE_API FMT_API
+# define FMT_EXPORTED
# elif defined(FMT_SHARED)
# define FMT_API __declspec(dllimport)
# define FMT_EXTERN_TEMPLATE_API FMT_API
# endif
+#else
+# define FMT_CLASS_API
#endif
#ifndef FMT_API
# define FMT_API
@@ -179,6 +224,9 @@
#ifndef FMT_EXTERN_TEMPLATE_API
# define FMT_EXTERN_TEMPLATE_API
#endif
+#ifndef FMT_INSTANTIATION_DEF_API
+# define FMT_INSTANTIATION_DEF_API FMT_API
+#endif
#ifndef FMT_HEADER_ONLY
# define FMT_EXTERN extern
@@ -197,9 +245,16 @@
# define FMT_USE_EXPERIMENTAL_STRING_VIEW
#endif
+#ifndef FMT_UNICODE
+# define FMT_UNICODE !FMT_MSC_VER
+#endif
+#if FMT_UNICODE && FMT_MSC_VER
+# pragma execution_character_set("utf-8")
+#endif
+
FMT_BEGIN_NAMESPACE
-// Implementations of enable_if_t and other types for pre-C++14 systems.
+// Implementations of enable_if_t and other metafunctions for older systems.
template <bool B, class T = void>
using enable_if_t = typename std::enable_if<B, T>::type;
template <bool B, class T, class F>
@@ -211,6 +266,8 @@ template <typename T>
using remove_const_t = typename std::remove_const<T>::type;
template <typename T>
using remove_cvref_t = typename std::remove_cv<remove_reference_t<T>>::type;
+template <typename T> struct type_identity { using type = T; };
+template <typename T> using type_identity_t = typename type_identity<T>::type;
struct monostate {};
@@ -219,21 +276,23 @@ struct monostate {};
// to workaround a bug in MSVC 2019 (see #1140 and #1186).
#define FMT_ENABLE_IF(...) enable_if_t<(__VA_ARGS__), int> = 0
-namespace internal {
+namespace detail {
-// A workaround for gcc 4.8 to make void_t work in a SFINAE context.
-template <typename... Ts> struct void_t_impl { using type = void; };
+// A helper function to suppress "conditional expression is constant" warnings.
+template <typename T> constexpr T const_check(T value) { return value; }
-FMT_API void assert_fail(const char* file, int line, const char* message);
+FMT_NORETURN FMT_API void assert_fail(const char* file, int line,
+ const char* message);
#ifndef FMT_ASSERT
# ifdef NDEBUG
-# define FMT_ASSERT(condition, message)
+// FMT_ASSERT is not empty to avoid -Werror=empty-body.
+# define FMT_ASSERT(condition, message) ((void)0)
# else
-# define FMT_ASSERT(condition, message) \
- ((condition) \
- ? void() \
- : fmt::internal::assert_fail(__FILE__, __LINE__, (message)))
+# define FMT_ASSERT(condition, message) \
+ ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \
+ ? (void)0 \
+ : ::fmt::detail::assert_fail(__FILE__, __LINE__, (message)))
# endif
#endif
@@ -248,7 +307,8 @@ template <typename T> struct std_string_view {};
#ifdef FMT_USE_INT128
// Do nothing.
-#elif defined(__SIZEOF_INT128__)
+#elif defined(__SIZEOF_INT128__) && !FMT_NVCC && \
+ !(FMT_CLANG_VERSION && FMT_MSC_VER)
# define FMT_USE_INT128 1
using int128_t = __int128_t;
using uint128_t = __uint128_t;
@@ -266,10 +326,24 @@ FMT_CONSTEXPR typename std::make_unsigned<Int>::type to_unsigned(Int value) {
FMT_ASSERT(value >= 0, "negative value");
return static_cast<typename std::make_unsigned<Int>::type>(value);
}
-} // namespace internal
-template <typename... Ts>
-using void_t = typename internal::void_t_impl<Ts...>::type;
+FMT_SUPPRESS_MSC_WARNING(4566) constexpr unsigned char micro[] = "\u00B5";
+
+template <typename Char> constexpr bool is_unicode() {
+ return FMT_UNICODE || sizeof(Char) != 1 ||
+ (sizeof(micro) == 3 && micro[0] == 0xC2 && micro[1] == 0xB5);
+}
+
+#ifdef __cpp_char8_t
+using char8_type = char8_t;
+#else
+enum char8_type : unsigned char {};
+#endif
+} // namespace detail
+
+#ifdef FMT_USE_INTERNAL
+namespace internal = detail; // DEPRECATED
+#endif
/**
An implementation of ``std::basic_string_view`` for pre-C++17. It provides a
@@ -284,13 +358,13 @@ template <typename Char> class basic_string_view {
size_t size_;
public:
- using char_type = Char;
+ using value_type = Char;
using iterator = const Char*;
- FMT_CONSTEXPR basic_string_view() FMT_NOEXCEPT : data_(nullptr), size_(0) {}
+ constexpr basic_string_view() FMT_NOEXCEPT : data_(nullptr), size_(0) {}
/** Constructs a string reference object from a C string and a size. */
- FMT_CONSTEXPR basic_string_view(const Char* s, size_t count) FMT_NOEXCEPT
+ constexpr basic_string_view(const Char* s, size_t count) FMT_NOEXCEPT
: data_(s),
size_(count) {}
@@ -300,6 +374,9 @@ template <typename Char> class basic_string_view {
the size with ``std::char_traits<Char>::length``.
\endrst
*/
+#if __cplusplus >= 201703L // C++17's char_traits::length() is constexpr.
+ FMT_CONSTEXPR
+#endif
basic_string_view(const Char* s)
: data_(s), size_(std::char_traits<Char>::length(s)) {}
@@ -310,22 +387,21 @@ template <typename Char> class basic_string_view {
: data_(s.data()),
size_(s.size()) {}
- template <
- typename S,
- FMT_ENABLE_IF(std::is_same<S, internal::std_string_view<Char>>::value)>
+ template <typename S, FMT_ENABLE_IF(std::is_same<
+ S, detail::std_string_view<Char>>::value)>
FMT_CONSTEXPR basic_string_view(S s) FMT_NOEXCEPT : data_(s.data()),
size_(s.size()) {}
/** Returns a pointer to the string data. */
- FMT_CONSTEXPR const Char* data() const { return data_; }
+ constexpr const Char* data() const { return data_; }
/** Returns the string size. */
- FMT_CONSTEXPR size_t size() const { return size_; }
+ constexpr size_t size() const { return size_; }
- FMT_CONSTEXPR iterator begin() const { return data_; }
- FMT_CONSTEXPR iterator end() const { return data_ + size_; }
+ constexpr iterator begin() const { return data_; }
+ constexpr iterator end() const { return data_ + size_; }
- FMT_CONSTEXPR const Char& operator[](size_t pos) const { return data_[pos]; }
+ constexpr const Char& operator[](size_t pos) const { return data_[pos]; }
FMT_CONSTEXPR void remove_prefix(size_t n) {
data_ += n;
@@ -364,16 +440,11 @@ template <typename Char> class basic_string_view {
using string_view = basic_string_view<char>;
using wstring_view = basic_string_view<wchar_t>;
-#ifndef __cpp_char8_t
-// A UTF-8 code unit type.
-enum char8_t : unsigned char {};
-#endif
-
/** Specifies if ``T`` is a character type. Can be specialized by users. */
template <typename T> struct is_char : std::false_type {};
template <> struct is_char<char> : std::true_type {};
template <> struct is_char<wchar_t> : std::true_type {};
-template <> struct is_char<char8_t> : std::true_type {};
+template <> struct is_char<detail::char8_type> : std::true_type {};
template <> struct is_char<char16_t> : std::true_type {};
template <> struct is_char<char32_t> : std::true_type {};
@@ -410,14 +481,13 @@ inline basic_string_view<Char> to_string_view(basic_string_view<Char> s) {
}
template <typename Char,
- FMT_ENABLE_IF(!std::is_empty<internal::std_string_view<Char>>::value)>
-inline basic_string_view<Char> to_string_view(
- internal::std_string_view<Char> s) {
+ FMT_ENABLE_IF(!std::is_empty<detail::std_string_view<Char>>::value)>
+inline basic_string_view<Char> to_string_view(detail::std_string_view<Char> s) {
return s;
}
// A base class for compile-time strings. It is defined in the fmt namespace to
-// make formatting functions visible via ADL, e.g. format(fmt("{}"), 42).
+// make formatting functions visible via ADL, e.g. format(FMT_STRING("{}"), 42).
struct compile_string {};
template <typename S>
@@ -428,9 +498,9 @@ constexpr basic_string_view<typename S::char_type> to_string_view(const S& s) {
return s;
}
-namespace internal {
+namespace detail {
void to_string_view(...);
-using fmt::v6::to_string_view;
+using fmt::v7::to_string_view;
// Specifies whether S is a string type convertible to fmt::basic_string_view.
// It should be a constexpr function but MSVC 2017 fails to compile it in
@@ -442,20 +512,32 @@ struct is_string : std::is_class<decltype(to_string_view(std::declval<S>()))> {
template <typename S, typename = void> struct char_t_impl {};
template <typename S> struct char_t_impl<S, enable_if_t<is_string<S>::value>> {
using result = decltype(to_string_view(std::declval<S>()));
- using type = typename result::char_type;
+ using type = typename result::value_type;
};
+// Reports a compile-time error if S is not a valid format string.
+template <typename..., typename S, FMT_ENABLE_IF(!is_compile_string<S>::value)>
+FMT_INLINE void check_format_string(const S&) {
+#ifdef FMT_ENFORCE_COMPILE_STRING
+ static_assert(is_compile_string<S>::value,
+ "FMT_ENFORCE_COMPILE_STRING requires all format strings to use "
+ "FMT_STRING.");
+#endif
+}
+template <typename..., typename S, FMT_ENABLE_IF(is_compile_string<S>::value)>
+void check_format_string(S);
+
struct error_handler {
- FMT_CONSTEXPR error_handler() = default;
- FMT_CONSTEXPR error_handler(const error_handler&) = default;
+ constexpr error_handler() = default;
+ constexpr error_handler(const error_handler&) = default;
// This function is intentionally not constexpr to give a compile-time error.
FMT_NORETURN FMT_API void on_error(const char* message);
};
-} // namespace internal
+} // namespace detail
/** String's character type. */
-template <typename S> using char_t = typename internal::char_t_impl<S>::type;
+template <typename S> using char_t = typename detail::char_t_impl<S>::type;
/**
\rst
@@ -473,7 +555,7 @@ template <typename S> using char_t = typename internal::char_t_impl<S>::type;
+-----------------------+-------------------------------------+
\endrst
*/
-template <typename Char, typename ErrorHandler = internal::error_handler>
+template <typename Char, typename ErrorHandler = detail::error_handler>
class basic_format_parse_context : private ErrorHandler {
private:
basic_string_view<Char> format_str_;
@@ -483,26 +565,25 @@ class basic_format_parse_context : private ErrorHandler {
using char_type = Char;
using iterator = typename basic_string_view<Char>::iterator;
- explicit FMT_CONSTEXPR basic_format_parse_context(
- basic_string_view<Char> format_str, ErrorHandler eh = ErrorHandler())
- : ErrorHandler(eh), format_str_(format_str), next_arg_id_(0) {}
+ explicit constexpr basic_format_parse_context(
+ basic_string_view<Char> format_str, ErrorHandler eh = {},
+ int next_arg_id = 0)
+ : ErrorHandler(eh), format_str_(format_str), next_arg_id_(next_arg_id) {}
/**
Returns an iterator to the beginning of the format string range being
parsed.
*/
- FMT_CONSTEXPR iterator begin() const FMT_NOEXCEPT {
- return format_str_.begin();
- }
+ constexpr iterator begin() const FMT_NOEXCEPT { return format_str_.begin(); }
/**
Returns an iterator past the end of the format string range being parsed.
*/
- FMT_CONSTEXPR iterator end() const FMT_NOEXCEPT { return format_str_.end(); }
+ constexpr iterator end() const FMT_NOEXCEPT { return format_str_.end(); }
/** Advances the begin iterator to ``it``. */
FMT_CONSTEXPR void advance_to(iterator it) {
- format_str_.remove_prefix(internal::to_unsigned(it - begin()));
+ format_str_.remove_prefix(detail::to_unsigned(it - begin()));
}
/**
@@ -510,6 +591,8 @@ class basic_format_parse_context : private ErrorHandler {
the next argument index and switches to the automatic indexing.
*/
FMT_CONSTEXPR int next_arg_id() {
+ // Don't check if the argument id is valid to avoid overhead and because it
+ // will be checked during formatting anyway.
if (next_arg_id_ >= 0) return next_arg_id_++;
on_error("cannot switch from manual to automatic argument indexing");
return 0;
@@ -532,20 +615,15 @@ class basic_format_parse_context : private ErrorHandler {
ErrorHandler::on_error(message);
}
- FMT_CONSTEXPR ErrorHandler error_handler() const { return *this; }
+ constexpr ErrorHandler error_handler() const { return *this; }
};
using format_parse_context = basic_format_parse_context<char>;
using wformat_parse_context = basic_format_parse_context<wchar_t>;
-template <typename Char, typename ErrorHandler = internal::error_handler>
-using basic_parse_context FMT_DEPRECATED_ALIAS =
- basic_format_parse_context<Char, ErrorHandler>;
-using parse_context FMT_DEPRECATED_ALIAS = basic_format_parse_context<char>;
-using wparse_context FMT_DEPRECATED_ALIAS = basic_format_parse_context<wchar_t>;
-
template <typename Context> class basic_format_arg;
template <typename Context> class basic_format_args;
+template <typename Context> class dynamic_format_arg_store;
// A formatter for objects of type T.
template <typename T, typename Char = char, typename Enable = void>
@@ -554,111 +632,18 @@ struct formatter {
formatter() = delete;
};
-template <typename T, typename Char, typename Enable = void>
-struct FMT_DEPRECATED convert_to_int
- : bool_constant<!std::is_arithmetic<T>::value &&
- std::is_convertible<T, int>::value> {};
-
// Specifies if T has an enabled formatter specialization. A type can be
// formattable even if it doesn't have a formatter e.g. via a conversion.
template <typename T, typename Context>
using has_formatter =
std::is_constructible<typename Context::template formatter_type<T>>;
-namespace internal {
+// Checks whether T is a container with contiguous storage.
+template <typename T> struct is_contiguous : std::false_type {};
+template <typename Char>
+struct is_contiguous<std::basic_string<Char>> : std::true_type {};
-/** A contiguous memory buffer with an optional growing ability. */
-template <typename T> class buffer {
- private:
- T* ptr_;
- std::size_t size_;
- std::size_t capacity_;
-
- protected:
- // Don't initialize ptr_ since it is not accessed to save a few cycles.
- buffer(std::size_t sz) FMT_NOEXCEPT : size_(sz), capacity_(sz) {}
-
- buffer(T* p = nullptr, std::size_t sz = 0, std::size_t cap = 0) FMT_NOEXCEPT
- : ptr_(p),
- size_(sz),
- capacity_(cap) {}
-
- /** Sets the buffer data and capacity. */
- void set(T* buf_data, std::size_t buf_capacity) FMT_NOEXCEPT {
- ptr_ = buf_data;
- capacity_ = buf_capacity;
- }
-
- /** Increases the buffer capacity to hold at least *capacity* elements. */
- virtual void grow(std::size_t capacity) = 0;
-
- public:
- using value_type = T;
- using const_reference = const T&;
-
- buffer(const buffer&) = delete;
- void operator=(const buffer&) = delete;
- virtual ~buffer() = default;
-
- T* begin() FMT_NOEXCEPT { return ptr_; }
- T* end() FMT_NOEXCEPT { return ptr_ + size_; }
-
- /** Returns the size of this buffer. */
- std::size_t size() const FMT_NOEXCEPT { return size_; }
-
- /** Returns the capacity of this buffer. */
- std::size_t capacity() const FMT_NOEXCEPT { return capacity_; }
-
- /** Returns a pointer to the buffer data. */
- T* data() FMT_NOEXCEPT { return ptr_; }
-
- /** Returns a pointer to the buffer data. */
- const T* data() const FMT_NOEXCEPT { return ptr_; }
-
- /**
- Resizes the buffer. If T is a POD type new elements may not be initialized.
- */
- void resize(std::size_t new_size) {
- reserve(new_size);
- size_ = new_size;
- }
-
- /** Clears this buffer. */
- void clear() { size_ = 0; }
-
- /** Reserves space to store at least *capacity* elements. */
- void reserve(std::size_t new_capacity) {
- if (new_capacity > capacity_) grow(new_capacity);
- }
-
- void push_back(const T& value) {
- reserve(size_ + 1);
- ptr_[size_++] = value;
- }
-
- /** Appends data to the end of the buffer. */
- template <typename U> void append(const U* begin, const U* end);
-
- T& operator[](std::size_t index) { return ptr_[index]; }
- const T& operator[](std::size_t index) const { return ptr_[index]; }
-};
-
-// A container-backed buffer.
-template <typename Container>
-class container_buffer : public buffer<typename Container::value_type> {
- private:
- Container& container_;
-
- protected:
- void grow(std::size_t capacity) FMT_OVERRIDE {
- container_.resize(capacity);
- this->set(&container_[0], capacity);
- }
-
- public:
- explicit container_buffer(Container& c)
- : buffer<typename Container::value_type>(c.size()), container_(c) {}
-};
+namespace detail {
// Extracts a reference to the container from back_insert_iterator.
template <typename Container>
@@ -671,6 +656,242 @@ inline Container& get_container(std::back_insert_iterator<Container> it) {
return *accessor(it).container;
}
+/**
+ \rst
+ A contiguous memory buffer with an optional growing ability. It is an internal
+ class and shouldn't be used directly, only via `~fmt::basic_memory_buffer`.
+ \endrst
+ */
+template <typename T> class buffer {
+ private:
+ T* ptr_;
+ size_t size_;
+ size_t capacity_;
+
+ protected:
+ // Don't initialize ptr_ since it is not accessed to save a few cycles.
+ FMT_SUPPRESS_MSC_WARNING(26495)
+ buffer(size_t sz) FMT_NOEXCEPT : size_(sz), capacity_(sz) {}
+
+ buffer(T* p = nullptr, size_t sz = 0, size_t cap = 0) FMT_NOEXCEPT
+ : ptr_(p),
+ size_(sz),
+ capacity_(cap) {}
+
+ ~buffer() = default;
+
+ /** Sets the buffer data and capacity. */
+ void set(T* buf_data, size_t buf_capacity) FMT_NOEXCEPT {
+ ptr_ = buf_data;
+ capacity_ = buf_capacity;
+ }
+
+ /** Increases the buffer capacity to hold at least *capacity* elements. */
+ virtual void grow(size_t capacity) = 0;
+
+ public:
+ using value_type = T;
+ using const_reference = const T&;
+
+ buffer(const buffer&) = delete;
+ void operator=(const buffer&) = delete;
+
+ T* begin() FMT_NOEXCEPT { return ptr_; }
+ T* end() FMT_NOEXCEPT { return ptr_ + size_; }
+
+ const T* begin() const FMT_NOEXCEPT { return ptr_; }
+ const T* end() const FMT_NOEXCEPT { return ptr_ + size_; }
+
+ /** Returns the size of this buffer. */
+ size_t size() const FMT_NOEXCEPT { return size_; }
+
+ /** Returns the capacity of this buffer. */
+ size_t capacity() const FMT_NOEXCEPT { return capacity_; }
+
+ /** Returns a pointer to the buffer data. */
+ T* data() FMT_NOEXCEPT { return ptr_; }
+
+ /** Returns a pointer to the buffer data. */
+ const T* data() const FMT_NOEXCEPT { return ptr_; }
+
+ /** Clears this buffer. */
+ void clear() { size_ = 0; }
+
+ // Tries resizing the buffer to contain *count* elements. If T is a POD type
+ // the new elements may not be initialized.
+ void try_resize(size_t count) {
+ try_reserve(count);
+ size_ = count <= capacity_ ? count : capacity_;
+ }
+
+ // Tries increasing the buffer capacity to *new_capacity*. It can increase the
+ // capacity by a smaller amount than requested but guarantees there is space
+ // for at least one additional element either by increasing the capacity or by
+ // flushing the buffer if it is full.
+ void try_reserve(size_t new_capacity) {
+ if (new_capacity > capacity_) grow(new_capacity);
+ }
+
+ void push_back(const T& value) {
+ try_reserve(size_ + 1);
+ ptr_[size_++] = value;
+ }
+
+ /** Appends data to the end of the buffer. */
+ template <typename U> void append(const U* begin, const U* end);
+
+ template <typename I> T& operator[](I index) { return ptr_[index]; }
+ template <typename I> const T& operator[](I index) const {
+ return ptr_[index];
+ }
+};
+
+struct buffer_traits {
+ explicit buffer_traits(size_t) {}
+ size_t count() const { return 0; }
+ size_t limit(size_t size) { return size; }
+};
+
+class fixed_buffer_traits {
+ private:
+ size_t count_ = 0;
+ size_t limit_;
+
+ public:
+ explicit fixed_buffer_traits(size_t limit) : limit_(limit) {}
+ size_t count() const { return count_; }
+ size_t limit(size_t size) {
+ size_t n = limit_ - count_;
+ count_ += size;
+ return size < n ? size : n;
+ }
+};
+
+// A buffer that writes to an output iterator when flushed.
+template <typename OutputIt, typename T, typename Traits = buffer_traits>
+class iterator_buffer final : public Traits, public buffer<T> {
+ private:
+ OutputIt out_;
+ enum { buffer_size = 256 };
+ T data_[buffer_size];
+
+ protected:
+ void grow(size_t) final FMT_OVERRIDE {
+ if (this->size() == buffer_size) flush();
+ }
+ void flush();
+
+ public:
+ explicit iterator_buffer(OutputIt out, size_t n = buffer_size)
+ : Traits(n),
+ buffer<T>(data_, 0, n < size_t(buffer_size) ? n : size_t(buffer_size)),
+ out_(out) {}
+ ~iterator_buffer() { flush(); }
+
+ OutputIt out() {
+ flush();
+ return out_;
+ }
+ size_t count() const { return Traits::count() + this->size(); }
+};
+
+template <typename T> class iterator_buffer<T*, T> final : public buffer<T> {
+ protected:
+ void grow(size_t) final FMT_OVERRIDE {}
+
+ public:
+ explicit iterator_buffer(T* out, size_t = 0) : buffer<T>(out, 0, ~size_t()) {}
+
+ T* out() { return &*this->end(); }
+};
+
+// A buffer that writes to a container with the contiguous storage.
+template <typename Container>
+class iterator_buffer<std::back_insert_iterator<Container>,
+ enable_if_t<is_contiguous<Container>::value,
+ typename Container::value_type>>
+ final : public buffer<typename Container::value_type> {
+ private:
+ Container& container_;
+
+ protected:
+ void grow(size_t capacity) final FMT_OVERRIDE {
+ container_.resize(capacity);
+ this->set(&container_[0], capacity);
+ }
+
+ public:
+ explicit iterator_buffer(Container& c)
+ : buffer<typename Container::value_type>(c.size()), container_(c) {}
+ explicit iterator_buffer(std::back_insert_iterator<Container> out, size_t = 0)
+ : iterator_buffer(get_container(out)) {}
+ std::back_insert_iterator<Container> out() {
+ return std::back_inserter(container_);
+ }
+};
+
+// A buffer that counts the number of code units written discarding the output.
+template <typename T = char> class counting_buffer final : public buffer<T> {
+ private:
+ enum { buffer_size = 256 };
+ T data_[buffer_size];
+ size_t count_ = 0;
+
+ protected:
+ void grow(size_t) final FMT_OVERRIDE {
+ if (this->size() != buffer_size) return;
+ count_ += this->size();
+ this->clear();
+ }
+
+ public:
+ counting_buffer() : buffer<T>(data_, 0, buffer_size) {}
+
+ size_t count() { return count_ + this->size(); }
+};
+
+// An output iterator that appends to the buffer.
+// It is used to reduce symbol sizes for the common case.
+template <typename T>
+class buffer_appender : public std::back_insert_iterator<buffer<T>> {
+ using base = std::back_insert_iterator<buffer<T>>;
+
+ public:
+ explicit buffer_appender(buffer<T>& buf) : base(buf) {}
+ buffer_appender(base it) : base(it) {}
+
+ buffer_appender& operator++() {
+ base::operator++();
+ return *this;
+ }
+
+ buffer_appender operator++(int) {
+ buffer_appender tmp = *this;
+ ++*this;
+ return tmp;
+ }
+};
+
+// Maps an output iterator into a buffer.
+template <typename T, typename OutputIt>
+iterator_buffer<OutputIt, T> get_buffer(OutputIt);
+template <typename T> buffer<T>& get_buffer(buffer_appender<T>);
+
+template <typename OutputIt> OutputIt get_buffer_init(OutputIt out) {
+ return out;
+}
+template <typename T> buffer<T>& get_buffer_init(buffer_appender<T> out) {
+ return get_container(out);
+}
+
+template <typename Buffer>
+auto get_iterator(Buffer& buf) -> decltype(buf.out()) {
+ return buf.out();
+}
+template <typename T> buffer_appender<T> get_iterator(buffer<T>& buf) {
+ return buffer_appender<T>(buf);
+}
+
template <typename T, typename Char = char, typename Enable = void>
struct fallback_formatter {
fallback_formatter() = delete;
@@ -681,12 +902,80 @@ template <typename T, typename Context>
using has_fallback_formatter =
std::is_constructible<fallback_formatter<T, typename Context::char_type>>;
-template <typename Char> struct named_arg_base;
-template <typename T, typename Char> struct named_arg;
+struct view {};
-enum type {
+template <typename Char, typename T> struct named_arg : view {
+ const Char* name;
+ const T& value;
+ named_arg(const Char* n, const T& v) : name(n), value(v) {}
+};
+
+template <typename Char> struct named_arg_info {
+ const Char* name;
+ int id;
+};
+
+template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS>
+struct arg_data {
+ // args_[0].named_args points to named_args_ to avoid bloating format_args.
+ // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
+ T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : +1)];
+ named_arg_info<Char> named_args_[NUM_NAMED_ARGS];
+
+ template <typename... U>
+ arg_data(const U&... init) : args_{T(named_args_, NUM_NAMED_ARGS), init...} {}
+ arg_data(const arg_data& other) = delete;
+ const T* args() const { return args_ + 1; }
+ named_arg_info<Char>* named_args() { return named_args_; }
+};
+
+template <typename T, typename Char, size_t NUM_ARGS>
+struct arg_data<T, Char, NUM_ARGS, 0> {
+ // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
+ T args_[NUM_ARGS != 0 ? NUM_ARGS : +1];
+
+ template <typename... U>
+ FMT_INLINE arg_data(const U&... init) : args_{init...} {}
+ FMT_INLINE const T* args() const { return args_; }
+ FMT_INLINE std::nullptr_t named_args() { return nullptr; }
+};
+
+template <typename Char>
+inline void init_named_args(named_arg_info<Char>*, int, int) {}
+
+template <typename Char, typename T, typename... Tail>
+void init_named_args(named_arg_info<Char>* named_args, int arg_count,
+ int named_arg_count, const T&, const Tail&... args) {
+ init_named_args(named_args, arg_count + 1, named_arg_count, args...);
+}
+
+template <typename Char, typename T, typename... Tail>
+void init_named_args(named_arg_info<Char>* named_args, int arg_count,
+ int named_arg_count, const named_arg<Char, T>& arg,
+ const Tail&... args) {
+ named_args[named_arg_count++] = {arg.name, arg_count};
+ init_named_args(named_args, arg_count + 1, named_arg_count, args...);
+}
+
+template <typename... Args>
+FMT_INLINE void init_named_args(std::nullptr_t, int, int, const Args&...) {}
+
+template <typename T> struct is_named_arg : std::false_type {};
+
+template <typename T, typename Char>
+struct is_named_arg<named_arg<Char, T>> : std::true_type {};
+
+template <bool B = false> constexpr size_t count() { return B ? 1 : 0; }
+template <bool B1, bool B2, bool... Tail> constexpr size_t count() {
+ return (B1 ? 1 : 0) + count<B2, Tail...>();
+}
+
+template <typename... Args> constexpr size_t count_named_args() {
+ return count<is_named_arg<Args>::value...>();
+}
+
+enum class type {
none_type,
- named_arg_type,
// Integer types should go first,
int_type,
uint_type,
@@ -710,13 +999,13 @@ enum type {
// Maps core type T to the corresponding type enum constant.
template <typename T, typename Char>
-struct type_constant : std::integral_constant<type, custom_type> {};
+struct type_constant : std::integral_constant<type, type::custom_type> {};
#define FMT_TYPE_CONSTANT(Type, constant) \
template <typename Char> \
- struct type_constant<Type, Char> : std::integral_constant<type, constant> {}
+ struct type_constant<Type, Char> \
+ : std::integral_constant<type, type::constant> {}
-FMT_TYPE_CONSTANT(const named_arg_base<Char>&, named_arg_type);
FMT_TYPE_CONSTANT(int, int_type);
FMT_TYPE_CONSTANT(unsigned, uint_type);
FMT_TYPE_CONSTANT(long long, long_long_type);
@@ -732,23 +1021,26 @@ FMT_TYPE_CONSTANT(const Char*, cstring_type);
FMT_TYPE_CONSTANT(basic_string_view<Char>, string_type);
FMT_TYPE_CONSTANT(const void*, pointer_type);
-FMT_CONSTEXPR bool is_integral_type(type t) {
- FMT_ASSERT(t != named_arg_type, "invalid argument type");
- return t > none_type && t <= last_integer_type;
+constexpr bool is_integral_type(type t) {
+ return t > type::none_type && t <= type::last_integer_type;
}
-FMT_CONSTEXPR bool is_arithmetic_type(type t) {
- FMT_ASSERT(t != named_arg_type, "invalid argument type");
- return t > none_type && t <= last_numeric_type;
+constexpr bool is_arithmetic_type(type t) {
+ return t > type::none_type && t <= type::last_numeric_type;
}
template <typename Char> struct string_value {
const Char* data;
- std::size_t size;
+ size_t size;
+};
+
+template <typename Char> struct named_arg_value {
+ const named_arg_info<Char>* data;
+ size_t size;
};
template <typename Context> struct custom_value {
- using parse_context = basic_format_parse_context<typename Context::char_type>;
+ using parse_context = typename Context::parse_context_type;
const void* value;
void (*format)(const void* arg, parse_context& parse_ctx, Context& ctx);
};
@@ -773,28 +1065,30 @@ template <typename Context> class value {
const void* pointer;
string_value<char_type> string;
custom_value<Context> custom;
- const named_arg_base<char_type>* named_arg;
+ named_arg_value<char_type> named_args;
};
- FMT_CONSTEXPR value(int val = 0) : int_value(val) {}
- FMT_CONSTEXPR value(unsigned val) : uint_value(val) {}
- value(long long val) : long_long_value(val) {}
- value(unsigned long long val) : ulong_long_value(val) {}
- value(int128_t val) : int128_value(val) {}
- value(uint128_t val) : uint128_value(val) {}
- value(float val) : float_value(val) {}
- value(double val) : double_value(val) {}
- value(long double val) : long_double_value(val) {}
- value(bool val) : bool_value(val) {}
- value(char_type val) : char_value(val) {}
- value(const char_type* val) { string.data = val; }
- value(basic_string_view<char_type> val) {
+ constexpr FMT_INLINE value(int val = 0) : int_value(val) {}
+ constexpr FMT_INLINE value(unsigned val) : uint_value(val) {}
+ FMT_INLINE value(long long val) : long_long_value(val) {}
+ FMT_INLINE value(unsigned long long val) : ulong_long_value(val) {}
+ FMT_INLINE value(int128_t val) : int128_value(val) {}
+ FMT_INLINE value(uint128_t val) : uint128_value(val) {}
+ FMT_INLINE value(float val) : float_value(val) {}
+ FMT_INLINE value(double val) : double_value(val) {}
+ FMT_INLINE value(long double val) : long_double_value(val) {}
+ FMT_INLINE value(bool val) : bool_value(val) {}
+ FMT_INLINE value(char_type val) : char_value(val) {}
+ FMT_INLINE value(const char_type* val) { string.data = val; }
+ FMT_INLINE value(basic_string_view<char_type> val) {
string.data = val.data();
string.size = val.size();
}
- value(const void* val) : pointer(val) {}
+ FMT_INLINE value(const void* val) : pointer(val) {}
+ FMT_INLINE value(const named_arg_info<char_type>* args, size_t size)
+ : named_args{args, size} {}
- template <typename T> value(const T& val) {
+ template <typename T> FMT_INLINE value(const T& val) {
custom.value = &val;
// Get the formatter type through the context to allow different contexts
// have different extension points, e.g. `formatter<T>` for `format` and
@@ -805,14 +1099,12 @@ template <typename Context> class value {
fallback_formatter<T, char_type>>>;
}
- value(const named_arg_base<char_type>& val) { named_arg = &val; }
-
private:
// Formats an argument of a custom type, such as a user-defined class.
template <typename T, typename Formatter>
- static void format_custom_arg(
- const void* arg, basic_format_parse_context<char_type>& parse_ctx,
- Context& ctx) {
+ static void format_custom_arg(const void* arg,
+ typename Context::parse_context_type& parse_ctx,
+ Context& ctx) {
Formatter f;
parse_ctx.advance_to(f.parse(parse_ctx));
ctx.advance_to(f.format(*static_cast<const T*>(arg), ctx));
@@ -828,6 +1120,8 @@ enum { long_short = sizeof(long) == sizeof(int) };
using long_type = conditional_t<long_short, int, long long>;
using ulong_type = conditional_t<long_short, unsigned, unsigned long long>;
+struct unformattable {};
+
// Maps formatting arguments to core types.
template <typename Context> struct arg_mapper {
using char_type = typename Context::char_type;
@@ -869,7 +1163,8 @@ template <typename Context> struct arg_mapper {
template <typename T,
FMT_ENABLE_IF(
std::is_constructible<basic_string_view<char_type>, T>::value &&
- !is_string<T>::value)>
+ !is_string<T>::value && !has_formatter<T, Context>::value &&
+ !has_fallback_formatter<T, Context>::value)>
FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) {
return basic_string_view<char_type>(val);
}
@@ -878,7 +1173,8 @@ template <typename Context> struct arg_mapper {
FMT_ENABLE_IF(
std::is_constructible<std_string_view<char_type>, T>::value &&
!std::is_constructible<basic_string_view<char_type>, T>::value &&
- !is_string<T>::value && !has_formatter<T, Context>::value)>
+ !is_string<T>::value && !has_formatter<T, Context>::value &&
+ !has_fallback_formatter<T, Context>::value)>
FMT_CONSTEXPR basic_string_view<char_type> map(const T& val) {
return std_string_view<char_type>(val);
}
@@ -890,6 +1186,14 @@ template <typename Context> struct arg_mapper {
static_assert(std::is_same<char_type, char>::value, "invalid string type");
return reinterpret_cast<const char*>(val);
}
+ FMT_CONSTEXPR const char* map(signed char* val) {
+ const auto* const_val = val;
+ return map(const_val);
+ }
+ FMT_CONSTEXPR const char* map(unsigned char* val) {
+ const auto* const_val = val;
+ return map(const_val);
+ }
FMT_CONSTEXPR const void* map(void* val) { return val; }
FMT_CONSTEXPR const void* map(const void* val) { return val; }
@@ -907,29 +1211,26 @@ template <typename Context> struct arg_mapper {
FMT_ENABLE_IF(std::is_enum<T>::value &&
!has_formatter<T, Context>::value &&
!has_fallback_formatter<T, Context>::value)>
- FMT_CONSTEXPR auto map(const T& val) -> decltype(
- map(static_cast<typename std::underlying_type<T>::type>(val))) {
+ FMT_CONSTEXPR auto map(const T& val)
+ -> decltype(std::declval<arg_mapper>().map(
+ static_cast<typename std::underlying_type<T>::type>(val))) {
return map(static_cast<typename std::underlying_type<T>::type>(val));
}
- template <
- typename T,
- FMT_ENABLE_IF(
- !is_string<T>::value && !is_char<T>::value &&
- !std::is_constructible<basic_string_view<char_type>, T>::value &&
- (has_formatter<T, Context>::value ||
- (has_fallback_formatter<T, Context>::value &&
- !std::is_constructible<std_string_view<char_type>, T>::value)))>
+ template <typename T,
+ FMT_ENABLE_IF(!is_string<T>::value && !is_char<T>::value &&
+ (has_formatter<T, Context>::value ||
+ has_fallback_formatter<T, Context>::value))>
FMT_CONSTEXPR const T& map(const T& val) {
return val;
}
template <typename T>
- FMT_CONSTEXPR const named_arg_base<char_type>& map(
- const named_arg<T, char_type>& val) {
- auto arg = make_arg<Context>(val.value);
- std::memcpy(val.data, &arg, sizeof(arg));
- return val;
+ FMT_CONSTEXPR auto map(const named_arg<char_type, T>& val)
+ -> decltype(std::declval<arg_mapper>().map(val.value)) {
+ return map(val.value);
}
+
+ unformattable map(...) { return {}; }
};
// A type constant after applying arg_mapper<Context>.
@@ -938,23 +1239,22 @@ using mapped_type_constant =
type_constant<decltype(arg_mapper<Context>().map(std::declval<const T&>())),
typename Context::char_type>;
-enum { packed_arg_bits = 5 };
+enum { packed_arg_bits = 4 };
// Maximum number of arguments with packed types.
-enum { max_packed_args = 63 / packed_arg_bits };
+enum { max_packed_args = 62 / packed_arg_bits };
enum : unsigned long long { is_unpacked_bit = 1ULL << 63 };
-
-template <typename Context> class arg_map;
-} // namespace internal
+enum : unsigned long long { has_named_args_bit = 1ULL << 62 };
+} // namespace detail
// A formatting argument. It is a trivially copyable/constructible type to
// allow storage in basic_memory_buffer.
template <typename Context> class basic_format_arg {
private:
- internal::value<Context> value_;
- internal::type type_;
+ detail::value<Context> value_;
+ detail::type type_;
template <typename ContextType, typename T>
- friend FMT_CONSTEXPR basic_format_arg<ContextType> internal::make_arg(
+ friend FMT_CONSTEXPR basic_format_arg<ContextType> detail::make_arg(
const T& value);
template <typename Visitor, typename Ctx>
@@ -963,34 +1263,40 @@ template <typename Context> class basic_format_arg {
-> decltype(vis(0));
friend class basic_format_args<Context>;
- friend class internal::arg_map<Context>;
+ friend class dynamic_format_arg_store<Context>;
using char_type = typename Context::char_type;
+ template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS>
+ friend struct detail::arg_data;
+
+ basic_format_arg(const detail::named_arg_info<char_type>* args, size_t size)
+ : value_(args, size) {}
+
public:
class handle {
public:
- explicit handle(internal::custom_value<Context> custom) : custom_(custom) {}
+ explicit handle(detail::custom_value<Context> custom) : custom_(custom) {}
- void format(basic_format_parse_context<char_type>& parse_ctx,
+ void format(typename Context::parse_context_type& parse_ctx,
Context& ctx) const {
custom_.format(custom_.value, parse_ctx, ctx);
}
private:
- internal::custom_value<Context> custom_;
+ detail::custom_value<Context> custom_;
};
- FMT_CONSTEXPR basic_format_arg() : type_(internal::none_type) {}
+ constexpr basic_format_arg() : type_(detail::type::none_type) {}
- FMT_CONSTEXPR explicit operator bool() const FMT_NOEXCEPT {
- return type_ != internal::none_type;
+ constexpr explicit operator bool() const FMT_NOEXCEPT {
+ return type_ != detail::type::none_type;
}
- internal::type type() const { return type_; }
+ detail::type type() const { return type_; }
- bool is_integral() const { return internal::is_integral_type(type_); }
- bool is_arithmetic() const { return internal::is_arithmetic_type(type_); }
+ bool is_integral() const { return detail::is_integral_type(type_); }
+ bool is_arithmetic() const { return detail::is_arithmetic_type(type_); }
};
/**
@@ -1001,92 +1307,86 @@ template <typename Context> class basic_format_arg {
\endrst
*/
template <typename Visitor, typename Context>
-FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis,
- const basic_format_arg<Context>& arg)
- -> decltype(vis(0)) {
+FMT_CONSTEXPR_DECL FMT_INLINE auto visit_format_arg(
+ Visitor&& vis, const basic_format_arg<Context>& arg) -> decltype(vis(0)) {
using char_type = typename Context::char_type;
switch (arg.type_) {
- case internal::none_type:
+ case detail::type::none_type:
break;
- case internal::named_arg_type:
- FMT_ASSERT(false, "invalid argument type");
- break;
- case internal::int_type:
+ case detail::type::int_type:
return vis(arg.value_.int_value);
- case internal::uint_type:
+ case detail::type::uint_type:
return vis(arg.value_.uint_value);
- case internal::long_long_type:
+ case detail::type::long_long_type:
return vis(arg.value_.long_long_value);
- case internal::ulong_long_type:
+ case detail::type::ulong_long_type:
return vis(arg.value_.ulong_long_value);
#if FMT_USE_INT128
- case internal::int128_type:
+ case detail::type::int128_type:
return vis(arg.value_.int128_value);
- case internal::uint128_type:
+ case detail::type::uint128_type:
return vis(arg.value_.uint128_value);
#else
- case internal::int128_type:
- case internal::uint128_type:
+ case detail::type::int128_type:
+ case detail::type::uint128_type:
break;
#endif
- case internal::bool_type:
+ case detail::type::bool_type:
return vis(arg.value_.bool_value);
- case internal::char_type:
+ case detail::type::char_type:
return vis(arg.value_.char_value);
- case internal::float_type:
+ case detail::type::float_type:
return vis(arg.value_.float_value);
- case internal::double_type:
+ case detail::type::double_type:
return vis(arg.value_.double_value);
- case internal::long_double_type:
+ case detail::type::long_double_type:
return vis(arg.value_.long_double_value);
- case internal::cstring_type:
+ case detail::type::cstring_type:
return vis(arg.value_.string.data);
- case internal::string_type:
+ case detail::type::string_type:
return vis(basic_string_view<char_type>(arg.value_.string.data,
arg.value_.string.size));
- case internal::pointer_type:
+ case detail::type::pointer_type:
return vis(arg.value_.pointer);
- case internal::custom_type:
+ case detail::type::custom_type:
return vis(typename basic_format_arg<Context>::handle(arg.value_.custom));
}
return vis(monostate());
}
-namespace internal {
-// A map from argument names to their values for named arguments.
-template <typename Context> class arg_map {
- private:
- using char_type = typename Context::char_type;
+template <typename T> struct formattable : std::false_type {};
- struct entry {
- basic_string_view<char_type> name;
- basic_format_arg<Context> arg;
- };
+namespace detail {
- entry* map_;
- unsigned size_;
+// A workaround for gcc 4.8 to make void_t work in a SFINAE context.
+template <typename... Ts> struct void_t_impl { using type = void; };
+template <typename... Ts>
+using void_t = typename detail::void_t_impl<Ts...>::type;
- void push_back(value<Context> val) {
- const auto& named = *val.named_arg;
- map_[size_] = {named.name, named.template deserialize<Context>()};
- ++size_;
- }
+template <typename It, typename T, typename Enable = void>
+struct is_output_iterator : std::false_type {};
- public:
- arg_map(const arg_map&) = delete;
- void operator=(const arg_map&) = delete;
- arg_map() : map_(nullptr), size_(0) {}
- void init(const basic_format_args<Context>& args);
- ~arg_map() { delete[] map_; }
+template <typename It, typename T>
+struct is_output_iterator<
+ It, T,
+ void_t<typename std::iterator_traits<It>::iterator_category,
+ decltype(*std::declval<It>() = std::declval<T>())>>
+ : std::true_type {};
- basic_format_arg<Context> find(basic_string_view<char_type> name) const {
- // The list is unsorted, so just return the first matching name.
- for (entry *it = map_, *end = map_ + size_; it != end; ++it) {
- if (it->name == name) return it->arg;
- }
- return {};
- }
-};
+template <typename OutputIt>
+struct is_back_insert_iterator : std::false_type {};
+template <typename Container>
+struct is_back_insert_iterator<std::back_insert_iterator<Container>>
+ : std::true_type {};
+
+template <typename OutputIt>
+struct is_contiguous_back_insert_iterator : std::false_type {};
+template <typename Container>
+struct is_contiguous_back_insert_iterator<std::back_insert_iterator<Container>>
+ : is_contiguous<Container> {};
+template <typename Char>
+struct is_contiguous_back_insert_iterator<buffer_appender<Char>>
+ : std::true_type {};
// A type-erased reference to an std::locale to avoid heavy <locale> include.
class locale_ref {
@@ -1106,7 +1406,7 @@ template <typename> constexpr unsigned long long encode_types() { return 0; }
template <typename Context, typename Arg, typename... Args>
constexpr unsigned long long encode_types() {
- return mapped_type_constant<Arg, Context>::value |
+ return static_cast<unsigned>(mapped_type_constant<Arg, Context>::value) |
(encode_types<Context, Args...>() << packed_arg_bits);
}
@@ -1118,18 +1418,73 @@ FMT_CONSTEXPR basic_format_arg<Context> make_arg(const T& value) {
return arg;
}
-template <bool IS_PACKED, typename Context, typename T,
- FMT_ENABLE_IF(IS_PACKED)>
-inline value<Context> make_arg(const T& val) {
- return arg_mapper<Context>().map(val);
+template <typename T> int check(unformattable) {
+ static_assert(
+ formattable<T>(),
+ "Cannot format an argument. To make type T formattable provide a "
+ "formatter<T> specialization: https://fmt.dev/latest/api.html#udt");
+ return 0;
+}
+template <typename T, typename U> inline const U& check(const U& val) {
+ return val;
}
-template <bool IS_PACKED, typename Context, typename T,
+// The type template parameter is there to avoid an ODR violation when using
+// a fallback formatter in one translation unit and an implicit conversion in
+// another (not recommended).
+template <bool IS_PACKED, typename Context, type, typename T,
+ FMT_ENABLE_IF(IS_PACKED)>
+inline value<Context> make_arg(const T& val) {
+ return check<T>(arg_mapper<Context>().map(val));
+}
+
+template <bool IS_PACKED, typename Context, type, typename T,
FMT_ENABLE_IF(!IS_PACKED)>
inline basic_format_arg<Context> make_arg(const T& value) {
return make_arg<Context>(value);
}
-} // namespace internal
+
+template <typename T> struct is_reference_wrapper : std::false_type {};
+template <typename T>
+struct is_reference_wrapper<std::reference_wrapper<T>> : std::true_type {};
+
+template <typename T> const T& unwrap(const T& v) { return v; }
+template <typename T> const T& unwrap(const std::reference_wrapper<T>& v) {
+ return static_cast<const T&>(v);
+}
+
+class dynamic_arg_list {
+ // Workaround for clang's -Wweak-vtables. Unlike for regular classes, for
+ // templates it doesn't complain about inability to deduce single translation
+ // unit for placing vtable. So storage_node_base is made a fake template.
+ template <typename = void> struct node {
+ virtual ~node() = default;
+ std::unique_ptr<node<>> next;
+ };
+
+ template <typename T> struct typed_node : node<> {
+ T value;
+
+ template <typename Arg>
+ FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {}
+
+ template <typename Char>
+ FMT_CONSTEXPR typed_node(const basic_string_view<Char>& arg)
+ : value(arg.data(), arg.size()) {}
+ };
+
+ std::unique_ptr<node<>> head_;
+
+ public:
+ template <typename T, typename Arg> const T& push(const Arg& arg) {
+ auto new_node = std::unique_ptr<typed_node<T>>(new typed_node<T>(arg));
+ auto& value = new_node->value;
+ new_node->next = std::move(head_);
+ head_ = std::move(new_node);
+ return value;
+ }
+};
+} // namespace detail
// Formatting context.
template <typename OutputIt, typename Char> class basic_format_context {
@@ -1140,12 +1495,12 @@ template <typename OutputIt, typename Char> class basic_format_context {
private:
OutputIt out_;
basic_format_args<basic_format_context> args_;
- internal::arg_map<basic_format_context> map_;
- internal::locale_ref loc_;
+ detail::locale_ref loc_;
public:
using iterator = OutputIt;
using format_arg = basic_format_arg<basic_format_context>;
+ using parse_context_type = basic_format_parse_context<Char>;
template <typename T> using formatter_type = formatter<T, char_type>;
basic_format_context(const basic_format_context&) = delete;
@@ -1156,34 +1511,38 @@ template <typename OutputIt, typename Char> class basic_format_context {
*/
basic_format_context(OutputIt out,
basic_format_args<basic_format_context> ctx_args,
- internal::locale_ref loc = internal::locale_ref())
+ detail::locale_ref loc = detail::locale_ref())
: out_(out), args_(ctx_args), loc_(loc) {}
format_arg arg(int id) const { return args_.get(id); }
+ format_arg arg(basic_string_view<char_type> name) { return args_.get(name); }
+ int arg_id(basic_string_view<char_type> name) { return args_.get_id(name); }
+ const basic_format_args<basic_format_context>& args() const { return args_; }
- // Checks if manual indexing is used and returns the argument with the
- // specified name.
- format_arg arg(basic_string_view<char_type> name);
-
- internal::error_handler error_handler() { return {}; }
+ detail::error_handler error_handler() { return {}; }
void on_error(const char* message) { error_handler().on_error(message); }
// Returns an iterator to the beginning of the output range.
iterator out() { return out_; }
// Advances the begin iterator to ``it``.
- void advance_to(iterator it) { out_ = it; }
+ void advance_to(iterator it) {
+ if (!detail::is_back_insert_iterator<iterator>()) out_ = it;
+ }
- internal::locale_ref locale() { return loc_; }
+ detail::locale_ref locale() { return loc_; }
};
template <typename Char>
using buffer_context =
- basic_format_context<std::back_insert_iterator<internal::buffer<Char>>,
- Char>;
+ basic_format_context<detail::buffer_appender<Char>, Char>;
using format_context = buffer_context<char>;
using wformat_context = buffer_context<wchar_t>;
+// Workaround an alias issue: https://stackoverflow.com/q/62767544/471164.
+#define FMT_BUFFER_CONTEXT(Char) \
+ basic_format_context<detail::buffer_appender<Char>, Char>
+
/**
\rst
An array of references to arguments. It can be implicitly converted into
@@ -1191,31 +1550,50 @@ using wformat_context = buffer_context<wchar_t>;
such as `~fmt::vformat`.
\endrst
*/
-template <typename Context, typename... Args> class format_arg_store {
+template <typename Context, typename... Args>
+class format_arg_store
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
+ // Workaround a GCC template argument substitution bug.
+ : public basic_format_args<Context>
+#endif
+{
private:
static const size_t num_args = sizeof...(Args);
- static const bool is_packed = num_args < internal::max_packed_args;
+ static const size_t num_named_args = detail::count_named_args<Args...>();
+ static const bool is_packed = num_args <= detail::max_packed_args;
- using value_type = conditional_t<is_packed, internal::value<Context>,
+ using value_type = conditional_t<is_packed, detail::value<Context>,
basic_format_arg<Context>>;
- // If the arguments are not packed, add one more element to mark the end.
- value_type data_[num_args + (num_args == 0 ? 1 : 0)];
+ detail::arg_data<value_type, typename Context::char_type, num_args,
+ num_named_args>
+ data_;
friend class basic_format_args<Context>;
- public:
- static constexpr unsigned long long types =
- is_packed ? internal::encode_types<Context, Args...>()
- : internal::is_unpacked_bit | num_args;
+ static constexpr unsigned long long desc =
+ (is_packed ? detail::encode_types<Context, Args...>()
+ : detail::is_unpacked_bit | num_args) |
+ (num_named_args != 0
+ ? static_cast<unsigned long long>(detail::has_named_args_bit)
+ : 0);
+ public:
format_arg_store(const Args&... args)
- : data_{internal::make_arg<is_packed, Context>(args)...} {}
+ :
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
+ basic_format_args<Context>(*this),
+#endif
+ data_{detail::make_arg<
+ is_packed, Context,
+ detail::mapped_type_constant<Args, Context>::value>(args)...} {
+ detail::init_named_args(data_.named_args(), 0, 0, args...);
+ }
};
/**
\rst
- Constructs an `~fmt::format_arg_store` object that contains references to
+ Constructs a `~fmt::format_arg_store` object that contains references to
arguments and can be implicitly converted to `~fmt::format_args`. `Context`
can be omitted in which case it defaults to `~fmt::context`.
See `~fmt::arg` for lifetime considerations.
@@ -1227,56 +1605,266 @@ inline format_arg_store<Context, Args...> make_format_args(
return {args...};
}
-/** Formatting arguments. */
+/**
+ \rst
+ Constructs a `~fmt::format_arg_store` object that contains references
+ to arguments and can be implicitly converted to `~fmt::format_args`.
+ If ``format_str`` is a compile-time string then `make_args_checked` checks
+ its validity at compile time.
+ \endrst
+ */
+template <typename... Args, typename S, typename Char = char_t<S>>
+inline auto make_args_checked(const S& format_str,
+ const remove_reference_t<Args>&... args)
+ -> format_arg_store<buffer_context<Char>, remove_reference_t<Args>...> {
+ static_assert(
+ detail::count<(
+ std::is_base_of<detail::view, remove_reference_t<Args>>::value &&
+ std::is_reference<Args>::value)...>() == 0,
+ "passing views as lvalues is disallowed");
+ detail::check_format_string<Args...>(format_str);
+ return {args...};
+}
+
+/**
+ \rst
+ Returns a named argument to be used in a formatting function. It should only
+ be used in a call to a formatting function.
+
+ **Example**::
+
+ fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23));
+ \endrst
+ */
+template <typename Char, typename T>
+inline detail::named_arg<Char, T> arg(const Char* name, const T& arg) {
+ static_assert(!detail::is_named_arg<T>(), "nested named arguments");
+ return {name, arg};
+}
+
+/**
+ \rst
+ A dynamic version of `fmt::format_arg_store`.
+ It's equipped with a storage to potentially temporary objects which lifetimes
+ could be shorter than the format arguments object.
+
+ It can be implicitly converted into `~fmt::basic_format_args` for passing
+ into type-erased formatting functions such as `~fmt::vformat`.
+ \endrst
+ */
+template <typename Context>
+class dynamic_format_arg_store
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
+ // Workaround a GCC template argument substitution bug.
+ : public basic_format_args<Context>
+#endif
+{
+ private:
+ using char_type = typename Context::char_type;
+
+ template <typename T> struct need_copy {
+ static constexpr detail::type mapped_type =
+ detail::mapped_type_constant<T, Context>::value;
+
+ enum {
+ value = !(detail::is_reference_wrapper<T>::value ||
+ std::is_same<T, basic_string_view<char_type>>::value ||
+ std::is_same<T, detail::std_string_view<char_type>>::value ||
+ (mapped_type != detail::type::cstring_type &&
+ mapped_type != detail::type::string_type &&
+ mapped_type != detail::type::custom_type))
+ };
+ };
+
+ template <typename T>
+ using stored_type = conditional_t<detail::is_string<T>::value,
+ std::basic_string<char_type>, T>;
+
+ // Storage of basic_format_arg must be contiguous.
+ std::vector<basic_format_arg<Context>> data_;
+ std::vector<detail::named_arg_info<char_type>> named_info_;
+
+ // Storage of arguments not fitting into basic_format_arg must grow
+ // without relocation because items in data_ refer to it.
+ detail::dynamic_arg_list dynamic_args_;
+
+ friend class basic_format_args<Context>;
+
+ unsigned long long get_types() const {
+ return detail::is_unpacked_bit | data_.size() |
+ (named_info_.empty()
+ ? 0ULL
+ : static_cast<unsigned long long>(detail::has_named_args_bit));
+ }
+
+ const basic_format_arg<Context>* data() const {
+ return named_info_.empty() ? data_.data() : data_.data() + 1;
+ }
+
+ template <typename T> void emplace_arg(const T& arg) {
+ data_.emplace_back(detail::make_arg<Context>(arg));
+ }
+
+ template <typename T>
+ void emplace_arg(const detail::named_arg<char_type, T>& arg) {
+ if (named_info_.empty()) {
+ constexpr const detail::named_arg_info<char_type>* zero_ptr{nullptr};
+ data_.insert(data_.begin(), {zero_ptr, 0});
+ }
+ data_.emplace_back(detail::make_arg<Context>(detail::unwrap(arg.value)));
+ auto pop_one = [](std::vector<basic_format_arg<Context>>* data) {
+ data->pop_back();
+ };
+ std::unique_ptr<std::vector<basic_format_arg<Context>>, decltype(pop_one)>
+ guard{&data_, pop_one};
+ named_info_.push_back({arg.name, static_cast<int>(data_.size() - 2u)});
+ data_[0].value_.named_args = {named_info_.data(), named_info_.size()};
+ guard.release();
+ }
+
+ public:
+ /**
+ \rst
+ Adds an argument into the dynamic store for later passing to a formatting
+ function.
+
+ Note that custom types and string types (but not string views) are copied
+ into the store dynamically allocating memory if necessary.
+
+ **Example**::
+
+ fmt::dynamic_format_arg_store<fmt::format_context> store;
+ store.push_back(42);
+ store.push_back("abc");
+ store.push_back(1.5f);
+ std::string result = fmt::vformat("{} and {} and {}", store);
+ \endrst
+ */
+ template <typename T> void push_back(const T& arg) {
+ if (detail::const_check(need_copy<T>::value))
+ emplace_arg(dynamic_args_.push<stored_type<T>>(arg));
+ else
+ emplace_arg(detail::unwrap(arg));
+ }
+
+ /**
+ \rst
+ Adds a reference to the argument into the dynamic store for later passing to
+ a formatting function. Supports named arguments wrapped in
+ ``std::reference_wrapper`` via ``std::ref()``/``std::cref()``.
+
+ **Example**::
+
+ fmt::dynamic_format_arg_store<fmt::format_context> store;
+ char str[] = "1234567890";
+ store.push_back(std::cref(str));
+ int a1_val{42};
+ auto a1 = fmt::arg("a1_", a1_val);
+ store.push_back(std::cref(a1));
+
+ // Changing str affects the output but only for string and custom types.
+ str[0] = 'X';
+
+ std::string result = fmt::vformat("{} and {a1_}");
+ assert(result == "X234567890 and 42");
+ \endrst
+ */
+ template <typename T> void push_back(std::reference_wrapper<T> arg) {
+ static_assert(
+ detail::is_named_arg<typename std::remove_cv<T>::type>::value ||
+ need_copy<T>::value,
+ "objects of built-in types and string views are always copied");
+ emplace_arg(arg.get());
+ }
+
+ /**
+ Adds named argument into the dynamic store for later passing to a formatting
+ function. ``std::reference_wrapper`` is supported to avoid copying of the
+ argument.
+ */
+ template <typename T>
+ void push_back(const detail::named_arg<char_type, T>& arg) {
+ const char_type* arg_name =
+ dynamic_args_.push<std::basic_string<char_type>>(arg.name).c_str();
+ if (detail::const_check(need_copy<T>::value)) {
+ emplace_arg(
+ fmt::arg(arg_name, dynamic_args_.push<stored_type<T>>(arg.value)));
+ } else {
+ emplace_arg(fmt::arg(arg_name, arg.value));
+ }
+ }
+
+ /** Erase all elements from the store */
+ void clear() {
+ data_.clear();
+ named_info_.clear();
+ dynamic_args_ = detail::dynamic_arg_list();
+ }
+
+ /**
+ \rst
+ Reserves space to store at least *new_cap* arguments including
+ *new_cap_named* named arguments.
+ \endrst
+ */
+ void reserve(size_t new_cap, size_t new_cap_named) {
+ FMT_ASSERT(new_cap >= new_cap_named,
+ "Set of arguments includes set of named arguments");
+ data_.reserve(new_cap);
+ named_info_.reserve(new_cap_named);
+ }
+};
+
+/**
+ \rst
+ A view of a collection of formatting arguments. To avoid lifetime issues it
+ should only be used as a parameter type in type-erased functions such as
+ ``vformat``::
+
+ void vlog(string_view format_str, format_args args); // OK
+ format_args args = make_format_args(42); // Error: dangling reference
+ \endrst
+ */
template <typename Context> class basic_format_args {
public:
using size_type = int;
using format_arg = basic_format_arg<Context>;
private:
- // To reduce compiled code size per formatting function call, types of first
- // max_packed_args arguments are passed in the types_ field.
- unsigned long long types_;
+ // A descriptor that contains information about formatting arguments.
+ // If the number of arguments is less or equal to max_packed_args then
+ // argument types are passed in the descriptor. This reduces binary code size
+ // per formatting function call.
+ unsigned long long desc_;
union {
- // If the number of arguments is less than max_packed_args, the argument
- // values are stored in values_, otherwise they are stored in args_.
- // This is done to reduce compiled code size as storing larger objects
+ // If is_packed() returns true then argument values are stored in values_;
+ // otherwise they are stored in args_. This is done to improve cache
+ // locality and reduce compiled code size since storing larger objects
// may require more code (at least on x86-64) even if the same amount of
// data is actually copied to stack. It saves ~10% on the bloat test.
- const internal::value<Context>* values_;
+ const detail::value<Context>* values_;
const format_arg* args_;
};
- bool is_packed() const { return (types_ & internal::is_unpacked_bit) == 0; }
-
- internal::type type(int index) const {
- int shift = index * internal::packed_arg_bits;
- unsigned int mask = (1 << internal::packed_arg_bits) - 1;
- return static_cast<internal::type>((types_ >> shift) & mask);
+ bool is_packed() const { return (desc_ & detail::is_unpacked_bit) == 0; }
+ bool has_named_args() const {
+ return (desc_ & detail::has_named_args_bit) != 0;
}
- friend class internal::arg_map<Context>;
-
- void set_data(const internal::value<Context>* values) { values_ = values; }
- void set_data(const format_arg* args) { args_ = args; }
-
- format_arg do_get(int index) const {
- format_arg arg;
- if (!is_packed()) {
- auto num_args = max_size();
- if (index < num_args) arg = args_[index];
- return arg;
- }
- if (index > internal::max_packed_args) return arg;
- arg.type_ = type(index);
- if (arg.type_ == internal::none_type) return arg;
- internal::value<Context>& val = arg.value_;
- val = values_[index];
- return arg;
+ detail::type type(int index) const {
+ int shift = index * detail::packed_arg_bits;
+ unsigned int mask = (1 << detail::packed_arg_bits) - 1;
+ return static_cast<detail::type>((desc_ >> shift) & mask);
}
+ basic_format_args(unsigned long long desc,
+ const detail::value<Context>* values)
+ : desc_(desc), values_(values) {}
+ basic_format_args(unsigned long long desc, const format_arg* args)
+ : desc_(desc), args_(args) {}
+
public:
- basic_format_args() : types_(0) {}
+ basic_format_args() : desc_(0) {}
/**
\rst
@@ -1284,10 +1872,17 @@ template <typename Context> class basic_format_args {
\endrst
*/
template <typename... Args>
- basic_format_args(const format_arg_store<Context, Args...>& store)
- : types_(store.types) {
- set_data(store.data_);
- }
+ FMT_INLINE basic_format_args(const format_arg_store<Context, Args...>& store)
+ : basic_format_args(store.desc, store.data_.args()) {}
+
+ /**
+ \rst
+ Constructs a `basic_format_args` object from
+ `~fmt::dynamic_format_arg_store`.
+ \endrst
+ */
+ FMT_INLINE basic_format_args(const dynamic_format_arg_store<Context>& store)
+ : basic_format_args(store.get_types(), store.data()) {}
/**
\rst
@@ -1295,22 +1890,42 @@ template <typename Context> class basic_format_args {
\endrst
*/
basic_format_args(const format_arg* args, int count)
- : types_(internal::is_unpacked_bit | internal::to_unsigned(count)) {
- set_data(args);
- }
+ : basic_format_args(detail::is_unpacked_bit | detail::to_unsigned(count),
+ args) {}
- /** Returns the argument at specified index. */
- format_arg get(int index) const {
- format_arg arg = do_get(index);
- if (arg.type_ == internal::named_arg_type)
- arg = arg.value_.named_arg->template deserialize<Context>();
+ /** Returns the argument with the specified id. */
+ format_arg get(int id) const {
+ format_arg arg;
+ if (!is_packed()) {
+ if (id < max_size()) arg = args_[id];
+ return arg;
+ }
+ if (id >= detail::max_packed_args) return arg;
+ arg.type_ = type(id);
+ if (arg.type_ == detail::type::none_type) return arg;
+ arg.value_ = values_[id];
return arg;
}
+ template <typename Char> format_arg get(basic_string_view<Char> name) const {
+ int id = get_id(name);
+ return id >= 0 ? get(id) : format_arg();
+ }
+
+ template <typename Char> int get_id(basic_string_view<Char> name) const {
+ if (!has_named_args()) return -1;
+ const auto& named_args =
+ (is_packed() ? values_[-1] : args_[-1].value_).named_args;
+ for (size_t i = 0; i < named_args.size; ++i) {
+ if (named_args.data[i].name == name) return named_args.data[i].id;
+ }
+ return -1;
+ }
+
int max_size() const {
- unsigned long long max_packed = internal::max_packed_args;
+ unsigned long long max_packed = detail::max_packed_args;
return static_cast<int>(is_packed() ? max_packed
- : types_ & ~internal::is_unpacked_bit);
+ : desc_ & ~detail::is_unpacked_bit);
}
};
@@ -1318,145 +1933,121 @@ template <typename Context> class basic_format_args {
// It is a separate type rather than an alias to make symbols readable.
struct format_args : basic_format_args<format_context> {
template <typename... Args>
- format_args(Args&&... args)
- : basic_format_args<format_context>(std::forward<Args>(args)...) {}
+ FMT_INLINE format_args(const Args&... args) : basic_format_args(args...) {}
};
struct wformat_args : basic_format_args<wformat_context> {
- template <typename... Args>
- wformat_args(Args&&... args)
- : basic_format_args<wformat_context>(std::forward<Args>(args)...) {}
+ using basic_format_args::basic_format_args;
};
-template <typename Container> struct is_contiguous : std::false_type {};
+namespace detail {
+
+template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+std::basic_string<Char> vformat(
+ basic_string_view<Char> format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args);
+
+FMT_API std::string vformat(string_view format_str, format_args args);
template <typename Char>
-struct is_contiguous<std::basic_string<Char>> : std::true_type {};
-
-template <typename Char>
-struct is_contiguous<internal::buffer<Char>> : std::true_type {};
-
-namespace internal {
-
-template <typename OutputIt>
-struct is_contiguous_back_insert_iterator : std::false_type {};
-template <typename Container>
-struct is_contiguous_back_insert_iterator<std::back_insert_iterator<Container>>
- : is_contiguous<Container> {};
-
-template <typename Char> struct named_arg_base {
- basic_string_view<Char> name;
-
- // Serialized value<context>.
- mutable char data[sizeof(basic_format_arg<buffer_context<Char>>)];
-
- named_arg_base(basic_string_view<Char> nm) : name(nm) {}
-
- template <typename Context> basic_format_arg<Context> deserialize() const {
- basic_format_arg<Context> arg;
- std::memcpy(&arg, data, sizeof(basic_format_arg<Context>));
- return arg;
- }
-};
-
-template <typename T, typename Char> struct named_arg : named_arg_base<Char> {
- const T& value;
-
- named_arg(basic_string_view<Char> name, const T& val)
- : named_arg_base<Char>(name), value(val) {}
-};
-
-template <typename..., typename S, FMT_ENABLE_IF(!is_compile_string<S>::value)>
-inline void check_format_string(const S&) {
-#if defined(FMT_ENFORCE_COMPILE_STRING)
- static_assert(is_compile_string<S>::value,
- "FMT_ENFORCE_COMPILE_STRING requires all format strings to "
- "utilize FMT_STRING() or fmt().");
-#endif
-}
-template <typename..., typename S, FMT_ENABLE_IF(is_compile_string<S>::value)>
-void check_format_string(S);
-
-struct view {};
-template <bool...> struct bool_pack;
-template <bool... Args>
-using all_true =
- std::is_same<bool_pack<Args..., true>, bool_pack<true, Args...>>;
-
-template <typename... Args, typename S, typename Char = char_t<S>>
-inline format_arg_store<buffer_context<Char>, remove_reference_t<Args>...>
-make_args_checked(const S& format_str,
- const remove_reference_t<Args>&... args) {
- static_assert(all_true<(!std::is_base_of<view, remove_reference_t<Args>>() ||
- !std::is_reference<Args>())...>::value,
- "passing views as lvalues is disallowed");
- check_format_string<remove_const_t<remove_reference_t<Args>>...>(format_str);
- return {args...};
-}
-
-template <typename Char>
-std::basic_string<Char> vformat(basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args);
-
-template <typename Char>
-typename buffer_context<Char>::iterator vformat_to(
+void vformat_to(
buffer<Char>& buf, basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args);
-} // namespace internal
+ basic_format_args<FMT_BUFFER_CONTEXT(type_identity_t<Char>)> args,
+ detail::locale_ref loc = {});
-/**
- \rst
- Returns a named argument to be used in a formatting function.
+template <typename Char, typename Args,
+ FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+inline void vprint_mojibake(std::FILE*, basic_string_view<Char>, const Args&) {}
- The named argument holds a reference and does not extend the lifetime
- of its arguments.
- Consequently, a dangling reference can accidentally be created.
- The user should take care to only pass this function temporaries when
- the named argument is itself a temporary, as per the following example.
-
- **Example**::
-
- fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23));
- \endrst
- */
-template <typename S, typename T, typename Char = char_t<S>>
-inline internal::named_arg<T, Char> arg(const S& name, const T& arg) {
- static_assert(internal::is_string<S>::value, "");
- return {name, arg};
-}
-
-// Disable nested named arguments, e.g. ``arg("a", arg("b", 42))``.
-template <typename S, typename T, typename Char>
-void arg(S, internal::named_arg<T, Char>) = delete;
+FMT_API void vprint_mojibake(std::FILE*, string_view, format_args);
+#ifndef _WIN32
+inline void vprint_mojibake(std::FILE*, string_view, format_args) {}
+#endif
+} // namespace detail
/** Formats a string and writes the output to ``out``. */
// GCC 8 and earlier cannot handle std::back_insert_iterator<Container> with
// vformat_to<ArgFormatter>(...) overload, so SFINAE on iterator type instead.
template <typename OutputIt, typename S, typename Char = char_t<S>,
- FMT_ENABLE_IF(
- internal::is_contiguous_back_insert_iterator<OutputIt>::value)>
-OutputIt vformat_to(OutputIt out, const S& format_str,
- basic_format_args<buffer_context<Char>> args) {
- using container = remove_reference_t<decltype(internal::get_container(out))>;
- internal::container_buffer<container> buf((internal::get_container(out)));
- internal::vformat_to(buf, to_string_view(format_str), args);
- return out;
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
+OutputIt vformat_to(
+ OutputIt out, const S& format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out));
+ detail::vformat_to(buf, to_string_view(format_str), args);
+ return detail::get_iterator(buf);
}
-template <typename Container, typename S, typename... Args,
- FMT_ENABLE_IF(
- is_contiguous<Container>::value&& internal::is_string<S>::value)>
-inline std::back_insert_iterator<Container> format_to(
- std::back_insert_iterator<Container> out, const S& format_str,
- Args&&... args) {
- return vformat_to(
- out, to_string_view(format_str),
- {internal::make_args_checked<Args...>(format_str, args...)});
+/**
+ \rst
+ Formats arguments, writes the result to the output iterator ``out`` and returns
+ the iterator past the end of the output range.
+
+ **Example**::
+
+ std::vector<char> out;
+ fmt::format_to(std::back_inserter(out), "{}", 42);
+ \endrst
+ */
+// We cannot use FMT_ENABLE_IF because of a bug in gcc 8.3.
+template <typename OutputIt, typename S, typename... Args,
+ bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value>
+inline auto format_to(OutputIt out, const S& format_str, Args&&... args) ->
+ typename std::enable_if<enable, OutputIt>::type {
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return vformat_to(out, to_string_view(format_str), vargs);
+}
+
+template <typename OutputIt> struct format_to_n_result {
+ /** Iterator past the end of the output range. */
+ OutputIt out;
+ /** Total (not truncated) output size. */
+ size_t size;
+};
+
+template <typename OutputIt, typename Char, typename... Args,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
+inline format_to_n_result<OutputIt> vformat_to_n(
+ OutputIt out, size_t n, basic_string_view<Char> format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ detail::iterator_buffer<OutputIt, Char, detail::fixed_buffer_traits> buf(out,
+ n);
+ detail::vformat_to(buf, format_str, args);
+ return {buf.out(), buf.count()};
+}
+
+/**
+ \rst
+ Formats arguments, writes up to ``n`` characters of the result to the output
+ iterator ``out`` and returns the total output size and the iterator past the
+ end of the output range.
+ \endrst
+ */
+template <typename OutputIt, typename S, typename... Args,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char_t<S>>::value)>
+inline format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
+ const S& format_str,
+ const Args&... args) {
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return vformat_to_n(out, n, to_string_view(format_str), vargs);
+}
+
+/**
+ Returns the number of characters in the output of
+ ``format(format_str, args...)``.
+ */
+template <typename... Args>
+inline size_t formatted_size(string_view format_str, Args&&... args) {
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ detail::counting_buffer<> buf;
+ detail::vformat_to(buf, format_str, vargs);
+ return buf.count();
}
template <typename S, typename Char = char_t<S>>
-inline std::basic_string<Char> vformat(
- const S& format_str, basic_format_args<buffer_context<Char>> args) {
- return internal::vformat(to_string_view(format_str), args);
+FMT_INLINE std::basic_string<Char> vformat(
+ const S& format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ return detail::vformat(to_string_view(format_str), args);
}
/**
@@ -1472,47 +2063,51 @@ inline std::basic_string<Char> vformat(
// Pass char_t as a default template parameter instead of using
// std::basic_string<char_t<S>> to reduce the symbol size.
template <typename S, typename... Args, typename Char = char_t<S>>
-inline std::basic_string<Char> format(const S& format_str, Args&&... args) {
- return internal::vformat(
- to_string_view(format_str),
- {internal::make_args_checked<Args...>(format_str, args...)});
+FMT_INLINE std::basic_string<Char> format(const S& format_str, Args&&... args) {
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return detail::vformat(to_string_view(format_str), vargs);
}
-FMT_API void vprint(std::FILE* f, string_view format_str, format_args args);
-FMT_API void vprint(string_view format_str, format_args args);
+FMT_API void vprint(string_view, format_args);
+FMT_API void vprint(std::FILE*, string_view, format_args);
/**
\rst
- Prints formatted data to the file *f*. For wide format strings,
- *f* should be in wide-oriented mode set via ``fwide(f, 1)`` or
- ``_setmode(_fileno(f), _O_U8TEXT)`` on Windows.
+ Formats ``args`` according to specifications in ``format_str`` and writes the
+ output to the file ``f``. Strings are assumed to be Unicode-encoded unless the
+ ``FMT_UNICODE`` macro is set to 0.
**Example**::
fmt::print(stderr, "Don't {}!", "panic");
\endrst
*/
-template <typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
+template <typename S, typename... Args, typename Char = char_t<S>>
inline void print(std::FILE* f, const S& format_str, Args&&... args) {
- vprint(f, to_string_view(format_str),
- internal::make_args_checked<Args...>(format_str, args...));
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return detail::is_unicode<Char>()
+ ? vprint(f, to_string_view(format_str), vargs)
+ : detail::vprint_mojibake(f, to_string_view(format_str), vargs);
}
/**
\rst
- Prints formatted data to ``stdout``.
+ Formats ``args`` according to specifications in ``format_str`` and writes
+ the output to ``stdout``. Strings are assumed to be Unicode-encoded unless
+ the ``FMT_UNICODE`` macro is set to 0.
**Example**::
fmt::print("Elapsed time: {0:.2f} seconds", 1.23);
\endrst
*/
-template <typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
+template <typename S, typename... Args, typename Char = char_t<S>>
inline void print(const S& format_str, Args&&... args) {
- vprint(to_string_view(format_str),
- internal::make_args_checked<Args...>(format_str, args...));
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return detail::is_unicode<Char>()
+ ? vprint(to_string_view(format_str), vargs)
+ : detail::vprint_mojibake(stdout, to_string_view(format_str),
+ vargs);
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/format-inl.h b/Externals/fmt/include/fmt/format-inl.h
index 72b304665d..b7cb3209c8 100755
--- a/Externals/fmt/include/fmt/format-inl.h
+++ b/Externals/fmt/include/fmt/format-inl.h
@@ -8,56 +8,40 @@
#ifndef FMT_FORMAT_INL_H_
#define FMT_FORMAT_INL_H_
-#include "format.h"
-
#include <cassert>
#include <cctype>
#include <climits>
#include <cmath>
#include <cstdarg>
-#include <cstring> // for std::memmove
+#include <cstring> // std::memmove
#include <cwchar>
-#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
+#include <exception>
+
+#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
# include <locale>
#endif
-#if FMT_USE_WINDOWS_H
-# if !defined(FMT_HEADER_ONLY) && !defined(WIN32_LEAN_AND_MEAN)
-# define WIN32_LEAN_AND_MEAN
-# endif
-# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
-# include <windows.h>
-# else
-# define NOMINMAX
-# include <windows.h>
-# undef NOMINMAX
-# endif
+#ifdef _WIN32
+# include <io.h> // _isatty
#endif
-#if FMT_EXCEPTIONS
-# define FMT_TRY try
-# define FMT_CATCH(x) catch (x)
-#else
-# define FMT_TRY if (true)
-# define FMT_CATCH(x) if (false)
-#endif
-
-#ifdef _MSC_VER
-# pragma warning(push)
-# pragma warning(disable : 4702) // unreachable code
-#endif
+#include "format.h"
// Dummy implementations of strerror_r and strerror_s called if corresponding
// system functions are not available.
-inline fmt::internal::null<> strerror_r(int, char*, ...) { return {}; }
-inline fmt::internal::null<> strerror_s(char*, std::size_t, ...) { return {}; }
+inline fmt::detail::null<> strerror_r(int, char*, ...) { return {}; }
+inline fmt::detail::null<> strerror_s(char*, size_t, ...) { return {}; }
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
FMT_FUNC void assert_fail(const char* file, int line, const char* message) {
- print(stderr, "{}:{}: assertion failed: {}", file, line, message);
- std::abort();
+ // Use unchecked std::fprintf to avoid triggering another assertion when
+ // writing to stderr fails
+ std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
+ // Chosen instead of std::abort to satisfy Clang in CUDA mode during device
+ // code pass.
+ std::terminate();
}
#ifndef _MSC_VER
@@ -73,8 +57,6 @@ inline int fmt_snprintf(char* buffer, size_t size, const char* format, ...) {
# define FMT_SNPRINTF fmt_snprintf
#endif // _MSC_VER
-using format_func = void (*)(internal::buffer<char>&, int, string_view);
-
// A portable thread-safe version of strerror.
// Sets buffer to point to a string describing the error code.
// This can be either a pointer to a string stored in buffer,
@@ -84,15 +66,15 @@ using format_func = void (*)(internal::buffer<char>&, int, string_view);
// ERANGE - buffer is not large enough to store the error message
// other - failure
// Buffer should be at least of size 1.
-FMT_FUNC int safe_strerror(int error_code, char*& buffer,
- std::size_t buffer_size) FMT_NOEXCEPT {
+inline int safe_strerror(int error_code, char*& buffer,
+ size_t buffer_size) FMT_NOEXCEPT {
FMT_ASSERT(buffer != nullptr && buffer_size != 0, "invalid buffer");
class dispatcher {
private:
int error_code_;
char*& buffer_;
- std::size_t buffer_size_;
+ size_t buffer_size_;
// A noop assignment operator to avoid bogus warnings.
void operator=(const dispatcher&) {}
@@ -104,6 +86,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
}
// Handle the result of GNU-specific version of strerror_r.
+ FMT_MAYBE_UNUSED
int handle(char* message) {
// If the buffer is full then the message is probably truncated.
if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
@@ -113,11 +96,13 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
}
// Handle the case when strerror_r is not available.
- int handle(internal::null<>) {
+ FMT_MAYBE_UNUSED
+ int handle(detail::null<>) {
return fallback(strerror_s(buffer_, buffer_size_, error_code_));
}
// Fallback to strerror_s when strerror_r is not available.
+ FMT_MAYBE_UNUSED
int fallback(int result) {
// If the buffer is full then the message is probably truncated.
return result == 0 && strlen(buffer_) == buffer_size_ - 1 ? ERANGE
@@ -126,7 +111,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
#if !FMT_MSC_VER
// Fallback to strerror if strerror_r and strerror_s are not available.
- int fallback(internal::null<>) {
+ int fallback(detail::null<>) {
errno = 0;
buffer_ = strerror(error_code_);
return errno;
@@ -134,7 +119,7 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
#endif
public:
- dispatcher(int err_code, char*& buf, std::size_t buf_size)
+ dispatcher(int err_code, char*& buf, size_t buf_size)
: error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
int run() { return handle(strerror_r(error_code_, buffer_, buffer_size_)); }
@@ -142,41 +127,29 @@ FMT_FUNC int safe_strerror(int error_code, char*& buffer,
return dispatcher(error_code, buffer, buffer_size).run();
}
-FMT_FUNC void format_error_code(internal::buffer<char>& out, int error_code,
+FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
// Report error code making sure that the output fits into
// inline_buffer_size to avoid dynamic memory allocation and potential
// bad_alloc.
- out.resize(0);
+ out.try_resize(0);
static const char SEP[] = ": ";
static const char ERROR_STR[] = "error ";
// Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
- std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
+ size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
auto abs_value = static_cast<uint32_or_64_or_128_t<int>>(error_code);
- if (internal::is_negative(error_code)) {
+ if (detail::is_negative(error_code)) {
abs_value = 0 - abs_value;
++error_code_size;
}
- error_code_size += internal::to_unsigned(internal::count_digits(abs_value));
- internal::writer w(out);
- if (message.size() <= inline_buffer_size - error_code_size) {
- w.write(message);
- w.write(SEP);
- }
- w.write(ERROR_STR);
- w.write(error_code);
+ error_code_size += detail::to_unsigned(detail::count_digits(abs_value));
+ auto it = buffer_appender<char>(out);
+ if (message.size() <= inline_buffer_size - error_code_size)
+ format_to(it, "{}{}", message, SEP);
+ format_to(it, "{}{}", ERROR_STR, error_code);
assert(out.size() <= inline_buffer_size);
}
-// A wrapper around fwrite that throws on error.
-FMT_FUNC void fwrite_fully(const void* ptr, size_t size, size_t count,
- FILE* stream) {
- size_t written = std::fwrite(ptr, size, count, stream);
- if (written < count) {
- FMT_THROW(system_error(errno, "cannot write to file"));
- }
-}
-
FMT_FUNC void report_error(format_func func, int error_code,
string_view message) FMT_NOEXCEPT {
memory_buffer full_message;
@@ -185,10 +158,17 @@ FMT_FUNC void report_error(format_func func, int error_code,
(void)std::fwrite(full_message.data(), full_message.size(), 1, stderr);
std::fputc('\n', stderr);
}
-} // namespace internal
+
+// A wrapper around fwrite that throws on error.
+inline void fwrite_fully(const void* ptr, size_t size, size_t count,
+ FILE* stream) {
+ size_t written = std::fwrite(ptr, size, count, stream);
+ if (written < count) FMT_THROW(system_error(errno, "cannot write to file"));
+}
+} // namespace detail
#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
-namespace internal {
+namespace detail {
template <typename Locale>
locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
@@ -211,18 +191,16 @@ template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref loc) {
return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>())
.decimal_point();
}
-} // namespace internal
+} // namespace detail
#else
template <typename Char>
-FMT_FUNC std::string internal::grouping_impl(locale_ref) {
+FMT_FUNC std::string detail::grouping_impl(locale_ref) {
return "\03";
}
-template <typename Char>
-FMT_FUNC Char internal::thousands_sep_impl(locale_ref) {
+template <typename Char> FMT_FUNC Char detail::thousands_sep_impl(locale_ref) {
return FMT_STATIC_THOUSANDS_SEPARATOR;
}
-template <typename Char>
-FMT_FUNC Char internal::decimal_point_impl(locale_ref) {
+template <typename Char> FMT_FUNC Char detail::decimal_point_impl(locale_ref) {
return '.';
}
#endif
@@ -239,9 +217,9 @@ FMT_FUNC void system_error::init(int err_code, string_view format_str,
base = std::runtime_error(to_string(buffer));
}
-namespace internal {
+namespace detail {
-template <> FMT_FUNC int count_digits<4>(internal::fallback_uintptr n) {
+template <> FMT_FUNC int count_digits<4>(detail::fallback_uintptr n) {
// fallback_uintptr is always stored in little endian.
int i = static_cast<int>(sizeof(void*)) - 1;
while (i > 0 && n.value[i] == 0) --i;
@@ -250,12 +228,24 @@ template <> FMT_FUNC int count_digits<4>(internal::fallback_uintptr n) {
}
template <typename T>
-const char basic_data<T>::digits[] =
- "0001020304050607080910111213141516171819"
- "2021222324252627282930313233343536373839"
- "4041424344454647484950515253545556575859"
- "6061626364656667686970717273747576777879"
- "8081828384858687888990919293949596979899";
+const typename basic_data<T>::digit_pair basic_data<T>::digits[] = {
+ {'0', '0'}, {'0', '1'}, {'0', '2'}, {'0', '3'}, {'0', '4'}, {'0', '5'},
+ {'0', '6'}, {'0', '7'}, {'0', '8'}, {'0', '9'}, {'1', '0'}, {'1', '1'},
+ {'1', '2'}, {'1', '3'}, {'1', '4'}, {'1', '5'}, {'1', '6'}, {'1', '7'},
+ {'1', '8'}, {'1', '9'}, {'2', '0'}, {'2', '1'}, {'2', '2'}, {'2', '3'},
+ {'2', '4'}, {'2', '5'}, {'2', '6'}, {'2', '7'}, {'2', '8'}, {'2', '9'},
+ {'3', '0'}, {'3', '1'}, {'3', '2'}, {'3', '3'}, {'3', '4'}, {'3', '5'},
+ {'3', '6'}, {'3', '7'}, {'3', '8'}, {'3', '9'}, {'4', '0'}, {'4', '1'},
+ {'4', '2'}, {'4', '3'}, {'4', '4'}, {'4', '5'}, {'4', '6'}, {'4', '7'},
+ {'4', '8'}, {'4', '9'}, {'5', '0'}, {'5', '1'}, {'5', '2'}, {'5', '3'},
+ {'5', '4'}, {'5', '5'}, {'5', '6'}, {'5', '7'}, {'5', '8'}, {'5', '9'},
+ {'6', '0'}, {'6', '1'}, {'6', '2'}, {'6', '3'}, {'6', '4'}, {'6', '5'},
+ {'6', '6'}, {'6', '7'}, {'6', '8'}, {'6', '9'}, {'7', '0'}, {'7', '1'},
+ {'7', '2'}, {'7', '3'}, {'7', '4'}, {'7', '5'}, {'7', '6'}, {'7', '7'},
+ {'7', '8'}, {'7', '9'}, {'8', '0'}, {'8', '1'}, {'8', '2'}, {'8', '3'},
+ {'8', '4'}, {'8', '5'}, {'8', '6'}, {'8', '7'}, {'8', '8'}, {'8', '9'},
+ {'9', '0'}, {'9', '1'}, {'9', '2'}, {'9', '3'}, {'9', '4'}, {'9', '5'},
+ {'9', '6'}, {'9', '7'}, {'9', '8'}, {'9', '9'}};
template <typename T>
const char basic_data<T>::hex_digits[] = "0123456789abcdef";
@@ -271,18 +261,18 @@ const uint64_t basic_data<T>::powers_of_10_64[] = {
10000000000000000000ULL};
template <typename T>
-const uint32_t basic_data<T>::zero_or_powers_of_10_32[] = {0,
+const uint32_t basic_data<T>::zero_or_powers_of_10_32[] = {0, 0,
FMT_POWERS_OF_10(1)};
template <typename T>
const uint64_t basic_data<T>::zero_or_powers_of_10_64[] = {
- 0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ULL),
+ 0, 0, FMT_POWERS_OF_10(1), FMT_POWERS_OF_10(1000000000ULL),
10000000000000000000ULL};
// Normalized 64-bit significands of pow(10, k), for k = -348, -340, ..., 340.
// These are generated by support/compute-powers.py.
template <typename T>
-const uint64_t basic_data<T>::pow10_significands[] = {
+const uint64_t basic_data<T>::grisu_pow10_significands[] = {
0xfa8fd5a0081c0288, 0xbaaee17fa23ebf76, 0x8b16fb203055ac76,
0xcf42894a5dce35ea, 0x9a6bb0aa55653b2d, 0xe61acf033d1a45df,
0xab70fe17c79ac6ca, 0xff77b1fcbebcdc4f, 0xbe5691ef416bd60c,
@@ -317,7 +307,7 @@ const uint64_t basic_data<T>::pow10_significands[] = {
// Binary exponents of pow(10, k), for k = -348, -340, ..., 340, corresponding
// to significands above.
template <typename T>
-const int16_t basic_data<T>::pow10_exponents[] = {
+const int16_t basic_data<T>::grisu_pow10_exponents[] = {
-1220, -1193, -1166, -1140, -1113, -1087, -1060, -1034, -1007, -980, -954,
-927, -901, -874, -847, -821, -794, -768, -741, -715, -688, -661,
-635, -608, -582, -555, -529, -502, -475, -449, -422, -396, -369,
@@ -327,6 +317,744 @@ const int16_t basic_data<T>::pow10_exponents[] = {
534, 561, 588, 614, 641, 667, 694, 720, 747, 774, 800,
827, 853, 880, 907, 933, 960, 986, 1013, 1039, 1066};
+template <typename T>
+const divtest_table_entry<uint32_t> basic_data<T>::divtest_table_for_pow5_32[] =
+ {{0x00000001, 0xffffffff}, {0xcccccccd, 0x33333333},
+ {0xc28f5c29, 0x0a3d70a3}, {0x26e978d5, 0x020c49ba},
+ {0x3afb7e91, 0x0068db8b}, {0x0bcbe61d, 0x0014f8b5},
+ {0x68c26139, 0x000431bd}, {0xae8d46a5, 0x0000d6bf},
+ {0x22e90e21, 0x00002af3}, {0x3a2e9c6d, 0x00000897},
+ {0x3ed61f49, 0x000001b7}};
+
+template <typename T>
+const divtest_table_entry<uint64_t> basic_data<T>::divtest_table_for_pow5_64[] =
+ {{0x0000000000000001, 0xffffffffffffffff},
+ {0xcccccccccccccccd, 0x3333333333333333},
+ {0x8f5c28f5c28f5c29, 0x0a3d70a3d70a3d70},
+ {0x1cac083126e978d5, 0x020c49ba5e353f7c},
+ {0xd288ce703afb7e91, 0x0068db8bac710cb2},
+ {0x5d4e8fb00bcbe61d, 0x0014f8b588e368f0},
+ {0x790fb65668c26139, 0x000431bde82d7b63},
+ {0xe5032477ae8d46a5, 0x0000d6bf94d5e57a},
+ {0xc767074b22e90e21, 0x00002af31dc46118},
+ {0x8e47ce423a2e9c6d, 0x0000089705f4136b},
+ {0x4fa7f60d3ed61f49, 0x000001b7cdfd9d7b},
+ {0x0fee64690c913975, 0x00000057f5ff85e5},
+ {0x3662e0e1cf503eb1, 0x000000119799812d},
+ {0xa47a2cf9f6433fbd, 0x0000000384b84d09},
+ {0x54186f653140a659, 0x00000000b424dc35},
+ {0x7738164770402145, 0x0000000024075f3d},
+ {0xe4a4d1417cd9a041, 0x000000000734aca5},
+ {0xc75429d9e5c5200d, 0x000000000170ef54},
+ {0xc1773b91fac10669, 0x000000000049c977},
+ {0x26b172506559ce15, 0x00000000000ec1e4},
+ {0xd489e3a9addec2d1, 0x000000000002f394},
+ {0x90e860bb892c8d5d, 0x000000000000971d},
+ {0x502e79bf1b6f4f79, 0x0000000000001e39},
+ {0xdcd618596be30fe5, 0x000000000000060b}};
+
+template <typename T>
+const uint64_t basic_data<T>::dragonbox_pow10_significands_64[] = {
+ 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f,
+ 0xfd87b5f28300ca0e, 0x9e74d1b791e07e49, 0xc612062576589ddb,
+ 0xf79687aed3eec552, 0x9abe14cd44753b53, 0xc16d9a0095928a28,
+ 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb,
+ 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a,
+ 0xe69594bec44de15c, 0x901d7cf73ab0acda, 0xb424dc35095cd810,
+ 0xe12e13424bb40e14, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff,
+ 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd,
+ 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424,
+ 0xd1b71758e219652c, 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b,
+ 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000,
+ 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000,
+ 0xc350000000000000, 0xf424000000000000, 0x9896800000000000,
+ 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000,
+ 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000,
+ 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000,
+ 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000,
+ 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000,
+ 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0,
+ 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940984,
+ 0xa18f07d736b90be5, 0xc9f2c9cd04674ede, 0xfc6f7c4045812296,
+ 0x9dc5ada82b70b59d, 0xc5371912364ce305, 0xf684df56c3e01bc6,
+ 0x9a130b963a6c115c, 0xc097ce7bc90715b3, 0xf0bdc21abb48db20,
+ 0x96769950b50d88f4, 0xbc143fa4e250eb31, 0xeb194f8e1ae525fd,
+ 0x92efd1b8d0cf37be, 0xb7abc627050305ad, 0xe596b7b0c643c719,
+ 0x8f7e32ce7bea5c6f, 0xb35dbf821ae4f38b, 0xe0352f62a19e306e};
+
+template <typename T>
+const uint128_wrapper basic_data<T>::dragonbox_pow10_significands_128[] = {
+#if FMT_USE_FULL_CACHE_DRAGONBOX
+ {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
+ {0x9faacf3df73609b1, 0x77b191618c54e9ad},
+ {0xc795830d75038c1d, 0xd59df5b9ef6a2418},
+ {0xf97ae3d0d2446f25, 0x4b0573286b44ad1e},
+ {0x9becce62836ac577, 0x4ee367f9430aec33},
+ {0xc2e801fb244576d5, 0x229c41f793cda740},
+ {0xf3a20279ed56d48a, 0x6b43527578c11110},
+ {0x9845418c345644d6, 0x830a13896b78aaaa},
+ {0xbe5691ef416bd60c, 0x23cc986bc656d554},
+ {0xedec366b11c6cb8f, 0x2cbfbe86b7ec8aa9},
+ {0x94b3a202eb1c3f39, 0x7bf7d71432f3d6aa},
+ {0xb9e08a83a5e34f07, 0xdaf5ccd93fb0cc54},
+ {0xe858ad248f5c22c9, 0xd1b3400f8f9cff69},
+ {0x91376c36d99995be, 0x23100809b9c21fa2},
+ {0xb58547448ffffb2d, 0xabd40a0c2832a78b},
+ {0xe2e69915b3fff9f9, 0x16c90c8f323f516d},
+ {0x8dd01fad907ffc3b, 0xae3da7d97f6792e4},
+ {0xb1442798f49ffb4a, 0x99cd11cfdf41779d},
+ {0xdd95317f31c7fa1d, 0x40405643d711d584},
+ {0x8a7d3eef7f1cfc52, 0x482835ea666b2573},
+ {0xad1c8eab5ee43b66, 0xda3243650005eed0},
+ {0xd863b256369d4a40, 0x90bed43e40076a83},
+ {0x873e4f75e2224e68, 0x5a7744a6e804a292},
+ {0xa90de3535aaae202, 0x711515d0a205cb37},
+ {0xd3515c2831559a83, 0x0d5a5b44ca873e04},
+ {0x8412d9991ed58091, 0xe858790afe9486c3},
+ {0xa5178fff668ae0b6, 0x626e974dbe39a873},
+ {0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
+ {0x80fa687f881c7f8e, 0x7ce66634bc9d0b9a},
+ {0xa139029f6a239f72, 0x1c1fffc1ebc44e81},
+ {0xc987434744ac874e, 0xa327ffb266b56221},
+ {0xfbe9141915d7a922, 0x4bf1ff9f0062baa9},
+ {0x9d71ac8fada6c9b5, 0x6f773fc3603db4aa},
+ {0xc4ce17b399107c22, 0xcb550fb4384d21d4},
+ {0xf6019da07f549b2b, 0x7e2a53a146606a49},
+ {0x99c102844f94e0fb, 0x2eda7444cbfc426e},
+ {0xc0314325637a1939, 0xfa911155fefb5309},
+ {0xf03d93eebc589f88, 0x793555ab7eba27cb},
+ {0x96267c7535b763b5, 0x4bc1558b2f3458df},
+ {0xbbb01b9283253ca2, 0x9eb1aaedfb016f17},
+ {0xea9c227723ee8bcb, 0x465e15a979c1cadd},
+ {0x92a1958a7675175f, 0x0bfacd89ec191eca},
+ {0xb749faed14125d36, 0xcef980ec671f667c},
+ {0xe51c79a85916f484, 0x82b7e12780e7401b},
+ {0x8f31cc0937ae58d2, 0xd1b2ecb8b0908811},
+ {0xb2fe3f0b8599ef07, 0x861fa7e6dcb4aa16},
+ {0xdfbdcece67006ac9, 0x67a791e093e1d49b},
+ {0x8bd6a141006042bd, 0xe0c8bb2c5c6d24e1},
+ {0xaecc49914078536d, 0x58fae9f773886e19},
+ {0xda7f5bf590966848, 0xaf39a475506a899f},
+ {0x888f99797a5e012d, 0x6d8406c952429604},
+ {0xaab37fd7d8f58178, 0xc8e5087ba6d33b84},
+ {0xd5605fcdcf32e1d6, 0xfb1e4a9a90880a65},
+ {0x855c3be0a17fcd26, 0x5cf2eea09a550680},
+ {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f},
+ {0xd0601d8efc57b08b, 0xf13b94daf124da27},
+ {0x823c12795db6ce57, 0x76c53d08d6b70859},
+ {0xa2cb1717b52481ed, 0x54768c4b0c64ca6f},
+ {0xcb7ddcdda26da268, 0xa9942f5dcf7dfd0a},
+ {0xfe5d54150b090b02, 0xd3f93b35435d7c4d},
+ {0x9efa548d26e5a6e1, 0xc47bc5014a1a6db0},
+ {0xc6b8e9b0709f109a, 0x359ab6419ca1091c},
+ {0xf867241c8cc6d4c0, 0xc30163d203c94b63},
+ {0x9b407691d7fc44f8, 0x79e0de63425dcf1e},
+ {0xc21094364dfb5636, 0x985915fc12f542e5},
+ {0xf294b943e17a2bc4, 0x3e6f5b7b17b2939e},
+ {0x979cf3ca6cec5b5a, 0xa705992ceecf9c43},
+ {0xbd8430bd08277231, 0x50c6ff782a838354},
+ {0xece53cec4a314ebd, 0xa4f8bf5635246429},
+ {0x940f4613ae5ed136, 0x871b7795e136be9a},
+ {0xb913179899f68584, 0x28e2557b59846e40},
+ {0xe757dd7ec07426e5, 0x331aeada2fe589d0},
+ {0x9096ea6f3848984f, 0x3ff0d2c85def7622},
+ {0xb4bca50b065abe63, 0x0fed077a756b53aa},
+ {0xe1ebce4dc7f16dfb, 0xd3e8495912c62895},
+ {0x8d3360f09cf6e4bd, 0x64712dd7abbbd95d},
+ {0xb080392cc4349dec, 0xbd8d794d96aacfb4},
+ {0xdca04777f541c567, 0xecf0d7a0fc5583a1},
+ {0x89e42caaf9491b60, 0xf41686c49db57245},
+ {0xac5d37d5b79b6239, 0x311c2875c522ced6},
+ {0xd77485cb25823ac7, 0x7d633293366b828c},
+ {0x86a8d39ef77164bc, 0xae5dff9c02033198},
+ {0xa8530886b54dbdeb, 0xd9f57f830283fdfd},
+ {0xd267caa862a12d66, 0xd072df63c324fd7c},
+ {0x8380dea93da4bc60, 0x4247cb9e59f71e6e},
+ {0xa46116538d0deb78, 0x52d9be85f074e609},
+ {0xcd795be870516656, 0x67902e276c921f8c},
+ {0x806bd9714632dff6, 0x00ba1cd8a3db53b7},
+ {0xa086cfcd97bf97f3, 0x80e8a40eccd228a5},
+ {0xc8a883c0fdaf7df0, 0x6122cd128006b2ce},
+ {0xfad2a4b13d1b5d6c, 0x796b805720085f82},
+ {0x9cc3a6eec6311a63, 0xcbe3303674053bb1},
+ {0xc3f490aa77bd60fc, 0xbedbfc4411068a9d},
+ {0xf4f1b4d515acb93b, 0xee92fb5515482d45},
+ {0x991711052d8bf3c5, 0x751bdd152d4d1c4b},
+ {0xbf5cd54678eef0b6, 0xd262d45a78a0635e},
+ {0xef340a98172aace4, 0x86fb897116c87c35},
+ {0x9580869f0e7aac0e, 0xd45d35e6ae3d4da1},
+ {0xbae0a846d2195712, 0x8974836059cca10a},
+ {0xe998d258869facd7, 0x2bd1a438703fc94c},
+ {0x91ff83775423cc06, 0x7b6306a34627ddd0},
+ {0xb67f6455292cbf08, 0x1a3bc84c17b1d543},
+ {0xe41f3d6a7377eeca, 0x20caba5f1d9e4a94},
+ {0x8e938662882af53e, 0x547eb47b7282ee9d},
+ {0xb23867fb2a35b28d, 0xe99e619a4f23aa44},
+ {0xdec681f9f4c31f31, 0x6405fa00e2ec94d5},
+ {0x8b3c113c38f9f37e, 0xde83bc408dd3dd05},
+ {0xae0b158b4738705e, 0x9624ab50b148d446},
+ {0xd98ddaee19068c76, 0x3badd624dd9b0958},
+ {0x87f8a8d4cfa417c9, 0xe54ca5d70a80e5d7},
+ {0xa9f6d30a038d1dbc, 0x5e9fcf4ccd211f4d},
+ {0xd47487cc8470652b, 0x7647c32000696720},
+ {0x84c8d4dfd2c63f3b, 0x29ecd9f40041e074},
+ {0xa5fb0a17c777cf09, 0xf468107100525891},
+ {0xcf79cc9db955c2cc, 0x7182148d4066eeb5},
+ {0x81ac1fe293d599bf, 0xc6f14cd848405531},
+ {0xa21727db38cb002f, 0xb8ada00e5a506a7d},
+ {0xca9cf1d206fdc03b, 0xa6d90811f0e4851d},
+ {0xfd442e4688bd304a, 0x908f4a166d1da664},
+ {0x9e4a9cec15763e2e, 0x9a598e4e043287ff},
+ {0xc5dd44271ad3cdba, 0x40eff1e1853f29fe},
+ {0xf7549530e188c128, 0xd12bee59e68ef47d},
+ {0x9a94dd3e8cf578b9, 0x82bb74f8301958cf},
+ {0xc13a148e3032d6e7, 0xe36a52363c1faf02},
+ {0xf18899b1bc3f8ca1, 0xdc44e6c3cb279ac2},
+ {0x96f5600f15a7b7e5, 0x29ab103a5ef8c0ba},
+ {0xbcb2b812db11a5de, 0x7415d448f6b6f0e8},
+ {0xebdf661791d60f56, 0x111b495b3464ad22},
+ {0x936b9fcebb25c995, 0xcab10dd900beec35},
+ {0xb84687c269ef3bfb, 0x3d5d514f40eea743},
+ {0xe65829b3046b0afa, 0x0cb4a5a3112a5113},
+ {0x8ff71a0fe2c2e6dc, 0x47f0e785eaba72ac},
+ {0xb3f4e093db73a093, 0x59ed216765690f57},
+ {0xe0f218b8d25088b8, 0x306869c13ec3532d},
+ {0x8c974f7383725573, 0x1e414218c73a13fc},
+ {0xafbd2350644eeacf, 0xe5d1929ef90898fb},
+ {0xdbac6c247d62a583, 0xdf45f746b74abf3a},
+ {0x894bc396ce5da772, 0x6b8bba8c328eb784},
+ {0xab9eb47c81f5114f, 0x066ea92f3f326565},
+ {0xd686619ba27255a2, 0xc80a537b0efefebe},
+ {0x8613fd0145877585, 0xbd06742ce95f5f37},
+ {0xa798fc4196e952e7, 0x2c48113823b73705},
+ {0xd17f3b51fca3a7a0, 0xf75a15862ca504c6},
+ {0x82ef85133de648c4, 0x9a984d73dbe722fc},
+ {0xa3ab66580d5fdaf5, 0xc13e60d0d2e0ebbb},
+ {0xcc963fee10b7d1b3, 0x318df905079926a9},
+ {0xffbbcfe994e5c61f, 0xfdf17746497f7053},
+ {0x9fd561f1fd0f9bd3, 0xfeb6ea8bedefa634},
+ {0xc7caba6e7c5382c8, 0xfe64a52ee96b8fc1},
+ {0xf9bd690a1b68637b, 0x3dfdce7aa3c673b1},
+ {0x9c1661a651213e2d, 0x06bea10ca65c084f},
+ {0xc31bfa0fe5698db8, 0x486e494fcff30a63},
+ {0xf3e2f893dec3f126, 0x5a89dba3c3efccfb},
+ {0x986ddb5c6b3a76b7, 0xf89629465a75e01d},
+ {0xbe89523386091465, 0xf6bbb397f1135824},
+ {0xee2ba6c0678b597f, 0x746aa07ded582e2d},
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+ {0xe912b9d1478ceb17, 0x7a37cd5601aab85d},
+ {0x91abb422ccb812ee, 0xac62e055c10ab33a},
+ {0xb616a12b7fe617aa, 0x577b986b314d6009},
+ {0xe39c49765fdf9d94, 0xed5a7e85fda0b80b},
+ {0x8e41ade9fbebc27d, 0x14588f13be847307},
+ {0xb1d219647ae6b31c, 0x596eb2d8ae258fc8},
+ {0xde469fbd99a05fe3, 0x6fca5f8ed9aef3bb},
+ {0x8aec23d680043bee, 0x25de7bb9480d5854},
+ {0xada72ccc20054ae9, 0xaf561aa79a10ae6a},
+ {0xd910f7ff28069da4, 0x1b2ba1518094da04},
+ {0x87aa9aff79042286, 0x90fb44d2f05d0842},
+ {0xa99541bf57452b28, 0x353a1607ac744a53},
+ {0xd3fa922f2d1675f2, 0x42889b8997915ce8},
+ {0x847c9b5d7c2e09b7, 0x69956135febada11},
+ {0xa59bc234db398c25, 0x43fab9837e699095},
+ {0xcf02b2c21207ef2e, 0x94f967e45e03f4bb},
+ {0x8161afb94b44f57d, 0x1d1be0eebac278f5},
+ {0xa1ba1ba79e1632dc, 0x6462d92a69731732},
+ {0xca28a291859bbf93, 0x7d7b8f7503cfdcfe},
+ {0xfcb2cb35e702af78, 0x5cda735244c3d43e},
+ {0x9defbf01b061adab, 0x3a0888136afa64a7},
+ {0xc56baec21c7a1916, 0x088aaa1845b8fdd0},
+ {0xf6c69a72a3989f5b, 0x8aad549e57273d45},
+ {0x9a3c2087a63f6399, 0x36ac54e2f678864b},
+ {0xc0cb28a98fcf3c7f, 0x84576a1bb416a7dd},
+ {0xf0fdf2d3f3c30b9f, 0x656d44a2a11c51d5},
+ {0x969eb7c47859e743, 0x9f644ae5a4b1b325},
+ {0xbc4665b596706114, 0x873d5d9f0dde1fee},
+ {0xeb57ff22fc0c7959, 0xa90cb506d155a7ea},
+ {0x9316ff75dd87cbd8, 0x09a7f12442d588f2},
+ {0xb7dcbf5354e9bece, 0x0c11ed6d538aeb2f},
+ {0xe5d3ef282a242e81, 0x8f1668c8a86da5fa},
+ {0x8fa475791a569d10, 0xf96e017d694487bc},
+ {0xb38d92d760ec4455, 0x37c981dcc395a9ac},
+ {0xe070f78d3927556a, 0x85bbe253f47b1417},
+ {0x8c469ab843b89562, 0x93956d7478ccec8e},
+ {0xaf58416654a6babb, 0x387ac8d1970027b2},
+ {0xdb2e51bfe9d0696a, 0x06997b05fcc0319e},
+ {0x88fcf317f22241e2, 0x441fece3bdf81f03},
+ {0xab3c2fddeeaad25a, 0xd527e81cad7626c3},
+ {0xd60b3bd56a5586f1, 0x8a71e223d8d3b074},
+ {0x85c7056562757456, 0xf6872d5667844e49},
+ {0xa738c6bebb12d16c, 0xb428f8ac016561db},
+ {0xd106f86e69d785c7, 0xe13336d701beba52},
+ {0x82a45b450226b39c, 0xecc0024661173473},
+ {0xa34d721642b06084, 0x27f002d7f95d0190},
+ {0xcc20ce9bd35c78a5, 0x31ec038df7b441f4},
+ {0xff290242c83396ce, 0x7e67047175a15271},
+ {0x9f79a169bd203e41, 0x0f0062c6e984d386},
+ {0xc75809c42c684dd1, 0x52c07b78a3e60868},
+ {0xf92e0c3537826145, 0xa7709a56ccdf8a82},
+ {0x9bbcc7a142b17ccb, 0x88a66076400bb691},
+ {0xc2abf989935ddbfe, 0x6acff893d00ea435},
+ {0xf356f7ebf83552fe, 0x0583f6b8c4124d43},
+ {0x98165af37b2153de, 0xc3727a337a8b704a},
+ {0xbe1bf1b059e9a8d6, 0x744f18c0592e4c5c},
+ {0xeda2ee1c7064130c, 0x1162def06f79df73},
+ {0x9485d4d1c63e8be7, 0x8addcb5645ac2ba8},
+ {0xb9a74a0637ce2ee1, 0x6d953e2bd7173692},
+ {0xe8111c87c5c1ba99, 0xc8fa8db6ccdd0437},
+ {0x910ab1d4db9914a0, 0x1d9c9892400a22a2},
+ {0xb54d5e4a127f59c8, 0x2503beb6d00cab4b},
+ {0xe2a0b5dc971f303a, 0x2e44ae64840fd61d},
+ {0x8da471a9de737e24, 0x5ceaecfed289e5d2},
+ {0xb10d8e1456105dad, 0x7425a83e872c5f47},
+ {0xdd50f1996b947518, 0xd12f124e28f77719},
+ {0x8a5296ffe33cc92f, 0x82bd6b70d99aaa6f},
+ {0xace73cbfdc0bfb7b, 0x636cc64d1001550b},
+ {0xd8210befd30efa5a, 0x3c47f7e05401aa4e},
+ {0x8714a775e3e95c78, 0x65acfaec34810a71},
+ {0xa8d9d1535ce3b396, 0x7f1839a741a14d0d},
+ {0xd31045a8341ca07c, 0x1ede48111209a050},
+ {0x83ea2b892091e44d, 0x934aed0aab460432},
+ {0xa4e4b66b68b65d60, 0xf81da84d5617853f},
+ {0xce1de40642e3f4b9, 0x36251260ab9d668e},
+ {0x80d2ae83e9ce78f3, 0xc1d72b7c6b426019},
+ {0xa1075a24e4421730, 0xb24cf65b8612f81f},
+ {0xc94930ae1d529cfc, 0xdee033f26797b627},
+ {0xfb9b7cd9a4a7443c, 0x169840ef017da3b1},
+ {0x9d412e0806e88aa5, 0x8e1f289560ee864e},
+ {0xc491798a08a2ad4e, 0xf1a6f2bab92a27e2},
+ {0xf5b5d7ec8acb58a2, 0xae10af696774b1db},
+ {0x9991a6f3d6bf1765, 0xacca6da1e0a8ef29},
+ {0xbff610b0cc6edd3f, 0x17fd090a58d32af3},
+ {0xeff394dcff8a948e, 0xddfc4b4cef07f5b0},
+ {0x95f83d0a1fb69cd9, 0x4abdaf101564f98e},
+ {0xbb764c4ca7a4440f, 0x9d6d1ad41abe37f1},
+ {0xea53df5fd18d5513, 0x84c86189216dc5ed},
+ {0x92746b9be2f8552c, 0x32fd3cf5b4e49bb4},
+ {0xb7118682dbb66a77, 0x3fbc8c33221dc2a1},
+ {0xe4d5e82392a40515, 0x0fabaf3feaa5334a},
+ {0x8f05b1163ba6832d, 0x29cb4d87f2a7400e},
+ {0xb2c71d5bca9023f8, 0x743e20e9ef511012},
+ {0xdf78e4b2bd342cf6, 0x914da9246b255416},
+ {0x8bab8eefb6409c1a, 0x1ad089b6c2f7548e},
+ {0xae9672aba3d0c320, 0xa184ac2473b529b1},
+ {0xda3c0f568cc4f3e8, 0xc9e5d72d90a2741e},
+ {0x8865899617fb1871, 0x7e2fa67c7a658892},
+ {0xaa7eebfb9df9de8d, 0xddbb901b98feeab7},
+ {0xd51ea6fa85785631, 0x552a74227f3ea565},
+ {0x8533285c936b35de, 0xd53a88958f87275f},
+ {0xa67ff273b8460356, 0x8a892abaf368f137},
+ {0xd01fef10a657842c, 0x2d2b7569b0432d85},
+ {0x8213f56a67f6b29b, 0x9c3b29620e29fc73},
+ {0xa298f2c501f45f42, 0x8349f3ba91b47b8f},
+ {0xcb3f2f7642717713, 0x241c70a936219a73},
+ {0xfe0efb53d30dd4d7, 0xed238cd383aa0110},
+ {0x9ec95d1463e8a506, 0xf4363804324a40aa},
+ {0xc67bb4597ce2ce48, 0xb143c6053edcd0d5},
+ {0xf81aa16fdc1b81da, 0xdd94b7868e94050a},
+ {0x9b10a4e5e9913128, 0xca7cf2b4191c8326},
+ {0xc1d4ce1f63f57d72, 0xfd1c2f611f63a3f0},
+ {0xf24a01a73cf2dccf, 0xbc633b39673c8cec},
+ {0x976e41088617ca01, 0xd5be0503e085d813},
+ {0xbd49d14aa79dbc82, 0x4b2d8644d8a74e18},
+ {0xec9c459d51852ba2, 0xddf8e7d60ed1219e},
+ {0x93e1ab8252f33b45, 0xcabb90e5c942b503},
+ {0xb8da1662e7b00a17, 0x3d6a751f3b936243},
+ {0xe7109bfba19c0c9d, 0x0cc512670a783ad4},
+ {0x906a617d450187e2, 0x27fb2b80668b24c5},
+ {0xb484f9dc9641e9da, 0xb1f9f660802dedf6},
+ {0xe1a63853bbd26451, 0x5e7873f8a0396973},
+ {0x8d07e33455637eb2, 0xdb0b487b6423e1e8},
+ {0xb049dc016abc5e5f, 0x91ce1a9a3d2cda62},
+ {0xdc5c5301c56b75f7, 0x7641a140cc7810fb},
+ {0x89b9b3e11b6329ba, 0xa9e904c87fcb0a9d},
+ {0xac2820d9623bf429, 0x546345fa9fbdcd44},
+ {0xd732290fbacaf133, 0xa97c177947ad4095},
+ {0x867f59a9d4bed6c0, 0x49ed8eabcccc485d},
+ {0xa81f301449ee8c70, 0x5c68f256bfff5a74},
+ {0xd226fc195c6a2f8c, 0x73832eec6fff3111},
+ {0x83585d8fd9c25db7, 0xc831fd53c5ff7eab},
+ {0xa42e74f3d032f525, 0xba3e7ca8b77f5e55},
+ {0xcd3a1230c43fb26f, 0x28ce1bd2e55f35eb},
+ {0x80444b5e7aa7cf85, 0x7980d163cf5b81b3},
+ {0xa0555e361951c366, 0xd7e105bcc332621f},
+ {0xc86ab5c39fa63440, 0x8dd9472bf3fefaa7},
+ {0xfa856334878fc150, 0xb14f98f6f0feb951},
+ {0x9c935e00d4b9d8d2, 0x6ed1bf9a569f33d3},
+ {0xc3b8358109e84f07, 0x0a862f80ec4700c8},
+ {0xf4a642e14c6262c8, 0xcd27bb612758c0fa},
+ {0x98e7e9cccfbd7dbd, 0x8038d51cb897789c},
+ {0xbf21e44003acdd2c, 0xe0470a63e6bd56c3},
+ {0xeeea5d5004981478, 0x1858ccfce06cac74},
+ {0x95527a5202df0ccb, 0x0f37801e0c43ebc8},
+ {0xbaa718e68396cffd, 0xd30560258f54e6ba},
+ {0xe950df20247c83fd, 0x47c6b82ef32a2069},
+ {0x91d28b7416cdd27e, 0x4cdc331d57fa5441},
+ {0xb6472e511c81471d, 0xe0133fe4adf8e952},
+ {0xe3d8f9e563a198e5, 0x58180fddd97723a6},
+ {0x8e679c2f5e44ff8f, 0x570f09eaa7ea7648},
+ {0xb201833b35d63f73, 0x2cd2cc6551e513da},
+ {0xde81e40a034bcf4f, 0xf8077f7ea65e58d1},
+ {0x8b112e86420f6191, 0xfb04afaf27faf782},
+ {0xadd57a27d29339f6, 0x79c5db9af1f9b563},
+ {0xd94ad8b1c7380874, 0x18375281ae7822bc},
+ {0x87cec76f1c830548, 0x8f2293910d0b15b5},
+ {0xa9c2794ae3a3c69a, 0xb2eb3875504ddb22},
+ {0xd433179d9c8cb841, 0x5fa60692a46151eb},
+ {0x849feec281d7f328, 0xdbc7c41ba6bcd333},
+ {0xa5c7ea73224deff3, 0x12b9b522906c0800},
+ {0xcf39e50feae16bef, 0xd768226b34870a00},
+ {0x81842f29f2cce375, 0xe6a1158300d46640},
+ {0xa1e53af46f801c53, 0x60495ae3c1097fd0},
+ {0xca5e89b18b602368, 0x385bb19cb14bdfc4},
+ {0xfcf62c1dee382c42, 0x46729e03dd9ed7b5},
+ {0x9e19db92b4e31ba9, 0x6c07a2c26a8346d1},
+ {0xc5a05277621be293, 0xc7098b7305241885},
+ {0xf70867153aa2db38, 0xb8cbee4fc66d1ea7}
+#else
+ {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
+ {0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
+ {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f},
+ {0x86a8d39ef77164bc, 0xae5dff9c02033198},
+ {0xd98ddaee19068c76, 0x3badd624dd9b0958},
+ {0xafbd2350644eeacf, 0xe5d1929ef90898fb},
+ {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2},
+ {0xe55990879ddcaabd, 0xcc420a6a101d0516},
+ {0xb94470938fa89bce, 0xf808e40e8d5b3e6a},
+ {0x95a8637627989aad, 0xdde7001379a44aa9},
+ {0xf1c90080baf72cb1, 0x5324c68b12dd6339},
+ {0xc350000000000000, 0x0000000000000000},
+ {0x9dc5ada82b70b59d, 0xf020000000000000},
+ {0xfee50b7025c36a08, 0x02f236d04753d5b4},
+ {0xcde6fd5e09abcf26, 0xed4c0226b55e6f86},
+ {0xa6539930bf6bff45, 0x84db8346b786151c},
+ {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b2},
+ {0xd910f7ff28069da4, 0x1b2ba1518094da04},
+ {0xaf58416654a6babb, 0x387ac8d1970027b2},
+ {0x8da471a9de737e24, 0x5ceaecfed289e5d2},
+ {0xe4d5e82392a40515, 0x0fabaf3feaa5334a},
+ {0xb8da1662e7b00a17, 0x3d6a751f3b936243},
+ {0x95527a5202df0ccb, 0x0f37801e0c43ebc8}
+#endif
+};
+
+#if !FMT_USE_FULL_CACHE_DRAGONBOX
+template <typename T>
+const uint64_t basic_data<T>::powers_of_5_64[] = {
+ 0x0000000000000001, 0x0000000000000005, 0x0000000000000019,
+ 0x000000000000007d, 0x0000000000000271, 0x0000000000000c35,
+ 0x0000000000003d09, 0x000000000001312d, 0x000000000005f5e1,
+ 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd,
+ 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9,
+ 0x000000071afd498d, 0x0000002386f26fc1, 0x000000b1a2bc2ec5,
+ 0x000003782dace9d9, 0x00001158e460913d, 0x000056bc75e2d631,
+ 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed,
+ 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9};
+
+template <typename T>
+const uint32_t basic_data<T>::dragonbox_pow10_recovery_errors[] = {
+ 0x50001400, 0x54044100, 0x54014555, 0x55954415, 0x54115555, 0x00000001,
+ 0x50000000, 0x00104000, 0x54010004, 0x05004001, 0x55555544, 0x41545555,
+ 0x54040551, 0x15445545, 0x51555514, 0x10000015, 0x00101100, 0x01100015,
+ 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x04450514, 0x45414110,
+ 0x55555145, 0x50544050, 0x15040155, 0x11054140, 0x50111514, 0x11451454,
+ 0x00400541, 0x00000000, 0x55555450, 0x10056551, 0x10054011, 0x55551014,
+ 0x69514555, 0x05151109, 0x00155555};
+#endif
+
template <typename T>
const char basic_data<T>::foreground_color[] = "\x1b[38;2;";
template <typename T>
@@ -334,6 +1062,10 @@ const char basic_data<T>::background_color[] = "\x1b[48;2;";
template <typename T> const char basic_data<T>::reset_color[] = "\x1b[0m";
template <typename T> const wchar_t basic_data<T>::wreset_color[] = L"\x1b[0m";
template <typename T> const char basic_data<T>::signs[] = {0, '-', '+', ' '};
+template <typename T>
+const char basic_data<T>::left_padding_shifts[] = {31, 31, 0, 1, 0};
+template <typename T>
+const char basic_data<T>::right_padding_shifts[] = {0, 31, 0, 1, 0};
template <typename T> struct bits {
static FMT_CONSTEXPR_DECL const int value =
@@ -356,6 +1088,14 @@ class fp {
private:
using significand_type = uint64_t;
+ template <typename Float>
+ using is_supported_float = bool_constant<sizeof(Float) == sizeof(uint64_t) ||
+ sizeof(Float) == sizeof(uint32_t)>;
+
+ public:
+ significand_type f;
+ int e;
+
// All sizes are in bits.
// Subtract 1 to account for an implicit most significant bit in the
// normalized form.
@@ -363,11 +1103,6 @@ class fp {
std::numeric_limits<double>::digits - 1;
static FMT_CONSTEXPR_DECL const uint64_t implicit_bit =
1ULL << double_significand_size;
-
- public:
- significand_type f;
- int e;
-
static FMT_CONSTEXPR_DECL const int significand_size =
bits<significand_type>::value;
@@ -378,81 +1113,57 @@ class fp {
// errors on platforms where double is not IEEE754.
template <typename Double> explicit fp(Double d) { assign(d); }
- // Normalizes the value converted from double and multiplied by (1 << SHIFT).
- template <int SHIFT> friend fp normalize(fp value) {
- // Handle subnormals.
- const auto shifted_implicit_bit = fp::implicit_bit << SHIFT;
- while ((value.f & shifted_implicit_bit) == 0) {
- value.f <<= 1;
- --value.e;
- }
- // Subtract 1 to account for hidden bit.
- const auto offset =
- fp::significand_size - fp::double_significand_size - SHIFT - 1;
- value.f <<= offset;
- value.e -= offset;
- return value;
- }
-
// Assigns d to this and return true iff predecessor is closer than successor.
- template <typename Double, FMT_ENABLE_IF(sizeof(Double) == sizeof(uint64_t))>
- bool assign(Double d) {
- // Assume double is in the format [sign][exponent][significand].
- using limits = std::numeric_limits<Double>;
+ template <typename Float, FMT_ENABLE_IF(is_supported_float<Float>::value)>
+ bool assign(Float d) {
+ // Assume float is in the format [sign][exponent][significand].
+ using limits = std::numeric_limits<Float>;
+ const int float_significand_size = limits::digits - 1;
const int exponent_size =
- bits<Double>::value - double_significand_size - 1; // -1 for sign
- const uint64_t significand_mask = implicit_bit - 1;
+ bits<Float>::value - float_significand_size - 1; // -1 for sign
+ const uint64_t float_implicit_bit = 1ULL << float_significand_size;
+ const uint64_t significand_mask = float_implicit_bit - 1;
const uint64_t exponent_mask = (~0ULL >> 1) & ~significand_mask;
const int exponent_bias = (1 << exponent_size) - limits::max_exponent - 1;
- auto u = bit_cast<uint64_t>(d);
+ constexpr bool is_double = sizeof(Float) == sizeof(uint64_t);
+ auto u = bit_cast<conditional_t<is_double, uint64_t, uint32_t>>(d);
f = u & significand_mask;
- auto biased_e = (u & exponent_mask) >> double_significand_size;
+ int biased_e =
+ static_cast<int>((u & exponent_mask) >> float_significand_size);
// Predecessor is closer if d is a normalized power of 2 (f == 0) other than
// the smallest normalized number (biased_e > 1).
bool is_predecessor_closer = f == 0 && biased_e > 1;
if (biased_e != 0)
- f += implicit_bit;
+ f += float_implicit_bit;
else
biased_e = 1; // Subnormals use biased exponent 1 (min exponent).
- e = static_cast<int>(biased_e - exponent_bias - double_significand_size);
+ e = biased_e - exponent_bias - float_significand_size;
return is_predecessor_closer;
}
- template <typename Double, FMT_ENABLE_IF(sizeof(Double) != sizeof(uint64_t))>
- bool assign(Double) {
+ template <typename Float, FMT_ENABLE_IF(!is_supported_float<Float>::value)>
+ bool assign(Float) {
*this = fp();
return false;
}
-
- // Assigns d to this together with computing lower and upper boundaries,
- // where a boundary is a value half way between the number and its predecessor
- // (lower) or successor (upper). The upper boundary is normalized and lower
- // has the same exponent but may be not normalized.
- template <typename Double> boundaries assign_with_boundaries(Double d) {
- bool is_lower_closer = assign(d);
- fp lower =
- is_lower_closer ? fp((f << 2) - 1, e - 2) : fp((f << 1) - 1, e - 1);
- // 1 in normalize accounts for the exponent shift above.
- fp upper = normalize<1>(fp((f << 1) + 1, e - 1));
- lower.f <<= lower.e - upper.e;
- return boundaries{lower.f, upper.f};
- }
-
- template <typename Double> boundaries assign_float_with_boundaries(Double d) {
- assign(d);
- constexpr int min_normal_e = std::numeric_limits<float>::min_exponent -
- std::numeric_limits<double>::digits;
- significand_type half_ulp = 1 << (std::numeric_limits<double>::digits -
- std::numeric_limits<float>::digits - 1);
- if (min_normal_e > e) half_ulp <<= min_normal_e - e;
- fp upper = normalize<0>(fp(f + half_ulp, e));
- fp lower = fp(
- f - (half_ulp >> ((f == implicit_bit && e > min_normal_e) ? 1 : 0)), e);
- lower.f <<= lower.e - upper.e;
- return boundaries{lower.f, upper.f};
- }
};
+// Normalizes the value converted from double and multiplied by (1 << SHIFT).
+template <int SHIFT> fp normalize(fp value) {
+ // Handle subnormals.
+ const auto shifted_implicit_bit = fp::implicit_bit << SHIFT;
+ while ((value.f & shifted_implicit_bit) == 0) {
+ value.f <<= 1;
+ --value.e;
+ }
+ // Subtract 1 to account for hidden bit.
+ const auto offset =
+ fp::significand_size - fp::double_significand_size - SHIFT - 1;
+ value.f <<= offset;
+ value.e -= offset;
+ return value;
+}
+
inline bool operator==(fp x, fp y) { return x.f == y.f && x.e == y.e; }
// Computes lhs * rhs / pow(2, 64) rounded to nearest with half-up tie breaking.
@@ -477,14 +1188,13 @@ inline fp operator*(fp x, fp y) { return {multiply(x.f, y.f), x.e + y.e + 64}; }
// Returns a cached power of 10 `c_k = c_k.f * pow(2, c_k.e)` such that its
// (binary) exponent satisfies `min_exponent <= c_k.e <= min_exponent + 28`.
-FMT_FUNC fp get_cached_power(int min_exponent, int& pow10_exponent) {
- const uint64_t one_over_log2_10 = 0x4d104d42; // round(pow(2, 32) / log2(10))
+inline fp get_cached_power(int min_exponent, int& pow10_exponent) {
+ const int shift = 32;
+ const auto significand = static_cast<int64_t>(data::log10_2_significand);
int index = static_cast<int>(
- static_cast<int64_t>(
- (min_exponent + fp::significand_size - 1) * one_over_log2_10 +
- ((uint64_t(1) << 32) - 1) // ceil
- ) >>
- 32 // arithmetic shift
+ ((min_exponent + fp::significand_size - 1) * (significand >> shift) +
+ ((int64_t(1) << shift) - 1)) // ceil
+ >> 32 // arithmetic shift
);
// Decimal exponent of the first (smallest) cached power of 10.
const int first_dec_exp = -348;
@@ -492,7 +1202,8 @@ FMT_FUNC fp get_cached_power(int min_exponent, int& pow10_exponent) {
const int dec_exp_step = 8;
index = (index - first_dec_exp - 1) / dec_exp_step + 1;
pow10_exponent = first_dec_exp + index * dec_exp_step;
- return {data::pow10_significands[index], data::pow10_exponents[index]};
+ return {data::grisu_pow10_significands[index],
+ data::grisu_pow10_exponents[index]};
}
// A simple accumulator to hold the sums of terms in bigint::square if uint128_t
@@ -526,20 +1237,23 @@ class bigint {
basic_memory_buffer<bigit, bigits_capacity> bigits_;
int exp_;
+ bigit operator[](int index) const { return bigits_[to_unsigned(index)]; }
+ bigit& operator[](int index) { return bigits_[to_unsigned(index)]; }
+
static FMT_CONSTEXPR_DECL const int bigit_bits = bits<bigit>::value;
friend struct formatter<bigint>;
void subtract_bigits(int index, bigit other, bigit& borrow) {
- auto result = static_cast<double_bigit>(bigits_[index]) - other - borrow;
- bigits_[index] = static_cast<bigit>(result);
+ auto result = static_cast<double_bigit>((*this)[index]) - other - borrow;
+ (*this)[index] = static_cast<bigit>(result);
borrow = static_cast<bigit>(result >> (bigit_bits * 2 - 1));
}
void remove_leading_zeros() {
int num_bigits = static_cast<int>(bigits_.size()) - 1;
- while (num_bigits > 0 && bigits_[num_bigits] == 0) --num_bigits;
- bigits_.resize(num_bigits + 1);
+ while (num_bigits > 0 && (*this)[num_bigits] == 0) --num_bigits;
+ bigits_.resize(to_unsigned(num_bigits + 1));
}
// Computes *this -= other assuming aligned bigints and *this >= other.
@@ -548,10 +1262,8 @@ class bigint {
FMT_ASSERT(compare(*this, other) >= 0, "");
bigit borrow = 0;
int i = other.exp_ - exp_;
- for (int j = 0, n = static_cast<int>(other.bigits_.size()); j != n;
- ++i, ++j) {
+ for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j)
subtract_bigits(i, other.bigits_[j], borrow);
- }
while (borrow > 0) subtract_bigits(i, 0, borrow);
remove_leading_zeros();
}
@@ -593,14 +1305,15 @@ class bigint {
void operator=(const bigint&) = delete;
void assign(const bigint& other) {
- bigits_.resize(other.bigits_.size());
+ auto size = other.bigits_.size();
+ bigits_.resize(size);
auto data = other.bigits_.data();
- std::copy(data, data + other.bigits_.size(), bigits_.data());
+ std::copy(data, data + size, make_checked(bigits_.data(), size));
exp_ = other.exp_;
}
void assign(uint64_t n) {
- int num_bigits = 0;
+ size_t num_bigits = 0;
do {
bigits_[num_bigits++] = n & ~bigit(0);
n >>= bigit_bits;
@@ -611,7 +1324,7 @@ class bigint {
int num_bigits() const { return static_cast<int>(bigits_.size()) + exp_; }
- bigint& operator<<=(int shift) {
+ FMT_NOINLINE bigint& operator<<=(int shift) {
assert(shift >= 0);
exp_ += shift / bigit_bits;
shift %= bigit_bits;
@@ -641,7 +1354,7 @@ class bigint {
int end = i - j;
if (end < 0) end = 0;
for (; i >= end; --i, --j) {
- bigit lhs_bigit = lhs.bigits_[i], rhs_bigit = rhs.bigits_[j];
+ bigit lhs_bigit = lhs[i], rhs_bigit = rhs[j];
if (lhs_bigit != rhs_bigit) return lhs_bigit > rhs_bigit ? 1 : -1;
}
if (i != j) return i > j ? 1 : -1;
@@ -656,7 +1369,7 @@ class bigint {
if (max_lhs_bigits + 1 < num_rhs_bigits) return -1;
if (max_lhs_bigits > num_rhs_bigits) return 1;
auto get_bigit = [](const bigint& n, int i) -> bigit {
- return i >= n.exp_ && i < n.num_bigits() ? n.bigits_[i - n.exp_] : 0;
+ return i >= n.exp_ && i < n.num_bigits() ? n[i - n.exp_] : 0;
};
double_bigit borrow = 0;
int min_exp = (std::min)((std::min)(lhs1.exp_, lhs2.exp_), rhs.exp_);
@@ -696,7 +1409,7 @@ class bigint {
basic_memory_buffer<bigit, bigits_capacity> n(std::move(bigits_));
int num_bigits = static_cast<int>(bigits_.size());
int num_result_bigits = 2 * num_bigits;
- bigits_.resize(num_result_bigits);
+ bigits_.resize(to_unsigned(num_result_bigits));
using accumulator_t = conditional_t<FMT_USE_INT128, uint128_t, accumulator>;
auto sum = accumulator_t();
for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) {
@@ -706,7 +1419,7 @@ class bigint {
// Most terms are multiplied twice which can be optimized in the future.
sum += static_cast<double_bigit>(n[i]) * n[j];
}
- bigits_[bigit_index] = static_cast<bigit>(sum);
+ (*this)[bigit_index] = static_cast<bigit>(sum);
sum >>= bits<bigit>::value; // Compute the carry.
}
// Do the same for the top half.
@@ -714,7 +1427,7 @@ class bigint {
++bigit_index) {
for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;)
sum += static_cast<double_bigit>(n[i++]) * n[j--];
- bigits_[bigit_index] = static_cast<bigit>(sum);
+ (*this)[bigit_index] = static_cast<bigit>(sum);
sum >>= bits<bigit>::value;
}
--num_result_bigits;
@@ -722,22 +1435,26 @@ class bigint {
exp_ *= 2;
}
+ // If this bigint has a bigger exponent than other, adds trailing zero to make
+ // exponents equal. This simplifies some operations such as subtraction.
+ void align(const bigint& other) {
+ int exp_difference = exp_ - other.exp_;
+ if (exp_difference <= 0) return;
+ int num_bigits = static_cast<int>(bigits_.size());
+ bigits_.resize(to_unsigned(num_bigits + exp_difference));
+ for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j)
+ bigits_[j] = bigits_[i];
+ std::uninitialized_fill_n(bigits_.data(), exp_difference, 0);
+ exp_ -= exp_difference;
+ }
+
// Divides this bignum by divisor, assigning the remainder to this and
// returning the quotient.
int divmod_assign(const bigint& divisor) {
FMT_ASSERT(this != &divisor, "");
if (compare(*this, divisor) < 0) return 0;
- int num_bigits = static_cast<int>(bigits_.size());
- FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1] != 0, "");
- int exp_difference = exp_ - divisor.exp_;
- if (exp_difference > 0) {
- // Align bigints by adding trailing zeros to simplify subtraction.
- bigits_.resize(num_bigits + exp_difference);
- for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j)
- bigits_[j] = bigits_[i];
- std::uninitialized_fill_n(bigits_.data(), exp_difference, 0);
- exp_ -= exp_difference;
- }
+ FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, "");
+ align(divisor);
int quotient = 0;
do {
subtract_aligned(divisor);
@@ -747,7 +1464,7 @@ class bigint {
}
};
-enum round_direction { unknown, up, down };
+enum class round_direction { unknown, up, down };
// Given the divisor (normally a power of 10), the remainder = v % divisor for
// some number v and the error, returns whether v should be rounded up, down, or
@@ -760,13 +1477,13 @@ inline round_direction get_round_direction(uint64_t divisor, uint64_t remainder,
FMT_ASSERT(error < divisor - error, ""); // error * 2 won't overflow.
// Round down if (remainder + error) * 2 <= divisor.
if (remainder <= divisor - remainder && error * 2 <= divisor - remainder * 2)
- return down;
+ return round_direction::down;
// Round up if (remainder - error) * 2 >= divisor.
if (remainder >= error &&
remainder - error >= divisor - (remainder - error)) {
- return up;
+ return round_direction::up;
}
- return unknown;
+ return round_direction::unknown;
}
namespace digits {
@@ -842,8 +1559,7 @@ FMT_ALWAYS_INLINE digits::result grisu_gen_digits(fp value, uint64_t error,
FMT_ASSERT(false, "invalid number of digits");
}
--exp;
- uint64_t remainder =
- (static_cast<uint64_t>(integral) << -one.e) + fractional;
+ auto remainder = (static_cast<uint64_t>(integral) << -one.e) + fractional;
result = handler.on_digit(static_cast<char>('0' + digit),
data::powers_of_10_64[exp] << -one.e, remainder,
error, exp, true);
@@ -853,8 +1569,7 @@ FMT_ALWAYS_INLINE digits::result grisu_gen_digits(fp value, uint64_t error,
for (;;) {
fractional *= 10;
error *= 10;
- char digit =
- static_cast<char>('0' + static_cast<char>(fractional >> -one.e));
+ char digit = static_cast<char>('0' + (fractional >> -one.e));
fractional &= one.f - 1;
--exp;
result = handler.on_digit(digit, one.f, fractional, error, exp, false);
@@ -882,8 +1597,8 @@ struct fixed_handler {
if (precision > 0) return digits::more;
if (precision < 0) return digits::done;
auto dir = get_round_direction(divisor, remainder, error);
- if (dir == unknown) return digits::error;
- buf[size++] = dir == up ? '1' : '0';
+ if (dir == round_direction::unknown) return digits::error;
+ buf[size++] = dir == round_direction::up ? '1' : '0';
return digits::done;
}
@@ -891,6 +1606,7 @@ struct fixed_handler {
uint64_t error, int, bool integral) {
FMT_ASSERT(remainder < divisor, "");
buf[size++] = digit;
+ if (!integral && error >= remainder) return digits::error;
if (size < precision) return digits::more;
if (!integral) {
// Check if error * 2 < divisor with overflow prevention.
@@ -901,7 +1617,8 @@ struct fixed_handler {
FMT_ASSERT(error == 1 && divisor > 2, "");
}
auto dir = get_round_direction(divisor, remainder, error);
- if (dir != up) return dir == down ? digits::done : digits::error;
+ if (dir != round_direction::up)
+ return dir == round_direction::down ? digits::done : digits::error;
++buf[size - 1];
for (int i = size - 1; i > 0 && buf[i] > '9'; --i) {
buf[i] = '0';
@@ -909,59 +1626,684 @@ struct fixed_handler {
}
if (buf[0] > '9') {
buf[0] = '1';
- buf[size++] = '0';
+ if (fixed)
+ buf[size++] = '0';
+ else
+ ++exp10;
}
return digits::done;
}
};
-// The shortest representation digit handler.
-struct grisu_shortest_handler {
- char* buf;
- int size;
- // Distance between scaled value and upper bound (wp_W in Grisu3).
- uint64_t diff;
+// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox.
+namespace dragonbox {
+// Computes 128-bit result of multiplication of two 64-bit unsigned integers.
+FMT_SAFEBUFFERS inline uint128_wrapper umul128(uint64_t x,
+ uint64_t y) FMT_NOEXCEPT {
+#if FMT_USE_INT128
+ return static_cast<uint128_t>(x) * static_cast<uint128_t>(y);
+#elif defined(_MSC_VER) && defined(_M_X64)
+ uint128_wrapper result;
+ result.low_ = _umul128(x, y, &result.high_);
+ return result;
+#else
+ const uint64_t mask = (uint64_t(1) << 32) - uint64_t(1);
- digits::result on_start(uint64_t, uint64_t, uint64_t, int&) {
- return digits::more;
+ uint64_t a = x >> 32;
+ uint64_t b = x & mask;
+ uint64_t c = y >> 32;
+ uint64_t d = y & mask;
+
+ uint64_t ac = a * c;
+ uint64_t bc = b * c;
+ uint64_t ad = a * d;
+ uint64_t bd = b * d;
+
+ uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask);
+
+ return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32),
+ (intermediate << 32) + (bd & mask)};
+#endif
+}
+
+// Computes upper 64 bits of multiplication of two 64-bit unsigned integers.
+FMT_SAFEBUFFERS inline uint64_t umul128_upper64(uint64_t x,
+ uint64_t y) FMT_NOEXCEPT {
+#if FMT_USE_INT128
+ auto p = static_cast<uint128_t>(x) * static_cast<uint128_t>(y);
+ return static_cast<uint64_t>(p >> 64);
+#elif defined(_MSC_VER) && defined(_M_X64)
+ return __umulh(x, y);
+#else
+ return umul128(x, y).high();
+#endif
+}
+
+// Computes upper 64 bits of multiplication of a 64-bit unsigned integer and a
+// 128-bit unsigned integer.
+FMT_SAFEBUFFERS inline uint64_t umul192_upper64(uint64_t x, uint128_wrapper y)
+ FMT_NOEXCEPT {
+ uint128_wrapper g0 = umul128(x, y.high());
+ g0 += umul128_upper64(x, y.low());
+ return g0.high();
+}
+
+// Computes upper 32 bits of multiplication of a 32-bit unsigned integer and a
+// 64-bit unsigned integer.
+inline uint32_t umul96_upper32(uint32_t x, uint64_t y) FMT_NOEXCEPT {
+ return static_cast<uint32_t>(umul128_upper64(x, y));
+}
+
+// Computes middle 64 bits of multiplication of a 64-bit unsigned integer and a
+// 128-bit unsigned integer.
+FMT_SAFEBUFFERS inline uint64_t umul192_middle64(uint64_t x, uint128_wrapper y)
+ FMT_NOEXCEPT {
+ uint64_t g01 = x * y.high();
+ uint64_t g10 = umul128_upper64(x, y.low());
+ return g01 + g10;
+}
+
+// Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a
+// 64-bit unsigned integer.
+inline uint64_t umul96_lower64(uint32_t x, uint64_t y) FMT_NOEXCEPT {
+ return x * y;
+}
+
+// Computes floor(log10(pow(2, e))) for e in [-1700, 1700] using the method from
+// https://fmt.dev/papers/Grisu-Exact.pdf#page=5, section 3.4.
+inline int floor_log10_pow2(int e) FMT_NOEXCEPT {
+ FMT_ASSERT(e <= 1700 && e >= -1700, "too large exponent");
+ const int shift = 22;
+ return (e * static_cast<int>(data::log10_2_significand >> (64 - shift))) >>
+ shift;
+}
+
+// Various fast log computations.
+inline int floor_log2_pow10(int e) FMT_NOEXCEPT {
+ FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent");
+ const uint64_t log2_10_integer_part = 3;
+ const uint64_t log2_10_fractional_digits = 0x5269e12f346e2bf9;
+ const int shift_amount = 19;
+ return (e * static_cast<int>(
+ (log2_10_integer_part << shift_amount) |
+ (log2_10_fractional_digits >> (64 - shift_amount)))) >>
+ shift_amount;
+}
+inline int floor_log10_pow2_minus_log10_4_over_3(int e) FMT_NOEXCEPT {
+ FMT_ASSERT(e <= 1700 && e >= -1700, "too large exponent");
+ const uint64_t log10_4_over_3_fractional_digits = 0x1ffbfc2bbc780375;
+ const int shift_amount = 22;
+ return (e * static_cast<int>(data::log10_2_significand >>
+ (64 - shift_amount)) -
+ static_cast<int>(log10_4_over_3_fractional_digits >>
+ (64 - shift_amount))) >>
+ shift_amount;
+}
+
+// Returns true iff x is divisible by pow(2, exp).
+inline bool divisible_by_power_of_2(uint32_t x, int exp) FMT_NOEXCEPT {
+ FMT_ASSERT(exp >= 1, "");
+ FMT_ASSERT(x != 0, "");
+#ifdef FMT_BUILTIN_CTZ
+ return FMT_BUILTIN_CTZ(x) >= exp;
+#else
+ return exp < num_bits<uint32_t>() && x == ((x >> exp) << exp);
+#endif
+}
+inline bool divisible_by_power_of_2(uint64_t x, int exp) FMT_NOEXCEPT {
+ FMT_ASSERT(exp >= 1, "");
+ FMT_ASSERT(x != 0, "");
+#ifdef FMT_BUILTIN_CTZLL
+ return FMT_BUILTIN_CTZLL(x) >= exp;
+#else
+ return exp < num_bits<uint64_t>()) && x == ((x >> exp) << exp);
+#endif
+}
+
+// Returns true iff x is divisible by pow(5, exp).
+inline bool divisible_by_power_of_5(uint32_t x, int exp) FMT_NOEXCEPT {
+ FMT_ASSERT(exp <= 10, "too large exponent");
+ return x * data::divtest_table_for_pow5_32[exp].mod_inv <=
+ data::divtest_table_for_pow5_32[exp].max_quotient;
+}
+inline bool divisible_by_power_of_5(uint64_t x, int exp) FMT_NOEXCEPT {
+ FMT_ASSERT(exp <= 23, "too large exponent");
+ return x * data::divtest_table_for_pow5_64[exp].mod_inv <=
+ data::divtest_table_for_pow5_64[exp].max_quotient;
+}
+
+// Replaces n by floor(n / pow(5, N)) returning true if and only if n is
+// divisible by pow(5, N).
+// Precondition: n <= 2 * pow(5, N + 1).
+template <int N>
+bool check_divisibility_and_divide_by_pow5(uint32_t& n) FMT_NOEXCEPT {
+ static constexpr struct {
+ uint32_t magic_number;
+ int bits_for_comparison;
+ uint32_t threshold;
+ int shift_amount;
+ } infos[] = {{0xcccd, 16, 0x3333, 18}, {0xa429, 8, 0x0a, 20}};
+ constexpr auto info = infos[N - 1];
+ n *= info.magic_number;
+ const uint32_t comparison_mask = (1u << info.bits_for_comparison) - 1;
+ bool result = (n & comparison_mask) <= info.threshold;
+ n >>= info.shift_amount;
+ return result;
+}
+
+// Computes floor(n / pow(10, N)) for small n and N.
+// Precondition: n <= pow(10, N + 1).
+template <int N> uint32_t small_division_by_pow10(uint32_t n) FMT_NOEXCEPT {
+ static constexpr struct {
+ uint32_t magic_number;
+ int shift_amount;
+ uint32_t divisor_times_10;
+ } infos[] = {{0xcccd, 19, 100}, {0xa3d8, 22, 1000}};
+ constexpr auto info = infos[N - 1];
+ FMT_ASSERT(n <= info.divisor_times_10, "n is too large");
+ return n * info.magic_number >> info.shift_amount;
+}
+
+// Computes floor(n / 10^(kappa + 1)) (float)
+inline uint32_t divide_by_10_to_kappa_plus_1(uint32_t n) FMT_NOEXCEPT {
+ return n / float_info<float>::big_divisor;
+}
+// Computes floor(n / 10^(kappa + 1)) (double)
+inline uint64_t divide_by_10_to_kappa_plus_1(uint64_t n) FMT_NOEXCEPT {
+ return umul128_upper64(n, 0x83126e978d4fdf3c) >> 9;
+}
+
+// Various subroutines using pow10 cache
+template <class T> struct cache_accessor;
+
+template <> struct cache_accessor<float> {
+ using carrier_uint = float_info<float>::carrier_uint;
+ using cache_entry_type = uint64_t;
+
+ static uint64_t get_cached_power(int k) FMT_NOEXCEPT {
+ FMT_ASSERT(k >= float_info<float>::min_k && k <= float_info<float>::max_k,
+ "k is out of range");
+ return data::dragonbox_pow10_significands_64[k - float_info<float>::min_k];
}
- // Decrement the generated number approaching value from above.
- void round(uint64_t d, uint64_t divisor, uint64_t& remainder,
- uint64_t error) {
- while (
- remainder < d && error - remainder >= divisor &&
- (remainder + divisor < d || d - remainder >= remainder + divisor - d)) {
- --buf[size - 1];
- remainder += divisor;
- }
+ static carrier_uint compute_mul(carrier_uint u,
+ const cache_entry_type& cache) FMT_NOEXCEPT {
+ return umul96_upper32(u, cache);
}
- // Implements Grisu's round_weed.
- digits::result on_digit(char digit, uint64_t divisor, uint64_t remainder,
- uint64_t error, int exp, bool integral) {
- buf[size++] = digit;
- if (remainder >= error) return digits::more;
- uint64_t unit = integral ? 1 : data::powers_of_10_64[-exp];
- uint64_t up = (diff - 1) * unit; // wp_Wup
- round(up, divisor, remainder, error);
- uint64_t down = (diff + 1) * unit; // wp_Wdown
- if (remainder < down && error - remainder >= divisor &&
- (remainder + divisor < down ||
- down - remainder > remainder + divisor - down)) {
- return digits::error;
- }
- return 2 * unit <= remainder && remainder <= error - 4 * unit
- ? digits::done
- : digits::error;
+ static uint32_t compute_delta(const cache_entry_type& cache,
+ int beta_minus_1) FMT_NOEXCEPT {
+ return static_cast<uint32_t>(cache >> (64 - 1 - beta_minus_1));
+ }
+
+ static bool compute_mul_parity(carrier_uint two_f,
+ const cache_entry_type& cache,
+ int beta_minus_1) FMT_NOEXCEPT {
+ FMT_ASSERT(beta_minus_1 >= 1, "");
+ FMT_ASSERT(beta_minus_1 < 64, "");
+
+ return ((umul96_lower64(two_f, cache) >> (64 - beta_minus_1)) & 1) != 0;
+ }
+
+ static carrier_uint compute_left_endpoint_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return static_cast<carrier_uint>(
+ (cache - (cache >> (float_info<float>::significand_bits + 2))) >>
+ (64 - float_info<float>::significand_bits - 1 - beta_minus_1));
+ }
+
+ static carrier_uint compute_right_endpoint_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return static_cast<carrier_uint>(
+ (cache + (cache >> (float_info<float>::significand_bits + 1))) >>
+ (64 - float_info<float>::significand_bits - 1 - beta_minus_1));
+ }
+
+ static carrier_uint compute_round_up_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return (static_cast<carrier_uint>(
+ cache >>
+ (64 - float_info<float>::significand_bits - 2 - beta_minus_1)) +
+ 1) /
+ 2;
}
};
+template <> struct cache_accessor<double> {
+ using carrier_uint = float_info<double>::carrier_uint;
+ using cache_entry_type = uint128_wrapper;
+
+ static uint128_wrapper get_cached_power(int k) FMT_NOEXCEPT {
+ FMT_ASSERT(k >= float_info<double>::min_k && k <= float_info<double>::max_k,
+ "k is out of range");
+
+#if FMT_USE_FULL_CACHE_DRAGONBOX
+ return data::dragonbox_pow10_significands_128[k -
+ float_info<double>::min_k];
+#else
+ static const int compression_ratio = 27;
+
+ // Compute base index.
+ int cache_index = (k - float_info<double>::min_k) / compression_ratio;
+ int kb = cache_index * compression_ratio + float_info<double>::min_k;
+ int offset = k - kb;
+
+ // Get base cache.
+ uint128_wrapper base_cache =
+ data::dragonbox_pow10_significands_128[cache_index];
+ if (offset == 0) return base_cache;
+
+ // Compute the required amount of bit-shift.
+ int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset;
+ FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected");
+
+ // Try to recover the real cache.
+ uint64_t pow5 = data::powers_of_5_64[offset];
+ uint128_wrapper recovered_cache = umul128(base_cache.high(), pow5);
+ uint128_wrapper middle_low =
+ umul128(base_cache.low() - (kb < 0 ? 1 : 0), pow5);
+
+ recovered_cache += middle_low.high();
+
+ uint64_t high_to_middle = recovered_cache.high() << (64 - alpha);
+ uint64_t middle_to_low = recovered_cache.low() << (64 - alpha);
+
+ recovered_cache =
+ uint128_wrapper{(recovered_cache.low() >> alpha) | high_to_middle,
+ ((middle_low.low() >> alpha) | middle_to_low)};
+
+ if (kb < 0) recovered_cache += 1;
+
+ // Get error.
+ int error_idx = (k - float_info<double>::min_k) / 16;
+ uint32_t error = (data::dragonbox_pow10_recovery_errors[error_idx] >>
+ ((k - float_info<double>::min_k) % 16) * 2) &
+ 0x3;
+
+ // Add the error back.
+ FMT_ASSERT(recovered_cache.low() + error >= recovered_cache.low(), "");
+ return {recovered_cache.high(), recovered_cache.low() + error};
+#endif
+ }
+
+ static carrier_uint compute_mul(carrier_uint u,
+ const cache_entry_type& cache) FMT_NOEXCEPT {
+ return umul192_upper64(u, cache);
+ }
+
+ static uint32_t compute_delta(cache_entry_type const& cache,
+ int beta_minus_1) FMT_NOEXCEPT {
+ return static_cast<uint32_t>(cache.high() >> (64 - 1 - beta_minus_1));
+ }
+
+ static bool compute_mul_parity(carrier_uint two_f,
+ const cache_entry_type& cache,
+ int beta_minus_1) FMT_NOEXCEPT {
+ FMT_ASSERT(beta_minus_1 >= 1, "");
+ FMT_ASSERT(beta_minus_1 < 64, "");
+
+ return ((umul192_middle64(two_f, cache) >> (64 - beta_minus_1)) & 1) != 0;
+ }
+
+ static carrier_uint compute_left_endpoint_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return (cache.high() -
+ (cache.high() >> (float_info<double>::significand_bits + 2))) >>
+ (64 - float_info<double>::significand_bits - 1 - beta_minus_1);
+ }
+
+ static carrier_uint compute_right_endpoint_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return (cache.high() +
+ (cache.high() >> (float_info<double>::significand_bits + 1))) >>
+ (64 - float_info<double>::significand_bits - 1 - beta_minus_1);
+ }
+
+ static carrier_uint compute_round_up_for_shorter_interval_case(
+ const cache_entry_type& cache, int beta_minus_1) FMT_NOEXCEPT {
+ return ((cache.high() >>
+ (64 - float_info<double>::significand_bits - 2 - beta_minus_1)) +
+ 1) /
+ 2;
+ }
+};
+
+// Various integer checks
+template <class T>
+bool is_left_endpoint_integer_shorter_interval(int exponent) FMT_NOEXCEPT {
+ return exponent >=
+ float_info<
+ T>::case_shorter_interval_left_endpoint_lower_threshold &&
+ exponent <=
+ float_info<T>::case_shorter_interval_left_endpoint_upper_threshold;
+}
+template <class T>
+bool is_endpoint_integer(typename float_info<T>::carrier_uint two_f,
+ int exponent, int minus_k) FMT_NOEXCEPT {
+ if (exponent < float_info<T>::case_fc_pm_half_lower_threshold) return false;
+ // For k >= 0.
+ if (exponent <= float_info<T>::case_fc_pm_half_upper_threshold) return true;
+ // For k < 0.
+ if (exponent > float_info<T>::divisibility_check_by_5_threshold) return false;
+ return divisible_by_power_of_5(two_f, minus_k);
+}
+
+template <class T>
+bool is_center_integer(typename float_info<T>::carrier_uint two_f, int exponent,
+ int minus_k) FMT_NOEXCEPT {
+ // Exponent for 5 is negative.
+ if (exponent > float_info<T>::divisibility_check_by_5_threshold) return false;
+ if (exponent > float_info<T>::case_fc_upper_threshold)
+ return divisible_by_power_of_5(two_f, minus_k);
+ // Both exponents are nonnegative.
+ if (exponent >= float_info<T>::case_fc_lower_threshold) return true;
+ // Exponent for 2 is negative.
+ return divisible_by_power_of_2(two_f, minus_k - exponent + 1);
+}
+
+// Remove trailing zeros from n and return the number of zeros removed (float)
+FMT_ALWAYS_INLINE int remove_trailing_zeros(uint32_t& n) FMT_NOEXCEPT {
+#ifdef FMT_BUILTIN_CTZ
+ int t = FMT_BUILTIN_CTZ(n);
+#else
+ int t = ctz(n);
+#endif
+ if (t > float_info<float>::max_trailing_zeros)
+ t = float_info<float>::max_trailing_zeros;
+
+ const uint32_t mod_inv1 = 0xcccccccd;
+ const uint32_t max_quotient1 = 0x33333333;
+ const uint32_t mod_inv2 = 0xc28f5c29;
+ const uint32_t max_quotient2 = 0x0a3d70a3;
+
+ int s = 0;
+ for (; s < t - 1; s += 2) {
+ if (n * mod_inv2 > max_quotient2) break;
+ n *= mod_inv2;
+ }
+ if (s < t && n * mod_inv1 <= max_quotient1) {
+ n *= mod_inv1;
+ ++s;
+ }
+ n >>= s;
+ return s;
+}
+
+// Removes trailing zeros and returns the number of zeros removed (double)
+FMT_ALWAYS_INLINE int remove_trailing_zeros(uint64_t& n) FMT_NOEXCEPT {
+#ifdef FMT_BUILTIN_CTZLL
+ int t = FMT_BUILTIN_CTZLL(n);
+#else
+ int t = ctzll(n);
+#endif
+ if (t > float_info<double>::max_trailing_zeros)
+ t = float_info<double>::max_trailing_zeros;
+ // Divide by 10^8 and reduce to 32-bits
+ // Since ret_value.significand <= (2^64 - 1) / 1000 < 10^17,
+ // both of the quotient and the r should fit in 32-bits
+
+ const uint32_t mod_inv1 = 0xcccccccd;
+ const uint32_t max_quotient1 = 0x33333333;
+ const uint64_t mod_inv8 = 0xc767074b22e90e21;
+ const uint64_t max_quotient8 = 0x00002af31dc46118;
+
+ // If the number is divisible by 1'0000'0000, work with the quotient
+ if (t >= 8) {
+ auto quotient_candidate = n * mod_inv8;
+
+ if (quotient_candidate <= max_quotient8) {
+ auto quotient = static_cast<uint32_t>(quotient_candidate >> 8);
+
+ int s = 8;
+ for (; s < t; ++s) {
+ if (quotient * mod_inv1 > max_quotient1) break;
+ quotient *= mod_inv1;
+ }
+ quotient >>= (s - 8);
+ n = quotient;
+ return s;
+ }
+ }
+
+ // Otherwise, work with the remainder
+ auto quotient = static_cast<uint32_t>(n / 100000000);
+ auto remainder = static_cast<uint32_t>(n - 100000000 * quotient);
+
+ if (t == 0 || remainder * mod_inv1 > max_quotient1) {
+ return 0;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 1 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 1) + quotient * 10000000ull;
+ return 1;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 2 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 2) + quotient * 1000000ull;
+ return 2;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 3 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 3) + quotient * 100000ull;
+ return 3;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 4 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 4) + quotient * 10000ull;
+ return 4;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 5 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 5) + quotient * 1000ull;
+ return 5;
+ }
+ remainder *= mod_inv1;
+
+ if (t == 6 || remainder * mod_inv1 > max_quotient1) {
+ n = (remainder >> 6) + quotient * 100ull;
+ return 6;
+ }
+ remainder *= mod_inv1;
+
+ n = (remainder >> 7) + quotient * 10ull;
+ return 7;
+}
+
+// The main algorithm for shorter interval case
+template <class T>
+FMT_ALWAYS_INLINE FMT_SAFEBUFFERS decimal_fp<T> shorter_interval_case(
+ int exponent) FMT_NOEXCEPT {
+ decimal_fp<T> ret_value;
+ // Compute k and beta
+ const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent);
+ const int beta_minus_1 = exponent + floor_log2_pow10(-minus_k);
+
+ // Compute xi and zi
+ using cache_entry_type = typename cache_accessor<T>::cache_entry_type;
+ const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k);
+
+ auto xi = cache_accessor<T>::compute_left_endpoint_for_shorter_interval_case(
+ cache, beta_minus_1);
+ auto zi = cache_accessor<T>::compute_right_endpoint_for_shorter_interval_case(
+ cache, beta_minus_1);
+
+ // If the left endpoint is not an integer, increase it
+ if (!is_left_endpoint_integer_shorter_interval<T>(exponent)) ++xi;
+
+ // Try bigger divisor
+ ret_value.significand = zi / 10;
+
+ // If succeed, remove trailing zeros if necessary and return
+ if (ret_value.significand * 10 >= xi) {
+ ret_value.exponent = minus_k + 1;
+ ret_value.exponent += remove_trailing_zeros(ret_value.significand);
+ return ret_value;
+ }
+
+ // Otherwise, compute the round-up of y
+ ret_value.significand =
+ cache_accessor<T>::compute_round_up_for_shorter_interval_case(
+ cache, beta_minus_1);
+ ret_value.exponent = minus_k;
+
+ // When tie occurs, choose one of them according to the rule
+ if (exponent >= float_info<T>::shorter_interval_tie_lower_threshold &&
+ exponent <= float_info<T>::shorter_interval_tie_upper_threshold) {
+ ret_value.significand = ret_value.significand % 2 == 0
+ ? ret_value.significand
+ : ret_value.significand - 1;
+ } else if (ret_value.significand < xi) {
+ ++ret_value.significand;
+ }
+ return ret_value;
+}
+
+template <typename T>
+FMT_SAFEBUFFERS decimal_fp<T> to_decimal(T x) FMT_NOEXCEPT {
+ // Step 1: integer promotion & Schubfach multiplier calculation.
+
+ using carrier_uint = typename float_info<T>::carrier_uint;
+ using cache_entry_type = typename cache_accessor<T>::cache_entry_type;
+ auto br = bit_cast<carrier_uint>(x);
+
+ // Extract significand bits and exponent bits.
+ const carrier_uint significand_mask =
+ (static_cast<carrier_uint>(1) << float_info<T>::significand_bits) - 1;
+ carrier_uint significand = (br & significand_mask);
+ int exponent = static_cast<int>((br & exponent_mask<T>()) >>
+ float_info<T>::significand_bits);
+
+ if (exponent != 0) { // Check if normal.
+ exponent += float_info<T>::exponent_bias - float_info<T>::significand_bits;
+
+ // Shorter interval case; proceed like Schubfach.
+ if (significand == 0) return shorter_interval_case<T>(exponent);
+
+ significand |=
+ (static_cast<carrier_uint>(1) << float_info<T>::significand_bits);
+ } else {
+ // Subnormal case; the interval is always regular.
+ if (significand == 0) return {0, 0};
+ exponent = float_info<T>::min_exponent - float_info<T>::significand_bits;
+ }
+
+ const bool include_left_endpoint = (significand % 2 == 0);
+ const bool include_right_endpoint = include_left_endpoint;
+
+ // Compute k and beta.
+ const int minus_k = floor_log10_pow2(exponent) - float_info<T>::kappa;
+ const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k);
+ const int beta_minus_1 = exponent + floor_log2_pow10(-minus_k);
+
+ // Compute zi and deltai
+ // 10^kappa <= deltai < 10^(kappa + 1)
+ const uint32_t deltai = cache_accessor<T>::compute_delta(cache, beta_minus_1);
+ const carrier_uint two_fc = significand << 1;
+ const carrier_uint two_fr = two_fc | 1;
+ const carrier_uint zi =
+ cache_accessor<T>::compute_mul(two_fr << beta_minus_1, cache);
+
+ // Step 2: Try larger divisor; remove trailing zeros if necessary
+
+ // Using an upper bound on zi, we might be able to optimize the division
+ // better than the compiler; we are computing zi / big_divisor here
+ decimal_fp<T> ret_value;
+ ret_value.significand = divide_by_10_to_kappa_plus_1(zi);
+ uint32_t r = static_cast<uint32_t>(zi - float_info<T>::big_divisor *
+ ret_value.significand);
+
+ if (r > deltai) {
+ goto small_divisor_case_label;
+ } else if (r < deltai) {
+ // Exclude the right endpoint if necessary
+ if (r == 0 && !include_right_endpoint &&
+ is_endpoint_integer<T>(two_fr, exponent, minus_k)) {
+ --ret_value.significand;
+ r = float_info<T>::big_divisor;
+ goto small_divisor_case_label;
+ }
+ } else {
+ // r == deltai; compare fractional parts
+ // Check conditions in the order different from the paper
+ // to take advantage of short-circuiting
+ const carrier_uint two_fl = two_fc - 1;
+ if ((!include_left_endpoint ||
+ !is_endpoint_integer<T>(two_fl, exponent, minus_k)) &&
+ !cache_accessor<T>::compute_mul_parity(two_fl, cache, beta_minus_1)) {
+ goto small_divisor_case_label;
+ }
+ }
+ ret_value.exponent = minus_k + float_info<T>::kappa + 1;
+
+ // We may need to remove trailing zeros
+ ret_value.exponent += remove_trailing_zeros(ret_value.significand);
+ return ret_value;
+
+ // Step 3: Find the significand with the smaller divisor
+
+small_divisor_case_label:
+ ret_value.significand *= 10;
+ ret_value.exponent = minus_k + float_info<T>::kappa;
+
+ const uint32_t mask = (1u << float_info<T>::kappa) - 1;
+ auto dist = r - (deltai / 2) + (float_info<T>::small_divisor / 2);
+
+ // Is dist divisible by 2^kappa?
+ if ((dist & mask) == 0) {
+ const bool approx_y_parity =
+ ((dist ^ (float_info<T>::small_divisor / 2)) & 1) != 0;
+ dist >>= float_info<T>::kappa;
+
+ // Is dist divisible by 5^kappa?
+ if (check_divisibility_and_divide_by_pow5<float_info<T>::kappa>(dist)) {
+ ret_value.significand += dist;
+
+ // Check z^(f) >= epsilon^(f)
+ // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1,
+ // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f)
+ // Since there are only 2 possibilities, we only need to care about the
+ // parity. Also, zi and r should have the same parity since the divisor
+ // is an even number
+ if (cache_accessor<T>::compute_mul_parity(two_fc, cache, beta_minus_1) !=
+ approx_y_parity) {
+ --ret_value.significand;
+ } else {
+ // If z^(f) >= epsilon^(f), we might have a tie
+ // when z^(f) == epsilon^(f), or equivalently, when y is an integer
+ if (is_center_integer<T>(two_fc, exponent, minus_k)) {
+ ret_value.significand = ret_value.significand % 2 == 0
+ ? ret_value.significand
+ : ret_value.significand - 1;
+ }
+ }
+ }
+ // Is dist not divisible by 5^kappa?
+ else {
+ ret_value.significand += dist;
+ }
+ }
+ // Is dist not divisible by 2^kappa?
+ else {
+ // Since we know dist is small, we might be able to optimize the division
+ // better than the compiler; we are computing dist / small_divisor here
+ ret_value.significand +=
+ small_division_by_pow10<float_info<T>::kappa>(dist);
+ }
+ return ret_value;
+}
+} // namespace dragonbox
+
// Formats value using a variation of the Fixed-Precision Positive
// Floating-Point Printout ((FPP)^2) algorithm by Steele & White:
// https://fmt.dev/p372-steele.pdf.
template <typename Double>
-void fallback_format(Double d, buffer<char>& buf, int& exp10) {
+void fallback_format(Double d, int num_digits, bool binary32, buffer<char>& buf,
+ int& exp10) {
bigint numerator; // 2 * R in (FPP)^2.
bigint denominator; // 2 * S in (FPP)^2.
// lower and upper are differences between value and corresponding boundaries.
@@ -972,8 +2314,9 @@ void fallback_format(Double d, buffer<char>& buf, int& exp10) {
// Shift numerator and denominator by an extra bit or two (if lower boundary
// is closer) to make lower and upper integers. This eliminates multiplication
// by 2 during later computations.
- // TODO: handle float
- int shift = value.assign(d) ? 2 : 1;
+ const bool is_predecessor_closer =
+ binary32 ? value.assign(static_cast<float>(d)) : value.assign(d);
+ int shift = is_predecessor_closer ? 2 : 1;
uint64_t significand = value.f << shift;
if (value.e >= 0) {
numerator.assign(significand);
@@ -1008,42 +2351,76 @@ void fallback_format(Double d, buffer<char>& buf, int& exp10) {
upper = &upper_store;
}
}
- if (!upper) upper = &lower;
// Invariant: value == (numerator / denominator) * pow(10, exp10).
- bool even = (value.f & 1) == 0;
- int num_digits = 0;
- char* data = buf.data();
- for (;;) {
- int digit = numerator.divmod_assign(denominator);
- bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower.
- // numerator + upper >[=] pow10:
- bool high = add_compare(numerator, *upper, denominator) + even > 0;
- data[num_digits++] = static_cast<char>('0' + digit);
- if (low || high) {
- if (!low) {
- ++data[num_digits - 1];
- } else if (high) {
- int result = add_compare(numerator, numerator, denominator);
- // Round half to even.
- if (result > 0 || (result == 0 && (digit % 2) != 0))
+ if (num_digits < 0) {
+ // Generate the shortest representation.
+ if (!upper) upper = &lower;
+ bool even = (value.f & 1) == 0;
+ num_digits = 0;
+ char* data = buf.data();
+ for (;;) {
+ int digit = numerator.divmod_assign(denominator);
+ bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower.
+ // numerator + upper >[=] pow10:
+ bool high = add_compare(numerator, *upper, denominator) + even > 0;
+ data[num_digits++] = static_cast<char>('0' + digit);
+ if (low || high) {
+ if (!low) {
++data[num_digits - 1];
+ } else if (high) {
+ int result = add_compare(numerator, numerator, denominator);
+ // Round half to even.
+ if (result > 0 || (result == 0 && (digit % 2) != 0))
+ ++data[num_digits - 1];
+ }
+ buf.try_resize(to_unsigned(num_digits));
+ exp10 -= num_digits - 1;
+ return;
+ }
+ numerator *= 10;
+ lower *= 10;
+ if (upper != &lower) *upper *= 10;
+ }
+ }
+ // Generate the given number of digits.
+ exp10 -= num_digits - 1;
+ if (num_digits == 0) {
+ buf.try_resize(1);
+ denominator *= 10;
+ buf[0] = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0';
+ return;
+ }
+ buf.try_resize(to_unsigned(num_digits));
+ for (int i = 0; i < num_digits - 1; ++i) {
+ int digit = numerator.divmod_assign(denominator);
+ buf[i] = static_cast<char>('0' + digit);
+ numerator *= 10;
+ }
+ int digit = numerator.divmod_assign(denominator);
+ auto result = add_compare(numerator, numerator, denominator);
+ if (result > 0 || (result == 0 && (digit % 2) != 0)) {
+ if (digit == 9) {
+ const auto overflow = '0' + 10;
+ buf[num_digits - 1] = overflow;
+ // Propagate the carry.
+ for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) {
+ buf[i] = '0';
+ ++buf[i - 1];
+ }
+ if (buf[0] == overflow) {
+ buf[0] = '1';
+ ++exp10;
}
- buf.resize(num_digits);
- exp10 -= num_digits - 1;
return;
}
- numerator *= 10;
- lower *= 10;
- if (upper != &lower) *upper *= 10;
+ ++digit;
}
+ buf[num_digits - 1] = static_cast<char>('0' + digit);
}
-// Formats value using the Grisu algorithm
-// (https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf)
-// if T is a IEEE754 binary32 or binary64 and snprintf otherwise.
template <typename T>
int format_float(T value, int precision, float_specs specs, buffer<char>& buf) {
- static_assert(!std::is_same<T, float>(), "");
+ static_assert(!std::is_same<T, float>::value, "");
FMT_ASSERT(value >= 0, "value is negative");
const bool fixed = specs.format == float_format::fixed;
@@ -1052,73 +2429,64 @@ int format_float(T value, int precision, float_specs specs, buffer<char>& buf) {
buf.push_back('0');
return 0;
}
- buf.resize(to_unsigned(precision));
+ buf.try_resize(to_unsigned(precision));
std::uninitialized_fill_n(buf.data(), precision, '0');
return -precision;
}
if (!specs.use_grisu) return snprintf_float(value, precision, specs, buf);
+ if (precision < 0) {
+ // Use Dragonbox for the shortest format.
+ if (specs.binary32) {
+ auto dec = dragonbox::to_decimal(static_cast<float>(value));
+ write<char>(buffer_appender<char>(buf), dec.significand);
+ return dec.exponent;
+ }
+ auto dec = dragonbox::to_decimal(static_cast<double>(value));
+ write<char>(buffer_appender<char>(buf), dec.significand);
+ return dec.exponent;
+ }
+
+ // Use Grisu + Dragon4 for the given precision:
+ // https://www.cs.tufts.edu/~nr/cs257/archive/florian-loitsch/printf.pdf.
int exp = 0;
const int min_exp = -60; // alpha in Grisu.
int cached_exp10 = 0; // K in Grisu.
- if (precision != -1) {
- if (precision > 17) return snprintf_float(value, precision, specs, buf);
- fp normalized = normalize(fp(value));
- const auto cached_pow = get_cached_power(
- min_exp - (normalized.e + fp::significand_size), cached_exp10);
- normalized = normalized * cached_pow;
- fixed_handler handler{buf.data(), 0, precision, -cached_exp10, fixed};
- if (grisu_gen_digits(normalized, 1, exp, handler) == digits::error)
- return snprintf_float(value, precision, specs, buf);
- int num_digits = handler.size;
- if (!fixed) {
- // Remove trailing zeros.
- while (num_digits > 0 && buf[num_digits - 1] == '0') {
- --num_digits;
- ++exp;
- }
- }
- buf.resize(to_unsigned(num_digits));
+ fp normalized = normalize(fp(value));
+ const auto cached_pow = get_cached_power(
+ min_exp - (normalized.e + fp::significand_size), cached_exp10);
+ normalized = normalized * cached_pow;
+ // Limit precision to the maximum possible number of significant digits in an
+ // IEEE754 double because we don't need to generate zeros.
+ const int max_double_digits = 767;
+ if (precision > max_double_digits) precision = max_double_digits;
+ fixed_handler handler{buf.data(), 0, precision, -cached_exp10, fixed};
+ if (grisu_gen_digits(normalized, 1, exp, handler) == digits::error) {
+ exp += handler.size - cached_exp10 - 1;
+ fallback_format(value, handler.precision, specs.binary32, buf, exp);
} else {
- fp fp_value;
- auto boundaries = specs.binary32
- ? fp_value.assign_float_with_boundaries(value)
- : fp_value.assign_with_boundaries(value);
- fp_value = normalize(fp_value);
- // Find a cached power of 10 such that multiplying value by it will bring
- // the exponent in the range [min_exp, -32].
- const fp cached_pow = get_cached_power(
- min_exp - (fp_value.e + fp::significand_size), cached_exp10);
- // Multiply value and boundaries by the cached power of 10.
- fp_value = fp_value * cached_pow;
- boundaries.lower = multiply(boundaries.lower, cached_pow.f);
- boundaries.upper = multiply(boundaries.upper, cached_pow.f);
- assert(min_exp <= fp_value.e && fp_value.e <= -32);
- --boundaries.lower; // \tilde{M}^- - 1 ulp -> M^-_{\downarrow}.
- ++boundaries.upper; // \tilde{M}^+ + 1 ulp -> M^+_{\uparrow}.
- // Numbers outside of (lower, upper) definitely do not round to value.
- grisu_shortest_handler handler{buf.data(), 0,
- boundaries.upper - fp_value.f};
- auto result =
- grisu_gen_digits(fp(boundaries.upper, fp_value.e),
- boundaries.upper - boundaries.lower, exp, handler);
- if (result == digits::error) {
- exp += handler.size - cached_exp10 - 1;
- fallback_format(value, buf, exp);
- return exp;
- }
- buf.resize(to_unsigned(handler.size));
+ exp += handler.exp10;
+ buf.try_resize(to_unsigned(handler.size));
}
- return exp - cached_exp10;
-}
+ if (!fixed && !specs.showpoint) {
+ // Remove trailing zeros.
+ auto num_digits = buf.size();
+ while (num_digits > 0 && buf[num_digits - 1] == '0') {
+ --num_digits;
+ ++exp;
+ }
+ buf.try_resize(num_digits);
+ }
+ return exp;
+} // namespace detail
template <typename T>
int snprintf_float(T value, int precision, float_specs specs,
buffer<char>& buf) {
// Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail.
FMT_ASSERT(buf.capacity() > buf.size(), "empty buffer");
- static_assert(!std::is_same<T, float>(), "");
+ static_assert(!std::is_same<T, float>::value, "");
// Subtract 1 to account for the difference in precision since we use %e for
// both general and exponent format.
@@ -1127,11 +2495,11 @@ int snprintf_float(T value, int precision, float_specs specs,
precision = (precision >= 0 ? precision : 6) - 1;
// Build the format string.
- enum { max_format_size = 7 }; // Ths longest format is "%#.*Le".
+ enum { max_format_size = 7 }; // The longest format is "%#.*Le".
char format[max_format_size];
char* format_ptr = format;
*format_ptr++ = '%';
- if (specs.trailing_zeros) *format_ptr++ = '#';
+ if (specs.showpoint && specs.format == float_format::hex) *format_ptr++ = '#';
if (precision >= 0) {
*format_ptr++ = '.';
*format_ptr++ = '*';
@@ -1147,30 +2515,32 @@ int snprintf_float(T value, int precision, float_specs specs,
for (;;) {
auto begin = buf.data() + offset;
auto capacity = buf.capacity() - offset;
-#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+#ifdef FMT_FUZZ
if (precision > 100000)
throw std::runtime_error(
"fuzz mode - avoid large allocation inside snprintf");
#endif
// Suppress the warning about a nonliteral format string.
- auto snprintf_ptr = FMT_SNPRINTF;
+ // Cannot use auto because of a bug in MinGW (#1532).
+ int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF;
int result = precision >= 0
? snprintf_ptr(begin, capacity, format, precision, value)
: snprintf_ptr(begin, capacity, format, value);
if (result < 0) {
- buf.reserve(buf.capacity() + 1); // The buffer will grow exponentially.
+ // The buffer will grow exponentially.
+ buf.try_reserve(buf.capacity() + 1);
continue;
}
- unsigned size = to_unsigned(result);
+ auto size = to_unsigned(result);
// Size equal to capacity means that the last character was truncated.
if (size >= capacity) {
- buf.reserve(size + offset + 1); // Add 1 for the terminating '\0'.
+ buf.try_reserve(size + offset + 1); // Add 1 for the terminating '\0'.
continue;
}
auto is_digit = [](char c) { return c >= '0' && c <= '9'; };
if (specs.format == float_format::fixed) {
if (precision == 0) {
- buf.resize(size);
+ buf.try_resize(size);
return 0;
}
// Find and remove the decimal point.
@@ -1179,12 +2549,12 @@ int snprintf_float(T value, int precision, float_specs specs,
--p;
} while (is_digit(*p));
int fraction_size = static_cast<int>(end - p - 1);
- std::memmove(p, p + 1, fraction_size);
- buf.resize(size - 1);
+ std::memmove(p, p + 1, to_unsigned(fraction_size));
+ buf.try_resize(size - 1);
return -fraction_size;
}
if (specs.format == float_format::hex) {
- buf.resize(size + offset);
+ buf.try_resize(size + offset);
return 0;
}
// Find and parse the exponent.
@@ -1208,25 +2578,86 @@ int snprintf_float(T value, int precision, float_specs specs,
while (*fraction_end == '0') --fraction_end;
// Move the fractional part left to get rid of the decimal point.
fraction_size = static_cast<int>(fraction_end - begin - 1);
- std::memmove(begin + 1, begin + 2, fraction_size);
+ std::memmove(begin + 1, begin + 2, to_unsigned(fraction_size));
}
- buf.resize(fraction_size + offset + 1);
+ buf.try_resize(to_unsigned(fraction_size) + offset + 1);
return exp - fraction_size;
}
}
-} // namespace internal
-template <> struct formatter<internal::bigint> {
+// A public domain branchless UTF-8 decoder by Christopher Wellons:
+// https://github.com/skeeto/branchless-utf8
+/* Decode the next character, c, from buf, reporting errors in e.
+ *
+ * Since this is a branchless decoder, four bytes will be read from the
+ * buffer regardless of the actual length of the next character. This
+ * means the buffer _must_ have at least three bytes of zero padding
+ * following the end of the data stream.
+ *
+ * Errors are reported in e, which will be non-zero if the parsed
+ * character was somehow invalid: invalid byte sequence, non-canonical
+ * encoding, or a surrogate half.
+ *
+ * The function returns a pointer to the next character. When an error
+ * occurs, this pointer will be a guess that depends on the particular
+ * error, but it will always advance at least one byte.
+ */
+inline const char* utf8_decode(const char* buf, uint32_t* c, int* e) {
+ static const int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07};
+ static const uint32_t mins[] = {4194304, 0, 128, 2048, 65536};
+ static const int shiftc[] = {0, 18, 12, 6, 0};
+ static const int shifte[] = {0, 6, 4, 2, 0};
+
+ int len = code_point_length(buf);
+ const char* next = buf + len;
+
+ // Assume a four-byte character and load four bytes. Unused bits are
+ // shifted out.
+ auto s = reinterpret_cast<const unsigned char*>(buf);
+ *c = uint32_t(s[0] & masks[len]) << 18;
+ *c |= uint32_t(s[1] & 0x3f) << 12;
+ *c |= uint32_t(s[2] & 0x3f) << 6;
+ *c |= uint32_t(s[3] & 0x3f) << 0;
+ *c >>= shiftc[len];
+
+ // Accumulate the various error conditions.
+ *e = (*c < mins[len]) << 6; // non-canonical encoding
+ *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half?
+ *e |= (*c > 0x10FFFF) << 8; // out of range?
+ *e |= (s[1] & 0xc0) >> 2;
+ *e |= (s[2] & 0xc0) >> 4;
+ *e |= (s[3]) >> 6;
+ *e ^= 0x2a; // top two bits of each tail byte correct?
+ *e >>= shifte[len];
+
+ return next;
+}
+
+struct stringifier {
+ template <typename T> FMT_INLINE std::string operator()(T value) const {
+ return to_string(value);
+ }
+ std::string operator()(basic_format_arg<format_context>::handle h) const {
+ memory_buffer buf;
+ format_parse_context parse_ctx({});
+ format_context format_ctx(buffer_appender<char>(buf), {}, {});
+ h.format(parse_ctx, format_ctx);
+ return to_string(buf);
+ }
+};
+} // namespace detail
+
+template <> struct formatter<detail::bigint> {
format_parse_context::iterator parse(format_parse_context& ctx) {
return ctx.begin();
}
- format_context::iterator format(const internal::bigint& n,
+ format_context::iterator format(const detail::bigint& n,
format_context& ctx) {
auto out = ctx.out();
bool first = true;
for (auto i = n.bigits_.size(); i > 0; --i) {
- auto value = n.bigits_[i - 1];
+ auto value = n.bigits_[i - 1u];
if (first) {
out = format_to(out, "{:x}", value);
first = false;
@@ -1235,107 +2666,43 @@ template <> struct formatter<internal::bigint> {
out = format_to(out, "{:08x}", value);
}
if (n.exp_ > 0)
- out = format_to(out, "p{}", n.exp_ * internal::bigint::bigit_bits);
+ out = format_to(out, "p{}", n.exp_ * detail::bigint::bigit_bits);
return out;
}
};
-#if FMT_USE_WINDOWS_H
-
-FMT_FUNC internal::utf8_to_utf16::utf8_to_utf16(string_view s) {
- static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
- if (s.size() > INT_MAX)
- FMT_THROW(windows_error(ERROR_INVALID_PARAMETER, ERROR_MSG));
- int s_size = static_cast<int>(s.size());
- if (s_size == 0) {
- // MultiByteToWideChar does not support zero length, handle separately.
- buffer_.resize(1);
- buffer_[0] = 0;
- return;
- }
-
- int length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(),
- s_size, nullptr, 0);
- if (length == 0) FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
- buffer_.resize(length + 1);
- length = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size,
- &buffer_[0], length);
- if (length == 0) FMT_THROW(windows_error(GetLastError(), ERROR_MSG));
- buffer_[length] = 0;
-}
-
-FMT_FUNC internal::utf16_to_utf8::utf16_to_utf8(wstring_view s) {
- if (int error_code = convert(s)) {
- FMT_THROW(windows_error(error_code,
- "cannot convert string from UTF-16 to UTF-8"));
- }
-}
-
-FMT_FUNC int internal::utf16_to_utf8::convert(wstring_view s) {
- if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER;
- int s_size = static_cast<int>(s.size());
- if (s_size == 0) {
- // WideCharToMultiByte does not support zero length, handle separately.
- buffer_.resize(1);
- buffer_[0] = 0;
- return 0;
- }
-
- int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, nullptr, 0,
- nullptr, nullptr);
- if (length == 0) return GetLastError();
- buffer_.resize(length + 1);
- length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, &buffer_[0],
- length, nullptr, nullptr);
- if (length == 0) return GetLastError();
- buffer_[length] = 0;
- return 0;
-}
-
-FMT_FUNC void windows_error::init(int err_code, string_view format_str,
- format_args args) {
- error_code_ = err_code;
- memory_buffer buffer;
- internal::format_windows_error(buffer, err_code, vformat(format_str, args));
- std::runtime_error& base = *this;
- base = std::runtime_error(to_string(buffer));
-}
-
-FMT_FUNC void internal::format_windows_error(internal::buffer<char>& out,
- int error_code,
- string_view message) FMT_NOEXCEPT {
- FMT_TRY {
- wmemory_buffer buf;
- buf.resize(inline_buffer_size);
- for (;;) {
- wchar_t* system_message = &buf[0];
- int result = FormatMessageW(
- FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, nullptr,
- error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), system_message,
- static_cast<uint32_t>(buf.size()), nullptr);
- if (result != 0) {
- utf16_to_utf8 utf8_message;
- if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
- internal::writer w(out);
- w.write(message);
- w.write(": ");
- w.write(utf8_message);
- return;
- }
- break;
- }
- if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
- break; // Can't get error message, report error code instead.
- buf.resize(buf.size() * 2);
+FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) {
+ auto transcode = [this](const char* p) {
+ auto cp = uint32_t();
+ auto error = 0;
+ p = utf8_decode(p, &cp, &error);
+ if (error != 0) FMT_THROW(std::runtime_error("invalid utf8"));
+ if (cp <= 0xFFFF) {
+ buffer_.push_back(static_cast<wchar_t>(cp));
+ } else {
+ cp -= 0x10000;
+ buffer_.push_back(static_cast<wchar_t>(0xD800 + (cp >> 10)));
+ buffer_.push_back(static_cast<wchar_t>(0xDC00 + (cp & 0x3FF)));
}
+ return p;
+ };
+ auto p = s.data();
+ const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars.
+ if (s.size() >= block_size) {
+ for (auto end = p + s.size() - block_size + 1; p < end;) p = transcode(p);
}
- FMT_CATCH(...) {}
- format_error_code(out, error_code, message);
+ if (auto num_chars_left = s.data() + s.size() - p) {
+ char buf[2 * block_size - 1] = {};
+ memcpy(buf, p, to_unsigned(num_chars_left));
+ p = buf;
+ do {
+ p = transcode(p);
+ } while (p - buf < num_chars_left);
+ }
+ buffer_.push_back(0);
}
-#endif // FMT_USE_WINDOWS_H
-
-FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
+FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT {
FMT_TRY {
memory_buffer buf;
@@ -1343,12 +2710,10 @@ FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
for (;;) {
char* system_message = &buf[0];
int result =
- internal::safe_strerror(error_code, system_message, buf.size());
+ detail::safe_strerror(error_code, system_message, buf.size());
if (result == 0) {
- internal::writer w(out);
- w.write(message);
- w.write(": ");
- w.write(system_message);
+ format_to(detail::buffer_appender<char>(out), "{}: {}", message,
+ system_message);
return;
}
if (result != ERANGE)
@@ -1360,7 +2725,7 @@ FMT_FUNC void format_system_error(internal::buffer<char>& out, int error_code,
format_error_code(out, error_code, message);
}
-FMT_FUNC void internal::error_handler::on_error(const char* message) {
+FMT_FUNC void detail::error_handler::on_error(const char* message) {
FMT_THROW(format_error(message));
}
@@ -1369,28 +2734,60 @@ FMT_FUNC void report_system_error(int error_code,
report_error(format_system_error, error_code, message);
}
-#if FMT_USE_WINDOWS_H
-FMT_FUNC void report_windows_error(int error_code,
- fmt::string_view message) FMT_NOEXCEPT {
- report_error(internal::format_windows_error, error_code, message);
+FMT_FUNC std::string detail::vformat(string_view format_str, format_args args) {
+ if (format_str.size() == 2 && equal2(format_str.data(), "{}")) {
+ auto arg = args.get(0);
+ if (!arg) error_handler().on_error("argument not found");
+ return visit_format_arg(stringifier(), arg);
+ }
+ memory_buffer buffer;
+ detail::vformat_to(buffer, format_str, args);
+ return to_string(buffer);
}
+
+#ifdef _WIN32
+namespace detail {
+using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>;
+extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( //
+ void*, const void*, dword, dword*, void*);
+} // namespace detail
#endif
FMT_FUNC void vprint(std::FILE* f, string_view format_str, format_args args) {
memory_buffer buffer;
- internal::vformat_to(buffer, format_str,
- basic_format_args<buffer_context<char>>(args));
- internal::fwrite_fully(buffer.data(), 1, buffer.size(), f);
+ detail::vformat_to(buffer, format_str,
+ basic_format_args<buffer_context<char>>(args));
+#ifdef _WIN32
+ auto fd = _fileno(f);
+ if (_isatty(fd)) {
+ detail::utf8_to_utf16 u16(string_view(buffer.data(), buffer.size()));
+ auto written = detail::dword();
+ if (!detail::WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)),
+ u16.c_str(), static_cast<uint32_t>(u16.size()),
+ &written, nullptr)) {
+ FMT_THROW(format_error("failed to write to console"));
+ }
+ return;
+ }
+#endif
+ detail::fwrite_fully(buffer.data(), 1, buffer.size(), f);
}
+#ifdef _WIN32
+// Print assuming legacy (non-Unicode) encoding.
+FMT_FUNC void detail::vprint_mojibake(std::FILE* f, string_view format_str,
+ format_args args) {
+ memory_buffer buffer;
+ detail::vformat_to(buffer, format_str,
+ basic_format_args<buffer_context<char>>(args));
+ fwrite_fully(buffer.data(), 1, buffer.size(), f);
+}
+#endif
+
FMT_FUNC void vprint(string_view format_str, format_args args) {
vprint(stdout, format_str, args);
}
FMT_END_NAMESPACE
-#ifdef _MSC_VER
-# pragma warning(pop)
-#endif
-
#endif // FMT_FORMAT_INL_H_
diff --git a/Externals/fmt/include/fmt/format.h b/Externals/fmt/include/fmt/format.h
index 01f41f5cbd..ad039c35e2 100755
--- a/Externals/fmt/include/fmt/format.h
+++ b/Externals/fmt/include/fmt/format.h
@@ -33,8 +33,6 @@
#ifndef FMT_FORMAT_H_
#define FMT_FORMAT_H_
-#include "core.h"
-
#include <algorithm>
#include <cerrno>
#include <cmath>
@@ -43,11 +41,7 @@
#include <memory>
#include <stdexcept>
-#ifdef __clang__
-# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
-#else
-# define FMT_CLANG_VERSION 0
-#endif
+#include "core.h"
#ifdef __INTEL_COMPILER
# define FMT_ICC_VERSION __INTEL_COMPILER
@@ -69,27 +63,52 @@
# define FMT_HAS_BUILTIN(x) 0
#endif
-#if FMT_HAS_CPP_ATTRIBUTE(fallthrough) && \
- (__cplusplus >= 201703 || FMT_GCC_VERSION != 0)
+#if FMT_GCC_VERSION || FMT_CLANG_VERSION
+# define FMT_NOINLINE __attribute__((noinline))
+#else
+# define FMT_NOINLINE
+#endif
+
+#if __cplusplus == 201103L || __cplusplus == 201402L
+# if defined(__INTEL_COMPILER) || defined(__PGI)
+# define FMT_FALLTHROUGH
+# elif defined(__clang__)
+# define FMT_FALLTHROUGH [[clang::fallthrough]]
+# elif FMT_GCC_VERSION >= 700 && \
+ (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520)
+# define FMT_FALLTHROUGH [[gnu::fallthrough]]
+# else
+# define FMT_FALLTHROUGH
+# endif
+#elif FMT_HAS_CPP17_ATTRIBUTE(fallthrough) || \
+ (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
# define FMT_FALLTHROUGH [[fallthrough]]
#else
# define FMT_FALLTHROUGH
#endif
+#ifndef FMT_MAYBE_UNUSED
+# if FMT_HAS_CPP17_ATTRIBUTE(maybe_unused)
+# define FMT_MAYBE_UNUSED [[maybe_unused]]
+# else
+# define FMT_MAYBE_UNUSED
+# endif
+#endif
+
#ifndef FMT_THROW
# if FMT_EXCEPTIONS
-# if FMT_MSC_VER
+# if FMT_MSC_VER || FMT_NVCC
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
template <typename Exception> inline void do_throw(const Exception& x) {
- // Silence unreachable code warnings in MSVC because these are nearly
- // impossible to fix in a generic code.
+ // Silence unreachable code warnings in MSVC and NVCC because these
+ // are nearly impossible to fix in a generic code.
volatile bool b = true;
if (b) throw x;
}
-} // namespace internal
+} // namespace detail
FMT_END_NAMESPACE
-# define FMT_THROW(x) internal::do_throw(x)
+# define FMT_THROW(x) detail::do_throw(x)
# else
# define FMT_THROW(x) throw x
# endif
@@ -102,12 +121,19 @@ FMT_END_NAMESPACE
# endif
#endif
+#if FMT_EXCEPTIONS
+# define FMT_TRY try
+# define FMT_CATCH(x) catch (x)
+#else
+# define FMT_TRY if (true)
+# define FMT_CATCH(x) if (false)
+#endif
+
#ifndef FMT_USE_USER_DEFINED_LITERALS
-// For Intel and NVIDIA compilers both they and the system gcc/msc support UDLs.
-# if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || \
- FMT_MSC_VER >= 1900) && \
- (!(FMT_ICC_VERSION || FMT_CUDA_VERSION) || FMT_ICC_VERSION >= 1500 || \
- FMT_CUDA_VERSION >= 700)
+// EDG based compilers (Intel, NVIDIA, Elbrus, etc), GCC and MSVC support UDLs.
+# if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 407 || \
+ FMT_MSC_VER >= 1900) && \
+ (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= /* UDL feature */ 480)
# define FMT_USE_USER_DEFINED_LITERALS 1
# else
# define FMT_USE_USER_DEFINED_LITERALS 0
@@ -115,19 +141,39 @@ FMT_END_NAMESPACE
#endif
#ifndef FMT_USE_UDL_TEMPLATE
-// EDG front end based compilers (icc, nvcc) do not support UDL templates yet
-// and GCC 9 warns about them.
-# if FMT_USE_USER_DEFINED_LITERALS && FMT_ICC_VERSION == 0 && \
- FMT_CUDA_VERSION == 0 && \
- ((FMT_GCC_VERSION >= 600 && FMT_GCC_VERSION <= 900 && \
- __cplusplus >= 201402L) || \
- FMT_CLANG_VERSION >= 304)
+// EDG frontend based compilers (icc, nvcc, PGI, etc) and GCC < 6.4 do not
+// properly support UDL templates and GCC >= 9 warns about them.
+# if FMT_USE_USER_DEFINED_LITERALS && \
+ (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 501) && \
+ ((FMT_GCC_VERSION >= 604 && __cplusplus >= 201402L) || \
+ FMT_CLANG_VERSION >= 304) && \
+ !defined(__PGI) && !defined(__NVCC__)
# define FMT_USE_UDL_TEMPLATE 1
# else
# define FMT_USE_UDL_TEMPLATE 0
# endif
#endif
+#ifndef FMT_USE_FLOAT
+# define FMT_USE_FLOAT 1
+#endif
+
+#ifndef FMT_USE_DOUBLE
+# define FMT_USE_DOUBLE 1
+#endif
+
+#ifndef FMT_USE_LONG_DOUBLE
+# define FMT_USE_LONG_DOUBLE 1
+#endif
+
+// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of
+// int_writer template instances to just one by only using the largest integer
+// type. This results in a reduction in binary size but will cause a decrease in
+// integer formatting performance.
+#if !defined(FMT_REDUCE_INT_INSTANTIATIONS)
+# define FMT_REDUCE_INT_INSTANTIATIONS 0
+#endif
+
// __builtin_clz is broken in clang with Microsoft CodeGen:
// https://github.com/fmtlib/fmt/issues/519
#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clz)) && !FMT_MSC_VER
@@ -136,76 +182,98 @@ FMT_END_NAMESPACE
#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_clzll)) && !FMT_MSC_VER
# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
#endif
+#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_ctz))
+# define FMT_BUILTIN_CTZ(n) __builtin_ctz(n)
+#endif
+#if (FMT_GCC_VERSION || FMT_HAS_BUILTIN(__builtin_ctzll))
+# define FMT_BUILTIN_CTZLL(n) __builtin_ctzll(n)
+#endif
+
+#if FMT_MSC_VER
+# include <intrin.h> // _BitScanReverse[64], _BitScanForward[64], _umul128
+#endif
// Some compilers masquerade as both MSVC and GCC-likes or otherwise support
// __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the
// MSVC intrinsics if the clz and clzll builtins are not available.
-#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && !defined(_MANAGED)
-# include <intrin.h> // _BitScanReverse, _BitScanReverse64
-
+#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL) && \
+ !defined(FMT_BUILTIN_CTZLL) && !defined(_MANAGED)
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning.
# ifndef __clang__
+# pragma intrinsic(_BitScanForward)
# pragma intrinsic(_BitScanReverse)
# endif
-inline uint32_t clz(uint32_t x) {
+# if defined(_WIN64) && !defined(__clang__)
+# pragma intrinsic(_BitScanForward64)
+# pragma intrinsic(_BitScanReverse64)
+# endif
+
+inline int clz(uint32_t x) {
unsigned long r = 0;
_BitScanReverse(&r, x);
-
FMT_ASSERT(x != 0, "");
// Static analysis complains about using uninitialized data
// "r", but the only way that can happen is if "x" is 0,
// which the callers guarantee to not happen.
-# pragma warning(suppress : 6102)
- return 31 - r;
+ FMT_SUPPRESS_MSC_WARNING(6102)
+ return 31 ^ static_cast<int>(r);
}
-# define FMT_BUILTIN_CLZ(n) internal::clz(n)
+# define FMT_BUILTIN_CLZ(n) detail::clz(n)
-# if defined(_WIN64) && !defined(__clang__)
-# pragma intrinsic(_BitScanReverse64)
-# endif
-
-inline uint32_t clzll(uint64_t x) {
+inline int clzll(uint64_t x) {
unsigned long r = 0;
# ifdef _WIN64
_BitScanReverse64(&r, x);
# else
// Scan the high 32 bits.
- if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32))) return 63 - (r + 32);
-
+ if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32))) return 63 ^ (r + 32);
// Scan the low 32 bits.
_BitScanReverse(&r, static_cast<uint32_t>(x));
# endif
-
FMT_ASSERT(x != 0, "");
- // Static analysis complains about using uninitialized data
- // "r", but the only way that can happen is if "x" is 0,
- // which the callers guarantee to not happen.
-# pragma warning(suppress : 6102)
- return 63 - r;
+ FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning.
+ return 63 ^ static_cast<int>(r);
}
-# define FMT_BUILTIN_CLZLL(n) internal::clzll(n)
-} // namespace internal
+# define FMT_BUILTIN_CLZLL(n) detail::clzll(n)
+
+inline int ctz(uint32_t x) {
+ unsigned long r = 0;
+ _BitScanForward(&r, x);
+ FMT_ASSERT(x != 0, "");
+ FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning.
+ return static_cast<int>(r);
+}
+# define FMT_BUILTIN_CTZ(n) detail::ctz(n)
+
+inline int ctzll(uint64_t x) {
+ unsigned long r = 0;
+ FMT_ASSERT(x != 0, "");
+ FMT_SUPPRESS_MSC_WARNING(6102) // Suppress a bogus static analysis warning.
+# ifdef _WIN64
+ _BitScanForward64(&r, x);
+# else
+ // Scan the low 32 bits.
+ if (_BitScanForward(&r, static_cast<uint32_t>(x))) return static_cast<int>(r);
+ // Scan the high 32 bits.
+ _BitScanForward(&r, static_cast<uint32_t>(x >> 32));
+ r += 32;
+# endif
+ return static_cast<int>(r);
+}
+# define FMT_BUILTIN_CTZLL(n) detail::ctzll(n)
+} // namespace detail
FMT_END_NAMESPACE
#endif
// Enable the deprecated numeric alignment.
-#ifndef FMT_NUMERIC_ALIGN
-# define FMT_NUMERIC_ALIGN 1
-#endif
-
-// Enable the deprecated percent specifier.
-#ifndef FMT_DEPRECATED_PERCENT
-# define FMT_DEPRECATED_PERCENT 0
+#ifndef FMT_DEPRECATED_NUMERIC_ALIGN
+# define FMT_DEPRECATED_NUMERIC_ALIGN 0
#endif
FMT_BEGIN_NAMESPACE
-namespace internal {
-
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-template <typename T> inline T const_check(T value) { return value; }
+namespace detail {
// An equivalent of `*reinterpret_cast<Dest*>(&source)` that doesn't have
// undefined behavior (e.g. due to type aliasing).
@@ -219,7 +287,7 @@ inline Dest bit_cast(const Source& source) {
}
inline bool is_big_endian() {
- auto u = 1u;
+ const auto u = 1u;
struct bytes {
char data[sizeof(u)];
};
@@ -257,47 +325,25 @@ template <typename T> constexpr T max_value() {
template <typename T> constexpr int num_bits() {
return std::numeric_limits<T>::digits;
}
+// std::numeric_limits<T>::digits may return 0 for 128-bit ints.
+template <> constexpr int num_bits<int128_t>() { return 128; }
+template <> constexpr int num_bits<uint128_t>() { return 128; }
template <> constexpr int num_bits<fallback_uintptr>() {
return static_cast<int>(sizeof(void*) *
std::numeric_limits<unsigned char>::digits);
}
+FMT_INLINE void assume(bool condition) {
+ (void)condition;
+#if FMT_HAS_BUILTIN(__builtin_assume)
+ __builtin_assume(condition);
+#endif
+}
+
// An approximation of iterator_t for pre-C++20 systems.
template <typename T>
using iterator_t = decltype(std::begin(std::declval<T&>()));
-
-// Detect the iterator category of *any* given type in a SFINAE-friendly way.
-// Unfortunately, older implementations of std::iterator_traits are not safe
-// for use in a SFINAE-context.
-template <typename It, typename Enable = void>
-struct iterator_category : std::false_type {};
-
-template <typename T> struct iterator_category<T*> {
- using type = std::random_access_iterator_tag;
-};
-
-template <typename It>
-struct iterator_category<It, void_t<typename It::iterator_category>> {
- using type = typename It::iterator_category;
-};
-
-// Detect if *any* given type models the OutputIterator concept.
-template <typename It> class is_output_iterator {
- // Check for mutability because all iterator categories derived from
- // std::input_iterator_tag *may* also meet the requirements of an
- // OutputIterator, thereby falling into the category of 'mutable iterators'
- // [iterator.requirements.general] clause 4. The compiler reveals this
- // property only at the point of *actually dereferencing* the iterator!
- template <typename U>
- static decltype(*(std::declval<U>())) test(std::input_iterator_tag);
- template <typename U> static char& test(std::output_iterator_tag);
- template <typename U> static const char& test(...);
-
- using type = decltype(test<It>(typename iterator_category<It>::type{}));
-
- public:
- static const bool value = !std::is_const<remove_reference_t<type>>::value;
-};
+template <typename T> using sentinel_t = decltype(std::end(std::declval<T&>()));
// A workaround for std::string not having mutable data() until C++17.
template <typename Char> inline Char* get_data(std::basic_string<Char>& s) {
@@ -308,28 +354,61 @@ inline typename Container::value_type* get_data(Container& c) {
return c.data();
}
-#ifdef _SECURE_SCL
+#if defined(_SECURE_SCL) && _SECURE_SCL
// Make a checked iterator to avoid MSVC warnings.
template <typename T> using checked_ptr = stdext::checked_array_iterator<T*>;
-template <typename T> checked_ptr<T> make_checked(T* p, std::size_t size) {
+template <typename T> checked_ptr<T> make_checked(T* p, size_t size) {
return {p, size};
}
#else
template <typename T> using checked_ptr = T*;
-template <typename T> inline T* make_checked(T* p, std::size_t) { return p; }
+template <typename T> inline T* make_checked(T* p, size_t) { return p; }
#endif
template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)>
-inline checked_ptr<typename Container::value_type> reserve(
- std::back_insert_iterator<Container>& it, std::size_t n) {
+#if FMT_CLANG_VERSION
+__attribute__((no_sanitize("undefined")))
+#endif
+inline checked_ptr<typename Container::value_type>
+reserve(std::back_insert_iterator<Container> it, size_t n) {
Container& c = get_container(it);
- std::size_t size = c.size();
+ size_t size = c.size();
c.resize(size + n);
return make_checked(get_data(c) + size, n);
}
+template <typename T>
+inline buffer_appender<T> reserve(buffer_appender<T> it, size_t n) {
+ buffer<T>& buf = get_container(it);
+ buf.try_reserve(buf.size() + n);
+ return it;
+}
+
+template <typename Iterator> inline Iterator& reserve(Iterator& it, size_t) {
+ return it;
+}
+
+template <typename T, typename OutputIt>
+constexpr T* to_pointer(OutputIt, size_t) {
+ return nullptr;
+}
+template <typename T> T* to_pointer(buffer_appender<T> it, size_t n) {
+ buffer<T>& buf = get_container(it);
+ auto size = buf.size();
+ if (buf.capacity() < size + n) return nullptr;
+ buf.try_resize(size + n);
+ return buf.data() + size;
+}
+
+template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)>
+inline std::back_insert_iterator<Container> base_iterator(
+ std::back_insert_iterator<Container>& it,
+ checked_ptr<typename Container::value_type>) {
+ return it;
+}
+
template <typename Iterator>
-inline Iterator& reserve(Iterator& it, std::size_t) {
+inline Iterator base_iterator(Iterator, Iterator it) {
return it;
}
@@ -337,7 +416,7 @@ inline Iterator& reserve(Iterator& it, std::size_t) {
// discards them.
class counting_iterator {
private:
- std::size_t count_;
+ size_t count_;
public:
using iterator_category = std::output_iterator_tag;
@@ -352,33 +431,38 @@ class counting_iterator {
counting_iterator() : count_(0) {}
- std::size_t count() const { return count_; }
+ size_t count() const { return count_; }
counting_iterator& operator++() {
++count_;
return *this;
}
-
counting_iterator operator++(int) {
auto it = *this;
++*this;
return it;
}
+ friend counting_iterator operator+(counting_iterator it, difference_type n) {
+ it.count_ += static_cast<size_t>(n);
+ return it;
+ }
+
value_type operator*() const { return {}; }
};
template <typename OutputIt> class truncating_iterator_base {
protected:
OutputIt out_;
- std::size_t limit_;
- std::size_t count_;
+ size_t limit_;
+ size_t count_;
- truncating_iterator_base(OutputIt out, std::size_t limit)
+ truncating_iterator_base(OutputIt out, size_t limit)
: out_(out), limit_(limit), count_(0) {}
public:
using iterator_category = std::output_iterator_tag;
+ using value_type = typename std::iterator_traits<OutputIt>::value_type;
using difference_type = void;
using pointer = void;
using reference = void;
@@ -386,7 +470,7 @@ template <typename OutputIt> class truncating_iterator_base {
truncating_iterator_base; // Mark iterator as checked.
OutputIt base() const { return out_; }
- std::size_t count() const { return count_; }
+ size_t count() const { return count_; }
};
// An output iterator that truncates the output and counts the number of objects
@@ -399,14 +483,12 @@ class truncating_iterator;
template <typename OutputIt>
class truncating_iterator<OutputIt, std::false_type>
: public truncating_iterator_base<OutputIt> {
- using traits = std::iterator_traits<OutputIt>;
-
- mutable typename traits::value_type blackhole_;
+ mutable typename truncating_iterator_base<OutputIt>::value_type blackhole_;
public:
- using value_type = typename traits::value_type;
+ using value_type = typename truncating_iterator_base<OutputIt>::value_type;
- truncating_iterator(OutputIt out, std::size_t limit)
+ truncating_iterator(OutputIt out, size_t limit)
: truncating_iterator_base<OutputIt>(out, limit) {}
truncating_iterator& operator++() {
@@ -429,13 +511,11 @@ template <typename OutputIt>
class truncating_iterator<OutputIt, std::true_type>
: public truncating_iterator_base<OutputIt> {
public:
- using value_type = typename OutputIt::container_type::value_type;
-
- truncating_iterator(OutputIt out, std::size_t limit)
+ truncating_iterator(OutputIt out, size_t limit)
: truncating_iterator_base<OutputIt>(out, limit) {}
- truncating_iterator& operator=(value_type val) {
- if (this->count_++ < this->limit_) this->out_ = val;
+ template <typename T> truncating_iterator& operator=(T val) {
+ if (this->count_++ < this->limit_) *this->out_++ = val;
return *this;
}
@@ -444,30 +524,14 @@ class truncating_iterator<OutputIt, std::true_type>
truncating_iterator& operator*() { return *this; }
};
-// A range with the specified output iterator and value type.
-template <typename OutputIt, typename T = typename OutputIt::value_type>
-class output_range {
- private:
- OutputIt it_;
-
- public:
- using value_type = T;
- using iterator = OutputIt;
- struct sentinel {};
-
- explicit output_range(OutputIt it) : it_(it) {}
- OutputIt begin() const { return it_; }
- sentinel end() const { return {}; } // Sentinel is not used yet.
-};
-
template <typename Char>
inline size_t count_code_points(basic_string_view<Char> s) {
return s.size();
}
// Counts the number of code points in a UTF-8 string.
-inline size_t count_code_points(basic_string_view<char8_t> s) {
- const char8_t* data = s.data();
+inline size_t count_code_points(basic_string_view<char> s) {
+ const char* data = s.data();
size_t num_code_points = 0;
for (size_t i = 0, size = s.size(); i != size; ++i) {
if ((data[i] & 0xc0) != 0x80) ++num_code_points;
@@ -475,6 +539,11 @@ inline size_t count_code_points(basic_string_view<char8_t> s) {
return num_code_points;
}
+inline size_t count_code_points(basic_string_view<char8_type> s) {
+ return count_code_points(basic_string_view<char>(
+ reinterpret_cast<const char*>(s.data()), s.size()));
+}
+
template <typename Char>
inline size_t code_point_index(basic_string_view<Char> s, size_t n) {
size_t size = s.size();
@@ -482,8 +551,8 @@ inline size_t code_point_index(basic_string_view<Char> s, size_t n) {
}
// Calculates the index of the nth code point in a UTF-8 string.
-inline size_t code_point_index(basic_string_view<char8_t> s, size_t n) {
- const char8_t* data = s.data();
+inline size_t code_point_index(basic_string_view<char8_type> s, size_t n) {
+ const char8_type* data = s.data();
size_t num_code_points = 0;
for (size_t i = 0, size = s.size(); i != size; ++i) {
if ((data[i] & 0xc0) != 0x80 && ++num_code_points > n) {
@@ -493,13 +562,11 @@ inline size_t code_point_index(basic_string_view<char8_t> s, size_t n) {
return s.size();
}
-inline char8_t to_char8_t(char c) { return static_cast<char8_t>(c); }
-
template <typename InputIt, typename OutChar>
using needs_conversion = bool_constant<
std::is_same<typename std::iterator_traits<InputIt>::value_type,
char>::value &&
- std::is_same<OutChar, char8_t>::value>;
+ std::is_same<OutChar, char8_type>::value>;
template <typename OutChar, typename InputIt, typename OutputIt,
FMT_ENABLE_IF(!needs_conversion<InputIt, OutChar>::value)>
@@ -510,56 +577,44 @@ OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) {
template <typename OutChar, typename InputIt, typename OutputIt,
FMT_ENABLE_IF(needs_conversion<InputIt, OutChar>::value)>
OutputIt copy_str(InputIt begin, InputIt end, OutputIt it) {
- return std::transform(begin, end, it, to_char8_t);
+ return std::transform(begin, end, it,
+ [](char c) { return static_cast<char8_type>(c); });
}
-#ifndef FMT_USE_GRISU
-# define FMT_USE_GRISU 1
+template <typename Char, typename InputIt>
+inline counting_iterator copy_str(InputIt begin, InputIt end,
+ counting_iterator it) {
+ return it + (end - begin);
+}
+
+template <typename T>
+using is_fast_float = bool_constant<std::numeric_limits<T>::is_iec559 &&
+ sizeof(T) <= sizeof(double)>;
+
+#ifndef FMT_USE_FULL_CACHE_DRAGONBOX
+# define FMT_USE_FULL_CACHE_DRAGONBOX 0
#endif
-template <typename T> constexpr bool use_grisu() {
- return FMT_USE_GRISU && std::numeric_limits<double>::is_iec559 &&
- sizeof(T) <= sizeof(double);
-}
-
template <typename T>
template <typename U>
void buffer<T>::append(const U* begin, const U* end) {
- std::size_t new_size = size_ + to_unsigned(end - begin);
- reserve(new_size);
- std::uninitialized_copy(begin, end, make_checked(ptr_, capacity_) + size_);
- size_ = new_size;
+ do {
+ auto count = to_unsigned(end - begin);
+ try_reserve(size_ + count);
+ auto free_cap = capacity_ - size_;
+ if (free_cap < count) count = free_cap;
+ std::uninitialized_copy_n(begin, count, make_checked(ptr_ + size_, count));
+ size_ += count;
+ begin += count;
+ } while (begin != end);
}
-} // namespace internal
-// A range with an iterator appending to a buffer.
-template <typename T>
-class buffer_range : public internal::output_range<
- std::back_insert_iterator<internal::buffer<T>>, T> {
- public:
- using iterator = std::back_insert_iterator<internal::buffer<T>>;
- using internal::output_range<iterator, T>::output_range;
- buffer_range(internal::buffer<T>& buf)
- : internal::output_range<iterator, T>(std::back_inserter(buf)) {}
-};
-
-// A UTF-8 string view.
-class u8string_view : public basic_string_view<char8_t> {
- public:
- u8string_view(const char* s)
- : basic_string_view<char8_t>(reinterpret_cast<const char8_t*>(s)) {}
- u8string_view(const char* s, size_t count) FMT_NOEXCEPT
- : basic_string_view<char8_t>(reinterpret_cast<const char8_t*>(s), count) {
- }
-};
-
-#if FMT_USE_USER_DEFINED_LITERALS
-inline namespace literals {
-inline u8string_view operator"" _u(const char* s, std::size_t n) {
- return {s, n};
+template <typename OutputIt, typename T, typename Traits>
+void iterator_buffer<OutputIt, T, Traits>::flush() {
+ out_ = std::copy_n(data_, this->limit(this->size()), out_);
+ this->clear();
}
-} // namespace literals
-#endif
+} // namespace detail
// The number of characters to store in the basic_memory_buffer object itself
// to avoid dynamic memory allocation.
@@ -594,42 +649,44 @@ enum { inline_buffer_size = 500 };
The output can be converted to an ``std::string`` with ``to_string(out)``.
\endrst
*/
-template <typename T, std::size_t SIZE = inline_buffer_size,
+template <typename T, size_t SIZE = inline_buffer_size,
typename Allocator = std::allocator<T>>
-class basic_memory_buffer : private Allocator, public internal::buffer<T> {
+class basic_memory_buffer final : public detail::buffer<T> {
private:
T store_[SIZE];
+ // Don't inherit from Allocator avoid generating type_info for it.
+ Allocator alloc_;
+
// Deallocate memory allocated by the buffer.
void deallocate() {
T* data = this->data();
- if (data != store_) Allocator::deallocate(data, this->capacity());
+ if (data != store_) alloc_.deallocate(data, this->capacity());
}
protected:
- void grow(std::size_t size) FMT_OVERRIDE;
+ void grow(size_t size) final FMT_OVERRIDE;
public:
using value_type = T;
using const_reference = const T&;
explicit basic_memory_buffer(const Allocator& alloc = Allocator())
- : Allocator(alloc) {
+ : alloc_(alloc) {
this->set(store_, SIZE);
}
- ~basic_memory_buffer() FMT_OVERRIDE { deallocate(); }
+ ~basic_memory_buffer() { deallocate(); }
private:
// Move data from other to this buffer.
void move(basic_memory_buffer& other) {
- Allocator &this_alloc = *this, &other_alloc = other;
- this_alloc = std::move(other_alloc);
+ alloc_ = std::move(other.alloc_);
T* data = other.data();
- std::size_t size = other.size(), capacity = other.capacity();
+ size_t size = other.size(), capacity = other.capacity();
if (data == other.store_) {
this->set(store_, capacity);
std::uninitialized_copy(other.store_, other.store_ + size,
- internal::make_checked(store_, capacity));
+ detail::make_checked(store_, capacity));
} else {
this->set(data, capacity);
// Set pointer to the inline array so that delete is not called
@@ -661,33 +718,55 @@ class basic_memory_buffer : private Allocator, public internal::buffer<T> {
}
// Returns a copy of the allocator associated with this buffer.
- Allocator get_allocator() const { return *this; }
+ Allocator get_allocator() const { return alloc_; }
+
+ /**
+ Resizes the buffer to contain *count* elements. If T is a POD type new
+ elements may not be initialized.
+ */
+ void resize(size_t count) { this->try_resize(count); }
+
+ /** Increases the buffer capacity to *new_capacity*. */
+ void reserve(size_t new_capacity) { this->try_reserve(new_capacity); }
+
+ // Directly append data into the buffer
+ using detail::buffer<T>::append;
+ template <typename ContiguousRange>
+ void append(const ContiguousRange& range) {
+ append(range.data(), range.data() + range.size());
+ }
};
-template <typename T, std::size_t SIZE, typename Allocator>
-void basic_memory_buffer<T, SIZE, Allocator>::grow(std::size_t size) {
-#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
- if (size > 1000) throw std::runtime_error("fuzz mode - won't grow that much");
+template <typename T, size_t SIZE, typename Allocator>
+void basic_memory_buffer<T, SIZE, Allocator>::grow(size_t size) {
+#ifdef FMT_FUZZ
+ if (size > 5000) throw std::runtime_error("fuzz mode - won't grow that much");
#endif
- std::size_t old_capacity = this->capacity();
- std::size_t new_capacity = old_capacity + old_capacity / 2;
+ size_t old_capacity = this->capacity();
+ size_t new_capacity = old_capacity + old_capacity / 2;
if (size > new_capacity) new_capacity = size;
T* old_data = this->data();
- T* new_data = std::allocator_traits<Allocator>::allocate(*this, new_capacity);
+ T* new_data =
+ std::allocator_traits<Allocator>::allocate(alloc_, new_capacity);
// The following code doesn't throw, so the raw pointer above doesn't leak.
std::uninitialized_copy(old_data, old_data + this->size(),
- internal::make_checked(new_data, new_capacity));
+ detail::make_checked(new_data, new_capacity));
this->set(new_data, new_capacity);
// deallocate must not throw according to the standard, but even if it does,
// the buffer already uses the new storage and will deallocate it in
// destructor.
- if (old_data != store_) Allocator::deallocate(old_data, old_capacity);
+ if (old_data != store_) alloc_.deallocate(old_data, old_capacity);
}
using memory_buffer = basic_memory_buffer<char>;
using wmemory_buffer = basic_memory_buffer<wchar_t>;
+template <typename T, size_t SIZE, typename Allocator>
+struct is_contiguous<basic_memory_buffer<T, SIZE, Allocator>> : std::true_type {
+};
+
/** A formatting error such as invalid format string. */
+FMT_CLASS_API
class FMT_API format_error : public std::runtime_error {
public:
explicit format_error(const char* message) : std::runtime_error(message) {}
@@ -700,43 +779,134 @@ class FMT_API format_error : public std::runtime_error {
~format_error() FMT_NOEXCEPT FMT_OVERRIDE;
};
-namespace internal {
+namespace detail {
+
+template <typename T>
+using is_signed =
+ std::integral_constant<bool, std::numeric_limits<T>::is_signed ||
+ std::is_same<T, int128_t>::value>;
// Returns true if value is negative, false otherwise.
// Same as `value < 0` but doesn't produce warnings if T is an unsigned type.
-template <typename T, FMT_ENABLE_IF(std::numeric_limits<T>::is_signed)>
+template <typename T, FMT_ENABLE_IF(is_signed<T>::value)>
FMT_CONSTEXPR bool is_negative(T value) {
return value < 0;
}
-template <typename T, FMT_ENABLE_IF(!std::numeric_limits<T>::is_signed)>
+template <typename T, FMT_ENABLE_IF(!is_signed<T>::value)>
FMT_CONSTEXPR bool is_negative(T) {
return false;
}
+template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
+FMT_CONSTEXPR bool is_supported_floating_point(T) {
+ return (std::is_same<T, float>::value && FMT_USE_FLOAT) ||
+ (std::is_same<T, double>::value && FMT_USE_DOUBLE) ||
+ (std::is_same<T, long double>::value && FMT_USE_LONG_DOUBLE);
+}
+
// Smallest of uint32_t, uint64_t, uint128_t that is large enough to
-// represent all values of T.
+// represent all values of an integral type T.
template <typename T>
-using uint32_or_64_or_128_t = conditional_t<
- std::numeric_limits<T>::digits <= 32, uint32_t,
- conditional_t<std::numeric_limits<T>::digits <= 64, uint64_t, uint128_t>>;
+using uint32_or_64_or_128_t =
+ conditional_t<num_bits<T>() <= 32 && !FMT_REDUCE_INT_INSTANTIATIONS,
+ uint32_t,
+ conditional_t<num_bits<T>() <= 64, uint64_t, uint128_t>>;
+
+// 128-bit integer type used internally
+struct FMT_EXTERN_TEMPLATE_API uint128_wrapper {
+ uint128_wrapper() = default;
+
+#if FMT_USE_INT128
+ uint128_t internal_;
+
+ uint128_wrapper(uint64_t high, uint64_t low) FMT_NOEXCEPT
+ : internal_{static_cast<uint128_t>(low) |
+ (static_cast<uint128_t>(high) << 64)} {}
+
+ uint128_wrapper(uint128_t u) : internal_{u} {}
+
+ uint64_t high() const FMT_NOEXCEPT { return uint64_t(internal_ >> 64); }
+ uint64_t low() const FMT_NOEXCEPT { return uint64_t(internal_); }
+
+ uint128_wrapper& operator+=(uint64_t n) FMT_NOEXCEPT {
+ internal_ += n;
+ return *this;
+ }
+#else
+ uint64_t high_;
+ uint64_t low_;
+
+ uint128_wrapper(uint64_t high, uint64_t low) FMT_NOEXCEPT : high_{high},
+ low_{low} {}
+
+ uint64_t high() const FMT_NOEXCEPT { return high_; }
+ uint64_t low() const FMT_NOEXCEPT { return low_; }
+
+ uint128_wrapper& operator+=(uint64_t n) FMT_NOEXCEPT {
+# if defined(_MSC_VER) && defined(_M_X64)
+ unsigned char carry = _addcarry_u64(0, low_, n, &low_);
+ _addcarry_u64(carry, high_, 0, &high_);
+ return *this;
+# else
+ uint64_t sum = low_ + n;
+ high_ += (sum < low_ ? 1 : 0);
+ low_ = sum;
+ return *this;
+# endif
+ }
+#endif
+};
+
+// Table entry type for divisibility test used internally
+template <typename T> struct FMT_EXTERN_TEMPLATE_API divtest_table_entry {
+ T mod_inv;
+ T max_quotient;
+};
// Static data is placed in this class template for the header-only config.
template <typename T = void> struct FMT_EXTERN_TEMPLATE_API basic_data {
static const uint64_t powers_of_10_64[];
static const uint32_t zero_or_powers_of_10_32[];
static const uint64_t zero_or_powers_of_10_64[];
- static const uint64_t pow10_significands[];
- static const int16_t pow10_exponents[];
- static const char digits[];
+ static const uint64_t grisu_pow10_significands[];
+ static const int16_t grisu_pow10_exponents[];
+ static const divtest_table_entry<uint32_t> divtest_table_for_pow5_32[];
+ static const divtest_table_entry<uint64_t> divtest_table_for_pow5_64[];
+ static const uint64_t dragonbox_pow10_significands_64[];
+ static const uint128_wrapper dragonbox_pow10_significands_128[];
+ // log10(2) = 0x0.4d104d427de7fbcc...
+ static const uint64_t log10_2_significand = 0x4d104d427de7fbcc;
+#if !FMT_USE_FULL_CACHE_DRAGONBOX
+ static const uint64_t powers_of_5_64[];
+ static const uint32_t dragonbox_pow10_recovery_errors[];
+#endif
+ // GCC generates slightly better code for pairs than chars.
+ using digit_pair = char[2];
+ static const digit_pair digits[];
static const char hex_digits[];
static const char foreground_color[];
static const char background_color[];
static const char reset_color[5];
static const wchar_t wreset_color[5];
static const char signs[];
+ static const char left_padding_shifts[5];
+ static const char right_padding_shifts[5];
};
+// Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)).
+// This is a function instead of an array to workaround a bug in GCC10 (#1810).
+FMT_INLINE uint16_t bsr2log10(int bsr) {
+ static constexpr uint16_t data[] = {
+ 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5,
+ 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10,
+ 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15,
+ 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20};
+ return data[bsr];
+}
+
+#ifndef FMT_EXPORTED
FMT_EXTERN template struct basic_data<void>;
+#endif
// This is a struct rather than an alias to avoid shadowing warnings in gcc.
struct data : basic_data<> {};
@@ -745,10 +915,9 @@ struct data : basic_data<> {};
// Returns the number of decimal digits in n. Leading zeros are not counted
// except for n == 0 in which case count_digits returns 1.
inline int count_digits(uint64_t n) {
- // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
- // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
- int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
- return t - (n < data::zero_or_powers_of_10_64[t]) + 1;
+ // https://github.com/fmtlib/format-benchmark/blob/master/digits10
+ auto t = bsr2log10(FMT_BUILTIN_CLZLL(n | 1) ^ 63);
+ return t - (n < data::zero_or_powers_of_10_64[t]);
}
#else
// Fallback version of count_digits used when __builtin_clz is not available.
@@ -794,22 +963,37 @@ template <unsigned BITS, typename UInt> inline int count_digits(UInt n) {
return num_digits;
}
-template <> int count_digits<4>(internal::fallback_uintptr n);
+template <> int count_digits<4>(detail::fallback_uintptr n);
#if FMT_GCC_VERSION || FMT_CLANG_VERSION
# define FMT_ALWAYS_INLINE inline __attribute__((always_inline))
+#elif FMT_MSC_VER
+# define FMT_ALWAYS_INLINE __forceinline
#else
-# define FMT_ALWAYS_INLINE
+# define FMT_ALWAYS_INLINE inline
+#endif
+
+// To suppress unnecessary security cookie checks
+#if FMT_MSC_VER && !FMT_CLANG_VERSION
+# define FMT_SAFEBUFFERS __declspec(safebuffers)
+#else
+# define FMT_SAFEBUFFERS
#endif
#ifdef FMT_BUILTIN_CLZ
// Optional version of count_digits for better performance on 32-bit platforms.
inline int count_digits(uint32_t n) {
- int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
- return t - (n < data::zero_or_powers_of_10_32[t]) + 1;
+ auto t = bsr2log10(FMT_BUILTIN_CLZ(n | 1) ^ 31);
+ return t - (n < data::zero_or_powers_of_10_32[t]);
}
#endif
+template <typename Int> constexpr int digits10() FMT_NOEXCEPT {
+ return std::numeric_limits<Int>::digits10;
+}
+template <> constexpr int digits10<int128_t>() FMT_NOEXCEPT { return 38; }
+template <> constexpr int digits10<uint128_t>() FMT_NOEXCEPT { return 38; }
+
template <typename Char> FMT_API std::string grouping_impl(locale_ref loc);
template <typename Char> inline std::string grouping(locale_ref loc) {
return grouping_impl<char>(loc);
@@ -834,57 +1018,60 @@ template <> inline wchar_t decimal_point(locale_ref loc) {
return decimal_point_impl<wchar_t>(loc);
}
-// Formats a decimal unsigned integer value writing into buffer.
-// add_thousands_sep is called after writing each char to add a thousands
-// separator if necessary.
-template <typename UInt, typename Char, typename F>
-inline Char* format_decimal(Char* buffer, UInt value, int num_digits,
- F add_thousands_sep) {
- FMT_ASSERT(num_digits >= 0, "invalid digit count");
- buffer += num_digits;
- Char* end = buffer;
+// Compares two characters for equality.
+template <typename Char> bool equal2(const Char* lhs, const char* rhs) {
+ return lhs[0] == rhs[0] && lhs[1] == rhs[1];
+}
+inline bool equal2(const char* lhs, const char* rhs) {
+ return memcmp(lhs, rhs, 2) == 0;
+}
+
+// Copies two characters from src to dst.
+template <typename Char> void copy2(Char* dst, const char* src) {
+ *dst++ = static_cast<Char>(*src++);
+ *dst = static_cast<Char>(*src);
+}
+FMT_INLINE void copy2(char* dst, const char* src) { memcpy(dst, src, 2); }
+
+template <typename Iterator> struct format_decimal_result {
+ Iterator begin;
+ Iterator end;
+};
+
+// Formats a decimal unsigned integer value writing into out pointing to a
+// buffer of specified size. The caller must ensure that the buffer is large
+// enough.
+template <typename Char, typename UInt>
+inline format_decimal_result<Char*> format_decimal(Char* out, UInt value,
+ int size) {
+ FMT_ASSERT(size >= count_digits(value), "invalid digit count");
+ out += size;
+ Char* end = out;
while (value >= 100) {
// Integer division is slow so do it for a group of two digits instead
// of for every digit. The idea comes from the talk by Alexandrescu
// "Three Optimization Tips for C++". See speed-test for a comparison.
- auto index = static_cast<unsigned>((value % 100) * 2);
+ out -= 2;
+ copy2(out, data::digits[value % 100]);
value /= 100;
- *--buffer = static_cast<Char>(data::digits[index + 1]);
- add_thousands_sep(buffer);
- *--buffer = static_cast<Char>(data::digits[index]);
- add_thousands_sep(buffer);
}
if (value < 10) {
- *--buffer = static_cast<Char>('0' + value);
- return end;
+ *--out = static_cast<Char>('0' + value);
+ return {out, end};
}
- auto index = static_cast<unsigned>(value * 2);
- *--buffer = static_cast<Char>(data::digits[index + 1]);
- add_thousands_sep(buffer);
- *--buffer = static_cast<Char>(data::digits[index]);
- return end;
+ out -= 2;
+ copy2(out, data::digits[value]);
+ return {out, end};
}
-template <typename Int> constexpr int digits10() noexcept {
- return std::numeric_limits<Int>::digits10;
-}
-template <> constexpr int digits10<int128_t>() noexcept { return 38; }
-template <> constexpr int digits10<uint128_t>() noexcept { return 38; }
-
-template <typename Char, typename UInt, typename Iterator, typename F>
-inline Iterator format_decimal(Iterator out, UInt value, int num_digits,
- F add_thousands_sep) {
- FMT_ASSERT(num_digits >= 0, "invalid digit count");
- // Buffer should be large enough to hold all digits (<= digits10 + 1).
- enum { max_size = digits10<UInt>() + 1 };
- Char buffer[2 * max_size];
- auto end = format_decimal(buffer, value, num_digits, add_thousands_sep);
- return internal::copy_str<Char>(buffer, end, out);
-}
-
-template <typename Char, typename It, typename UInt>
-inline It format_decimal(It out, UInt value, int num_digits) {
- return format_decimal<Char>(out, value, num_digits, [](Char*) {});
+template <typename Char, typename UInt, typename Iterator,
+ FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<Iterator>>::value)>
+inline format_decimal_result<Iterator> format_decimal(Iterator out, UInt value,
+ int size) {
+ // Buffer is large enough to hold all digits (digits10 + 1).
+ Char buffer[digits10<UInt>() + 1];
+ auto end = format_decimal(buffer, value, size).end;
+ return {out, detail::copy_str<Char>(buffer, end, out)};
}
template <unsigned BASE_BITS, typename Char, typename UInt>
@@ -902,7 +1089,7 @@ inline Char* format_uint(Char* buffer, UInt value, int num_digits,
}
template <unsigned BASE_BITS, typename Char>
-Char* format_uint(Char* buffer, internal::fallback_uintptr n, int num_digits,
+Char* format_uint(Char* buffer, detail::fallback_uintptr n, int num_digits,
bool = false) {
auto char_digits = std::numeric_limits<unsigned char>::digits / 4;
int start = (num_digits + char_digits - 1) / char_digits - 1;
@@ -925,67 +1112,52 @@ Char* format_uint(Char* buffer, internal::fallback_uintptr n, int num_digits,
template <unsigned BASE_BITS, typename Char, typename It, typename UInt>
inline It format_uint(It out, UInt value, int num_digits, bool upper = false) {
+ if (auto ptr = to_pointer<Char>(out, to_unsigned(num_digits))) {
+ format_uint<BASE_BITS>(ptr, value, num_digits, upper);
+ return out;
+ }
// Buffer should be large enough to hold all digits (digits / BASE_BITS + 1).
char buffer[num_bits<UInt>() / BASE_BITS + 1];
format_uint<BASE_BITS>(buffer, value, num_digits, upper);
- return internal::copy_str<Char>(buffer, buffer + num_digits, out);
+ return detail::copy_str<Char>(buffer, buffer + num_digits, out);
}
-#ifndef _WIN32
-# define FMT_USE_WINDOWS_H 0
-#elif !defined(FMT_USE_WINDOWS_H)
-# define FMT_USE_WINDOWS_H 1
-#endif
-
-// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
-// All the functionality that relies on it will be disabled too.
-#if FMT_USE_WINDOWS_H
// A converter from UTF-8 to UTF-16.
-// It is only provided for Windows since other systems support UTF-8 natively.
class utf8_to_utf16 {
private:
wmemory_buffer buffer_;
public:
FMT_API explicit utf8_to_utf16(string_view s);
- operator wstring_view() const { return wstring_view(&buffer_[0], size()); }
+ operator wstring_view() const { return {&buffer_[0], size()}; }
size_t size() const { return buffer_.size() - 1; }
const wchar_t* c_str() const { return &buffer_[0]; }
- std::wstring str() const { return std::wstring(&buffer_[0], size()); }
+ std::wstring str() const { return {&buffer_[0], size()}; }
};
-// A converter from UTF-16 to UTF-8.
-// It is only provided for Windows since other systems support UTF-8 natively.
-class utf16_to_utf8 {
- private:
- memory_buffer buffer_;
-
- public:
- utf16_to_utf8() {}
- FMT_API explicit utf16_to_utf8(wstring_view s);
- operator string_view() const { return string_view(&buffer_[0], size()); }
- size_t size() const { return buffer_.size() - 1; }
- const char* c_str() const { return &buffer_[0]; }
- std::string str() const { return std::string(&buffer_[0], size()); }
-
- // Performs conversion returning a system error code instead of
- // throwing exception on conversion error. This method may still throw
- // in case of memory allocation error.
- FMT_API int convert(wstring_view s);
-};
-
-FMT_API void format_windows_error(internal::buffer<char>& out, int error_code,
- string_view message) FMT_NOEXCEPT;
-#endif
-
template <typename T = void> struct null {};
// Workaround an array initialization issue in gcc 4.8.
template <typename Char> struct fill_t {
private:
- Char data_[6];
+ enum { max_size = 4 };
+ Char data_[max_size];
+ unsigned char size_;
public:
+ FMT_CONSTEXPR void operator=(basic_string_view<Char> s) {
+ auto size = s.size();
+ if (size > max_size) {
+ FMT_THROW(format_error("invalid fill"));
+ return;
+ }
+ for (size_t i = 0; i < size; ++i) data_[i] = s[i];
+ size_ = static_cast<unsigned char>(size);
+ }
+
+ size_t size() const { return size_; }
+ const Char* data() const { return data_; }
+
FMT_CONSTEXPR Char& operator[](size_t index) { return data_[index]; }
FMT_CONSTEXPR const Char& operator[](size_t index) const {
return data_[index];
@@ -994,10 +1166,11 @@ template <typename Char> struct fill_t {
static FMT_CONSTEXPR fill_t<Char> make() {
auto fill = fill_t<Char>();
fill[0] = Char(' ');
+ fill.size_ = 1;
return fill;
}
};
-} // namespace internal
+} // namespace detail
// We cannot use enum classes as bit fields because of a gcc bug
// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414.
@@ -1019,7 +1192,7 @@ template <typename Char> struct basic_format_specs {
align_t align : 4;
sign_t sign : 3;
bool alt : 1; // Alternate form ('#').
- internal::fill_t<Char> fill;
+ detail::fill_t<Char> fill;
constexpr basic_format_specs()
: width(0),
@@ -1028,12 +1201,84 @@ template <typename Char> struct basic_format_specs {
align(align::none),
sign(sign::none),
alt(false),
- fill(internal::fill_t<Char>::make()) {}
+ fill(detail::fill_t<Char>::make()) {}
};
using format_specs = basic_format_specs<char>;
-namespace internal {
+namespace detail {
+namespace dragonbox {
+
+// Type-specific information that Dragonbox uses.
+template <class T> struct float_info;
+
+template <> struct float_info<float> {
+ using carrier_uint = uint32_t;
+ static const int significand_bits = 23;
+ static const int exponent_bits = 8;
+ static const int min_exponent = -126;
+ static const int max_exponent = 127;
+ static const int exponent_bias = -127;
+ static const int decimal_digits = 9;
+ static const int kappa = 1;
+ static const int big_divisor = 100;
+ static const int small_divisor = 10;
+ static const int min_k = -31;
+ static const int max_k = 46;
+ static const int cache_bits = 64;
+ static const int divisibility_check_by_5_threshold = 39;
+ static const int case_fc_pm_half_lower_threshold = -1;
+ static const int case_fc_pm_half_upper_threshold = 6;
+ static const int case_fc_lower_threshold = -2;
+ static const int case_fc_upper_threshold = 6;
+ static const int case_shorter_interval_left_endpoint_lower_threshold = 2;
+ static const int case_shorter_interval_left_endpoint_upper_threshold = 3;
+ static const int shorter_interval_tie_lower_threshold = -35;
+ static const int shorter_interval_tie_upper_threshold = -35;
+ static const int max_trailing_zeros = 7;
+};
+
+template <> struct float_info<double> {
+ using carrier_uint = uint64_t;
+ static const int significand_bits = 52;
+ static const int exponent_bits = 11;
+ static const int min_exponent = -1022;
+ static const int max_exponent = 1023;
+ static const int exponent_bias = -1023;
+ static const int decimal_digits = 17;
+ static const int kappa = 2;
+ static const int big_divisor = 1000;
+ static const int small_divisor = 100;
+ static const int min_k = -292;
+ static const int max_k = 326;
+ static const int cache_bits = 128;
+ static const int divisibility_check_by_5_threshold = 86;
+ static const int case_fc_pm_half_lower_threshold = -2;
+ static const int case_fc_pm_half_upper_threshold = 9;
+ static const int case_fc_lower_threshold = -4;
+ static const int case_fc_upper_threshold = 9;
+ static const int case_shorter_interval_left_endpoint_lower_threshold = 2;
+ static const int case_shorter_interval_left_endpoint_upper_threshold = 3;
+ static const int shorter_interval_tie_lower_threshold = -77;
+ static const int shorter_interval_tie_upper_threshold = -77;
+ static const int max_trailing_zeros = 16;
+};
+
+template <typename T> struct decimal_fp {
+ using significand_type = typename float_info<T>::carrier_uint;
+ significand_type significand;
+ int exponent;
+};
+
+template <typename T> decimal_fp<T> to_decimal(T x) FMT_NOEXCEPT;
+} // namespace dragonbox
+
+template <typename T>
+constexpr typename dragonbox::float_info<T>::carrier_uint exponent_mask() {
+ using uint_type = typename dragonbox::float_info<T>::carrier_uint;
+ return ((uint_type(1) << dragonbox::float_info<T>::exponent_bits) - 1)
+ << dragonbox::float_info<T>::significand_bits;
+}
// A floating-point presentation format.
enum class float_format : unsigned char {
@@ -1049,10 +1294,9 @@ struct float_specs {
sign_t sign : 8;
bool upper : 1;
bool locale : 1;
- bool percent : 1;
bool binary32 : 1;
bool use_grisu : 1;
- bool trailing_zeros : 1;
+ bool showpoint : 1;
};
// Writes the exponent exp in the form "[+-]d{2,3}" to buffer.
@@ -1065,123 +1309,17 @@ template <typename Char, typename It> It write_exponent(int exp, It it) {
*it++ = static_cast<Char>('+');
}
if (exp >= 100) {
- const char* top = data::digits + (exp / 100) * 2;
+ const char* top = data::digits[exp / 100];
if (exp >= 1000) *it++ = static_cast<Char>(top[0]);
*it++ = static_cast<Char>(top[1]);
exp %= 100;
}
- const char* d = data::digits + exp * 2;
+ const char* d = data::digits[exp];
*it++ = static_cast<Char>(d[0]);
*it++ = static_cast<Char>(d[1]);
return it;
}
-template <typename Char> class float_writer {
- private:
- // The number is given as v = digits_ * pow(10, exp_).
- const char* digits_;
- int num_digits_;
- int exp_;
- size_t size_;
- float_specs specs_;
- Char decimal_point_;
-
- template <typename It> It prettify(It it) const {
- // pow(10, full_exp - 1) <= v <= pow(10, full_exp).
- int full_exp = num_digits_ + exp_;
- if (specs_.format == float_format::exp) {
- // Insert a decimal point after the first digit and add an exponent.
- *it++ = static_cast<Char>(*digits_);
- int num_zeros = specs_.precision - num_digits_;
- bool trailing_zeros = num_zeros > 0 && specs_.trailing_zeros;
- if (num_digits_ > 1 || trailing_zeros) *it++ = decimal_point_;
- it = copy_str<Char>(digits_ + 1, digits_ + num_digits_, it);
- if (trailing_zeros)
- it = std::fill_n(it, num_zeros, static_cast<Char>('0'));
- *it++ = static_cast<Char>(specs_.upper ? 'E' : 'e');
- return write_exponent<Char>(full_exp - 1, it);
- }
- if (num_digits_ <= full_exp) {
- // 1234e7 -> 12340000000[.0+]
- it = copy_str<Char>(digits_, digits_ + num_digits_, it);
- it = std::fill_n(it, full_exp - num_digits_, static_cast<Char>('0'));
- if (specs_.trailing_zeros) {
- *it++ = decimal_point_;
- int num_zeros = specs_.precision - full_exp;
- if (num_zeros <= 0) {
- if (specs_.format != float_format::fixed)
- *it++ = static_cast<Char>('0');
- return it;
- }
-#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
- if (num_zeros > 1000)
- throw std::runtime_error("fuzz mode - avoiding excessive cpu use");
-#endif
- it = std::fill_n(it, num_zeros, static_cast<Char>('0'));
- }
- } else if (full_exp > 0) {
- // 1234e-2 -> 12.34[0+]
- it = copy_str<Char>(digits_, digits_ + full_exp, it);
- if (!specs_.trailing_zeros) {
- // Remove trailing zeros.
- int num_digits = num_digits_;
- while (num_digits > full_exp && digits_[num_digits - 1] == '0')
- --num_digits;
- if (num_digits != full_exp) *it++ = decimal_point_;
- return copy_str<Char>(digits_ + full_exp, digits_ + num_digits, it);
- }
- *it++ = decimal_point_;
- it = copy_str<Char>(digits_ + full_exp, digits_ + num_digits_, it);
- if (specs_.precision > num_digits_) {
- // Add trailing zeros.
- int num_zeros = specs_.precision - num_digits_;
- it = std::fill_n(it, num_zeros, static_cast<Char>('0'));
- }
- } else {
- // 1234e-6 -> 0.001234
- *it++ = static_cast<Char>('0');
- int num_zeros = -full_exp;
- if (specs_.precision >= 0 && specs_.precision < num_zeros)
- num_zeros = specs_.precision;
- int num_digits = num_digits_;
- if (!specs_.trailing_zeros)
- while (num_digits > 0 && digits_[num_digits - 1] == '0') --num_digits;
- if (num_zeros != 0 || num_digits != 0) {
- *it++ = decimal_point_;
- it = std::fill_n(it, num_zeros, static_cast<Char>('0'));
- it = copy_str<Char>(digits_, digits_ + num_digits, it);
- }
- }
- return it;
- }
-
- public:
- float_writer(const char* digits, int num_digits, int exp, float_specs specs,
- Char decimal_point)
- : digits_(digits),
- num_digits_(num_digits),
- exp_(exp),
- specs_(specs),
- decimal_point_(decimal_point) {
- int full_exp = num_digits + exp - 1;
- int precision = specs.precision > 0 ? specs.precision : 16;
- if (specs_.format == float_format::general &&
- !(full_exp >= -4 && full_exp < precision)) {
- specs_.format = float_format::exp;
- }
- size_ = prettify(counting_iterator()).count();
- size_ += specs.sign ? 1 : 0;
- }
-
- size_t size() const { return size_; }
- size_t width() const { return size(); }
-
- template <typename It> void operator()(It&& it) {
- if (specs_.sign) *it++ = static_cast<Char>(data::signs[specs_.sign]);
- it = prettify(it);
- }
-};
-
template <typename T>
int format_float(T value, int precision, float_specs specs, buffer<char>& buf);
@@ -1191,7 +1329,7 @@ int snprintf_float(T value, int precision, float_specs specs,
buffer<char>& buf);
template <typename T> T promote_float(T value) { return value; }
-inline double promote_float(float value) { return value; }
+inline double promote_float(float value) { return static_cast<double>(value); }
template <typename Handler>
FMT_CONSTEXPR void handle_int_type_spec(char spec, Handler&& handler) {
@@ -1211,9 +1349,15 @@ FMT_CONSTEXPR void handle_int_type_spec(char spec, Handler&& handler) {
case 'o':
handler.on_oct();
break;
+#ifdef FMT_DEPRECATED_N_SPECIFIER
case 'n':
+#endif
+ case 'L':
handler.on_num();
break;
+ case 'c':
+ handler.on_chr();
+ break;
default:
handler.on_error();
}
@@ -1223,11 +1367,11 @@ template <typename ErrorHandler = error_handler, typename Char>
FMT_CONSTEXPR float_specs parse_float_type_spec(
const basic_format_specs<Char>& specs, ErrorHandler&& eh = {}) {
auto result = float_specs();
- result.trailing_zeros = specs.alt;
+ result.showpoint = specs.alt;
switch (specs.type) {
case 0:
result.format = float_format::general;
- result.trailing_zeros |= specs.precision != 0;
+ result.showpoint |= specs.precision > 0;
break;
case 'G':
result.upper = true;
@@ -1240,28 +1384,25 @@ FMT_CONSTEXPR float_specs parse_float_type_spec(
FMT_FALLTHROUGH;
case 'e':
result.format = float_format::exp;
- result.trailing_zeros |= specs.precision != 0;
+ result.showpoint |= specs.precision != 0;
break;
case 'F':
result.upper = true;
FMT_FALLTHROUGH;
case 'f':
result.format = float_format::fixed;
- result.trailing_zeros |= specs.precision != 0;
+ result.showpoint |= specs.precision != 0;
break;
-#if FMT_DEPRECATED_PERCENT
- case '%':
- result.format = float_format::fixed;
- result.percent = true;
- break;
-#endif
case 'A':
result.upper = true;
FMT_FALLTHROUGH;
case 'a':
result.format = float_format::hex;
break;
+#ifdef FMT_DEPRECATED_N_SPECIFIER
case 'n':
+#endif
+ case 'L':
result.locale = true;
break;
default:
@@ -1310,6 +1451,7 @@ template <typename ErrorHandler> class int_type_checker : private ErrorHandler {
FMT_CONSTEXPR void on_bin() {}
FMT_CONSTEXPR void on_oct() {}
FMT_CONSTEXPR void on_num() {}
+ FMT_CONSTEXPR void on_chr() {}
FMT_CONSTEXPR void on_error() {
ErrorHandler::on_error("invalid type specifier");
@@ -1341,386 +1483,669 @@ class cstring_type_checker : public ErrorHandler {
FMT_CONSTEXPR void on_pointer() {}
};
-template <typename Context>
-void arg_map<Context>::init(const basic_format_args<Context>& args) {
- if (map_) return;
- map_ = new entry[internal::to_unsigned(args.max_size())];
- if (args.is_packed()) {
- for (int i = 0;; ++i) {
- internal::type arg_type = args.type(i);
- if (arg_type == internal::none_type) return;
- if (arg_type == internal::named_arg_type) push_back(args.values_[i]);
- }
- }
- for (int i = 0, n = args.max_size(); i < n; ++i) {
- auto type = args.args_[i].type_;
- if (type == internal::named_arg_type) push_back(args.args_[i].value_);
- }
+template <typename OutputIt, typename Char>
+FMT_NOINLINE OutputIt fill(OutputIt it, size_t n, const fill_t<Char>& fill) {
+ auto fill_size = fill.size();
+ if (fill_size == 1) return std::fill_n(it, n, fill[0]);
+ for (size_t i = 0; i < n; ++i) it = std::copy_n(fill.data(), fill_size, it);
+ return it;
}
-template <typename Char> struct nonfinite_writer {
- sign_t sign;
- const char* str;
- static constexpr size_t str_size = 3;
+// Writes the output of f, padded according to format specifications in specs.
+// size: output size in code units.
+// width: output display width in (terminal) column positions.
+template <align::type align = align::left, typename OutputIt, typename Char,
+ typename F>
+inline OutputIt write_padded(OutputIt out,
+ const basic_format_specs<Char>& specs, size_t size,
+ size_t width, F&& f) {
+ static_assert(align == align::left || align == align::right, "");
+ unsigned spec_width = to_unsigned(specs.width);
+ size_t padding = spec_width > width ? spec_width - width : 0;
+ auto* shifts = align == align::left ? data::left_padding_shifts
+ : data::right_padding_shifts;
+ size_t left_padding = padding >> shifts[specs.align];
+ auto it = reserve(out, size + padding * specs.fill.size());
+ it = fill(it, left_padding, specs.fill);
+ it = f(it);
+ it = fill(it, padding - left_padding, specs.fill);
+ return base_iterator(out, it);
+}
- size_t size() const { return str_size + (sign ? 1 : 0); }
- size_t width() const { return size(); }
+template <align::type align = align::left, typename OutputIt, typename Char,
+ typename F>
+inline OutputIt write_padded(OutputIt out,
+ const basic_format_specs<Char>& specs, size_t size,
+ F&& f) {
+ return write_padded<align>(out, specs, size, size, f);
+}
- template <typename It> void operator()(It&& it) const {
- if (sign) *it++ = static_cast<Char>(data::signs[sign]);
- it = copy_str<Char>(str, str + str_size, it);
- }
-};
+template <typename Char, typename OutputIt>
+OutputIt write_bytes(OutputIt out, string_view bytes,
+ const basic_format_specs<Char>& specs) {
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ return write_padded(out, specs, bytes.size(), [bytes](iterator it) {
+ const char* data = bytes.data();
+ return copy_str<Char>(data, data + bytes.size(), it);
+ });
+}
-// This template provides operations for formatting and writing data into a
-// character range.
-template <typename Range> class basic_writer {
- public:
- using char_type = typename Range::value_type;
- using iterator = typename Range::iterator;
- using format_specs = basic_format_specs<char_type>;
+// Data for write_int that doesn't depend on output iterator type. It is used to
+// avoid template code bloat.
+template <typename Char> struct write_int_data {
+ size_t size;
+ size_t padding;
- private:
- iterator out_; // Output iterator.
- locale_ref locale_;
-
- // Attempts to reserve space for n extra characters in the output range.
- // Returns a pointer to the reserved range or a reference to out_.
- auto reserve(std::size_t n) -> decltype(internal::reserve(out_, n)) {
- return internal::reserve(out_, n);
- }
-
- template <typename F> struct padded_int_writer {
- size_t size_;
- string_view prefix;
- char_type fill;
- std::size_t padding;
- F f;
-
- size_t size() const { return size_; }
- size_t width() const { return size_; }
-
- template <typename It> void operator()(It&& it) const {
- if (prefix.size() != 0)
- it = copy_str<char_type>(prefix.begin(), prefix.end(), it);
- it = std::fill_n(it, padding, fill);
- f(it);
- }
- };
-
- // Writes an integer in the format
- // <left-padding><prefix><numeric-padding><digits><right-padding>
- // where <digits> are written by f(it).
- template <typename F>
- void write_int(int num_digits, string_view prefix, format_specs specs, F f) {
- std::size_t size = prefix.size() + to_unsigned(num_digits);
- char_type fill = specs.fill[0];
- std::size_t padding = 0;
+ write_int_data(int num_digits, string_view prefix,
+ const basic_format_specs<Char>& specs)
+ : size(prefix.size() + to_unsigned(num_digits)), padding(0) {
if (specs.align == align::numeric) {
- auto unsiged_width = to_unsigned(specs.width);
- if (unsiged_width > size) {
- padding = unsiged_width - size;
- size = unsiged_width;
+ auto width = to_unsigned(specs.width);
+ if (width > size) {
+ padding = width - size;
+ size = width;
}
} else if (specs.precision > num_digits) {
size = prefix.size() + to_unsigned(specs.precision);
padding = to_unsigned(specs.precision - num_digits);
- fill = static_cast<char_type>('0');
}
- if (specs.align == align::none) specs.align = align::right;
- write_padded(specs, padded_int_writer<F>{size, prefix, fill, padding, f});
+ }
+};
+
+// Writes an integer in the format
+// <left-padding><prefix><numeric-padding><digits><right-padding>
+// where <digits> are written by f(it).
+template <typename OutputIt, typename Char, typename F>
+OutputIt write_int(OutputIt out, int num_digits, string_view prefix,
+ const basic_format_specs<Char>& specs, F f) {
+ auto data = write_int_data<Char>(num_digits, prefix, specs);
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ return write_padded<align::right>(out, specs, data.size, [=](iterator it) {
+ if (prefix.size() != 0)
+ it = copy_str<Char>(prefix.begin(), prefix.end(), it);
+ it = std::fill_n(it, data.padding, static_cast<Char>('0'));
+ return f(it);
+ });
+}
+
+template <typename StrChar, typename Char, typename OutputIt>
+OutputIt write(OutputIt out, basic_string_view<StrChar> s,
+ const basic_format_specs<Char>& specs) {
+ auto data = s.data();
+ auto size = s.size();
+ if (specs.precision >= 0 && to_unsigned(specs.precision) < size)
+ size = code_point_index(s, to_unsigned(specs.precision));
+ auto width = specs.width != 0
+ ? count_code_points(basic_string_view<StrChar>(data, size))
+ : 0;
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ return write_padded(out, specs, size, width, [=](iterator it) {
+ return copy_str<Char>(data, data + size, it);
+ });
+}
+
+// The handle_int_type_spec handler that writes an integer.
+template <typename OutputIt, typename Char, typename UInt> struct int_writer {
+ OutputIt out;
+ locale_ref locale;
+ const basic_format_specs<Char>& specs;
+ UInt abs_value;
+ char prefix[4];
+ unsigned prefix_size;
+
+ using iterator =
+ remove_reference_t<decltype(reserve(std::declval<OutputIt&>(), 0))>;
+
+ string_view get_prefix() const { return string_view(prefix, prefix_size); }
+
+ template <typename Int>
+ int_writer(OutputIt output, locale_ref loc, Int value,
+ const basic_format_specs<Char>& s)
+ : out(output),
+ locale(loc),
+ specs(s),
+ abs_value(static_cast<UInt>(value)),
+ prefix_size(0) {
+ static_assert(std::is_same<uint32_or_64_or_128_t<Int>, UInt>::value, "");
+ if (is_negative(value)) {
+ prefix[0] = '-';
+ ++prefix_size;
+ abs_value = 0 - abs_value;
+ } else if (specs.sign != sign::none && specs.sign != sign::minus) {
+ prefix[0] = specs.sign == sign::plus ? '+' : ' ';
+ ++prefix_size;
+ }
}
- // Writes a decimal integer.
- template <typename Int> void write_decimal(Int value) {
- auto abs_value = static_cast<uint32_or_64_or_128_t<Int>>(value);
- bool negative = is_negative(value);
- // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer.
- if (negative) abs_value = ~abs_value + 1;
+ void on_dec() {
+ auto num_digits = count_digits(abs_value);
+ out = write_int(
+ out, num_digits, get_prefix(), specs, [this, num_digits](iterator it) {
+ return format_decimal<Char>(it, abs_value, num_digits).end;
+ });
+ }
+
+ void on_hex() {
+ if (specs.alt) {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = specs.type;
+ }
+ int num_digits = count_digits<4>(abs_value);
+ out = write_int(out, num_digits, get_prefix(), specs,
+ [this, num_digits](iterator it) {
+ return format_uint<4, Char>(it, abs_value, num_digits,
+ specs.type != 'x');
+ });
+ }
+
+ void on_bin() {
+ if (specs.alt) {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = static_cast<char>(specs.type);
+ }
+ int num_digits = count_digits<1>(abs_value);
+ out = write_int(out, num_digits, get_prefix(), specs,
+ [this, num_digits](iterator it) {
+ return format_uint<1, Char>(it, abs_value, num_digits);
+ });
+ }
+
+ void on_oct() {
+ int num_digits = count_digits<3>(abs_value);
+ if (specs.alt && specs.precision <= num_digits && abs_value != 0) {
+ // Octal prefix '0' is counted as a digit, so only add it if precision
+ // is not greater than the number of digits.
+ prefix[prefix_size++] = '0';
+ }
+ out = write_int(out, num_digits, get_prefix(), specs,
+ [this, num_digits](iterator it) {
+ return format_uint<3, Char>(it, abs_value, num_digits);
+ });
+ }
+
+ enum { sep_size = 1 };
+
+ void on_num() {
+ std::string groups = grouping<Char>(locale);
+ if (groups.empty()) return on_dec();
+ auto sep = thousands_sep<Char>(locale);
+ if (!sep) return on_dec();
int num_digits = count_digits(abs_value);
- auto&& it = reserve((negative ? 1 : 0) + static_cast<size_t>(num_digits));
- if (negative) *it++ = static_cast<char_type>('-');
- it = format_decimal<char_type>(it, abs_value, num_digits);
- }
-
- // The handle_int_type_spec handler that writes an integer.
- template <typename Int, typename Specs> struct int_writer {
- using unsigned_type = uint32_or_64_or_128_t<Int>;
-
- basic_writer<Range>& writer;
- const Specs& specs;
- unsigned_type abs_value;
- char prefix[4];
- unsigned prefix_size;
-
- string_view get_prefix() const { return string_view(prefix, prefix_size); }
-
- int_writer(basic_writer<Range>& w, Int value, const Specs& s)
- : writer(w),
- specs(s),
- abs_value(static_cast<unsigned_type>(value)),
- prefix_size(0) {
- if (is_negative(value)) {
- prefix[0] = '-';
- ++prefix_size;
- abs_value = 0 - abs_value;
- } else if (specs.sign != sign::none && specs.sign != sign::minus) {
- prefix[0] = specs.sign == sign::plus ? '+' : ' ';
- ++prefix_size;
- }
+ int size = num_digits, n = num_digits;
+ std::string::const_iterator group = groups.cbegin();
+ while (group != groups.cend() && n > *group && *group > 0 &&
+ *group != max_value<char>()) {
+ size += sep_size;
+ n -= *group;
+ ++group;
}
-
- struct dec_writer {
- unsigned_type abs_value;
- int num_digits;
-
- template <typename It> void operator()(It&& it) const {
- it = internal::format_decimal<char_type>(it, abs_value, num_digits);
- }
- };
-
- void on_dec() {
- int num_digits = count_digits(abs_value);
- writer.write_int(num_digits, get_prefix(), specs,
- dec_writer{abs_value, num_digits});
- }
-
- struct hex_writer {
- int_writer& self;
- int num_digits;
-
- template <typename It> void operator()(It&& it) const {
- it = format_uint<4, char_type>(it, self.abs_value, num_digits,
- self.specs.type != 'x');
- }
- };
-
- void on_hex() {
- if (specs.alt) {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = specs.type;
- }
- int num_digits = count_digits<4>(abs_value);
- writer.write_int(num_digits, get_prefix(), specs,
- hex_writer{*this, num_digits});
- }
-
- template <int BITS> struct bin_writer {
- unsigned_type abs_value;
- int num_digits;
-
- template <typename It> void operator()(It&& it) const {
- it = format_uint<BITS, char_type>(it, abs_value, num_digits);
- }
- };
-
- void on_bin() {
- if (specs.alt) {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = static_cast<char>(specs.type);
- }
- int num_digits = count_digits<1>(abs_value);
- writer.write_int(num_digits, get_prefix(), specs,
- bin_writer<1>{abs_value, num_digits});
- }
-
- void on_oct() {
- int num_digits = count_digits<3>(abs_value);
- if (specs.alt && specs.precision <= num_digits && abs_value != 0) {
- // Octal prefix '0' is counted as a digit, so only add it if precision
- // is not greater than the number of digits.
- prefix[prefix_size++] = '0';
- }
- writer.write_int(num_digits, get_prefix(), specs,
- bin_writer<3>{abs_value, num_digits});
- }
-
- enum { sep_size = 1 };
-
- struct num_writer {
- unsigned_type abs_value;
- int size;
- const std::string& groups;
- char_type sep;
-
- template <typename It> void operator()(It&& it) const {
- basic_string_view<char_type> s(&sep, sep_size);
- // Index of a decimal digit with the least significant digit having
- // index 0.
- int digit_index = 0;
- std::string::const_iterator group = groups.cbegin();
- it = format_decimal<char_type>(
- it, abs_value, size,
- [this, s, &group, &digit_index](char_type*& buffer) {
- if (*group <= 0 || ++digit_index % *group != 0 ||
- *group == max_value<char>())
- return;
- if (group + 1 != groups.cend()) {
- digit_index = 0;
- ++group;
- }
- buffer -= s.size();
- std::uninitialized_copy(s.data(), s.data() + s.size(),
- make_checked(buffer, s.size()));
- });
- }
- };
-
- void on_num() {
- std::string groups = grouping<char_type>(writer.locale_);
- if (groups.empty()) return on_dec();
- auto sep = thousands_sep<char_type>(writer.locale_);
- if (!sep) return on_dec();
- int num_digits = count_digits(abs_value);
- int size = num_digits;
- std::string::const_iterator group = groups.cbegin();
- while (group != groups.cend() && num_digits > *group && *group > 0 &&
- *group != max_value<char>()) {
- size += sep_size;
- num_digits -= *group;
+ if (group == groups.cend()) size += sep_size * ((n - 1) / groups.back());
+ char digits[40];
+ format_decimal(digits, abs_value, num_digits);
+ basic_memory_buffer<Char> buffer;
+ size += static_cast<int>(prefix_size);
+ const auto usize = to_unsigned(size);
+ buffer.resize(usize);
+ basic_string_view<Char> s(&sep, sep_size);
+ // Index of a decimal digit with the least significant digit having index 0.
+ int digit_index = 0;
+ group = groups.cbegin();
+ auto p = buffer.data() + size - 1;
+ for (int i = num_digits - 1; i > 0; --i) {
+ *p-- = static_cast<Char>(digits[i]);
+ if (*group <= 0 || ++digit_index % *group != 0 ||
+ *group == max_value<char>())
+ continue;
+ if (group + 1 != groups.cend()) {
+ digit_index = 0;
++group;
}
- if (group == groups.cend())
- size += sep_size * ((num_digits - 1) / groups.back());
- writer.write_int(size, get_prefix(), specs,
- num_writer{abs_value, size, groups, sep});
- }
-
- FMT_NORETURN void on_error() {
- FMT_THROW(format_error("invalid type specifier"));
- }
- };
-
- template <typename Char> struct str_writer {
- const Char* s;
- size_t size_;
-
- size_t size() const { return size_; }
- size_t width() const {
- return count_code_points(basic_string_view<Char>(s, size_));
- }
-
- template <typename It> void operator()(It&& it) const {
- it = copy_str<char_type>(s, s + size_, it);
- }
- };
-
- template <typename UIntPtr> struct pointer_writer {
- UIntPtr value;
- int num_digits;
-
- size_t size() const { return to_unsigned(num_digits) + 2; }
- size_t width() const { return size(); }
-
- template <typename It> void operator()(It&& it) const {
- *it++ = static_cast<char_type>('0');
- *it++ = static_cast<char_type>('x');
- it = format_uint<4, char_type>(it, value, num_digits);
- }
- };
-
- public:
- explicit basic_writer(Range out, locale_ref loc = locale_ref())
- : out_(out.begin()), locale_(loc) {}
-
- iterator out() const { return out_; }
-
- // Writes a value in the format
- // <left-padding><value><right-padding>
- // where <value> is written by f(it).
- template <typename F> void write_padded(const format_specs& specs, F&& f) {
- // User-perceived width (in code points).
- unsigned width = to_unsigned(specs.width);
- size_t size = f.size(); // The number of code units.
- size_t num_code_points = width != 0 ? f.width() : size;
- if (width <= num_code_points) return f(reserve(size));
- auto&& it = reserve(width + (size - num_code_points));
- char_type fill = specs.fill[0];
- std::size_t padding = width - num_code_points;
- if (specs.align == align::right) {
- it = std::fill_n(it, padding, fill);
- f(it);
- } else if (specs.align == align::center) {
- std::size_t left_padding = padding / 2;
- it = std::fill_n(it, left_padding, fill);
- f(it);
- it = std::fill_n(it, padding - left_padding, fill);
- } else {
- f(it);
- it = std::fill_n(it, padding, fill);
+ std::uninitialized_copy(s.data(), s.data() + s.size(),
+ make_checked(p, s.size()));
+ p -= s.size();
}
+ *p-- = static_cast<Char>(*digits);
+ if (prefix_size != 0) *p = static_cast<Char>('-');
+ auto data = buffer.data();
+ out = write_padded<align::right>(
+ out, specs, usize, usize,
+ [=](iterator it) { return copy_str<Char>(data, data + size, it); });
}
- void write(int value) { write_decimal(value); }
- void write(long value) { write_decimal(value); }
- void write(long long value) { write_decimal(value); }
+ void on_chr() { *out++ = static_cast<Char>(abs_value); }
- void write(unsigned value) { write_decimal(value); }
- void write(unsigned long value) { write_decimal(value); }
- void write(unsigned long long value) { write_decimal(value); }
+ FMT_NORETURN void on_error() {
+ FMT_THROW(format_error("invalid type specifier"));
+ }
+};
-#if FMT_USE_INT128
- void write(int128_t value) { write_decimal(value); }
- void write(uint128_t value) { write_decimal(value); }
+template <typename Char, typename OutputIt>
+OutputIt write_nonfinite(OutputIt out, bool isinf,
+ const basic_format_specs<Char>& specs,
+ const float_specs& fspecs) {
+ auto str =
+ isinf ? (fspecs.upper ? "INF" : "inf") : (fspecs.upper ? "NAN" : "nan");
+ constexpr size_t str_size = 3;
+ auto sign = fspecs.sign;
+ auto size = str_size + (sign ? 1 : 0);
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ return write_padded(out, specs, size, [=](iterator it) {
+ if (sign) *it++ = static_cast<Char>(data::signs[sign]);
+ return copy_str<Char>(str, str + str_size, it);
+ });
+}
+
+// A decimal floating-point number significand * pow(10, exp).
+struct big_decimal_fp {
+ const char* significand;
+ int significand_size;
+ int exponent;
+};
+
+inline int get_significand_size(const big_decimal_fp& fp) {
+ return fp.significand_size;
+}
+template <typename T>
+inline int get_significand_size(const dragonbox::decimal_fp<T>& fp) {
+ return count_digits(fp.significand);
+}
+
+template <typename Char, typename OutputIt>
+inline OutputIt write_significand(OutputIt out, const char* significand,
+ int& significand_size) {
+ return copy_str<Char>(significand, significand + significand_size, out);
+}
+template <typename Char, typename OutputIt, typename UInt>
+inline OutputIt write_significand(OutputIt out, UInt significand,
+ int significand_size) {
+ return format_decimal<Char>(out, significand, significand_size).end;
+}
+
+template <typename Char, typename UInt,
+ FMT_ENABLE_IF(std::is_integral<UInt>::value)>
+inline Char* write_significand(Char* out, UInt significand,
+ int significand_size, int integral_size,
+ Char decimal_point) {
+ if (!decimal_point)
+ return format_decimal(out, significand, significand_size).end;
+ auto end = format_decimal(out + 1, significand, significand_size).end;
+ if (integral_size == 1)
+ out[0] = out[1];
+ else
+ std::copy_n(out + 1, integral_size, out);
+ out[integral_size] = decimal_point;
+ return end;
+}
+
+template <typename OutputIt, typename UInt, typename Char,
+ FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<OutputIt>>::value)>
+inline OutputIt write_significand(OutputIt out, UInt significand,
+ int significand_size, int integral_size,
+ Char decimal_point) {
+ // Buffer is large enough to hold digits (digits10 + 1) and a decimal point.
+ Char buffer[digits10<UInt>() + 2];
+ auto end = write_significand(buffer, significand, significand_size,
+ integral_size, decimal_point);
+ return detail::copy_str<Char>(buffer, end, out);
+}
+
+template <typename OutputIt, typename Char>
+inline OutputIt write_significand(OutputIt out, const char* significand,
+ int significand_size, int integral_size,
+ Char decimal_point) {
+ out = detail::copy_str<Char>(significand, significand + integral_size, out);
+ if (!decimal_point) return out;
+ *out++ = decimal_point;
+ return detail::copy_str<Char>(significand + integral_size,
+ significand + significand_size, out);
+}
+
+template <typename OutputIt, typename DecimalFP, typename Char>
+OutputIt write_float(OutputIt out, const DecimalFP& fp,
+ const basic_format_specs<Char>& specs, float_specs fspecs,
+ Char decimal_point) {
+ auto significand = fp.significand;
+ int significand_size = get_significand_size(fp);
+ static const Char zero = static_cast<Char>('0');
+ auto sign = fspecs.sign;
+ size_t size = to_unsigned(significand_size) + (sign ? 1 : 0);
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+
+ int output_exp = fp.exponent + significand_size - 1;
+ auto use_exp_format = [=]() {
+ if (fspecs.format == float_format::exp) return true;
+ if (fspecs.format != float_format::general) return false;
+ // Use the fixed notation if the exponent is in [exp_lower, exp_upper),
+ // e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation.
+ const int exp_lower = -4, exp_upper = 16;
+ return output_exp < exp_lower ||
+ output_exp >= (fspecs.precision > 0 ? fspecs.precision : exp_upper);
+ };
+ if (use_exp_format()) {
+ int num_zeros = 0;
+ if (fspecs.showpoint) {
+ num_zeros = (std::max)(fspecs.precision - significand_size, 0);
+ size += to_unsigned(num_zeros);
+ } else if (significand_size == 1) {
+ decimal_point = Char();
+ }
+ auto abs_output_exp = output_exp >= 0 ? output_exp : -output_exp;
+ int exp_digits = 2;
+ if (abs_output_exp >= 100) exp_digits = abs_output_exp >= 1000 ? 4 : 3;
+
+ size += to_unsigned((decimal_point ? 1 : 0) + 2 + exp_digits);
+ char exp_char = fspecs.upper ? 'E' : 'e';
+ auto write = [=](iterator it) {
+ if (sign) *it++ = static_cast<Char>(data::signs[sign]);
+ // Insert a decimal point after the first digit and add an exponent.
+ it = write_significand(it, significand, significand_size, 1,
+ decimal_point);
+ if (num_zeros > 0) it = std::fill_n(it, num_zeros, zero);
+ *it++ = static_cast<Char>(exp_char);
+ return write_exponent<Char>(output_exp, it);
+ };
+ return specs.width > 0 ? write_padded<align::right>(out, specs, size, write)
+ : base_iterator(out, write(reserve(out, size)));
+ }
+
+ int exp = fp.exponent + significand_size;
+ if (fp.exponent >= 0) {
+ // 1234e5 -> 123400000[.0+]
+ size += to_unsigned(fp.exponent);
+ int num_zeros = fspecs.precision - exp;
+#ifdef FMT_FUZZ
+ if (num_zeros > 5000)
+ throw std::runtime_error("fuzz mode - avoiding excessive cpu use");
#endif
+ if (fspecs.showpoint) {
+ if (num_zeros <= 0 && fspecs.format != float_format::fixed) num_zeros = 1;
+ if (num_zeros > 0) size += to_unsigned(num_zeros);
+ }
+ return write_padded<align::right>(out, specs, size, [&](iterator it) {
+ if (sign) *it++ = static_cast<Char>(data::signs[sign]);
+ it = write_significand<Char>(it, significand, significand_size);
+ it = std::fill_n(it, fp.exponent, zero);
+ if (!fspecs.showpoint) return it;
+ *it++ = decimal_point;
+ return num_zeros > 0 ? std::fill_n(it, num_zeros, zero) : it;
+ });
+ } else if (exp > 0) {
+ // 1234e-2 -> 12.34[0+]
+ int num_zeros = fspecs.showpoint ? fspecs.precision - significand_size : 0;
+ size += 1 + to_unsigned(num_zeros > 0 ? num_zeros : 0);
+ return write_padded<align::right>(out, specs, size, [&](iterator it) {
+ if (sign) *it++ = static_cast<Char>(data::signs[sign]);
+ it = write_significand(it, significand, significand_size, exp,
+ decimal_point);
+ return num_zeros > 0 ? std::fill_n(it, num_zeros, zero) : it;
+ });
+ }
+ // 1234e-6 -> 0.001234
+ int num_zeros = -exp;
+ if (significand_size == 0 && fspecs.precision >= 0 &&
+ fspecs.precision < num_zeros) {
+ num_zeros = fspecs.precision;
+ }
+ size += 2 + to_unsigned(num_zeros);
+ return write_padded<align::right>(out, specs, size, [&](iterator it) {
+ if (sign) *it++ = static_cast<Char>(data::signs[sign]);
+ *it++ = zero;
+ if (num_zeros == 0 && significand_size == 0 && !fspecs.showpoint) return it;
+ *it++ = decimal_point;
+ it = std::fill_n(it, num_zeros, zero);
+ return write_significand<Char>(it, significand, significand_size);
+ });
+}
- template <typename T, typename Spec>
- void write_int(T value, const Spec& spec) {
- handle_int_type_spec(spec.type, int_writer<T, Spec>(*this, value, spec));
+template <typename Char, typename OutputIt, typename T,
+ FMT_ENABLE_IF(std::is_floating_point<T>::value)>
+OutputIt write(OutputIt out, T value, basic_format_specs<Char> specs,
+ locale_ref loc = {}) {
+ if (const_check(!is_supported_floating_point(value))) return out;
+ float_specs fspecs = parse_float_type_spec(specs);
+ fspecs.sign = specs.sign;
+ if (std::signbit(value)) { // value < 0 is false for NaN so use signbit.
+ fspecs.sign = sign::minus;
+ value = -value;
+ } else if (fspecs.sign == sign::minus) {
+ fspecs.sign = sign::none;
}
- template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
- void write(T value, format_specs specs = {}) {
- float_specs fspecs = parse_float_type_spec(specs);
- fspecs.sign = specs.sign;
- if (std::signbit(value)) { // value < 0 is false for NaN so use signbit.
- fspecs.sign = sign::minus;
- value = -value;
- } else if (fspecs.sign == sign::minus) {
- fspecs.sign = sign::none;
- }
+ if (!std::isfinite(value))
+ return write_nonfinite(out, std::isinf(value), specs, fspecs);
- if (!std::isfinite(value)) {
- auto str = std::isinf(value) ? (fspecs.upper ? "INF" : "inf")
- : (fspecs.upper ? "NAN" : "nan");
- return write_padded(specs, nonfinite_writer<char_type>{fspecs.sign, str});
- }
+ if (specs.align == align::numeric && fspecs.sign) {
+ auto it = reserve(out, 1);
+ *it++ = static_cast<Char>(data::signs[fspecs.sign]);
+ out = base_iterator(out, it);
+ fspecs.sign = sign::none;
+ if (specs.width != 0) --specs.width;
+ }
- if (specs.align == align::none) {
- specs.align = align::right;
- } else if (specs.align == align::numeric) {
- if (fspecs.sign) {
- auto&& it = reserve(1);
- *it++ = static_cast<char_type>(data::signs[fspecs.sign]);
- fspecs.sign = sign::none;
- if (specs.width != 0) --specs.width;
- }
- specs.align = align::right;
- }
+ memory_buffer buffer;
+ if (fspecs.format == float_format::hex) {
+ if (fspecs.sign) buffer.push_back(data::signs[fspecs.sign]);
+ snprintf_float(promote_float(value), specs.precision, fspecs, buffer);
+ return write_bytes(out, {buffer.data(), buffer.size()}, specs);
+ }
+ int precision = specs.precision >= 0 || !specs.type ? specs.precision : 6;
+ if (fspecs.format == float_format::exp) {
+ if (precision == max_value<int>())
+ FMT_THROW(format_error("number is too big"));
+ else
+ ++precision;
+ }
+ if (const_check(std::is_same<T, float>())) fspecs.binary32 = true;
+ fspecs.use_grisu = is_fast_float<T>();
+ int exp = format_float(promote_float(value), precision, fspecs, buffer);
+ fspecs.precision = precision;
+ Char point =
+ fspecs.locale ? decimal_point<Char>(loc) : static_cast<Char>('.');
+ auto fp = big_decimal_fp{buffer.data(), static_cast<int>(buffer.size()), exp};
+ return write_float(out, fp, specs, fspecs, point);
+}
- memory_buffer buffer;
- if (fspecs.format == float_format::hex) {
- if (fspecs.sign) buffer.push_back(data::signs[fspecs.sign]);
- snprintf_float(promote_float(value), specs.precision, fspecs, buffer);
- write_padded(specs, str_writer<char>{buffer.data(), buffer.size()});
- return;
- }
- int precision = specs.precision >= 0 || !specs.type ? specs.precision : 6;
- if (fspecs.format == float_format::exp) ++precision;
- if (const_check(std::is_same<T, float>())) fspecs.binary32 = true;
- fspecs.use_grisu = use_grisu<T>();
- if (const_check(FMT_DEPRECATED_PERCENT) && fspecs.percent) value *= 100;
- int exp = format_float(promote_float(value), precision, fspecs, buffer);
- if (const_check(FMT_DEPRECATED_PERCENT) && fspecs.percent) {
- buffer.push_back('%');
- --exp; // Adjust decimal place position.
- }
- fspecs.precision = precision;
- char_type point = fspecs.locale ? decimal_point<char_type>(locale_)
- : static_cast<char_type>('.');
- write_padded(specs, float_writer<char_type>(buffer.data(),
- static_cast<int>(buffer.size()),
- exp, fspecs, point));
+template <typename Char, typename OutputIt, typename T,
+ FMT_ENABLE_IF(is_fast_float<T>::value)>
+OutputIt write(OutputIt out, T value) {
+ if (const_check(!is_supported_floating_point(value))) return out;
+
+ using floaty = conditional_t<std::is_same<T, long double>::value, double, T>;
+ using uint_type = typename dragonbox::float_info<floaty>::carrier_uint;
+ auto bits = bit_cast<uint_type>(value);
+
+ auto fspecs = float_specs();
+ auto sign_bit = bits & (uint_type(1) << (num_bits<uint_type>() - 1));
+ if (sign_bit != 0) {
+ fspecs.sign = sign::minus;
+ value = -value;
+ }
+
+ static const auto specs = basic_format_specs<Char>();
+ uint_type mask = exponent_mask<floaty>();
+ if ((bits & mask) == mask)
+ return write_nonfinite(out, std::isinf(value), specs, fspecs);
+
+ auto dec = dragonbox::to_decimal(static_cast<floaty>(value));
+ return write_float(out, dec, specs, fspecs, static_cast<Char>('.'));
+}
+
+template <typename Char, typename OutputIt, typename T,
+ FMT_ENABLE_IF(std::is_floating_point<T>::value &&
+ !is_fast_float<T>::value)>
+inline OutputIt write(OutputIt out, T value) {
+ return write(out, value, basic_format_specs<Char>());
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write_char(OutputIt out, Char value,
+ const basic_format_specs<Char>& specs) {
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ return write_padded(out, specs, 1, [=](iterator it) {
+ *it++ = value;
+ return it;
+ });
+}
+
+template <typename Char, typename OutputIt, typename UIntPtr>
+OutputIt write_ptr(OutputIt out, UIntPtr value,
+ const basic_format_specs<Char>* specs) {
+ int num_digits = count_digits<4>(value);
+ auto size = to_unsigned(num_digits) + size_t(2);
+ using iterator = remove_reference_t<decltype(reserve(out, 0))>;
+ auto write = [=](iterator it) {
+ *it++ = static_cast<Char>('0');
+ *it++ = static_cast<Char>('x');
+ return format_uint<4, Char>(it, value, num_digits);
+ };
+ return specs ? write_padded<align::right>(out, *specs, size, write)
+ : base_iterator(out, write(reserve(out, size)));
+}
+
+template <typename T> struct is_integral : std::is_integral<T> {};
+template <> struct is_integral<int128_t> : std::true_type {};
+template <> struct is_integral<uint128_t> : std::true_type {};
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, monostate) {
+ FMT_ASSERT(false, "");
+ return out;
+}
+
+template <typename Char, typename OutputIt,
+ FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+OutputIt write(OutputIt out, string_view value) {
+ auto it = reserve(out, value.size());
+ it = copy_str<Char>(value.begin(), value.end(), it);
+ return base_iterator(out, it);
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, basic_string_view<Char> value) {
+ auto it = reserve(out, value.size());
+ it = std::copy(value.begin(), value.end(), it);
+ return base_iterator(out, it);
+}
+
+template <typename Char>
+buffer_appender<Char> write(buffer_appender<Char> out,
+ basic_string_view<Char> value) {
+ get_container(out).append(value.begin(), value.end());
+ return out;
+}
+
+template <typename Char, typename OutputIt, typename T,
+ FMT_ENABLE_IF(is_integral<T>::value &&
+ !std::is_same<T, bool>::value &&
+ !std::is_same<T, Char>::value)>
+OutputIt write(OutputIt out, T value) {
+ auto abs_value = static_cast<uint32_or_64_or_128_t<T>>(value);
+ bool negative = is_negative(value);
+ // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer.
+ if (negative) abs_value = ~abs_value + 1;
+ int num_digits = count_digits(abs_value);
+ auto size = (negative ? 1 : 0) + static_cast<size_t>(num_digits);
+ auto it = reserve(out, size);
+ if (auto ptr = to_pointer<Char>(it, size)) {
+ if (negative) *ptr++ = static_cast<Char>('-');
+ format_decimal<Char>(ptr, abs_value, num_digits);
+ return out;
+ }
+ if (negative) *it++ = static_cast<Char>('-');
+ it = format_decimal<Char>(it, abs_value, num_digits).end;
+ return base_iterator(out, it);
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, bool value) {
+ return write<Char>(out, string_view(value ? "true" : "false"));
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, Char value) {
+ auto it = reserve(out, 1);
+ *it++ = value;
+ return base_iterator(out, it);
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, const Char* value) {
+ if (!value) {
+ FMT_THROW(format_error("string pointer is null"));
+ } else {
+ auto length = std::char_traits<Char>::length(value);
+ out = write(out, basic_string_view<Char>(value, length));
+ }
+ return out;
+}
+
+template <typename Char, typename OutputIt>
+OutputIt write(OutputIt out, const void* value) {
+ return write_ptr<Char>(out, to_uintptr(value), nullptr);
+}
+
+template <typename Char, typename OutputIt, typename T>
+auto write(OutputIt out, const T& value) -> typename std::enable_if<
+ mapped_type_constant<T, basic_format_context<OutputIt, Char>>::value ==
+ type::custom_type,
+ OutputIt>::type {
+ using context_type = basic_format_context<OutputIt, Char>;
+ using formatter_type =
+ conditional_t<has_formatter<T, context_type>::value,
+ typename context_type::template formatter_type<T>,
+ fallback_formatter<T, Char>>;
+ context_type ctx(out, {}, {});
+ return formatter_type().format(value, ctx);
+}
+
+// An argument visitor that formats the argument and writes it via the output
+// iterator. It's a class and not a generic lambda for compatibility with C++11.
+template <typename OutputIt, typename Char> struct default_arg_formatter {
+ using context = basic_format_context<OutputIt, Char>;
+
+ OutputIt out;
+ basic_format_args<context> args;
+ locale_ref loc;
+
+ template <typename T> OutputIt operator()(T value) {
+ return write<Char>(out, value);
+ }
+
+ OutputIt operator()(typename basic_format_arg<context>::handle handle) {
+ basic_format_parse_context<Char> parse_ctx({});
+ basic_format_context<OutputIt, Char> format_ctx(out, args, loc);
+ handle.format(parse_ctx, format_ctx);
+ return format_ctx.out();
+ }
+};
+
+template <typename OutputIt, typename Char,
+ typename ErrorHandler = error_handler>
+class arg_formatter_base {
+ public:
+ using iterator = OutputIt;
+ using char_type = Char;
+ using format_specs = basic_format_specs<Char>;
+
+ private:
+ iterator out_;
+ locale_ref locale_;
+ format_specs* specs_;
+
+ // Attempts to reserve space for n extra characters in the output range.
+ // Returns a pointer to the reserved range or a reference to out_.
+ auto reserve(size_t n) -> decltype(detail::reserve(out_, n)) {
+ return detail::reserve(out_, n);
+ }
+
+ using reserve_iterator = remove_reference_t<decltype(
+ detail::reserve(std::declval<iterator&>(), 0))>;
+
+ template <typename T> void write_int(T value, const format_specs& spec) {
+ using uint_type = uint32_or_64_or_128_t<T>;
+ int_writer<iterator, Char, uint_type> w(out_, locale_, value, spec);
+ handle_int_type_spec(spec.type, w);
+ out_ = w.out;
}
void write(char value) {
@@ -1728,191 +2153,193 @@ template <typename Range> class basic_writer {
*it++ = value;
}
- template <typename Char, FMT_ENABLE_IF(std::is_same<Char, char_type>::value)>
- void write(Char value) {
- auto&& it = reserve(1);
- *it++ = value;
+ template <typename Ch, FMT_ENABLE_IF(std::is_same<Ch, Char>::value)>
+ void write(Ch value) {
+ out_ = detail::write<Char>(out_, value);
}
void write(string_view value) {
auto&& it = reserve(value.size());
- it = copy_str<char_type>(value.begin(), value.end(), it);
+ it = copy_str<Char>(value.begin(), value.end(), it);
}
void write(wstring_view value) {
- static_assert(std::is_same<char_type, wchar_t>::value, "");
+ static_assert(std::is_same<Char, wchar_t>::value, "");
auto&& it = reserve(value.size());
it = std::copy(value.begin(), value.end(), it);
}
- template <typename Char>
- void write(const Char* s, std::size_t size, const format_specs& specs) {
- write_padded(specs, str_writer<Char>{s, size});
+ template <typename Ch>
+ void write(const Ch* s, size_t size, const format_specs& specs) {
+ auto width = specs.width != 0
+ ? count_code_points(basic_string_view<Ch>(s, size))
+ : 0;
+ out_ = write_padded(out_, specs, size, width, [=](reserve_iterator it) {
+ return copy_str<Char>(s, s + size, it);
+ });
}
- template <typename Char>
- void write(basic_string_view<Char> s, const format_specs& specs = {}) {
- const Char* data = s.data();
- std::size_t size = s.size();
- if (specs.precision >= 0 && to_unsigned(specs.precision) < size)
- size = code_point_index(s, to_unsigned(specs.precision));
- write(data, size, specs);
- }
-
- template <typename UIntPtr>
- void write_pointer(UIntPtr value, const format_specs* specs) {
- int num_digits = count_digits<4>(value);
- auto pw = pointer_writer<UIntPtr>{value, num_digits};
- if (!specs) return pw(reserve(to_unsigned(num_digits) + 2));
- format_specs specs_copy = *specs;
- if (specs_copy.align == align::none) specs_copy.align = align::right;
- write_padded(specs_copy, pw);
- }
-};
-
-using writer = basic_writer<buffer_range<char>>;
-
-template <typename T> struct is_integral : std::is_integral<T> {};
-template <> struct is_integral<int128_t> : std::true_type {};
-template <> struct is_integral<uint128_t> : std::true_type {};
-
-template <typename Range, typename ErrorHandler = internal::error_handler>
-class arg_formatter_base {
- public:
- using char_type = typename Range::value_type;
- using iterator = typename Range::iterator;
- using format_specs = basic_format_specs<char_type>;
-
- private:
- using writer_type = basic_writer<Range>;
- writer_type writer_;
- format_specs* specs_;
-
- struct char_writer {
- char_type value;
-
- size_t size() const { return 1; }
- size_t width() const { return 1; }
-
- template <typename It> void operator()(It&& it) const { *it++ = value; }
- };
-
- void write_char(char_type value) {
- if (specs_)
- writer_.write_padded(*specs_, char_writer{value});
- else
- writer_.write(value);
+ template <typename Ch>
+ void write(basic_string_view<Ch> s, const format_specs& specs = {}) {
+ out_ = detail::write(out_, s, specs);
}
void write_pointer(const void* p) {
- writer_.write_pointer(internal::to_uintptr(p), specs_);
- }
-
- protected:
- writer_type& writer() { return writer_; }
- FMT_DEPRECATED format_specs* spec() { return specs_; }
- format_specs* specs() { return specs_; }
- iterator out() { return writer_.out(); }
-
- void write(bool value) {
- string_view sv(value ? "true" : "false");
- specs_ ? writer_.write(sv, *specs_) : writer_.write(sv);
- }
-
- void write(const char_type* value) {
- if (!value) {
- FMT_THROW(format_error("string pointer is null"));
- } else {
- auto length = std::char_traits<char_type>::length(value);
- basic_string_view<char_type> sv(value, length);
- specs_ ? writer_.write(sv, *specs_) : writer_.write(sv);
- }
- }
-
- public:
- arg_formatter_base(Range r, format_specs* s, locale_ref loc)
- : writer_(r, loc), specs_(s) {}
-
- iterator operator()(monostate) {
- FMT_ASSERT(false, "invalid argument type");
- return out();
- }
-
- template <typename T, FMT_ENABLE_IF(is_integral<T>::value)>
- iterator operator()(T value) {
- if (specs_)
- writer_.write_int(value, *specs_);
- else
- writer_.write(value);
- return out();
- }
-
- iterator operator()(char_type value) {
- internal::handle_char_specs(
- specs_, char_spec_handler(*this, static_cast<char_type>(value)));
- return out();
- }
-
- iterator operator()(bool value) {
- if (specs_ && specs_->type) return (*this)(value ? 1 : 0);
- write(value != 0);
- return out();
- }
-
- template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
- iterator operator()(T value) {
- writer_.write(value, specs_ ? *specs_ : format_specs());
- return out();
+ out_ = write_ptr<char_type>(out_, to_uintptr(p), specs_);
}
struct char_spec_handler : ErrorHandler {
arg_formatter_base& formatter;
- char_type value;
+ Char value;
- char_spec_handler(arg_formatter_base& f, char_type val)
+ char_spec_handler(arg_formatter_base& f, Char val)
: formatter(f), value(val) {}
void on_int() {
- if (formatter.specs_)
- formatter.writer_.write_int(value, *formatter.specs_);
- else
- formatter.writer_.write(value);
+ // char is only formatted as int if there are specs.
+ formatter.write_int(static_cast<int>(value), *formatter.specs_);
+ }
+ void on_char() {
+ if (formatter.specs_)
+ formatter.out_ = write_char(formatter.out_, value, *formatter.specs_);
+ else
+ formatter.write(value);
}
- void on_char() { formatter.write_char(value); }
};
- struct cstring_spec_handler : internal::error_handler {
+ struct cstring_spec_handler : error_handler {
arg_formatter_base& formatter;
- const char_type* value;
+ const Char* value;
- cstring_spec_handler(arg_formatter_base& f, const char_type* val)
+ cstring_spec_handler(arg_formatter_base& f, const Char* val)
: formatter(f), value(val) {}
void on_string() { formatter.write(value); }
void on_pointer() { formatter.write_pointer(value); }
};
- iterator operator()(const char_type* value) {
- if (!specs_) return write(value), out();
- internal::handle_cstring_type_spec(specs_->type,
- cstring_spec_handler(*this, value));
- return out();
+ protected:
+ iterator out() { return out_; }
+ format_specs* specs() { return specs_; }
+
+ void write(bool value) {
+ if (specs_)
+ write(string_view(value ? "true" : "false"), *specs_);
+ else
+ out_ = detail::write<Char>(out_, value);
}
- iterator operator()(basic_string_view<char_type> value) {
- if (specs_) {
- internal::check_string_type_spec(specs_->type, internal::error_handler());
- writer_.write(value, *specs_);
+ void write(const Char* value) {
+ if (!value) {
+ FMT_THROW(format_error("string pointer is null"));
} else {
- writer_.write(value);
+ auto length = std::char_traits<char_type>::length(value);
+ basic_string_view<char_type> sv(value, length);
+ specs_ ? write(sv, *specs_) : write(sv);
}
- return out();
+ }
+
+ public:
+ arg_formatter_base(OutputIt out, format_specs* s, locale_ref loc)
+ : out_(out), locale_(loc), specs_(s) {}
+
+ iterator operator()(monostate) {
+ FMT_ASSERT(false, "invalid argument type");
+ return out_;
+ }
+
+ template <typename T, FMT_ENABLE_IF(is_integral<T>::value)>
+ FMT_INLINE iterator operator()(T value) {
+ if (specs_)
+ write_int(value, *specs_);
+ else
+ out_ = detail::write<Char>(out_, value);
+ return out_;
+ }
+
+ iterator operator()(Char value) {
+ handle_char_specs(specs_,
+ char_spec_handler(*this, static_cast<Char>(value)));
+ return out_;
+ }
+
+ iterator operator()(bool value) {
+ if (specs_ && specs_->type) return (*this)(value ? 1 : 0);
+ write(value != 0);
+ return out_;
+ }
+
+ template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
+ iterator operator()(T value) {
+ auto specs = specs_ ? *specs_ : format_specs();
+ if (const_check(is_supported_floating_point(value)))
+ out_ = detail::write(out_, value, specs, locale_);
+ else
+ FMT_ASSERT(false, "unsupported float argument type");
+ return out_;
+ }
+
+ iterator operator()(const Char* value) {
+ if (!specs_) return write(value), out_;
+ handle_cstring_type_spec(specs_->type, cstring_spec_handler(*this, value));
+ return out_;
+ }
+
+ iterator operator()(basic_string_view<Char> value) {
+ if (specs_) {
+ check_string_type_spec(specs_->type, error_handler());
+ write(value, *specs_);
+ } else {
+ write(value);
+ }
+ return out_;
}
iterator operator()(const void* value) {
- if (specs_)
- check_pointer_type_spec(specs_->type, internal::error_handler());
+ if (specs_) check_pointer_type_spec(specs_->type, error_handler());
write_pointer(value);
- return out();
+ return out_;
+ }
+};
+
+/** The default argument formatter. */
+template <typename OutputIt, typename Char>
+class arg_formatter : public arg_formatter_base<OutputIt, Char> {
+ private:
+ using char_type = Char;
+ using base = arg_formatter_base<OutputIt, Char>;
+ using context_type = basic_format_context<OutputIt, Char>;
+
+ context_type& ctx_;
+ basic_format_parse_context<char_type>* parse_ctx_;
+ const Char* ptr_;
+
+ public:
+ using iterator = typename base::iterator;
+ using format_specs = typename base::format_specs;
+
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *ctx* is a reference to the formatting context,
+ *specs* contains format specifier information for standard argument types.
+ \endrst
+ */
+ explicit arg_formatter(
+ context_type& ctx,
+ basic_format_parse_context<char_type>* parse_ctx = nullptr,
+ format_specs* specs = nullptr, const Char* ptr = nullptr)
+ : base(ctx.out(), specs, ctx.locale()),
+ ctx_(ctx),
+ parse_ctx_(parse_ctx),
+ ptr_(ptr) {}
+
+ using base::operator();
+
+ /** Formats an argument of a user-defined type. */
+ iterator operator()(typename basic_format_arg<context_type>::handle handle) {
+ if (ptr_) advance_to(*parse_ctx_, ptr_);
+ handle.format(*parse_ctx_, ctx_);
+ return ctx_.out();
}
};
@@ -1926,10 +2353,6 @@ template <typename Char, typename ErrorHandler>
FMT_CONSTEXPR int parse_nonnegative_int(const Char*& begin, const Char* end,
ErrorHandler&& eh) {
FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', "");
- if (*begin == '0') {
- ++begin;
- return 0;
- }
unsigned value = 0;
// Convert to unsigned to prevent a warning.
constexpr unsigned max_int = max_value<int>();
@@ -1959,12 +2382,11 @@ template <typename Context> class custom_formatter {
Context& ctx)
: parse_ctx_(parse_ctx), ctx_(ctx) {}
- bool operator()(typename basic_format_arg<Context>::handle h) const {
+ void operator()(typename basic_format_arg<Context>::handle h) const {
h.format(parse_ctx_, ctx_);
- return true;
}
- template <typename T> bool operator()(T) const { return false; }
+ template <typename T> void operator()(T) const {}
};
template <typename T>
@@ -2023,7 +2445,9 @@ template <typename Char> class specs_setter {
: specs_(other.specs_) {}
FMT_CONSTEXPR void on_align(align_t align) { specs_.align = align; }
- FMT_CONSTEXPR void on_fill(Char fill) { specs_.fill[0] = fill; }
+ FMT_CONSTEXPR void on_fill(basic_string_view<Char> fill) {
+ specs_.fill = fill;
+ }
FMT_CONSTEXPR void on_plus() { specs_.sign = sign::plus; }
FMT_CONSTEXPR void on_minus() { specs_.sign = sign::minus; }
FMT_CONSTEXPR void on_space() { specs_.sign = sign::space; }
@@ -2050,7 +2474,7 @@ template <typename Char> class specs_setter {
template <typename ErrorHandler> class numeric_specs_checker {
public:
- FMT_CONSTEXPR numeric_specs_checker(ErrorHandler& eh, internal::type arg_type)
+ FMT_CONSTEXPR numeric_specs_checker(ErrorHandler& eh, detail::type arg_type)
: error_handler_(eh), arg_type_(arg_type) {}
FMT_CONSTEXPR void require_numeric_argument() {
@@ -2060,31 +2484,37 @@ template <typename ErrorHandler> class numeric_specs_checker {
FMT_CONSTEXPR void check_sign() {
require_numeric_argument();
- if (is_integral_type(arg_type_) && arg_type_ != int_type &&
- arg_type_ != long_long_type && arg_type_ != internal::char_type) {
+ if (is_integral_type(arg_type_) && arg_type_ != type::int_type &&
+ arg_type_ != type::long_long_type && arg_type_ != type::char_type) {
error_handler_.on_error("format specifier requires signed argument");
}
}
FMT_CONSTEXPR void check_precision() {
- if (is_integral_type(arg_type_) || arg_type_ == internal::pointer_type)
+ if (is_integral_type(arg_type_) || arg_type_ == type::pointer_type)
error_handler_.on_error("precision not allowed for this argument type");
}
private:
ErrorHandler& error_handler_;
- internal::type arg_type_;
+ detail::type arg_type_;
};
// A format specifier handler that checks if specifiers are consistent with the
// argument type.
template <typename Handler> class specs_checker : public Handler {
+ private:
+ numeric_specs_checker<Handler> checker_;
+
+ // Suppress an MSVC warning about using this in initializer list.
+ FMT_CONSTEXPR Handler& error_handler() { return *this; }
+
public:
- FMT_CONSTEXPR specs_checker(const Handler& handler, internal::type arg_type)
- : Handler(handler), checker_(*this, arg_type) {}
+ FMT_CONSTEXPR specs_checker(const Handler& handler, detail::type arg_type)
+ : Handler(handler), checker_(error_handler(), arg_type) {}
FMT_CONSTEXPR specs_checker(const specs_checker& other)
- : Handler(other), checker_(*this, other.arg_type_) {}
+ : Handler(other), checker_(error_handler(), other.arg_type_) {}
FMT_CONSTEXPR void on_align(align_t align) {
if (align == align::numeric) checker_.require_numeric_argument();
@@ -2117,9 +2547,6 @@ template <typename Handler> class specs_checker : public Handler {
}
FMT_CONSTEXPR void end_precision() { checker_.check_precision(); }
-
- private:
- numeric_specs_checker<Handler> checker_;
};
template <template <typename> class Handler, typename FormatArg,
@@ -2132,10 +2559,10 @@ FMT_CONSTEXPR int get_dynamic_spec(FormatArg arg, ErrorHandler eh) {
struct auto_id {};
-template <typename Context>
-FMT_CONSTEXPR typename Context::format_arg get_arg(Context& ctx, int id) {
+template <typename Context, typename ID>
+FMT_CONSTEXPR typename Context::format_arg get_arg(Context& ctx, ID id) {
auto arg = ctx.arg(id);
- if (!arg) ctx.on_error("argument index out of range");
+ if (!arg) ctx.on_error("argument not found");
return arg;
}
@@ -2168,17 +2595,17 @@ class specs_handler : public specs_setter<typename Context::char_type> {
using format_arg = typename Context::format_arg;
FMT_CONSTEXPR format_arg get_arg(auto_id) {
- return internal::get_arg(context_, parse_context_.next_arg_id());
+ return detail::get_arg(context_, parse_context_.next_arg_id());
}
FMT_CONSTEXPR format_arg get_arg(int arg_id) {
parse_context_.check_arg_id(arg_id);
- return internal::get_arg(context_, arg_id);
+ return detail::get_arg(context_, arg_id);
}
FMT_CONSTEXPR format_arg get_arg(basic_string_view<char_type> arg_id) {
parse_context_.check_arg_id(arg_id);
- return context_.arg(arg_id);
+ return detail::get_arg(context_, arg_id);
}
ParseContext& parse_context_;
@@ -2190,6 +2617,7 @@ enum class arg_id_kind { none, index, name };
// An argument reference.
template <typename Char> struct arg_ref {
FMT_CONSTEXPR arg_ref() : kind(arg_id_kind::none), val() {}
+
FMT_CONSTEXPR explicit arg_ref(int index)
: kind(arg_id_kind::index), val(index) {}
FMT_CONSTEXPR explicit arg_ref(basic_string_view<Char> name)
@@ -2282,7 +2710,11 @@ FMT_CONSTEXPR const Char* parse_arg_id(const Char* begin, const Char* end,
return begin;
}
if (c >= '0' && c <= '9') {
- int index = parse_nonnegative_int(begin, end, handler);
+ int index = 0;
+ if (c != '0')
+ index = parse_nonnegative_int(begin, end, handler);
+ else
+ ++begin;
if (begin == end || (*begin != '}' && *begin != ':'))
handler.on_error("invalid format string");
else
@@ -2335,23 +2767,50 @@ template <typename SpecHandler, typename Char> struct precision_adapter {
SpecHandler& handler;
};
+template <typename Char>
+FMT_CONSTEXPR int code_point_length(const Char* begin) {
+ if (const_check(sizeof(Char) != 1)) return 1;
+ constexpr char lengths[] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 2, 2, 3, 3, 4, 0};
+ int len = lengths[static_cast<unsigned char>(*begin) >> 3];
+
+ // Compute the pointer to the next character early so that the next
+ // iteration can start working on the next character. Neither Clang
+ // nor GCC figure out this reordering on their own.
+ return len + !len;
+}
+
+template <typename Char> constexpr bool is_ascii_letter(Char c) {
+ return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
+}
+
+// Converts a character to ASCII. Returns a number > 127 on conversion failure.
+template <typename Char, FMT_ENABLE_IF(std::is_integral<Char>::value)>
+constexpr Char to_ascii(Char value) {
+ return value;
+}
+template <typename Char, FMT_ENABLE_IF(std::is_enum<Char>::value)>
+constexpr typename std::underlying_type<Char>::type to_ascii(Char value) {
+ return value;
+}
+
// Parses fill and alignment.
template <typename Char, typename Handler>
FMT_CONSTEXPR const Char* parse_align(const Char* begin, const Char* end,
Handler&& handler) {
FMT_ASSERT(begin != end, "");
auto align = align::none;
- int i = 0;
- if (begin + 1 != end) ++i;
- do {
- switch (static_cast<char>(begin[i])) {
+ auto p = begin + code_point_length(begin);
+ if (p >= end) p = begin;
+ for (;;) {
+ switch (to_ascii(*p)) {
case '<':
align = align::left;
break;
case '>':
align = align::right;
break;
-#if FMT_NUMERIC_ALIGN
+#if FMT_DEPRECATED_NUMERIC_ALIGN
case '=':
align = align::numeric;
break;
@@ -2361,18 +2820,21 @@ FMT_CONSTEXPR const Char* parse_align(const Char* begin, const Char* end,
break;
}
if (align != align::none) {
- if (i > 0) {
+ if (p != begin) {
auto c = *begin;
if (c == '{')
return handler.on_error("invalid fill character '{'"), begin;
- begin += 2;
- handler.on_fill(c);
+ handler.on_fill(basic_string_view<Char>(begin, to_unsigned(p - begin)));
+ begin = p + 1;
} else
++begin;
handler.on_align(align);
break;
+ } else if (p == begin) {
+ break;
}
- } while (i-- > 0);
+ p = begin;
+ }
return begin;
}
@@ -2420,13 +2882,13 @@ FMT_CONSTEXPR const Char* parse_precision(const Char* begin, const Char* end,
template <typename Char, typename SpecHandler>
FMT_CONSTEXPR const Char* parse_format_specs(const Char* begin, const Char* end,
SpecHandler&& handler) {
- if (begin == end || *begin == '}') return begin;
+ if (begin == end) return begin;
begin = parse_align(begin, end, handler);
if (begin == end) return begin;
// Parse sign.
- switch (static_cast<char>(*begin)) {
+ switch (to_ascii(*begin)) {
case '+':
handler.on_plus();
++begin;
@@ -2479,71 +2941,98 @@ template <>
inline bool find<false, char>(const char* first, const char* last, char value,
const char*& out) {
out = static_cast<const char*>(
- std::memchr(first, value, internal::to_unsigned(last - first)));
+ std::memchr(first, value, detail::to_unsigned(last - first)));
return out != nullptr;
}
template <typename Handler, typename Char> struct id_adapter {
- FMT_CONSTEXPR void operator()() { handler.on_arg_id(); }
- FMT_CONSTEXPR void operator()(int id) { handler.on_arg_id(id); }
+ Handler& handler;
+ int arg_id;
+
+ FMT_CONSTEXPR void operator()() { arg_id = handler.on_arg_id(); }
+ FMT_CONSTEXPR void operator()(int id) { arg_id = handler.on_arg_id(id); }
FMT_CONSTEXPR void operator()(basic_string_view<Char> id) {
- handler.on_arg_id(id);
+ arg_id = handler.on_arg_id(id);
}
FMT_CONSTEXPR void on_error(const char* message) {
handler.on_error(message);
}
- Handler& handler;
};
+template <typename Char, typename Handler>
+FMT_CONSTEXPR const Char* parse_replacement_field(const Char* begin,
+ const Char* end,
+ Handler&& handler) {
+ ++begin;
+ if (begin == end) return handler.on_error("invalid format string"), end;
+ if (*begin == '}') {
+ handler.on_replacement_field(handler.on_arg_id(), begin);
+ } else if (*begin == '{') {
+ handler.on_text(begin, begin + 1);
+ } else {
+ auto adapter = id_adapter<Handler, Char>{handler, 0};
+ begin = parse_arg_id(begin, end, adapter);
+ Char c = begin != end ? *begin : Char();
+ if (c == '}') {
+ handler.on_replacement_field(adapter.arg_id, begin);
+ } else if (c == ':') {
+ begin = handler.on_format_specs(adapter.arg_id, begin + 1, end);
+ if (begin == end || *begin != '}')
+ return handler.on_error("unknown format specifier"), end;
+ } else {
+ return handler.on_error("missing '}' in format string"), end;
+ }
+ }
+ return begin + 1;
+}
+
template <bool IS_CONSTEXPR, typename Char, typename Handler>
-FMT_CONSTEXPR void parse_format_string(basic_string_view<Char> format_str,
- Handler&& handler) {
- struct pfs_writer {
- FMT_CONSTEXPR void operator()(const Char* begin, const Char* end) {
- if (begin == end) return;
+FMT_CONSTEXPR_DECL FMT_INLINE void parse_format_string(
+ basic_string_view<Char> format_str, Handler&& handler) {
+ auto begin = format_str.data();
+ auto end = begin + format_str.size();
+ if (end - begin < 32) {
+ // Use a simple loop instead of memchr for small strings.
+ const Char* p = begin;
+ while (p != end) {
+ auto c = *p++;
+ if (c == '{') {
+ handler.on_text(begin, p - 1);
+ begin = p = parse_replacement_field(p - 1, end, handler);
+ } else if (c == '}') {
+ if (p == end || *p != '}')
+ return handler.on_error("unmatched '}' in format string");
+ handler.on_text(begin, p);
+ begin = ++p;
+ }
+ }
+ handler.on_text(begin, end);
+ return;
+ }
+ struct writer {
+ FMT_CONSTEXPR void operator()(const Char* pbegin, const Char* pend) {
+ if (pbegin == pend) return;
for (;;) {
const Char* p = nullptr;
- if (!find<IS_CONSTEXPR>(begin, end, '}', p))
- return handler_.on_text(begin, end);
+ if (!find<IS_CONSTEXPR>(pbegin, pend, '}', p))
+ return handler_.on_text(pbegin, pend);
++p;
- if (p == end || *p != '}')
+ if (p == pend || *p != '}')
return handler_.on_error("unmatched '}' in format string");
- handler_.on_text(begin, p);
- begin = p + 1;
+ handler_.on_text(pbegin, p);
+ pbegin = p + 1;
}
}
Handler& handler_;
} write{handler};
- auto begin = format_str.data();
- auto end = begin + format_str.size();
while (begin != end) {
// Doing two passes with memchr (one for '{' and another for '}') is up to
// 2.5x faster than the naive one-pass implementation on big format strings.
const Char* p = begin;
- if (*begin != '{' && !find<IS_CONSTEXPR>(begin, end, '{', p))
+ if (*begin != '{' && !find<IS_CONSTEXPR>(begin + 1, end, '{', p))
return write(begin, end);
write(begin, p);
- ++p;
- if (p == end) return handler.on_error("invalid format string");
- if (static_cast<char>(*p) == '}') {
- handler.on_arg_id();
- handler.on_replacement_field(p);
- } else if (*p == '{') {
- handler.on_text(p, p + 1);
- } else {
- p = parse_arg_id(p, end, id_adapter<Handler, Char>{handler});
- Char c = p != end ? *p : Char();
- if (c == '}') {
- handler.on_replacement_field(p);
- } else if (c == ':') {
- p = handler.on_format_specs(p + 1, end);
- if (p == end || *p != '}')
- return handler.on_error("unknown format specifier");
- } else {
- return handler.on_error("missing '}' in format string");
- }
- }
- begin = p + 1;
+ begin = parse_replacement_field(p, end, handler);
}
}
@@ -2553,44 +3042,128 @@ FMT_CONSTEXPR const typename ParseContext::char_type* parse_format_specs(
using char_type = typename ParseContext::char_type;
using context = buffer_context<char_type>;
using mapped_type =
- conditional_t<internal::mapped_type_constant<T, context>::value !=
- internal::custom_type,
+ conditional_t<detail::mapped_type_constant<T, context>::value !=
+ type::custom_type,
decltype(arg_mapper<context>().map(std::declval<T>())), T>;
auto f = conditional_t<has_formatter<mapped_type, context>::value,
formatter<mapped_type, char_type>,
- internal::fallback_formatter<T, char_type>>();
+ detail::fallback_formatter<T, char_type>>();
return f.parse(ctx);
}
+template <typename OutputIt, typename Char, typename Context>
+struct format_handler : detail::error_handler {
+ basic_format_parse_context<Char> parse_context;
+ Context context;
+
+ format_handler(OutputIt out,
+ basic_string_view<Char> str,
+ basic_format_args<Context> format_args, detail::locale_ref loc)
+ : parse_context(str), context(out, format_args, loc) {}
+
+ void on_text(const Char* begin, const Char* end) {
+ auto size = to_unsigned(end - begin);
+ auto out = context.out();
+ auto&& it = reserve(out, size);
+ it = std::copy_n(begin, size, it);
+ context.advance_to(out);
+ }
+
+ int on_arg_id() { return parse_context.next_arg_id(); }
+ int on_arg_id(int id) { return parse_context.check_arg_id(id), id; }
+ int on_arg_id(basic_string_view<Char> id) {
+ int arg_id = context.arg_id(id);
+ if (arg_id < 0) on_error("argument not found");
+ return arg_id;
+ }
+
+ FMT_INLINE void on_replacement_field(int id, const Char*) {
+ auto arg = get_arg(context, id);
+ context.advance_to(visit_format_arg(
+ default_arg_formatter<OutputIt, Char>{
+ context.out(), context.args(), context.locale()},
+ arg));
+ }
+
+ const Char* on_format_specs(int id, const Char* begin, const Char* end) {
+ auto arg = get_arg(context, id);
+ if (arg.type() == type::custom_type) {
+ advance_to(parse_context, begin);
+ visit_format_arg(custom_formatter<Context>(parse_context, context), arg);
+ return parse_context.begin();
+ }
+ auto specs = basic_format_specs<Char>();
+ if (begin + 1 < end && begin[1] == '}' && is_ascii_letter(*begin)) {
+ specs.type = static_cast<char>(*begin++);
+ } else {
+ using parse_context_t = basic_format_parse_context<Char>;
+ specs_checker<specs_handler<parse_context_t, Context>> handler(
+ specs_handler<parse_context_t, Context>(specs, parse_context,
+ context),
+ arg.type());
+ begin = parse_format_specs(begin, end, handler);
+ if (begin == end || *begin != '}')
+ on_error("missing '}' in format string");
+ }
+ context.advance_to(
+ visit_format_arg(arg_formatter<OutputIt, Char>(context, &parse_context, &specs), arg));
+ return begin;
+ }
+};
+
+// A parse context with extra argument id checks. It is only used at compile
+// time because adding checks at runtime would introduce substantial overhead
+// and would be redundant since argument ids are checked when arguments are
+// retrieved anyway.
+template <typename Char, typename ErrorHandler = error_handler>
+class compile_parse_context
+ : public basic_format_parse_context<Char, ErrorHandler> {
+ private:
+ int num_args_;
+ using base = basic_format_parse_context<Char, ErrorHandler>;
+
+ public:
+ explicit FMT_CONSTEXPR compile_parse_context(
+ basic_string_view<Char> format_str, int num_args = max_value<int>(),
+ ErrorHandler eh = {})
+ : base(format_str, eh), num_args_(num_args) {}
+
+ FMT_CONSTEXPR int next_arg_id() {
+ int id = base::next_arg_id();
+ if (id >= num_args_) this->on_error("argument not found");
+ return id;
+ }
+
+ FMT_CONSTEXPR void check_arg_id(int id) {
+ base::check_arg_id(id);
+ if (id >= num_args_) this->on_error("argument not found");
+ }
+ using base::check_arg_id;
+};
+
template <typename Char, typename ErrorHandler, typename... Args>
class format_string_checker {
public:
explicit FMT_CONSTEXPR format_string_checker(
basic_string_view<Char> format_str, ErrorHandler eh)
- : arg_id_(-1),
- context_(format_str, eh),
+ : context_(format_str, num_args, eh),
parse_funcs_{&parse_format_specs<Args, parse_context_type>...} {}
FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
- FMT_CONSTEXPR void on_arg_id() {
- arg_id_ = context_.next_arg_id();
- check_arg_id();
- }
- FMT_CONSTEXPR void on_arg_id(int id) {
- arg_id_ = id;
- context_.check_arg_id(id);
- check_arg_id();
- }
- FMT_CONSTEXPR void on_arg_id(basic_string_view<Char>) {
+ FMT_CONSTEXPR int on_arg_id() { return context_.next_arg_id(); }
+ FMT_CONSTEXPR int on_arg_id(int id) { return context_.check_arg_id(id), id; }
+ FMT_CONSTEXPR int on_arg_id(basic_string_view<Char>) {
on_error("compile-time checks don't support named arguments");
+ return 0;
}
- FMT_CONSTEXPR void on_replacement_field(const Char*) {}
+ FMT_CONSTEXPR void on_replacement_field(int, const Char*) {}
- FMT_CONSTEXPR const Char* on_format_specs(const Char* begin, const Char*) {
+ FMT_CONSTEXPR const Char* on_format_specs(int id, const Char* begin,
+ const Char*) {
advance_to(context_, begin);
- return arg_id_ < num_args ? parse_funcs_[arg_id_](context_) : begin;
+ return id < num_args ? parse_funcs_[id](context_) : begin;
}
FMT_CONSTEXPR void on_error(const char* message) {
@@ -2598,36 +3171,66 @@ class format_string_checker {
}
private:
- using parse_context_type = basic_format_parse_context<Char, ErrorHandler>;
+ using parse_context_type = compile_parse_context<Char, ErrorHandler>;
enum { num_args = sizeof...(Args) };
- FMT_CONSTEXPR void check_arg_id() {
- if (arg_id_ >= num_args) context_.on_error("argument index out of range");
- }
-
// Format specifier parsing function.
using parse_func = const Char* (*)(parse_context_type&);
- int arg_id_;
parse_context_type context_;
parse_func parse_funcs_[num_args > 0 ? num_args : 1];
};
-template <typename Char, typename ErrorHandler, typename... Args>
-FMT_CONSTEXPR bool do_check_format_string(basic_string_view<Char> s,
- ErrorHandler eh = ErrorHandler()) {
- format_string_checker<Char, ErrorHandler, Args...> checker(s, eh);
- parse_format_string<true>(s, checker);
- return true;
+// Converts string literals to basic_string_view.
+template <typename Char, size_t N>
+FMT_CONSTEXPR basic_string_view<Char> compile_string_to_view(
+ const Char (&s)[N]) {
+ // Remove trailing null character if needed. Won't be present if this is used
+ // with raw character array (i.e. not defined as a string).
+ return {s,
+ N - ((std::char_traits<Char>::to_int_type(s[N - 1]) == 0) ? 1 : 0)};
}
+// Converts string_view to basic_string_view.
+template <typename Char>
+FMT_CONSTEXPR basic_string_view<Char> compile_string_to_view(
+ const std_string_view<Char>& s) {
+ return {s.data(), s.size()};
+}
+
+#define FMT_STRING_IMPL(s, base) \
+ [] { \
+ /* Use a macro-like name to avoid shadowing warnings. */ \
+ struct FMT_COMPILE_STRING : base { \
+ using char_type = fmt::remove_cvref_t<decltype(s[0])>; \
+ FMT_MAYBE_UNUSED FMT_CONSTEXPR \
+ operator fmt::basic_string_view<char_type>() const { \
+ return fmt::detail::compile_string_to_view<char_type>(s); \
+ } \
+ }; \
+ return FMT_COMPILE_STRING(); \
+ }()
+
+/**
+ \rst
+ Constructs a compile-time format string from a string literal *s*.
+
+ **Example**::
+
+ // A compile-time error because 'd' is an invalid specifier for strings.
+ std::string s = fmt::format(FMT_STRING("{:d}"), "foo");
+ \endrst
+ */
+#define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::compile_string)
+
template <typename... Args, typename S,
enable_if_t<(is_compile_string<S>::value), int>>
void check_format_string(S format_str) {
+ FMT_CONSTEXPR_DECL auto s = to_string_view(format_str);
+ using checker = format_string_checker<typename S::char_type, error_handler,
+ remove_cvref_t<Args>...>;
FMT_CONSTEXPR_DECL bool invalid_format =
- internal::do_check_format_string<typename S::char_type,
- internal::error_handler, Args...>(
- to_string_view(format_str));
+ (parse_format_string<true>(s, checker(s, {})), true);
(void)invalid_format;
}
@@ -2638,67 +3241,34 @@ void handle_dynamic_spec(int& value, arg_ref<typename Context::char_type> ref,
case arg_id_kind::none:
break;
case arg_id_kind::index:
- value = internal::get_dynamic_spec<Handler>(ctx.arg(ref.val.index),
- ctx.error_handler());
+ value = detail::get_dynamic_spec<Handler>(ctx.arg(ref.val.index),
+ ctx.error_handler());
break;
case arg_id_kind::name:
- value = internal::get_dynamic_spec<Handler>(ctx.arg(ref.val.name),
- ctx.error_handler());
+ value = detail::get_dynamic_spec<Handler>(ctx.arg(ref.val.name),
+ ctx.error_handler());
break;
}
}
-} // namespace internal
-template <typename Range>
-using basic_writer FMT_DEPRECATED_ALIAS = internal::basic_writer<Range>;
-using writer FMT_DEPRECATED_ALIAS = internal::writer;
-using wwriter FMT_DEPRECATED_ALIAS =
- internal::basic_writer<buffer_range<wchar_t>>;
+using format_func = void (*)(detail::buffer<char>&, int, string_view);
-/** The default argument formatter. */
-template <typename Range>
-class arg_formatter : public internal::arg_formatter_base<Range> {
- private:
- using char_type = typename Range::value_type;
- using base = internal::arg_formatter_base<Range>;
- using context_type = basic_format_context<typename base::iterator, char_type>;
+FMT_API void format_error_code(buffer<char>& out, int error_code,
+ string_view message) FMT_NOEXCEPT;
- context_type& ctx_;
- basic_format_parse_context<char_type>* parse_ctx_;
+FMT_API void report_error(format_func func, int error_code,
+ string_view message) FMT_NOEXCEPT;
+} // namespace detail
- public:
- using range = Range;
- using iterator = typename base::iterator;
- using format_specs = typename base::format_specs;
-
- /**
- \rst
- Constructs an argument formatter object.
- *ctx* is a reference to the formatting context,
- *specs* contains format specifier information for standard argument types.
- \endrst
- */
- explicit arg_formatter(
- context_type& ctx,
- basic_format_parse_context<char_type>* parse_ctx = nullptr,
- format_specs* specs = nullptr)
- : base(Range(ctx.out()), specs, ctx.locale()),
- ctx_(ctx),
- parse_ctx_(parse_ctx) {}
-
- using base::operator();
-
- /** Formats an argument of a user-defined type. */
- iterator operator()(typename basic_format_arg<context_type>::handle handle) {
- handle.format(*parse_ctx_, ctx_);
- return ctx_.out();
- }
-};
+template <typename OutputIt, typename Char>
+using arg_formatter FMT_DEPRECATED_ALIAS =
+ detail::arg_formatter<OutputIt, Char>;
/**
An error returned by an operating system or a language runtime,
for example a file opening error.
*/
+FMT_CLASS_API
class FMT_API system_error : public std::runtime_error {
private:
void init(int err_code, string_view format_str, format_args args);
@@ -2757,7 +3327,7 @@ class FMT_API system_error : public std::runtime_error {
may look like "Unknown error -1" and is platform-dependent.
\endrst
*/
-FMT_API void format_system_error(internal::buffer<char>& out, int error_code,
+FMT_API void format_system_error(detail::buffer<char>& out, int error_code,
string_view message) FMT_NOEXCEPT;
// Reports a system error without throwing an exception.
@@ -2765,55 +3335,6 @@ FMT_API void format_system_error(internal::buffer<char>& out, int error_code,
FMT_API void report_system_error(int error_code,
string_view message) FMT_NOEXCEPT;
-#if FMT_USE_WINDOWS_H
-
-/** A Windows error. */
-class windows_error : public system_error {
- private:
- FMT_API void init(int error_code, string_view format_str, format_args args);
-
- public:
- /**
- \rst
- Constructs a :class:`fmt::windows_error` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is the
- system message corresponding to the error code.
- *error_code* is a Windows error code as given by ``GetLastError``.
- If *error_code* is not a valid error code such as -1, the system message
- will look like "error -1".
-
- **Example**::
-
- // This throws a windows_error with the description
- // cannot open file 'madeup': The system cannot find the file specified.
- // or similar (system message may vary).
- const char *filename = "madeup";
- LPOFSTRUCT of = LPOFSTRUCT();
- HFILE file = OpenFile(filename, &of, OF_READ);
- if (file == HFILE_ERROR) {
- throw fmt::windows_error(GetLastError(),
- "cannot open file '{}'", filename);
- }
- \endrst
- */
- template <typename... Args>
- windows_error(int error_code, string_view message, const Args&... args) {
- init(error_code, message, make_format_args(args...));
- }
-};
-
-// Reports a Windows error without throwing an exception.
-// Can be used to report errors from destructors.
-FMT_API void report_windows_error(int error_code,
- string_view message) FMT_NOEXCEPT;
-
-#endif
-
/** Fast integer formatter. */
class format_int {
private:
@@ -2823,47 +3344,32 @@ class format_int {
mutable char buffer_[buffer_size];
char* str_;
- // Formats value in reverse and returns a pointer to the beginning.
- char* format_decimal(unsigned long long value) {
- char* ptr = buffer_ + (buffer_size - 1); // Parens to workaround MSVC bug.
- while (value >= 100) {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- auto index = static_cast<unsigned>((value % 100) * 2);
- value /= 100;
- *--ptr = internal::data::digits[index + 1];
- *--ptr = internal::data::digits[index];
- }
- if (value < 10) {
- *--ptr = static_cast<char>('0' + value);
- return ptr;
- }
- auto index = static_cast<unsigned>(value * 2);
- *--ptr = internal::data::digits[index + 1];
- *--ptr = internal::data::digits[index];
- return ptr;
+ template <typename UInt> char* format_unsigned(UInt value) {
+ auto n = static_cast<detail::uint32_or_64_or_128_t<UInt>>(value);
+ return detail::format_decimal(buffer_, n, buffer_size - 1).begin;
}
- void format_signed(long long value) {
- auto abs_value = static_cast<unsigned long long>(value);
+ template <typename Int> char* format_signed(Int value) {
+ auto abs_value = static_cast<detail::uint32_or_64_or_128_t<Int>>(value);
bool negative = value < 0;
if (negative) abs_value = 0 - abs_value;
- str_ = format_decimal(abs_value);
- if (negative) *--str_ = '-';
+ auto begin = format_unsigned(abs_value);
+ if (negative) *--begin = '-';
+ return begin;
}
public:
- explicit format_int(int value) { format_signed(value); }
- explicit format_int(long value) { format_signed(value); }
- explicit format_int(long long value) { format_signed(value); }
- explicit format_int(unsigned value) : str_(format_decimal(value)) {}
- explicit format_int(unsigned long value) : str_(format_decimal(value)) {}
- explicit format_int(unsigned long long value) : str_(format_decimal(value)) {}
+ explicit format_int(int value) : str_(format_signed(value)) {}
+ explicit format_int(long value) : str_(format_signed(value)) {}
+ explicit format_int(long long value) : str_(format_signed(value)) {}
+ explicit format_int(unsigned value) : str_(format_unsigned(value)) {}
+ explicit format_int(unsigned long value) : str_(format_unsigned(value)) {}
+ explicit format_int(unsigned long long value)
+ : str_(format_unsigned(value)) {}
/** Returns the number of characters written to the output buffer. */
- std::size_t size() const {
- return internal::to_unsigned(buffer_ - str_ + buffer_size - 1);
+ size_t size() const {
+ return detail::to_unsigned(buffer_ - str_ + buffer_size - 1);
}
/**
@@ -2889,59 +3395,71 @@ class format_int {
std::string str() const { return std::string(str_, size()); }
};
-// A formatter specialization for the core types corresponding to internal::type
+// A formatter specialization for the core types corresponding to detail::type
// constants.
template <typename T, typename Char>
struct formatter<T, Char,
- enable_if_t<internal::type_constant<T, Char>::value !=
- internal::custom_type>> {
+ enable_if_t<detail::type_constant<T, Char>::value !=
+ detail::type::custom_type>> {
FMT_CONSTEXPR formatter() = default;
// Parses format specifiers stopping either at the end of the range or at the
// terminating '}'.
template <typename ParseContext>
FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
- using handler_type = internal::dynamic_specs_handler<ParseContext>;
- auto type = internal::type_constant<T, Char>::value;
- internal::specs_checker<handler_type> handler(handler_type(specs_, ctx),
- type);
+ using handler_type = detail::dynamic_specs_handler<ParseContext>;
+ auto type = detail::type_constant<T, Char>::value;
+ detail::specs_checker<handler_type> handler(handler_type(specs_, ctx),
+ type);
auto it = parse_format_specs(ctx.begin(), ctx.end(), handler);
auto eh = ctx.error_handler();
switch (type) {
- case internal::none_type:
- case internal::named_arg_type:
+ case detail::type::none_type:
FMT_ASSERT(false, "invalid argument type");
break;
- case internal::int_type:
- case internal::uint_type:
- case internal::long_long_type:
- case internal::ulong_long_type:
- case internal::int128_type:
- case internal::uint128_type:
- case internal::bool_type:
+ case detail::type::int_type:
+ case detail::type::uint_type:
+ case detail::type::long_long_type:
+ case detail::type::ulong_long_type:
+ case detail::type::int128_type:
+ case detail::type::uint128_type:
+ case detail::type::bool_type:
handle_int_type_spec(specs_.type,
- internal::int_type_checker<decltype(eh)>(eh));
+ detail::int_type_checker<decltype(eh)>(eh));
break;
- case internal::char_type:
+ case detail::type::char_type:
handle_char_specs(
- &specs_, internal::char_specs_checker<decltype(eh)>(specs_.type, eh));
+ &specs_, detail::char_specs_checker<decltype(eh)>(specs_.type, eh));
break;
- case internal::float_type:
- case internal::double_type:
- case internal::long_double_type:
- internal::parse_float_type_spec(specs_, eh);
+ case detail::type::float_type:
+ if (detail::const_check(FMT_USE_FLOAT))
+ detail::parse_float_type_spec(specs_, eh);
+ else
+ FMT_ASSERT(false, "float support disabled");
break;
- case internal::cstring_type:
- internal::handle_cstring_type_spec(
- specs_.type, internal::cstring_type_checker<decltype(eh)>(eh));
+ case detail::type::double_type:
+ if (detail::const_check(FMT_USE_DOUBLE))
+ detail::parse_float_type_spec(specs_, eh);
+ else
+ FMT_ASSERT(false, "double support disabled");
break;
- case internal::string_type:
- internal::check_string_type_spec(specs_.type, eh);
+ case detail::type::long_double_type:
+ if (detail::const_check(FMT_USE_LONG_DOUBLE))
+ detail::parse_float_type_spec(specs_, eh);
+ else
+ FMT_ASSERT(false, "long double support disabled");
break;
- case internal::pointer_type:
- internal::check_pointer_type_spec(specs_.type, eh);
+ case detail::type::cstring_type:
+ detail::handle_cstring_type_spec(
+ specs_.type, detail::cstring_type_checker<decltype(eh)>(eh));
break;
- case internal::custom_type:
+ case detail::type::string_type:
+ detail::check_string_type_spec(specs_.type, eh);
+ break;
+ case detail::type::pointer_type:
+ detail::check_pointer_type_spec(specs_.type, eh);
+ break;
+ case detail::type::custom_type:
// Custom format specifiers should be checked in parse functions of
// formatter specializations.
break;
@@ -2951,26 +3469,25 @@ struct formatter<T, Char,
template <typename FormatContext>
auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) {
- internal::handle_dynamic_spec<internal::width_checker>(
- specs_.width, specs_.width_ref, ctx);
- internal::handle_dynamic_spec<internal::precision_checker>(
+ detail::handle_dynamic_spec<detail::width_checker>(specs_.width,
+ specs_.width_ref, ctx);
+ detail::handle_dynamic_spec<detail::precision_checker>(
specs_.precision, specs_.precision_ref, ctx);
- using range_type =
- internal::output_range<typename FormatContext::iterator,
- typename FormatContext::char_type>;
- return visit_format_arg(arg_formatter<range_type>(ctx, nullptr, &specs_),
- internal::make_arg<FormatContext>(val));
+ using af = detail::arg_formatter<typename FormatContext::iterator,
+ typename FormatContext::char_type>;
+ return visit_format_arg(af(ctx, nullptr, &specs_),
+ detail::make_arg<FormatContext>(val));
}
private:
- internal::dynamic_format_specs<Char> specs_;
+ detail::dynamic_format_specs<Char> specs_;
};
#define FMT_FORMAT_AS(Type, Base) \
template <typename Char> \
struct formatter<Type, Char> : formatter<Base, Char> { \
template <typename FormatContext> \
- auto format(const Type& val, FormatContext& ctx) -> decltype(ctx.out()) { \
+ auto format(Type const& val, FormatContext& ctx) -> decltype(ctx.out()) { \
return formatter<Base, Char>::format(val, ctx); \
} \
}
@@ -2984,7 +3501,7 @@ FMT_FORMAT_AS(unsigned long, unsigned long long);
FMT_FORMAT_AS(Char*, const Char*);
FMT_FORMAT_AS(std::basic_string<Char>, basic_string_view<Char>);
FMT_FORMAT_AS(std::nullptr_t, const void*);
-FMT_FORMAT_AS(internal::std_string_view<Char>, basic_string_view<Char>);
+FMT_FORMAT_AS(detail::std_string_view<Char>, basic_string_view<Char>);
template <typename Char>
struct formatter<void*, Char> : formatter<const void*, Char> {
@@ -3008,13 +3525,15 @@ struct formatter<Char[N], Char> : formatter<basic_string_view<Char>, Char> {
// using variant = std::variant<int, std::string>;
// template <>
// struct formatter<variant>: dynamic_formatter<> {
-// void format(buffer &buf, const variant &v, context &ctx) {
-// visit([&](const auto &val) { format(buf, val, ctx); }, v);
+// auto format(const variant& v, format_context& ctx) {
+// return visit([&](const auto& val) {
+// return dynamic_formatter<>::format(val, ctx);
+// }, v);
// }
// };
template <typename Char = char> class dynamic_formatter {
private:
- struct null_handler : internal::error_handler {
+ struct null_handler : detail::error_handler {
void on_align(align_t) {}
void on_plus() {}
void on_minus() {}
@@ -3027,16 +3546,15 @@ template <typename Char = char> class dynamic_formatter {
auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
format_str_ = ctx.begin();
// Checks are deferred to formatting time when the argument type is known.
- internal::dynamic_specs_handler<ParseContext> handler(specs_, ctx);
+ detail::dynamic_specs_handler<ParseContext> handler(specs_, ctx);
return parse_format_specs(ctx.begin(), ctx.end(), handler);
}
template <typename T, typename FormatContext>
auto format(const T& val, FormatContext& ctx) -> decltype(ctx.out()) {
handle_specs(ctx);
- internal::specs_checker<null_handler> checker(
- null_handler(),
- internal::mapped_type_constant<T, FormatContext>::value);
+ detail::specs_checker<null_handler> checker(
+ null_handler(), detail::mapped_type_constant<T, FormatContext>::value);
checker.on_align(specs_.align);
switch (specs_.sign) {
case sign::none:
@@ -3053,109 +3571,40 @@ template <typename Char = char> class dynamic_formatter {
}
if (specs_.alt) checker.on_hash();
if (specs_.precision >= 0) checker.end_precision();
- using range = internal::output_range<typename FormatContext::iterator,
- typename FormatContext::char_type>;
- visit_format_arg(arg_formatter<range>(ctx, nullptr, &specs_),
- internal::make_arg<FormatContext>(val));
+ using af = detail::arg_formatter<typename FormatContext::iterator,
+ typename FormatContext::char_type>;
+ visit_format_arg(af(ctx, nullptr, &specs_),
+ detail::make_arg<FormatContext>(val));
return ctx.out();
}
private:
template <typename Context> void handle_specs(Context& ctx) {
- internal::handle_dynamic_spec<internal::width_checker>(
- specs_.width, specs_.width_ref, ctx);
- internal::handle_dynamic_spec<internal::precision_checker>(
+ detail::handle_dynamic_spec<detail::width_checker>(specs_.width,
+ specs_.width_ref, ctx);
+ detail::handle_dynamic_spec<detail::precision_checker>(
specs_.precision, specs_.precision_ref, ctx);
}
- internal::dynamic_format_specs<Char> specs_;
+ detail::dynamic_format_specs<Char> specs_;
const Char* format_str_;
};
-template <typename Range, typename Char>
-typename basic_format_context<Range, Char>::format_arg
-basic_format_context<Range, Char>::arg(basic_string_view<char_type> name) {
- map_.init(args_);
- format_arg arg = map_.find(name);
- if (arg.type() == internal::none_type) this->on_error("argument not found");
- return arg;
-}
-
template <typename Char, typename ErrorHandler>
FMT_CONSTEXPR void advance_to(
basic_format_parse_context<Char, ErrorHandler>& ctx, const Char* p) {
ctx.advance_to(ctx.begin() + (p - &*ctx.begin()));
}
-template <typename ArgFormatter, typename Char, typename Context>
-struct format_handler : internal::error_handler {
- using range = typename ArgFormatter::range;
+/**
+ \rst
+ Converts ``p`` to ``const void*`` for pointer formatting.
- format_handler(range r, basic_string_view<Char> str,
- basic_format_args<Context> format_args,
- internal::locale_ref loc)
- : parse_context(str), context(r.begin(), format_args, loc) {}
+ **Example**::
- void on_text(const Char* begin, const Char* end) {
- auto size = internal::to_unsigned(end - begin);
- auto out = context.out();
- auto&& it = internal::reserve(out, size);
- it = std::copy_n(begin, size, it);
- context.advance_to(out);
- }
-
- void get_arg(int id) { arg = internal::get_arg(context, id); }
-
- void on_arg_id() { get_arg(parse_context.next_arg_id()); }
- void on_arg_id(int id) {
- parse_context.check_arg_id(id);
- get_arg(id);
- }
- void on_arg_id(basic_string_view<Char> id) { arg = context.arg(id); }
-
- void on_replacement_field(const Char* p) {
- advance_to(parse_context, p);
- context.advance_to(
- visit_format_arg(ArgFormatter(context, &parse_context), arg));
- }
-
- const Char* on_format_specs(const Char* begin, const Char* end) {
- advance_to(parse_context, begin);
- internal::custom_formatter<Context> f(parse_context, context);
- if (visit_format_arg(f, arg)) return parse_context.begin();
- basic_format_specs<Char> specs;
- using internal::specs_handler;
- using parse_context_t = basic_format_parse_context<Char>;
- internal::specs_checker<specs_handler<parse_context_t, Context>> handler(
- specs_handler<parse_context_t, Context>(specs, parse_context, context),
- arg.type());
- begin = parse_format_specs(begin, end, handler);
- if (begin == end || *begin != '}') on_error("missing '}' in format string");
- advance_to(parse_context, begin);
- context.advance_to(
- visit_format_arg(ArgFormatter(context, &parse_context, &specs), arg));
- return begin;
- }
-
- basic_format_parse_context<Char> parse_context;
- Context context;
- basic_format_arg<Context> arg;
-};
-
-/** Formats arguments and writes the output to the range. */
-template <typename ArgFormatter, typename Char, typename Context>
-typename Context::iterator vformat_to(
- typename ArgFormatter::range out, basic_string_view<Char> format_str,
- basic_format_args<Context> args,
- internal::locale_ref loc = internal::locale_ref()) {
- format_handler<ArgFormatter, Char, Context> h(out, format_str, args, loc);
- internal::parse_format_string<false>(format_str, h);
- return h.context.out();
-}
-
-// Casts ``p`` to ``const void*`` for pointer formatting.
-// Example:
-// auto s = format("{}", ptr(p));
+ auto s = fmt::format("{}", fmt::ptr(p));
+ \endrst
+ */
template <typename T> inline const void* ptr(const T* p) { return p; }
template <typename T> inline const void* ptr(const std::unique_ptr<T>& p) {
return p.get();
@@ -3164,19 +3613,55 @@ template <typename T> inline const void* ptr(const std::shared_ptr<T>& p) {
return p.get();
}
-template <typename It, typename Char> struct arg_join : internal::view {
- It begin;
- It end;
- basic_string_view<Char> sep;
+class bytes {
+ private:
+ string_view data_;
+ friend struct formatter<bytes>;
- arg_join(It b, It e, basic_string_view<Char> s) : begin(b), end(e), sep(s) {}
+ public:
+ explicit bytes(string_view data) : data_(data) {}
};
-template <typename It, typename Char>
-struct formatter<arg_join<It, Char>, Char>
+template <> struct formatter<bytes> {
+ private:
+ detail::dynamic_format_specs<char> specs_;
+
+ public:
+ template <typename ParseContext>
+ FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+ using handler_type = detail::dynamic_specs_handler<ParseContext>;
+ detail::specs_checker<handler_type> handler(handler_type(specs_, ctx),
+ detail::type::string_type);
+ auto it = parse_format_specs(ctx.begin(), ctx.end(), handler);
+ detail::check_string_type_spec(specs_.type, ctx.error_handler());
+ return it;
+ }
+
+ template <typename FormatContext>
+ auto format(bytes b, FormatContext& ctx) -> decltype(ctx.out()) {
+ detail::handle_dynamic_spec<detail::width_checker>(specs_.width,
+ specs_.width_ref, ctx);
+ detail::handle_dynamic_spec<detail::precision_checker>(
+ specs_.precision, specs_.precision_ref, ctx);
+ return detail::write_bytes(ctx.out(), b.data_, specs_);
+ }
+};
+
+template <typename It, typename Sentinel, typename Char>
+struct arg_join : detail::view {
+ It begin;
+ Sentinel end;
+ basic_string_view<Char> sep;
+
+ arg_join(It b, Sentinel e, basic_string_view<Char> s)
+ : begin(b), end(e), sep(s) {}
+};
+
+template <typename It, typename Sentinel, typename Char>
+struct formatter<arg_join<It, Sentinel, Char>, Char>
: formatter<typename std::iterator_traits<It>::value_type, Char> {
template <typename FormatContext>
- auto format(const arg_join<It, Char>& value, FormatContext& ctx)
+ auto format(const arg_join<It, Sentinel, Char>& value, FormatContext& ctx)
-> decltype(ctx.out()) {
using base = formatter<typename std::iterator_traits<It>::value_type, Char>;
auto it = value.begin;
@@ -3197,13 +3682,13 @@ struct formatter<arg_join<It, Char>, Char>
Returns an object that formats the iterator range `[begin, end)` with elements
separated by `sep`.
*/
-template <typename It>
-arg_join<It, char> join(It begin, It end, string_view sep) {
+template <typename It, typename Sentinel>
+arg_join<It, Sentinel, char> join(It begin, Sentinel end, string_view sep) {
return {begin, end, sep};
}
-template <typename It>
-arg_join<It, wchar_t> join(It begin, It end, wstring_view sep) {
+template <typename It, typename Sentinel>
+arg_join<It, Sentinel, wchar_t> join(It begin, Sentinel end, wstring_view sep) {
return {begin, end, sep};
}
@@ -3216,24 +3701,28 @@ arg_join<It, wchar_t> join(It begin, It end, wstring_view sep) {
std::vector<int> v = {1, 2, 3};
fmt::print("{}", fmt::join(v, ", "));
// Output: "1, 2, 3"
+
+ ``fmt::join`` applies passed format specifiers to the range elements::
+
+ fmt::print("{:02}", fmt::join(v, ", "));
+ // Output: "01, 02, 03"
\endrst
*/
template <typename Range>
-arg_join<internal::iterator_t<const Range>, char> join(const Range& range,
- string_view sep) {
+arg_join<detail::iterator_t<Range>, detail::sentinel_t<Range>, char> join(
+ Range&& range, string_view sep) {
return join(std::begin(range), std::end(range), sep);
}
template <typename Range>
-arg_join<internal::iterator_t<const Range>, wchar_t> join(const Range& range,
- wstring_view sep) {
+arg_join<detail::iterator_t<Range>, detail::sentinel_t<Range>, wchar_t> join(
+ Range&& range, wstring_view sep) {
return join(std::begin(range), std::end(range), sep);
}
/**
\rst
Converts *value* to ``std::string`` using the default format for type *T*.
- It doesn't support user-defined types with custom formatters.
**Example**::
@@ -3242,8 +3731,21 @@ arg_join<internal::iterator_t<const Range>, wchar_t> join(const Range& range,
std::string answer = fmt::to_string(42);
\endrst
*/
-template <typename T> inline std::string to_string(const T& value) {
- return format("{}", value);
+template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
+inline std::string to_string(const T& value) {
+ std::string result;
+ detail::write<char>(std::back_inserter(result), value);
+ return result;
+}
+
+template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+inline std::string to_string(T value) {
+ // The buffer should be large enough to store the number including the sign or
+ // "false" for bool.
+ constexpr int max_size = detail::digits10<T>() + 2;
+ char buffer[max_size > 5 ? static_cast<unsigned>(max_size) : 5];
+ char* begin = buffer;
+ return std::string(begin, detail::write<char>(begin, value));
}
/**
@@ -3253,36 +3755,75 @@ template <typename T> inline std::wstring to_wstring(const T& value) {
return format(L"{}", value);
}
-template <typename Char, std::size_t SIZE>
+template <typename Char, size_t SIZE>
std::basic_string<Char> to_string(const basic_memory_buffer<Char, SIZE>& buf) {
- return std::basic_string<Char>(buf.data(), buf.size());
+ auto size = buf.size();
+ detail::assume(size < std::basic_string<Char>().max_size());
+ return std::basic_string<Char>(buf.data(), size);
}
template <typename Char>
-typename buffer_context<Char>::iterator internal::vformat_to(
- internal::buffer<Char>& buf, basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
- using range = buffer_range<Char>;
- return vformat_to<arg_formatter<range>>(buf, to_string_view(format_str),
- args);
+void detail::vformat_to(
+ detail::buffer<Char>& buf, basic_string_view<Char> format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args,
+ detail::locale_ref loc) {
+ using iterator = typename buffer_context<Char>::iterator;
+ auto out = buffer_appender<Char>(buf);
+ if (format_str.size() == 2 && equal2(format_str.data(), "{}")) {
+ auto arg = args.get(0);
+ if (!arg) error_handler().on_error("argument not found");
+ visit_format_arg(default_arg_formatter<iterator, Char>{out, args, loc},
+ arg);
+ return;
+ }
+ format_handler<iterator, Char, buffer_context<Char>> h(
+ out, format_str, args, loc);
+ parse_format_string<false>(format_str, h);
}
+#ifndef FMT_HEADER_ONLY
+extern template void detail::vformat_to(detail::buffer<char>&, string_view,
+ basic_format_args<format_context>,
+ detail::locale_ref);
+namespace detail {
+extern template FMT_API std::string grouping_impl<char>(locale_ref loc);
+extern template FMT_API std::string grouping_impl<wchar_t>(locale_ref loc);
+extern template FMT_API char thousands_sep_impl<char>(locale_ref loc);
+extern template FMT_API wchar_t thousands_sep_impl<wchar_t>(locale_ref loc);
+extern template FMT_API char decimal_point_impl(locale_ref loc);
+extern template FMT_API wchar_t decimal_point_impl(locale_ref loc);
+extern template int format_float<double>(double value, int precision,
+ float_specs specs, buffer<char>& buf);
+extern template int format_float<long double>(long double value, int precision,
+ float_specs specs,
+ buffer<char>& buf);
+int snprintf_float(float value, int precision, float_specs specs,
+ buffer<char>& buf) = delete;
+extern template int snprintf_float<double>(double value, int precision,
+ float_specs specs,
+ buffer<char>& buf);
+extern template int snprintf_float<long double>(long double value,
+ int precision,
+ float_specs specs,
+ buffer<char>& buf);
+} // namespace detail
+#endif
+
template <typename S, typename Char = char_t<S>,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
-inline typename buffer_context<Char>::iterator vformat_to(
- internal::buffer<Char>& buf, const S& format_str,
- basic_format_args<buffer_context<Char>> args) {
- return internal::vformat_to(buf, to_string_view(format_str), args);
+ FMT_ENABLE_IF(detail::is_string<S>::value)>
+inline void vformat_to(
+ detail::buffer<Char>& buf, const S& format_str,
+ basic_format_args<FMT_BUFFER_CONTEXT(type_identity_t<Char>)> args) {
+ return detail::vformat_to(buf, to_string_view(format_str), args);
}
-template <typename S, typename... Args, std::size_t SIZE = inline_buffer_size,
- typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
+template <typename S, typename... Args, size_t SIZE = inline_buffer_size,
+ typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline typename buffer_context<Char>::iterator format_to(
basic_memory_buffer<Char, SIZE>& buf, const S& format_str, Args&&... args) {
- internal::check_format_string<Args...>(format_str);
- using context = buffer_context<Char>;
- return internal::vformat_to(buf, to_string_view(format_str),
- {make_format_args<context>(args...)});
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ detail::vformat_to(buf, to_string_view(format_str), vargs);
+ return detail::buffer_appender<Char>(buf);
}
template <typename OutputIt, typename Char = char>
@@ -3291,113 +3832,33 @@ using format_context_t = basic_format_context<OutputIt, Char>;
template <typename OutputIt, typename Char = char>
using format_args_t = basic_format_args<format_context_t<OutputIt, Char>>;
-template <typename S, typename OutputIt, typename... Args,
- FMT_ENABLE_IF(
- internal::is_output_iterator<OutputIt>::value &&
- !internal::is_contiguous_back_insert_iterator<OutputIt>::value)>
-inline OutputIt vformat_to(OutputIt out, const S& format_str,
- format_args_t<OutputIt, char_t<S>> args) {
- using range = internal::output_range<OutputIt, char_t<S>>;
- return vformat_to<arg_formatter<range>>(range(out),
- to_string_view(format_str), args);
-}
-
-/**
- \rst
- Formats arguments, writes the result to the output iterator ``out`` and returns
- the iterator past the end of the output range.
-
- **Example**::
-
- std::vector<char> out;
- fmt::format_to(std::back_inserter(out), "{}", 42);
- \endrst
- */
-template <typename OutputIt, typename S, typename... Args,
- FMT_ENABLE_IF(
- internal::is_output_iterator<OutputIt>::value &&
- !internal::is_contiguous_back_insert_iterator<OutputIt>::value &&
- internal::is_string<S>::value)>
-inline OutputIt format_to(OutputIt out, const S& format_str, Args&&... args) {
- internal::check_format_string<Args...>(format_str);
- using context = format_context_t<OutputIt, char_t<S>>;
- return vformat_to(out, to_string_view(format_str),
- {make_format_args<context>(args...)});
-}
-
-template <typename OutputIt> struct format_to_n_result {
- /** Iterator past the end of the output range. */
- OutputIt out;
- /** Total (not truncated) output size. */
- std::size_t size;
-};
+template <typename OutputIt, typename Char = typename OutputIt::value_type>
+using format_to_n_context FMT_DEPRECATED_ALIAS = buffer_context<Char>;
template <typename OutputIt, typename Char = typename OutputIt::value_type>
-using format_to_n_context =
- format_context_t<internal::truncating_iterator<OutputIt>, Char>;
-
-template <typename OutputIt, typename Char = typename OutputIt::value_type>
-using format_to_n_args = basic_format_args<format_to_n_context<OutputIt, Char>>;
+using format_to_n_args FMT_DEPRECATED_ALIAS =
+ basic_format_args<buffer_context<Char>>;
template <typename OutputIt, typename Char, typename... Args>
-inline format_arg_store<format_to_n_context<OutputIt, Char>, Args...>
+FMT_DEPRECATED format_arg_store<buffer_context<Char>, Args...>
make_format_to_n_args(const Args&... args) {
- return format_arg_store<format_to_n_context<OutputIt, Char>, Args...>(
- args...);
+ return format_arg_store<buffer_context<Char>, Args...>(args...);
}
-template <typename OutputIt, typename Char, typename... Args,
- FMT_ENABLE_IF(internal::is_output_iterator<OutputIt>::value)>
-inline format_to_n_result<OutputIt> vformat_to_n(
- OutputIt out, std::size_t n, basic_string_view<Char> format_str,
- format_to_n_args<OutputIt, Char> args) {
- auto it = vformat_to(internal::truncating_iterator<OutputIt>(out, n),
- format_str, args);
- return {it.base(), it.count()};
-}
-
-/**
- \rst
- Formats arguments, writes up to ``n`` characters of the result to the output
- iterator ``out`` and returns the total output size and the iterator past the
- end of the output range.
- \endrst
- */
-template <typename OutputIt, typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value&&
- internal::is_output_iterator<OutputIt>::value)>
-inline format_to_n_result<OutputIt> format_to_n(OutputIt out, std::size_t n,
- const S& format_str,
- const Args&... args) {
- internal::check_format_string<Args...>(format_str);
- using context = format_to_n_context<OutputIt, char_t<S>>;
- return vformat_to_n(out, n, to_string_view(format_str),
- {make_format_args<context>(args...)});
-}
-
-template <typename Char>
-inline std::basic_string<Char> internal::vformat(
+template <typename Char, enable_if_t<(!std::is_same<Char, char>::value), int>>
+std::basic_string<Char> detail::vformat(
basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- internal::vformat_to(buffer, format_str, args);
+ detail::vformat_to(buffer, format_str, args);
return to_string(buffer);
}
-/**
- Returns the number of characters in the output of
- ``format(format_str, args...)``.
- */
-template <typename... Args>
-inline std::size_t formatted_size(string_view format_str, const Args&... args) {
- return format_to(internal::counting_iterator(), format_str, args...).count();
-}
-
template <typename Char, FMT_ENABLE_IF(std::is_same<Char, wchar_t>::value)>
void vprint(std::FILE* f, basic_string_view<Char> format_str,
wformat_args args) {
wmemory_buffer buffer;
- internal::vformat_to(buffer, format_str, args);
+ detail::vformat_to(buffer, format_str, args);
buffer.push_back(L'\0');
if (std::fputws(buffer.data(), f) == -1)
FMT_THROW(system_error(errno, "cannot write to file"));
@@ -3409,19 +3870,15 @@ void vprint(basic_string_view<Char> format_str, wformat_args args) {
}
#if FMT_USE_USER_DEFINED_LITERALS
-namespace internal {
+namespace detail {
# if FMT_USE_UDL_TEMPLATE
template <typename Char, Char... CHARS> class udl_formatter {
public:
template <typename... Args>
std::basic_string<Char> operator()(Args&&... args) const {
- FMT_CONSTEXPR_DECL Char s[] = {CHARS..., '\0'};
- FMT_CONSTEXPR_DECL bool invalid_format =
- do_check_format_string<Char, error_handler, remove_cvref_t<Args>...>(
- basic_string_view<Char>(s, sizeof...(CHARS)));
- (void)invalid_format;
- return format(s, std::forward<Args>(args)...);
+ static FMT_CONSTEXPR_DECL Char s[] = {CHARS..., '\0'};
+ return format(FMT_STRING(s), std::forward<Args>(args)...);
}
};
# else
@@ -3436,23 +3893,23 @@ template <typename Char> struct udl_formatter {
# endif // FMT_USE_UDL_TEMPLATE
template <typename Char> struct udl_arg {
- basic_string_view<Char> str;
+ const Char* str;
- template <typename T> named_arg<T, Char> operator=(T&& value) const {
+ template <typename T> named_arg<Char, T> operator=(T&& value) const {
return {str, std::forward<T>(value)};
}
};
-
-} // namespace internal
+} // namespace detail
inline namespace literals {
# if FMT_USE_UDL_TEMPLATE
# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wpedantic"
# if FMT_CLANG_VERSION
# pragma GCC diagnostic ignored "-Wgnu-string-literal-operator-template"
# endif
template <typename Char, Char... CHARS>
-FMT_CONSTEXPR internal::udl_formatter<Char, CHARS...> operator""_format() {
+FMT_CONSTEXPR detail::udl_formatter<Char, CHARS...> operator""_format() {
return {};
}
# pragma GCC diagnostic pop
@@ -3467,12 +3924,12 @@ FMT_CONSTEXPR internal::udl_formatter<Char, CHARS...> operator""_format() {
std::string message = "The answer is {}"_format(42);
\endrst
*/
-FMT_CONSTEXPR internal::udl_formatter<char> operator"" _format(const char* s,
- std::size_t n) {
+FMT_CONSTEXPR detail::udl_formatter<char> operator"" _format(const char* s,
+ size_t n) {
return {{s, n}};
}
-FMT_CONSTEXPR internal::udl_formatter<wchar_t> operator"" _format(
- const wchar_t* s, std::size_t n) {
+FMT_CONSTEXPR detail::udl_formatter<wchar_t> operator"" _format(
+ const wchar_t* s, size_t n) {
return {{s, n}};
}
# endif // FMT_USE_UDL_TEMPLATE
@@ -3487,50 +3944,16 @@ FMT_CONSTEXPR internal::udl_formatter<wchar_t> operator"" _format(
fmt::print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
\endrst
*/
-FMT_CONSTEXPR internal::udl_arg<char> operator"" _a(const char* s,
- std::size_t n) {
- return {{s, n}};
+FMT_CONSTEXPR detail::udl_arg<char> operator"" _a(const char* s, size_t) {
+ return {s};
}
-FMT_CONSTEXPR internal::udl_arg<wchar_t> operator"" _a(const wchar_t* s,
- std::size_t n) {
- return {{s, n}};
+FMT_CONSTEXPR detail::udl_arg<wchar_t> operator"" _a(const wchar_t* s, size_t) {
+ return {s};
}
} // namespace literals
#endif // FMT_USE_USER_DEFINED_LITERALS
FMT_END_NAMESPACE
-#define FMT_STRING_IMPL(s, ...) \
- [] { \
- struct str : fmt::compile_string { \
- using char_type = typename std::remove_cv<std::remove_pointer< \
- typename std::decay<decltype(s)>::type>::type>::type; \
- __VA_ARGS__ FMT_CONSTEXPR \
- operator fmt::basic_string_view<char_type>() const { \
- return {s, sizeof(s) / sizeof(char_type) - 1}; \
- } \
- } result; \
- /* Suppress Qt Creator warning about unused operator. */ \
- (void)static_cast<fmt::basic_string_view<typename str::char_type>>( \
- result); \
- return result; \
- }()
-
-/**
- \rst
- Constructs a compile-time format string.
-
- **Example**::
-
- // A compile-time error because 'd' is an invalid specifier for strings.
- std::string s = format(FMT_STRING("{:d}"), "foo");
- \endrst
- */
-#define FMT_STRING(s) FMT_STRING_IMPL(s, )
-
-#if defined(FMT_STRING_ALIAS) && FMT_STRING_ALIAS
-# define fmt(s) FMT_STRING_IMPL(s, [[deprecated]])
-#endif
-
#ifdef FMT_HEADER_ONLY
# define FMT_FUNC inline
# include "format-inl.h"
diff --git a/Externals/fmt/include/fmt/locale.h b/Externals/fmt/include/fmt/locale.h
index 7c13656e4f..517f65054f 100755
--- a/Externals/fmt/include/fmt/locale.h
+++ b/Externals/fmt/include/fmt/locale.h
@@ -9,67 +9,54 @@
#define FMT_LOCALE_H_
#include <locale>
+
#include "format.h"
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
template <typename Char>
-typename buffer_context<Char>::iterator vformat_to(
- const std::locale& loc, buffer<Char>& buf,
- basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
- using range = buffer_range<Char>;
- return vformat_to<arg_formatter<range>>(buf, to_string_view(format_str), args,
- internal::locale_ref(loc));
-}
-
-template <typename Char>
-std::basic_string<Char> vformat(const std::locale& loc,
- basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
+std::basic_string<Char> vformat(
+ const std::locale& loc, basic_string_view<Char> format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- internal::vformat_to(loc, buffer, format_str, args);
+ detail::vformat_to(buffer, format_str, args, detail::locale_ref(loc));
return fmt::to_string(buffer);
}
-} // namespace internal
+} // namespace detail
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vformat(
const std::locale& loc, const S& format_str,
- basic_format_args<buffer_context<Char>> args) {
- return internal::vformat(loc, to_string_view(format_str), args);
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ return detail::vformat(loc, to_string_view(format_str), args);
}
template <typename S, typename... Args, typename Char = char_t<S>>
inline std::basic_string<Char> format(const std::locale& loc,
const S& format_str, Args&&... args) {
- return internal::vformat(
- loc, to_string_view(format_str),
- {internal::make_args_checked<Args...>(format_str, args...)});
+ return detail::vformat(loc, to_string_view(format_str),
+ fmt::make_args_checked<Args...>(format_str, args...));
}
template <typename S, typename OutputIt, typename... Args,
- typename Char = enable_if_t<
- internal::is_output_iterator<OutputIt>::value, char_t<S>>>
-inline OutputIt vformat_to(OutputIt out, const std::locale& loc,
- const S& format_str,
- format_args_t<OutputIt, Char> args) {
- using range = internal::output_range<OutputIt, Char>;
- return vformat_to<arg_formatter<range>>(
- range(out), to_string_view(format_str), args, internal::locale_ref(loc));
+ typename Char = char_t<S>,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
+inline OutputIt vformat_to(
+ OutputIt out, const std::locale& loc, const S& format_str,
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+ decltype(detail::get_buffer<Char>(out)) buf(detail::get_buffer_init(out));
+ vformat_to(buf, to_string_view(format_str), args, detail::locale_ref(loc));
+ return detail::get_iterator(buf);
}
template <typename OutputIt, typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_output_iterator<OutputIt>::value&&
- internal::is_string<S>::value)>
+ typename Char = char_t<S>,
+ FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
inline OutputIt format_to(OutputIt out, const std::locale& loc,
const S& format_str, Args&&... args) {
- internal::check_format_string<Args...>(format_str);
- using context = format_context_t<OutputIt, char_t<S>>;
- format_arg_store<context, Args...> as{args...};
- return vformat_to(out, loc, to_string_view(format_str),
- basic_format_args<context>(as));
+ const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+ return vformat_to(out, loc, to_string_view(format_str), vargs);
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/os.h b/Externals/fmt/include/fmt/os.h
new file mode 100644
index 0000000000..881510065a
--- /dev/null
+++ b/Externals/fmt/include/fmt/os.h
@@ -0,0 +1,480 @@
+// Formatting library for C++ - optional OS-specific functionality
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_OS_H_
+#define FMT_OS_H_
+
+#if defined(__MINGW32__) || defined(__CYGWIN__)
+// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
+# undef __STRICT_ANSI__
+#endif
+
+#include <cerrno>
+#include <clocale> // for locale_t
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib> // for strtod_l
+
+#if defined __APPLE__ || defined(__FreeBSD__)
+# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
+#endif
+
+#include "format.h"
+
+// UWP doesn't provide _pipe.
+#if FMT_HAS_INCLUDE("winapifamily.h")
+# include <winapifamily.h>
+#endif
+#if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \
+ defined(__linux__)) && \
+ (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
+# include <fcntl.h> // for O_RDONLY
+# define FMT_USE_FCNTL 1
+#else
+# define FMT_USE_FCNTL 0
+#endif
+
+#ifndef FMT_POSIX
+# if defined(_WIN32) && !defined(__MINGW32__)
+// Fix warnings about deprecated symbols.
+# define FMT_POSIX(call) _##call
+# else
+# define FMT_POSIX(call) call
+# endif
+#endif
+
+// Calls to system functions are wrapped in FMT_SYSTEM for testability.
+#ifdef FMT_SYSTEM
+# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
+#else
+# define FMT_SYSTEM(call) ::call
+# ifdef _WIN32
+// Fix warnings about deprecated symbols.
+# define FMT_POSIX_CALL(call) ::_##call
+# else
+# define FMT_POSIX_CALL(call) ::call
+# endif
+#endif
+
+// Retries the expression while it evaluates to error_result and errno
+// equals to EINTR.
+#ifndef _WIN32
+# define FMT_RETRY_VAL(result, expression, error_result) \
+ do { \
+ (result) = (expression); \
+ } while ((result) == (error_result) && errno == EINTR)
+#else
+# define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
+#endif
+
+#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
+
+FMT_BEGIN_NAMESPACE
+
+/**
+ \rst
+ A reference to a null-terminated string. It can be constructed from a C
+ string or ``std::string``.
+
+ You can use one of the following type aliases for common character types:
+
+ +---------------+-----------------------------+
+ | Type | Definition |
+ +===============+=============================+
+ | cstring_view | basic_cstring_view<char> |
+ +---------------+-----------------------------+
+ | wcstring_view | basic_cstring_view<wchar_t> |
+ +---------------+-----------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(cstring_view format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+template <typename Char> class basic_cstring_view {
+ private:
+ const Char* data_;
+
+ public:
+ /** Constructs a string reference object from a C string. */
+ basic_cstring_view(const Char* s) : data_(s) {}
+
+ /**
+ \rst
+ Constructs a string reference from an ``std::string`` object.
+ \endrst
+ */
+ basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
+
+ /** Returns the pointer to a C string. */
+ const Char* c_str() const { return data_; }
+};
+
+using cstring_view = basic_cstring_view<char>;
+using wcstring_view = basic_cstring_view<wchar_t>;
+
+// An error code.
+class error_code {
+ private:
+ int value_;
+
+ public:
+ explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
+
+ int get() const FMT_NOEXCEPT { return value_; }
+};
+
+#ifdef _WIN32
+namespace detail {
+// A converter from UTF-16 to UTF-8.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class utf16_to_utf8 {
+ private:
+ memory_buffer buffer_;
+
+ public:
+ utf16_to_utf8() {}
+ FMT_API explicit utf16_to_utf8(wstring_view s);
+ operator string_view() const { return string_view(&buffer_[0], size()); }
+ size_t size() const { return buffer_.size() - 1; }
+ const char* c_str() const { return &buffer_[0]; }
+ std::string str() const { return std::string(&buffer_[0], size()); }
+
+ // Performs conversion returning a system error code instead of
+ // throwing exception on conversion error. This method may still throw
+ // in case of memory allocation error.
+ FMT_API int convert(wstring_view s);
+};
+
+FMT_API void format_windows_error(buffer<char>& out, int error_code,
+ string_view message) FMT_NOEXCEPT;
+} // namespace detail
+
+/** A Windows error. */
+class windows_error : public system_error {
+ private:
+ FMT_API void init(int error_code, string_view format_str, format_args args);
+
+ public:
+ /**
+ \rst
+ Constructs a :class:`fmt::windows_error` object with the description
+ of the form
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+ // This throws a windows_error with the description
+ // cannot open file 'madeup': The system cannot find the file specified.
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ LPOFSTRUCT of = LPOFSTRUCT();
+ HFILE file = OpenFile(filename, &of, OF_READ);
+ if (file == HFILE_ERROR) {
+ throw fmt::windows_error(GetLastError(),
+ "cannot open file '{}'", filename);
+ }
+ \endrst
+ */
+ template <typename... Args>
+ windows_error(int error_code, string_view message, const Args&... args) {
+ init(error_code, message, make_format_args(args...));
+ }
+};
+
+// Reports a Windows error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_windows_error(int error_code,
+ string_view message) FMT_NOEXCEPT;
+#endif // _WIN32
+
+// A buffered file.
+class buffered_file {
+ private:
+ FILE* file_;
+
+ friend class file;
+
+ explicit buffered_file(FILE* f) : file_(f) {}
+
+ public:
+ buffered_file(const buffered_file&) = delete;
+ void operator=(const buffered_file&) = delete;
+
+ // Constructs a buffered_file object which doesn't represent any file.
+ buffered_file() FMT_NOEXCEPT : file_(nullptr) {}
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~buffered_file() FMT_NOEXCEPT;
+
+ public:
+ buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) {
+ other.file_ = nullptr;
+ }
+
+ buffered_file& operator=(buffered_file&& other) {
+ close();
+ file_ = other.file_;
+ other.file_ = nullptr;
+ return *this;
+ }
+
+ // Opens a file.
+ FMT_API buffered_file(cstring_view filename, cstring_view mode);
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the pointer to a FILE object representing this file.
+ FILE* get() const FMT_NOEXCEPT { return file_; }
+
+ // We place parentheses around fileno to workaround a bug in some versions
+ // of MinGW that define fileno as a macro.
+ FMT_API int(fileno)() const;
+
+ void vprint(string_view format_str, format_args args) {
+ fmt::vprint(file_, format_str, args);
+ }
+
+ template <typename... Args>
+ inline void print(string_view format_str, const Args&... args) {
+ vprint(format_str, make_format_args(args...));
+ }
+};
+
+#if FMT_USE_FCNTL
+// A file. Closed file is represented by a file object with descriptor -1.
+// Methods that are not declared with FMT_NOEXCEPT may throw
+// fmt::system_error in case of failure. Note that some errors such as
+// closing the file multiple times will cause a crash on Windows rather
+// than an exception. You can get standard behavior by overriding the
+// invalid parameter handler with _set_invalid_parameter_handler.
+class file {
+ private:
+ int fd_; // File descriptor.
+
+ // Constructs a file object with a given descriptor.
+ explicit file(int fd) : fd_(fd) {}
+
+ public:
+ // Possible values for the oflag argument to the constructor.
+ enum {
+ RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
+ WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
+ RDWR = FMT_POSIX(O_RDWR), // Open for reading and writing.
+ CREATE = FMT_POSIX(O_CREAT), // Create if the file doesn't exist.
+ APPEND = FMT_POSIX(O_APPEND) // Open in append mode.
+ };
+
+ // Constructs a file object which doesn't represent any file.
+ file() FMT_NOEXCEPT : fd_(-1) {}
+
+ // Opens a file and constructs a file object representing this file.
+ FMT_API file(cstring_view path, int oflag);
+
+ public:
+ file(const file&) = delete;
+ void operator=(const file&) = delete;
+
+ file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
+
+ file& operator=(file&& other) FMT_NOEXCEPT {
+ close();
+ fd_ = other.fd_;
+ other.fd_ = -1;
+ return *this;
+ }
+
+ // Destroys the object closing the file it represents if any.
+ FMT_API ~file() FMT_NOEXCEPT;
+
+ // Returns the file descriptor.
+ int descriptor() const FMT_NOEXCEPT { return fd_; }
+
+ // Closes the file.
+ FMT_API void close();
+
+ // Returns the file size. The size has signed type for consistency with
+ // stat::st_size.
+ FMT_API long long size() const;
+
+ // Attempts to read count bytes from the file into the specified buffer.
+ FMT_API size_t read(void* buffer, size_t count);
+
+ // Attempts to write count bytes from the specified buffer to the file.
+ FMT_API size_t write(const void* buffer, size_t count);
+
+ // Duplicates a file descriptor with the dup function and returns
+ // the duplicate as a file object.
+ FMT_API static file dup(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd);
+
+ // Makes fd be the copy of this file descriptor, closing fd first if
+ // necessary.
+ FMT_API void dup2(int fd, error_code& ec) FMT_NOEXCEPT;
+
+ // Creates a pipe setting up read_end and write_end file objects for reading
+ // and writing respectively.
+ FMT_API static void pipe(file& read_end, file& write_end);
+
+ // Creates a buffered_file object associated with this file and detaches
+ // this file object from the file.
+ FMT_API buffered_file fdopen(const char* mode);
+};
+
+// Returns the memory page size.
+long getpagesize();
+
+namespace detail {
+
+struct buffer_size {
+ size_t value = 0;
+ buffer_size operator=(size_t val) const {
+ auto bs = buffer_size();
+ bs.value = val;
+ return bs;
+ }
+};
+
+struct ostream_params {
+ int oflag = file::WRONLY | file::CREATE;
+ size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
+
+ ostream_params() {}
+
+ template <typename... T>
+ ostream_params(T... params, int oflag) : ostream_params(params...) {
+ this->oflag = oflag;
+ }
+
+ template <typename... T>
+ ostream_params(T... params, detail::buffer_size bs)
+ : ostream_params(params...) {
+ this->buffer_size = bs.value;
+ }
+};
+} // namespace detail
+
+static constexpr detail::buffer_size buffer_size;
+
+// A fast output stream which is not thread-safe.
+class ostream final : private detail::buffer<char> {
+ private:
+ file file_;
+
+ void flush() {
+ if (size() == 0) return;
+ file_.write(data(), size());
+ clear();
+ }
+
+ void grow(size_t) final;
+
+ ostream(cstring_view path, const detail::ostream_params& params)
+ : file_(path, params.oflag) {
+ set(new char[params.buffer_size], params.buffer_size);
+ }
+
+ public:
+ ostream(ostream&& other)
+ : detail::buffer<char>(other.data(), other.size(), other.capacity()),
+ file_(std::move(other.file_)) {
+ other.set(nullptr, 0);
+ }
+ ~ostream() {
+ flush();
+ delete[] data();
+ }
+
+ template <typename... T>
+ friend ostream output_file(cstring_view path, T... params);
+
+ void close() {
+ flush();
+ file_.close();
+ }
+
+ template <typename S, typename... Args>
+ void print(const S& format_str, const Args&... args) {
+ format_to(detail::buffer_appender<char>(*this), format_str, args...);
+ }
+};
+
+/**
+ Opens a file for writing. Supported parameters passed in `params`:
+ * ``<integer>``: Output flags (``file::WRONLY | file::CREATE`` by default)
+ * ``buffer_size=<integer>``: Output buffer size
+ */
+template <typename... T>
+inline ostream output_file(cstring_view path, T... params) {
+ return {path, detail::ostream_params(params...)};
+}
+#endif // FMT_USE_FCNTL
+
+#ifdef FMT_LOCALE
+// A "C" numeric locale.
+class locale {
+ private:
+# ifdef _WIN32
+ using locale_t = _locale_t;
+
+ static void freelocale(locale_t loc) { _free_locale(loc); }
+
+ static double strtod_l(const char* nptr, char** endptr, _locale_t loc) {
+ return _strtod_l(nptr, endptr, loc);
+ }
+# endif
+
+ locale_t locale_;
+
+ public:
+ using type = locale_t;
+ locale(const locale&) = delete;
+ void operator=(const locale&) = delete;
+
+ locale() {
+# ifndef _WIN32
+ locale_ = FMT_SYSTEM(newlocale(LC_NUMERIC_MASK, "C", nullptr));
+# else
+ locale_ = _create_locale(LC_NUMERIC, "C");
+# endif
+ if (!locale_) FMT_THROW(system_error(errno, "cannot create locale"));
+ }
+ ~locale() { freelocale(locale_); }
+
+ type get() const { return locale_; }
+
+ // Converts string to floating-point number and advances str past the end
+ // of the parsed input.
+ double strtod(const char*& str) const {
+ char* end = nullptr;
+ double result = strtod_l(str, &end, locale_);
+ str = end;
+ return result;
+ }
+};
+using Locale FMT_DEPRECATED_ALIAS = locale;
+#endif // FMT_LOCALE
+FMT_END_NAMESPACE
+
+#endif // FMT_OS_H_
diff --git a/Externals/fmt/include/fmt/ostream.h b/Externals/fmt/include/fmt/ostream.h
index 72d078b20c..29c58ec13b 100755
--- a/Externals/fmt/include/fmt/ostream.h
+++ b/Externals/fmt/include/fmt/ostream.h
@@ -9,10 +9,15 @@
#define FMT_OSTREAM_H_
#include <ostream>
+
#include "format.h"
FMT_BEGIN_NAMESPACE
-namespace internal {
+
+template <typename Char> class basic_printf_parse_context;
+template <typename OutputIt, typename Char> class basic_printf_context;
+
+namespace detail {
template <class Char> class formatbuf : public std::basic_streambuf<Char> {
private:
@@ -44,17 +49,27 @@ template <class Char> class formatbuf : public std::basic_streambuf<Char> {
}
};
+struct converter {
+ template <typename T, FMT_ENABLE_IF(is_integral<T>::value)> converter(T);
+};
+
template <typename Char> struct test_stream : std::basic_ostream<Char> {
private:
- // Hide all operator<< from std::basic_ostream<Char>.
- void_t<> operator<<(null<>);
- void_t<> operator<<(const Char*);
-
- template <typename T, FMT_ENABLE_IF(std::is_convertible<T, int>::value &&
- !std::is_enum<T>::value)>
- void_t<> operator<<(T);
+ void_t<> operator<<(converter);
};
+// Hide insertion operators for built-in types.
+template <typename Char, typename Traits>
+void_t<> operator<<(std::basic_ostream<Char, Traits>&, Char);
+template <typename Char, typename Traits>
+void_t<> operator<<(std::basic_ostream<Char, Traits>&, char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, signed char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, unsigned char);
+
// Checks if T has a user-defined operator<< (e.g. not a member of
// std::ostream).
template <typename T, typename Char> class is_streamable {
@@ -75,7 +90,7 @@ template <typename T, typename Char> class is_streamable {
// Write the content of buf to os.
template <typename Char>
-void write(std::basic_ostream<Char>& os, buffer<Char>& buf) {
+void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
const Char* buf_data = buf.data();
using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
unsigned_streamsize size = buf.size();
@@ -93,32 +108,53 @@ void format_value(buffer<Char>& buf, const T& value,
locale_ref loc = locale_ref()) {
formatbuf<Char> format_buf(buf);
std::basic_ostream<Char> output(&format_buf);
+#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
if (loc) output.imbue(loc.get<std::locale>());
- output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+#endif
output << value;
- buf.resize(buf.size());
+ output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+ buf.try_resize(buf.size());
}
// Formats an object of type T that has an overloaded ostream operator<<.
template <typename T, typename Char>
struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
- : formatter<basic_string_view<Char>, Char> {
- template <typename Context>
- auto format(const T& value, Context& ctx) -> decltype(ctx.out()) {
+ : private formatter<basic_string_view<Char>, Char> {
+ FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
+ -> decltype(ctx.begin()) {
+ return formatter<basic_string_view<Char>, Char>::parse(ctx);
+ }
+ template <typename ParseCtx,
+ FMT_ENABLE_IF(std::is_same<
+ ParseCtx, basic_printf_parse_context<Char>>::value)>
+ auto parse(ParseCtx& ctx) -> decltype(ctx.begin()) {
+ return ctx.begin();
+ }
+
+ template <typename OutputIt>
+ auto format(const T& value, basic_format_context<OutputIt, Char>& ctx)
+ -> OutputIt {
basic_memory_buffer<Char> buffer;
format_value(buffer, value, ctx.locale());
basic_string_view<Char> str(buffer.data(), buffer.size());
return formatter<basic_string_view<Char>, Char>::format(str, ctx);
}
+ template <typename OutputIt>
+ auto format(const T& value, basic_printf_context<OutputIt, Char>& ctx)
+ -> OutputIt {
+ basic_memory_buffer<Char> buffer;
+ format_value(buffer, value, ctx.locale());
+ return std::copy(buffer.begin(), buffer.end(), ctx.out());
+ }
};
-} // namespace internal
+} // namespace detail
template <typename Char>
void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
- basic_format_args<buffer_context<Char>> args) {
+ basic_format_args<buffer_context<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- internal::vformat_to(buffer, format_str, args);
- internal::write(os, buffer);
+ detail::vformat_to(buffer, format_str, args);
+ detail::write_buffer(os, buffer);
}
/**
@@ -131,10 +167,10 @@ void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
\endrst
*/
template <typename S, typename... Args,
- typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
+ typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
void print(std::basic_ostream<Char>& os, const S& format_str, Args&&... args) {
vprint(os, to_string_view(format_str),
- {internal::make_args_checked<Args...>(format_str, args...)});
+ fmt::make_args_checked<Args...>(format_str, args...));
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/posix.h b/Externals/fmt/include/fmt/posix.h
index e68e226f3f..da19e9d530 100755
--- a/Externals/fmt/include/fmt/posix.h
+++ b/Externals/fmt/include/fmt/posix.h
@@ -1,321 +1,2 @@
-// A C++ interface to POSIX functions.
-//
-// Copyright (c) 2012 - 2016, Victor Zverovich
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_POSIX_H_
-#define FMT_POSIX_H_
-
-#if defined(__MINGW32__) || defined(__CYGWIN__)
-// Workaround MinGW bug https://sourceforge.net/p/mingw/bugs/2024/.
-# undef __STRICT_ANSI__
-#endif
-
-#include <cerrno>
-#include <clocale> // for locale_t
-#include <cstdio>
-#include <cstdlib> // for strtod_l
-
-#include <cstddef>
-
-#if defined __APPLE__ || defined(__FreeBSD__)
-# include <xlocale.h> // for LC_NUMERIC_MASK on OS X
-#endif
-
-#include "format.h"
-
-// UWP doesn't provide _pipe.
-#if FMT_HAS_INCLUDE("winapifamily.h")
-# include <winapifamily.h>
-#endif
-#if FMT_HAS_INCLUDE("fcntl.h") && \
- (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
-# include <fcntl.h> // for O_RDONLY
-# define FMT_USE_FCNTL 1
-#else
-# define FMT_USE_FCNTL 0
-#endif
-
-#ifndef FMT_POSIX
-# if defined(_WIN32) && !defined(__MINGW32__)
-// Fix warnings about deprecated symbols.
-# define FMT_POSIX(call) _##call
-# else
-# define FMT_POSIX(call) call
-# endif
-#endif
-
-// Calls to system functions are wrapped in FMT_SYSTEM for testability.
-#ifdef FMT_SYSTEM
-# define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
-#else
-# define FMT_SYSTEM(call) call
-# ifdef _WIN32
-// Fix warnings about deprecated symbols.
-# define FMT_POSIX_CALL(call) ::_##call
-# else
-# define FMT_POSIX_CALL(call) ::call
-# endif
-#endif
-
-// Retries the expression while it evaluates to error_result and errno
-// equals to EINTR.
-#ifndef _WIN32
-# define FMT_RETRY_VAL(result, expression, error_result) \
- do { \
- (result) = (expression); \
- } while ((result) == (error_result) && errno == EINTR)
-#else
-# define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
-#endif
-
-#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
-
-FMT_BEGIN_NAMESPACE
-
-/**
- \rst
- A reference to a null-terminated string. It can be constructed from a C
- string or ``std::string``.
-
- You can use one of the following type aliases for common character types:
-
- +---------------+-----------------------------+
- | Type | Definition |
- +===============+=============================+
- | cstring_view | basic_cstring_view<char> |
- +---------------+-----------------------------+
- | wcstring_view | basic_cstring_view<wchar_t> |
- +---------------+-----------------------------+
-
- This class is most useful as a parameter type to allow passing
- different types of strings to a function, for example::
-
- template <typename... Args>
- std::string format(cstring_view format_str, const Args & ... args);
-
- format("{}", 42);
- format(std::string("{}"), 42);
- \endrst
- */
-template <typename Char> class basic_cstring_view {
- private:
- const Char* data_;
-
- public:
- /** Constructs a string reference object from a C string. */
- basic_cstring_view(const Char* s) : data_(s) {}
-
- /**
- \rst
- Constructs a string reference from an ``std::string`` object.
- \endrst
- */
- basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
-
- /** Returns the pointer to a C string. */
- const Char* c_str() const { return data_; }
-};
-
-using cstring_view = basic_cstring_view<char>;
-using wcstring_view = basic_cstring_view<wchar_t>;
-
-// An error code.
-class error_code {
- private:
- int value_;
-
- public:
- explicit error_code(int value = 0) FMT_NOEXCEPT : value_(value) {}
-
- int get() const FMT_NOEXCEPT { return value_; }
-};
-
-// A buffered file.
-class buffered_file {
- private:
- FILE* file_;
-
- friend class file;
-
- explicit buffered_file(FILE* f) : file_(f) {}
-
- public:
- buffered_file(const buffered_file&) = delete;
- void operator=(const buffered_file&) = delete;
-
- // Constructs a buffered_file object which doesn't represent any file.
- buffered_file() FMT_NOEXCEPT : file_(nullptr) {}
-
- // Destroys the object closing the file it represents if any.
- FMT_API ~buffered_file() FMT_NOEXCEPT;
-
- public:
- buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) {
- other.file_ = nullptr;
- }
-
- buffered_file& operator=(buffered_file&& other) {
- close();
- file_ = other.file_;
- other.file_ = nullptr;
- return *this;
- }
-
- // Opens a file.
- FMT_API buffered_file(cstring_view filename, cstring_view mode);
-
- // Closes the file.
- FMT_API void close();
-
- // Returns the pointer to a FILE object representing this file.
- FILE* get() const FMT_NOEXCEPT { return file_; }
-
- // We place parentheses around fileno to workaround a bug in some versions
- // of MinGW that define fileno as a macro.
- FMT_API int(fileno)() const;
-
- void vprint(string_view format_str, format_args args) {
- fmt::vprint(file_, format_str, args);
- }
-
- template <typename... Args>
- inline void print(string_view format_str, const Args&... args) {
- vprint(format_str, make_format_args(args...));
- }
-};
-
-#if FMT_USE_FCNTL
-// A file. Closed file is represented by a file object with descriptor -1.
-// Methods that are not declared with FMT_NOEXCEPT may throw
-// fmt::system_error in case of failure. Note that some errors such as
-// closing the file multiple times will cause a crash on Windows rather
-// than an exception. You can get standard behavior by overriding the
-// invalid parameter handler with _set_invalid_parameter_handler.
-class file {
- private:
- int fd_; // File descriptor.
-
- // Constructs a file object with a given descriptor.
- explicit file(int fd) : fd_(fd) {}
-
- public:
- // Possible values for the oflag argument to the constructor.
- enum {
- RDONLY = FMT_POSIX(O_RDONLY), // Open for reading only.
- WRONLY = FMT_POSIX(O_WRONLY), // Open for writing only.
- RDWR = FMT_POSIX(O_RDWR) // Open for reading and writing.
- };
-
- // Constructs a file object which doesn't represent any file.
- file() FMT_NOEXCEPT : fd_(-1) {}
-
- // Opens a file and constructs a file object representing this file.
- FMT_API file(cstring_view path, int oflag);
-
- public:
- file(const file&) = delete;
- void operator=(const file&) = delete;
-
- file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
-
- file& operator=(file&& other) FMT_NOEXCEPT {
- close();
- fd_ = other.fd_;
- other.fd_ = -1;
- return *this;
- }
-
- // Destroys the object closing the file it represents if any.
- FMT_API ~file() FMT_NOEXCEPT;
-
- // Returns the file descriptor.
- int descriptor() const FMT_NOEXCEPT { return fd_; }
-
- // Closes the file.
- FMT_API void close();
-
- // Returns the file size. The size has signed type for consistency with
- // stat::st_size.
- FMT_API long long size() const;
-
- // Attempts to read count bytes from the file into the specified buffer.
- FMT_API std::size_t read(void* buffer, std::size_t count);
-
- // Attempts to write count bytes from the specified buffer to the file.
- FMT_API std::size_t write(const void* buffer, std::size_t count);
-
- // Duplicates a file descriptor with the dup function and returns
- // the duplicate as a file object.
- FMT_API static file dup(int fd);
-
- // Makes fd be the copy of this file descriptor, closing fd first if
- // necessary.
- FMT_API void dup2(int fd);
-
- // Makes fd be the copy of this file descriptor, closing fd first if
- // necessary.
- FMT_API void dup2(int fd, error_code& ec) FMT_NOEXCEPT;
-
- // Creates a pipe setting up read_end and write_end file objects for reading
- // and writing respectively.
- FMT_API static void pipe(file& read_end, file& write_end);
-
- // Creates a buffered_file object associated with this file and detaches
- // this file object from the file.
- FMT_API buffered_file fdopen(const char* mode);
-};
-
-// Returns the memory page size.
-long getpagesize();
-#endif // FMT_USE_FCNTL
-
-#ifdef FMT_LOCALE
-// A "C" numeric locale.
-class Locale {
- private:
-# ifdef _WIN32
- using locale_t = _locale_t;
-
- enum { LC_NUMERIC_MASK = LC_NUMERIC };
-
- static locale_t newlocale(int category_mask, const char* locale, locale_t) {
- return _create_locale(category_mask, locale);
- }
-
- static void freelocale(locale_t locale) { _free_locale(locale); }
-
- static double strtod_l(const char* nptr, char** endptr, _locale_t locale) {
- return _strtod_l(nptr, endptr, locale);
- }
-# endif
-
- locale_t locale_;
-
- public:
- using type = locale_t;
- Locale(const Locale&) = delete;
- void operator=(const Locale&) = delete;
-
- Locale() : locale_(newlocale(LC_NUMERIC_MASK, "C", nullptr)) {
- if (!locale_) FMT_THROW(system_error(errno, "cannot create locale"));
- }
- ~Locale() { freelocale(locale_); }
-
- type get() const { return locale_; }
-
- // Converts string to floating-point number and advances str past the end
- // of the parsed input.
- double strtod(const char*& str) const {
- char* end = nullptr;
- double result = strtod_l(str, &end, locale_);
- str = end;
- return result;
- }
-};
-#endif // FMT_LOCALE
-FMT_END_NAMESPACE
-
-#endif // FMT_POSIX_H_
+#include "os.h"
+#warning "fmt/posix.h is deprecated; use fmt/os.h instead"
diff --git a/Externals/fmt/include/fmt/printf.h b/Externals/fmt/include/fmt/printf.h
index a2fa945d4b..8c28ac2327 100755
--- a/Externals/fmt/include/fmt/printf.h
+++ b/Externals/fmt/include/fmt/printf.h
@@ -14,7 +14,7 @@
#include "ostream.h"
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
// Checks if a value fits in int - used to avoid warnings about comparing
// signed and unsigned integers.
@@ -28,7 +28,7 @@ template <bool IsSigned> struct int_checker {
template <> struct int_checker<true> {
template <typename T> static bool fits_in_int(T value) {
- return value >= std::numeric_limits<int>::min() &&
+ return value >= (std::numeric_limits<int>::min)() &&
value <= max_value<int>();
}
static bool fits_in_int(int) { return true; }
@@ -90,11 +90,11 @@ template <typename T, typename Context> class arg_converter {
if (const_check(sizeof(target_type) <= sizeof(int))) {
// Extra casts are used to silence warnings.
if (is_signed) {
- arg_ = internal::make_arg<Context>(
+ arg_ = detail::make_arg<Context>(
static_cast<int>(static_cast<target_type>(value)));
} else {
using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
- arg_ = internal::make_arg<Context>(
+ arg_ = detail::make_arg<Context>(
static_cast<unsigned>(static_cast<unsigned_type>(value)));
}
} else {
@@ -102,9 +102,9 @@ template <typename T, typename Context> class arg_converter {
// glibc's printf doesn't sign extend arguments of smaller types:
// std::printf("%lld", -42); // prints "4294967254"
// but we don't have to do the same because it's a UB.
- arg_ = internal::make_arg<Context>(static_cast<long long>(value));
+ arg_ = detail::make_arg<Context>(static_cast<long long>(value));
} else {
- arg_ = internal::make_arg<Context>(
+ arg_ = detail::make_arg<Context>(
static_cast<typename make_unsigned_or_bool<U>::type>(value));
}
}
@@ -133,7 +133,7 @@ template <typename Context> class char_converter {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
void operator()(T value) {
- arg_ = internal::make_arg<Context>(
+ arg_ = detail::make_arg<Context>(
static_cast<typename Context::char_type>(value));
}
@@ -141,6 +141,13 @@ template <typename Context> class char_converter {
void operator()(T) {} // No conversion needed for non-integral types.
};
+// An argument visitor that return a pointer to a C string if argument is a
+// string or null otherwise.
+template <typename Char> struct get_cstring {
+ template <typename T> const Char* operator()(T) { return nullptr; }
+ const Char* operator()(const Char* s) { return s; }
+};
+
// Checks if an argument is a valid printf width specifier and sets
// left alignment if it is negative.
template <typename Char> class printf_width_handler {
@@ -155,7 +162,7 @@ template <typename Char> class printf_width_handler {
template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
unsigned operator()(T value) {
auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
- if (internal::is_negative(value)) {
+ if (detail::is_negative(value)) {
specs_.align = align::left;
width = 0 - width;
}
@@ -172,23 +179,25 @@ template <typename Char> class printf_width_handler {
};
template <typename Char, typename Context>
-void printf(buffer<Char>& buf, basic_string_view<Char> format,
- basic_format_args<Context> args) {
- Context(std::back_inserter(buf), format, args).format();
+void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
+ basic_format_args<Context> args) {
+ Context(buffer_appender<Char>(buf), format, args).format();
}
+} // namespace detail
-template <typename OutputIt, typename Char, typename Context>
-internal::truncating_iterator<OutputIt> printf(
- internal::truncating_iterator<OutputIt> it, basic_string_view<Char> format,
- basic_format_args<Context> args) {
- return Context(it, format, args).format();
+// For printing into memory_buffer.
+template <typename Char, typename Context>
+FMT_DEPRECATED void printf(detail::buffer<Char>& buf,
+ basic_string_view<Char> format,
+ basic_format_args<Context> args) {
+ return detail::vprintf(buf, format, args);
}
-} // namespace internal
-
-using internal::printf; // For printing into memory_buffer.
-
-template <typename Range> class printf_arg_formatter;
+using detail::vprintf;
+template <typename Char>
+class basic_printf_parse_context : public basic_format_parse_context<Char> {
+ using basic_format_parse_context<Char>::basic_format_parse_context;
+};
template <typename OutputIt, typename Char> class basic_printf_context;
/**
@@ -196,15 +205,15 @@ template <typename OutputIt, typename Char> class basic_printf_context;
The ``printf`` argument formatter.
\endrst
*/
-template <typename Range>
-class printf_arg_formatter : public internal::arg_formatter_base<Range> {
+template <typename OutputIt, typename Char>
+class printf_arg_formatter : public detail::arg_formatter_base<OutputIt, Char> {
public:
- using iterator = typename Range::iterator;
+ using iterator = OutputIt;
private:
- using char_type = typename Range::value_type;
- using base = internal::arg_formatter_base<Range>;
- using context_type = basic_printf_context<iterator, char_type>;
+ using char_type = Char;
+ using base = detail::arg_formatter_base<OutputIt, Char>;
+ using context_type = basic_printf_context<OutputIt, Char>;
context_type& context_;
@@ -229,9 +238,9 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
\endrst
*/
printf_arg_formatter(iterator iter, format_specs& specs, context_type& ctx)
- : base(Range(iter), &specs, internal::locale_ref()), context_(ctx) {}
+ : base(iter, &specs, detail::locale_ref()), context_(ctx) {}
- template <typename T, FMT_ENABLE_IF(fmt::internal::is_integral<T>::value)>
+ template <typename T, FMT_ENABLE_IF(fmt::detail::is_integral<T>::value)>
iterator operator()(T value) {
// MSVC2013 fails to compile separate overloads for bool and char_type so
// use std::is_same instead.
@@ -246,7 +255,11 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
return (*this)(static_cast<int>(value));
fmt_specs.sign = sign::none;
fmt_specs.alt = false;
- fmt_specs.align = align::right;
+ fmt_specs.fill[0] = ' '; // Ignore '0' flag for char types.
+ // align::numeric needs to be overwritten here since the '0' flag is
+ // ignored for non-numeric types
+ if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
+ fmt_specs.align = align::right;
return base::operator()(value);
} else {
return base::operator()(value);
@@ -303,6 +316,8 @@ class printf_arg_formatter : public internal::arg_formatter_base<Range> {
};
template <typename T> struct printf_formatter {
+ printf_formatter() = delete;
+
template <typename ParseContext>
auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
return ctx.begin();
@@ -310,17 +325,21 @@ template <typename T> struct printf_formatter {
template <typename FormatContext>
auto format(const T& value, FormatContext& ctx) -> decltype(ctx.out()) {
- internal::format_value(internal::get_container(ctx.out()), value);
+ detail::format_value(detail::get_container(ctx.out()), value);
return ctx.out();
}
};
-/** This template formats data and writes the output to a writer. */
+/**
+ This template formats data and writes the output through an output iterator.
+ */
template <typename OutputIt, typename Char> class basic_printf_context {
public:
/** The character type for the output. */
using char_type = Char;
+ using iterator = OutputIt;
using format_arg = basic_format_arg<basic_printf_context>;
+ using parse_context_type = basic_printf_parse_context<Char>;
template <typename T> using formatter_type = printf_formatter<T>;
private:
@@ -328,7 +347,7 @@ template <typename OutputIt, typename Char> class basic_printf_context {
OutputIt out_;
basic_format_args<basic_printf_context> args_;
- basic_format_parse_context<Char> parse_ctx_;
+ parse_context_type parse_ctx_;
static void parse_flags(format_specs& specs, const Char*& it,
const Char* end);
@@ -343,9 +362,8 @@ template <typename OutputIt, typename Char> class basic_printf_context {
public:
/**
\rst
- Constructs a ``printf_context`` object. References to the arguments and
- the writer are stored in the context object so make sure they have
- appropriate lifetimes.
+ Constructs a ``printf_context`` object. References to the arguments are
+ stored in the context object so make sure they have appropriate lifetimes.
\endrst
*/
basic_printf_context(OutputIt out, basic_string_view<char_type> format_str,
@@ -355,16 +373,18 @@ template <typename OutputIt, typename Char> class basic_printf_context {
OutputIt out() { return out_; }
void advance_to(OutputIt it) { out_ = it; }
+ detail::locale_ref locale() { return {}; }
+
format_arg arg(int id) const { return args_.get(id); }
- basic_format_parse_context<Char>& parse_context() { return parse_ctx_; }
+ parse_context_type& parse_context() { return parse_ctx_; }
FMT_CONSTEXPR void on_error(const char* message) {
parse_ctx_.on_error(message);
}
/** Formats stored arguments and writes the output to the range. */
- template <typename ArgFormatter = printf_arg_formatter<buffer_range<Char>>>
+ template <typename ArgFormatter = printf_arg_formatter<OutputIt, Char>>
OutputIt format();
};
@@ -384,7 +404,9 @@ void basic_printf_context<OutputIt, Char>::parse_flags(format_specs& specs,
specs.fill[0] = '0';
break;
case ' ':
- specs.sign = sign::space;
+ if (specs.sign != sign::plus) {
+ specs.sign = sign::space;
+ }
break;
case '#':
specs.alt = true;
@@ -402,18 +424,19 @@ basic_printf_context<OutputIt, Char>::get_arg(int arg_index) {
arg_index = parse_ctx_.next_arg_id();
else
parse_ctx_.check_arg_id(--arg_index);
- return internal::get_arg(*this, arg_index);
+ return detail::get_arg(*this, arg_index);
}
template <typename OutputIt, typename Char>
-int basic_printf_context<OutputIt, Char>::parse_header(
- const Char*& it, const Char* end, format_specs& specs) {
+int basic_printf_context<OutputIt, Char>::parse_header(const Char*& it,
+ const Char* end,
+ format_specs& specs) {
int arg_index = -1;
char_type c = *it;
if (c >= '0' && c <= '9') {
// Parse an argument index (if followed by '$') or a width possibly
// preceded with '0' flag(s).
- internal::error_handler eh;
+ detail::error_handler eh;
int value = parse_nonnegative_int(it, end, eh);
if (it != end && *it == '$') { // value is an argument index
++it;
@@ -432,12 +455,12 @@ int basic_printf_context<OutputIt, Char>::parse_header(
// Parse width.
if (it != end) {
if (*it >= '0' && *it <= '9') {
- internal::error_handler eh;
+ detail::error_handler eh;
specs.width = parse_nonnegative_int(it, end, eh);
} else if (*it == '*') {
++it;
specs.width = static_cast<int>(visit_format_arg(
- internal::printf_width_handler<char_type>(specs), get_arg()));
+ detail::printf_width_handler<char_type>(specs), get_arg()));
}
}
return arg_index;
@@ -465,38 +488,52 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
// Parse argument index, flags and width.
int arg_index = parse_header(it, end, specs);
- if (arg_index == 0) on_error("argument index out of range");
+ if (arg_index == 0) on_error("argument not found");
// Parse precision.
if (it != end && *it == '.') {
++it;
c = it != end ? *it : 0;
if ('0' <= c && c <= '9') {
- internal::error_handler eh;
+ detail::error_handler eh;
specs.precision = parse_nonnegative_int(it, end, eh);
} else if (c == '*') {
++it;
- specs.precision =
- static_cast<int>(visit_format_arg(internal::printf_precision_handler(), get_arg()));
+ specs.precision = static_cast<int>(
+ visit_format_arg(detail::printf_precision_handler(), get_arg()));
} else {
specs.precision = 0;
}
}
format_arg arg = get_arg(arg_index);
- if (specs.alt && visit_format_arg(internal::is_zero_int(), arg))
+ // For d, i, o, u, x, and X conversion specifiers, if a precision is
+ // specified, the '0' flag is ignored
+ if (specs.precision >= 0 && arg.is_integral())
+ specs.fill[0] =
+ ' '; // Ignore '0' flag for non-numeric types or if '-' present.
+ if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
+ auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
+ auto str_end = str + specs.precision;
+ auto nul = std::find(str, str_end, Char());
+ arg = detail::make_arg<basic_printf_context>(basic_string_view<Char>(
+ str,
+ detail::to_unsigned(nul != str_end ? nul - str : specs.precision)));
+ }
+ if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
specs.alt = false;
if (specs.fill[0] == '0') {
- if (arg.is_arithmetic())
+ if (arg.is_arithmetic() && specs.align != align::left)
specs.align = align::numeric;
else
- specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types.
+ specs.fill[0] = ' '; // Ignore '0' flag for non-numeric types or if '-'
+ // flag is also present.
}
// Parse length and convert the argument to the required type.
c = it != end ? *it++ : 0;
char_type t = it != end ? *it : 0;
- using internal::convert_arg;
+ using detail::convert_arg;
switch (c) {
case 'h':
if (t == 'h') {
@@ -520,7 +557,7 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
convert_arg<intmax_t>(arg, t);
break;
case 'z':
- convert_arg<std::size_t>(arg, t);
+ convert_arg<size_t>(arg, t);
break;
case 't':
convert_arg<std::ptrdiff_t>(arg, t);
@@ -545,7 +582,7 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
specs.type = 'd';
break;
case 'c':
- visit_format_arg(internal::char_converter<basic_printf_context>(arg),
+ visit_format_arg(detail::char_converter<basic_printf_context>(arg),
arg);
break;
}
@@ -554,15 +591,14 @@ OutputIt basic_printf_context<OutputIt, Char>::format() {
start = it;
// Format argument.
- visit_format_arg(ArgFormatter(out, specs, *this), arg);
+ out = visit_format_arg(ArgFormatter(out, specs, *this), arg);
}
return std::copy(start, it, out);
}
template <typename Char>
using basic_printf_context_t =
- basic_printf_context<std::back_insert_iterator<internal::buffer<Char>>,
- Char>;
+ basic_printf_context<detail::buffer_appender<Char>, Char>;
using printf_context = basic_printf_context_t<char>;
using wprintf_context = basic_printf_context_t<wchar_t>;
@@ -596,9 +632,10 @@ inline format_arg_store<wprintf_context, Args...> make_wprintf_args(
template <typename S, typename Char = char_t<S>>
inline std::basic_string<Char> vsprintf(
- const S& format, basic_format_args<basic_printf_context_t<Char>> args) {
+ const S& format,
+ basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- printf(buffer, to_string_view(format), args);
+ vprintf(buffer, to_string_view(format), args);
return to_string(buffer);
}
@@ -612,18 +649,19 @@ inline std::basic_string<Char> vsprintf(
\endrst
*/
template <typename S, typename... Args,
- typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
+ typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline std::basic_string<Char> sprintf(const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
- return vsprintf(to_string_view(format), {make_format_args<context>(args...)});
+ return vsprintf(to_string_view(format), make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
-inline int vfprintf(std::FILE* f, const S& format,
- basic_format_args<basic_printf_context_t<Char>> args) {
+inline int vfprintf(
+ std::FILE* f, const S& format,
+ basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- printf(buffer, to_string_view(format), args);
- std::size_t size = buffer.size();
+ vprintf(buffer, to_string_view(format), args);
+ size_t size = buffer.size();
return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
? -1
: static_cast<int>(size);
@@ -639,16 +677,17 @@ inline int vfprintf(std::FILE* f, const S& format,
\endrst
*/
template <typename S, typename... Args,
- typename Char = enable_if_t<internal::is_string<S>::value, char_t<S>>>
+ typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
inline int fprintf(std::FILE* f, const S& format, const Args&... args) {
using context = basic_printf_context_t<Char>;
return vfprintf(f, to_string_view(format),
- {make_format_args<context>(args...)});
+ make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
-inline int vprintf(const S& format,
- basic_format_args<basic_printf_context_t<Char>> args) {
+inline int vprintf(
+ const S& format,
+ basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
return vfprintf(stdout, to_string_view(format), args);
}
@@ -662,19 +701,20 @@ inline int vprintf(const S& format,
\endrst
*/
template <typename S, typename... Args,
- FMT_ENABLE_IF(internal::is_string<S>::value)>
+ FMT_ENABLE_IF(detail::is_string<S>::value)>
inline int printf(const S& format_str, const Args&... args) {
using context = basic_printf_context_t<char_t<S>>;
return vprintf(to_string_view(format_str),
- {make_format_args<context>(args...)});
+ make_format_args<context>(args...));
}
template <typename S, typename Char = char_t<S>>
-inline int vfprintf(std::basic_ostream<Char>& os, const S& format,
- basic_format_args<basic_printf_context_t<Char>> args) {
+inline int vfprintf(
+ std::basic_ostream<Char>& os, const S& format,
+ basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args) {
basic_memory_buffer<Char> buffer;
- printf(buffer, to_string_view(format), args);
- internal::write(os, buffer);
+ vprintf(buffer, to_string_view(format), args);
+ detail::write_buffer(os, buffer);
return static_cast<int>(buffer.size());
}
@@ -682,9 +722,9 @@ inline int vfprintf(std::basic_ostream<Char>& os, const S& format,
template <typename ArgFormatter, typename Char,
typename Context =
basic_printf_context<typename ArgFormatter::iterator, Char>>
-typename ArgFormatter::iterator vprintf(internal::buffer<Char>& out,
- basic_string_view<Char> format_str,
- basic_format_args<Context> args) {
+typename ArgFormatter::iterator vprintf(
+ detail::buffer<Char>& out, basic_string_view<Char> format_str,
+ basic_format_args<type_identity_t<Context>> args) {
typename ArgFormatter::iterator iter(out);
Context(iter, format_str, args).template format<ArgFormatter>();
return iter;
@@ -704,7 +744,7 @@ inline int fprintf(std::basic_ostream<Char>& os, const S& format_str,
const Args&... args) {
using context = basic_printf_context_t<Char>;
return vfprintf(os, to_string_view(format_str),
- {make_format_args<context>(args...)});
+ make_format_args<context>(args...));
}
FMT_END_NAMESPACE
diff --git a/Externals/fmt/include/fmt/ranges.h b/Externals/fmt/include/fmt/ranges.h
index 6110fdaf19..b603d637d7 100755
--- a/Externals/fmt/include/fmt/ranges.h
+++ b/Externals/fmt/include/fmt/ranges.h
@@ -12,7 +12,9 @@
#ifndef FMT_RANGES_H_
#define FMT_RANGES_H_
+#include <initializer_list>
#include <type_traits>
+
#include "format.h"
// output only up to N items from the range.
@@ -31,7 +33,7 @@ template <typename Char> struct formatting_base {
template <typename Char, typename Enable = void>
struct formatting_range : formatting_base<Char> {
- static FMT_CONSTEXPR_DECL const std::size_t range_length_limit =
+ static FMT_CONSTEXPR_DECL const size_t range_length_limit =
FMT_RANGE_OUTPUT_LENGTH_LIMIT; // output only up to N items from the
// range.
Char prefix;
@@ -52,7 +54,7 @@ struct formatting_tuple : formatting_base<Char> {
static FMT_CONSTEXPR_DECL const bool add_prepostfix_space = false;
};
-namespace internal {
+namespace detail {
template <typename RangeT, typename OutputIterator>
OutputIterator copy(const RangeT& range, OutputIterator out) {
@@ -104,10 +106,7 @@ struct is_range_<
/// tuple_size and tuple_element check.
template <typename T> class is_tuple_like_ {
template <typename U>
- static auto check(U* p)
- -> decltype(std::tuple_size<U>::value,
- (void)std::declval<typename std::tuple_element<0, U>::type>(),
- int());
+ static auto check(U* p) -> decltype(std::tuple_size<U>::value, int());
template <typename> static void check(...);
public:
@@ -119,26 +118,24 @@ template <typename T> class is_tuple_like_ {
#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
template <typename T, T... N>
using integer_sequence = std::integer_sequence<T, N...>;
-template <std::size_t... N> using index_sequence = std::index_sequence<N...>;
-template <std::size_t N>
-using make_index_sequence = std::make_index_sequence<N>;
+template <size_t... N> using index_sequence = std::index_sequence<N...>;
+template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
#else
template <typename T, T... N> struct integer_sequence {
using value_type = T;
- static FMT_CONSTEXPR std::size_t size() { return sizeof...(N); }
+ static FMT_CONSTEXPR size_t size() { return sizeof...(N); }
};
-template <std::size_t... N>
-using index_sequence = integer_sequence<std::size_t, N...>;
+template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
-template <typename T, std::size_t N, T... Ns>
+template <typename T, size_t N, T... Ns>
struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
template <typename T, T... Ns>
struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
-template <std::size_t N>
-using make_index_sequence = make_integer_sequence<std::size_t, N>;
+template <size_t N>
+using make_index_sequence = make_integer_sequence<size_t, N>;
#endif
template <class Tuple, class F, size_t... Is>
@@ -160,6 +157,9 @@ template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) {
for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
}
+template <typename Range>
+using value_type = remove_cvref_t<decltype(*std::declval<Range>().begin())>;
+
template <typename Arg, FMT_ENABLE_IF(!is_like_std_string<
typename std::decay<Arg>::type>::value)>
FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const Arg&) {
@@ -185,12 +185,11 @@ FMT_CONSTEXPR const char* format_str_quoted(bool add_space, const char) {
FMT_CONSTEXPR const wchar_t* format_str_quoted(bool add_space, const wchar_t) {
return add_space ? L" '{}'" : L"'{}'";
}
-
-} // namespace internal
+} // namespace detail
template <typename T> struct is_tuple_like {
static FMT_CONSTEXPR_DECL const bool value =
- internal::is_tuple_like_<T>::value && !internal::is_range_<T>::value;
+ detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value;
};
template <typename TupleT, typename Char>
@@ -203,17 +202,17 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
- out = internal::copy(formatting.delimiter, out);
+ out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
- internal::format_str_quoted(
+ detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), v),
v);
++i;
}
formatting_tuple<Char>& formatting;
- std::size_t& i;
+ size_t& i;
typename std::add_lvalue_reference<decltype(
std::declval<FormatContext>().out())>::type out;
};
@@ -229,14 +228,14 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
template <typename FormatContext = format_context>
auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) {
auto out = ctx.out();
- std::size_t i = 0;
- internal::copy(formatting.prefix, out);
+ size_t i = 0;
+ detail::copy(formatting.prefix, out);
- internal::for_each(values, format_each<FormatContext>{formatting, i, out});
+ detail::for_each(values, format_each<FormatContext>{formatting, i, out});
if (formatting.add_prepostfix_space) {
*out++ = ' ';
}
- internal::copy(formatting.postfix, out);
+ detail::copy(formatting.postfix, out);
return ctx.out();
}
@@ -244,15 +243,20 @@ struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
template <typename T, typename Char> struct is_range {
static FMT_CONSTEXPR_DECL const bool value =
- internal::is_range_<T>::value &&
- !internal::is_like_std_string<T>::value &&
+ detail::is_range_<T>::value && !detail::is_like_std_string<T>::value &&
!std::is_convertible<T, std::basic_string<Char>>::value &&
- !std::is_constructible<internal::std_string_view<Char>, T>::value;
+ !std::is_constructible<detail::std_string_view<Char>, T>::value;
};
-template <typename RangeT, typename Char>
-struct formatter<RangeT, Char,
- enable_if_t<fmt::is_range<RangeT, Char>::value>> {
+template <typename T, typename Char>
+struct formatter<
+ T, Char,
+ enable_if_t<fmt::is_range<T, Char>::value
+// Workaround a bug in MSVC 2017 and earlier.
+#if !FMT_MSC_VER || FMT_MSC_VER >= 1927
+ && has_formatter<detail::value_type<T>, format_context>::value
+#endif
+ >> {
formatting_range<Char> formatting;
template <typename ParseContext>
@@ -261,17 +265,18 @@ struct formatter<RangeT, Char,
}
template <typename FormatContext>
- typename FormatContext::iterator format(const RangeT& values,
- FormatContext& ctx) {
- auto out = internal::copy(formatting.prefix, ctx.out());
- std::size_t i = 0;
- for (auto it = values.begin(), end = values.end(); it != end; ++it) {
+ typename FormatContext::iterator format(const T& values, FormatContext& ctx) {
+ auto out = detail::copy(formatting.prefix, ctx.out());
+ size_t i = 0;
+ auto it = values.begin();
+ auto end = values.end();
+ for (; it != end; ++it) {
if (i > 0) {
if (formatting.add_prepostfix_space) *out++ = ' ';
- out = internal::copy(formatting.delimiter, out);
+ out = detail::copy(formatting.delimiter, out);
}
out = format_to(out,
- internal::format_str_quoted(
+ detail::format_str_quoted(
(formatting.add_delimiter_spaces && i > 0), *it),
*it);
if (++i > formatting.range_length_limit) {
@@ -280,11 +285,11 @@ struct formatter<RangeT, Char,
}
}
if (formatting.add_prepostfix_space) *out++ = ' ';
- return internal::copy(formatting.postfix, out);
+ return detail::copy(formatting.postfix, out);
}
};
-template <typename Char, typename... T> struct tuple_arg_join : internal::view {
+template <typename Char, typename... T> struct tuple_arg_join : detail::view {
const std::tuple<T...>& tuple;
basic_string_view<Char> sep;
@@ -302,14 +307,14 @@ struct formatter<tuple_arg_join<Char, T...>, Char> {
template <typename FormatContext>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx) {
- return format(value, ctx, internal::make_index_sequence<sizeof...(T)>{});
+ return format(value, ctx, detail::make_index_sequence<sizeof...(T)>{});
}
private:
template <typename FormatContext, size_t... N>
typename FormatContext::iterator format(
const tuple_arg_join<Char, T...>& value, FormatContext& ctx,
- internal::index_sequence<N...>) {
+ detail::index_sequence<N...>) {
return format_args(value, ctx, std::get<N>(value.tuple)...);
}
@@ -360,6 +365,29 @@ FMT_CONSTEXPR tuple_arg_join<wchar_t, T...> join(const std::tuple<T...>& tuple,
return {tuple, sep};
}
+/**
+ \rst
+ Returns an object that formats `initializer_list` with elements separated by
+ `sep`.
+
+ **Example**::
+
+ fmt::print("{}", fmt::join({1, 2, 3}, ", "));
+ // Output: "1, 2, 3"
+ \endrst
+ */
+template <typename T>
+arg_join<const T*, const T*, char> join(std::initializer_list<T> list,
+ string_view sep) {
+ return join(std::begin(list), std::end(list), sep);
+}
+
+template <typename T>
+arg_join<const T*, const T*, wchar_t> join(std::initializer_list<T> list,
+ wstring_view sep) {
+ return join(std::begin(list), std::end(list), sep);
+}
+
FMT_END_NAMESPACE
#endif // FMT_RANGES_H_
diff --git a/Externals/fmt/src/format.cc b/Externals/fmt/src/format.cc
index 44ba77f028..7271341664 100755
--- a/Externals/fmt/src/format.cc
+++ b/Externals/fmt/src/format.cc
@@ -8,169 +8,62 @@
#include "fmt/format-inl.h"
FMT_BEGIN_NAMESPACE
-namespace internal {
+namespace detail {
template <typename T>
int format_float(char* buf, std::size_t size, const char* format, int precision,
T value) {
-#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+#ifdef FMT_FUZZ
if (precision > 100000)
throw std::runtime_error(
"fuzz mode - avoid large allocation inside snprintf");
#endif
// Suppress the warning about nonliteral format string.
- auto snprintf_ptr = FMT_SNPRINTF;
+ int (*snprintf_ptr)(char*, size_t, const char*, ...) = FMT_SNPRINTF;
return precision < 0 ? snprintf_ptr(buf, size, format, value)
: snprintf_ptr(buf, size, format, precision, value);
}
-struct sprintf_specs {
- int precision;
- char type;
- bool alt : 1;
+} // namespace detail
- template <typename Char>
- constexpr sprintf_specs(basic_format_specs<Char> specs)
- : precision(specs.precision), type(specs.type), alt(specs.alt) {}
-
- constexpr bool has_precision() const { return precision >= 0; }
-};
-
-// This is deprecated and is kept only to preserve ABI compatibility.
-template <typename Double>
-char* sprintf_format(Double value, internal::buffer<char>& buf,
- sprintf_specs specs) {
- // Buffer capacity must be non-zero, otherwise MSVC's vsnprintf_s will fail.
- FMT_ASSERT(buf.capacity() != 0, "empty buffer");
-
- // Build format string.
- enum { max_format_size = 10 }; // longest format: %#-*.*Lg
- char format[max_format_size];
- char* format_ptr = format;
- *format_ptr++ = '%';
- if (specs.alt || !specs.type) *format_ptr++ = '#';
- if (specs.precision >= 0) {
- *format_ptr++ = '.';
- *format_ptr++ = '*';
- }
- if (std::is_same<Double, long double>::value) *format_ptr++ = 'L';
-
- char type = specs.type;
-
- if (type == '%')
- type = 'f';
- else if (type == 0 || type == 'n')
- type = 'g';
-#if FMT_MSC_VER
- if (type == 'F') {
- // MSVC's printf doesn't support 'F'.
- type = 'f';
- }
-#endif
- *format_ptr++ = type;
- *format_ptr = '\0';
-
- // Format using snprintf.
- char* start = nullptr;
- char* decimal_point_pos = nullptr;
- for (;;) {
- std::size_t buffer_size = buf.capacity();
- start = &buf[0];
- int result =
- format_float(start, buffer_size, format, specs.precision, value);
- if (result >= 0) {
- unsigned n = internal::to_unsigned(result);
- if (n < buf.capacity()) {
- // Find the decimal point.
- auto p = buf.data(), end = p + n;
- if (*p == '+' || *p == '-') ++p;
- if (specs.type != 'a' && specs.type != 'A') {
- while (p < end && *p >= '0' && *p <= '9') ++p;
- if (p < end && *p != 'e' && *p != 'E') {
- decimal_point_pos = p;
- if (!specs.type) {
- // Keep only one trailing zero after the decimal point.
- ++p;
- if (*p == '0') ++p;
- while (p != end && *p >= '1' && *p <= '9') ++p;
- char* where = p;
- while (p != end && *p == '0') ++p;
- if (p == end || *p < '0' || *p > '9') {
- if (p != end) std::memmove(where, p, to_unsigned(end - p));
- n -= static_cast<unsigned>(p - where);
- }
- }
- }
- }
- buf.resize(n);
- break; // The buffer is large enough - continue with formatting.
- }
- buf.reserve(n + 1);
- } else {
- // If result is negative we ask to increase the capacity by at least 1,
- // but as std::vector, the buffer grows exponentially.
- buf.reserve(buf.capacity() + 1);
- }
- }
- return decimal_point_pos;
-}
-} // namespace internal
-
-template FMT_API char* internal::sprintf_format(double, internal::buffer<char>&,
- sprintf_specs);
-template FMT_API char* internal::sprintf_format(long double,
- internal::buffer<char>&,
- sprintf_specs);
-
-template struct FMT_API internal::basic_data<void>;
+template struct FMT_INSTANTIATION_DEF_API detail::basic_data<void>;
// Workaround a bug in MSVC2013 that prevents instantiation of format_float.
-int (*instantiate_format_float)(double, int, internal::float_specs,
- internal::buffer<char>&) =
- internal::format_float;
+int (*instantiate_format_float)(double, int, detail::float_specs,
+ detail::buffer<char>&) = detail::format_float;
#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
-template FMT_API internal::locale_ref::locale_ref(const std::locale& loc);
-template FMT_API std::locale internal::locale_ref::get<std::locale>() const;
+template FMT_API detail::locale_ref::locale_ref(const std::locale& loc);
+template FMT_API std::locale detail::locale_ref::get<std::locale>() const;
#endif
// Explicit instantiations for char.
-template FMT_API std::string internal::grouping_impl<char>(locale_ref);
-template FMT_API char internal::thousands_sep_impl(locale_ref);
-template FMT_API char internal::decimal_point_impl(locale_ref);
+template FMT_API std::string detail::grouping_impl<char>(locale_ref);
+template FMT_API char detail::thousands_sep_impl(locale_ref);
+template FMT_API char detail::decimal_point_impl(locale_ref);
-template FMT_API void internal::buffer<char>::append(const char*, const char*);
+template FMT_API void detail::buffer<char>::append(const char*, const char*);
-template FMT_API void internal::arg_map<format_context>::init(
- const basic_format_args<format_context>& args);
+template FMT_API void detail::vformat_to(
+ detail::buffer<char>&, string_view,
+ basic_format_args<FMT_BUFFER_CONTEXT(char)>, detail::locale_ref);
-template FMT_API std::string internal::vformat<char>(
- string_view, basic_format_args<format_context>);
-
-template FMT_API format_context::iterator internal::vformat_to(
- internal::buffer<char>&, string_view, basic_format_args<format_context>);
-
-template FMT_API int internal::snprintf_float(double, int,
- internal::float_specs,
- internal::buffer<char>&);
-template FMT_API int internal::snprintf_float(long double, int,
- internal::float_specs,
- internal::buffer<char>&);
-template FMT_API int internal::format_float(double, int, internal::float_specs,
- internal::buffer<char>&);
-template FMT_API int internal::format_float(long double, int,
- internal::float_specs,
- internal::buffer<char>&);
+template FMT_API int detail::snprintf_float(double, int, detail::float_specs,
+ detail::buffer<char>&);
+template FMT_API int detail::snprintf_float(long double, int,
+ detail::float_specs,
+ detail::buffer<char>&);
+template FMT_API int detail::format_float(double, int, detail::float_specs,
+ detail::buffer<char>&);
+template FMT_API int detail::format_float(long double, int, detail::float_specs,
+ detail::buffer<char>&);
// Explicit instantiations for wchar_t.
-template FMT_API std::string internal::grouping_impl<wchar_t>(locale_ref);
-template FMT_API wchar_t internal::thousands_sep_impl(locale_ref);
-template FMT_API wchar_t internal::decimal_point_impl(locale_ref);
+template FMT_API std::string detail::grouping_impl<wchar_t>(locale_ref);
+template FMT_API wchar_t detail::thousands_sep_impl(locale_ref);
+template FMT_API wchar_t detail::decimal_point_impl(locale_ref);
-template FMT_API void internal::buffer<wchar_t>::append(const wchar_t*,
- const wchar_t*);
-
-template FMT_API std::wstring internal::vformat<wchar_t>(
- wstring_view, basic_format_args<wformat_context>);
+template FMT_API void detail::buffer<wchar_t>::append(const wchar_t*,
+ const wchar_t*);
FMT_END_NAMESPACE
diff --git a/Externals/fmt/src/posix.cc b/Externals/fmt/src/os.cc
old mode 100755
new mode 100644
similarity index 63%
rename from Externals/fmt/src/posix.cc
rename to Externals/fmt/src/os.cc
index 3db72b76e2..a07e782441
--- a/Externals/fmt/src/posix.cc
+++ b/Externals/fmt/src/os.cc
@@ -1,4 +1,4 @@
-// A C++ interface to POSIX functions.
+// Formatting library for C++ - optional OS-specific functionality
//
// Copyright (c) 2012 - 2016, Victor Zverovich
// All rights reserved.
@@ -10,39 +10,43 @@
# define _CRT_SECURE_NO_WARNINGS
#endif
-#include "fmt/posix.h"
+#include "fmt/os.h"
#include <climits>
#if FMT_USE_FCNTL
-#include <sys/stat.h>
-#include <sys/types.h>
+# include <sys/stat.h>
+# include <sys/types.h>
-#ifndef _WIN32
-# include <unistd.h>
-#else
-# ifndef WIN32_LEAN_AND_MEAN
-# define WIN32_LEAN_AND_MEAN
-# endif
-# include <io.h>
+# ifndef _WIN32
+# include <unistd.h>
+# else
+# ifndef WIN32_LEAN_AND_MEAN
+# define WIN32_LEAN_AND_MEAN
+# endif
+# include <io.h>
+# include <windows.h>
+
+# define O_CREAT _O_CREAT
+# define O_TRUNC _O_TRUNC
+
+# ifndef S_IRUSR
+# define S_IRUSR _S_IREAD
+# endif
+
+# ifndef S_IWUSR
+# define S_IWUSR _S_IWRITE
+# endif
+
+# ifdef __MINGW32__
+# define _SH_DENYNO 0x40
+# endif
+# endif // _WIN32
+#endif // FMT_USE_FCNTL
+
+#ifdef _WIN32
# include <windows.h>
-
-# define O_CREAT _O_CREAT
-# define O_TRUNC _O_TRUNC
-
-# ifndef S_IRUSR
-# define S_IRUSR _S_IREAD
-# endif
-
-# ifndef S_IWUSR
-# define S_IWUSR _S_IWRITE
-# endif
-
-# ifdef __MINGW32__
-# define _SH_DENYNO 0x40
-# endif
-#endif // _WIN32
-#endif // FMT_USE_FCNTL
+#endif
#ifdef fileno
# undef fileno
@@ -58,7 +62,7 @@ using RWResult = int;
inline unsigned convert_rwcount(std::size_t count) {
return count <= UINT_MAX ? static_cast<unsigned>(count) : UINT_MAX;
}
-#else
+#elif FMT_USE_FCNTL
// Return type of read and write functions.
using RWResult = ssize_t;
@@ -68,6 +72,79 @@ inline std::size_t convert_rwcount(std::size_t count) { return count; }
FMT_BEGIN_NAMESPACE
+#ifdef _WIN32
+detail::utf16_to_utf8::utf16_to_utf8(wstring_view s) {
+ if (int error_code = convert(s)) {
+ FMT_THROW(windows_error(error_code,
+ "cannot convert string from UTF-16 to UTF-8"));
+ }
+}
+
+int detail::utf16_to_utf8::convert(wstring_view s) {
+ if (s.size() > INT_MAX) return ERROR_INVALID_PARAMETER;
+ int s_size = static_cast<int>(s.size());
+ if (s_size == 0) {
+ // WideCharToMultiByte does not support zero length, handle separately.
+ buffer_.resize(1);
+ buffer_[0] = 0;
+ return 0;
+ }
+
+ int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, nullptr, 0,
+ nullptr, nullptr);
+ if (length == 0) return GetLastError();
+ buffer_.resize(length + 1);
+ length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, &buffer_[0],
+ length, nullptr, nullptr);
+ if (length == 0) return GetLastError();
+ buffer_[length] = 0;
+ return 0;
+}
+
+void windows_error::init(int err_code, string_view format_str,
+ format_args args) {
+ error_code_ = err_code;
+ memory_buffer buffer;
+ detail::format_windows_error(buffer, err_code, vformat(format_str, args));
+ std::runtime_error& base = *this;
+ base = std::runtime_error(to_string(buffer));
+}
+
+void detail::format_windows_error(detail::buffer<char>& out, int error_code,
+ string_view message) FMT_NOEXCEPT {
+ FMT_TRY {
+ wmemory_buffer buf;
+ buf.resize(inline_buffer_size);
+ for (;;) {
+ wchar_t* system_message = &buf[0];
+ int result = FormatMessageW(
+ FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, nullptr,
+ error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), system_message,
+ static_cast<uint32_t>(buf.size()), nullptr);
+ if (result != 0) {
+ utf16_to_utf8 utf8_message;
+ if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
+ format_to(buffer_appender<char>(out), "{}: {}", message,
+ utf8_message);
+ return;
+ }
+ break;
+ }
+ if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ break; // Can't get error message, report error code instead.
+ buf.resize(buf.size() * 2);
+ }
+ }
+ FMT_CATCH(...) {}
+ format_error_code(out, error_code, message);
+}
+
+void report_windows_error(int error_code,
+ fmt::string_view message) FMT_NOEXCEPT {
+ report_error(detail::format_windows_error, error_code, message);
+}
+#endif // _WIN32
+
buffered_file::~buffered_file() FMT_NOEXCEPT {
if (file_ && FMT_SYSTEM(fclose(file_)) != 0)
report_system_error(errno, "cannot close file");
@@ -99,12 +176,12 @@ int buffered_file::fileno() const {
#if FMT_USE_FCNTL
file::file(cstring_view path, int oflag) {
int mode = S_IRUSR | S_IWUSR;
-#if defined(_WIN32) && !defined(__MINGW32__)
+# if defined(_WIN32) && !defined(__MINGW32__)
fd_ = -1;
FMT_POSIX_CALL(sopen_s(&fd_, path.c_str(), oflag, _SH_DENYNO, mode));
-#else
+# else
FMT_RETRY(fd_, FMT_POSIX_CALL(open(path.c_str(), oflag, mode)));
-#endif
+# endif
if (fd_ == -1)
FMT_THROW(system_error(errno, "cannot open file {}", path.c_str()));
}
@@ -126,7 +203,7 @@ void file::close() {
}
long long file::size() const {
-#ifdef _WIN32
+# ifdef _WIN32
// Use GetFileSize instead of GetFileSizeEx for the case when _WIN32_WINNT
// is less than 0x0500 as is the case with some default MinGW builds.
// Both functions support large file sizes.
@@ -140,7 +217,7 @@ long long file::size() const {
}
unsigned long long long_size = size_upper;
return (long_size << sizeof(DWORD) * CHAR_BIT) | size_lower;
-#else
+# else
using Stat = struct stat;
Stat file_stat = Stat();
if (FMT_POSIX_CALL(fstat(fd_, &file_stat)) == -1)
@@ -148,21 +225,21 @@ long long file::size() const {
static_assert(sizeof(long long) >= sizeof(file_stat.st_size),
"return type of file::size is not large enough");
return file_stat.st_size;
-#endif
+# endif
}
std::size_t file::read(void* buffer, std::size_t count) {
RWResult result = 0;
FMT_RETRY(result, FMT_POSIX_CALL(read(fd_, buffer, convert_rwcount(count))));
if (result < 0) FMT_THROW(system_error(errno, "cannot read from file"));
- return internal::to_unsigned(result);
+ return detail::to_unsigned(result);
}
std::size_t file::write(const void* buffer, std::size_t count) {
RWResult result = 0;
FMT_RETRY(result, FMT_POSIX_CALL(write(fd_, buffer, convert_rwcount(count))));
if (result < 0) FMT_THROW(system_error(errno, "cannot write to file"));
- return internal::to_unsigned(result);
+ return detail::to_unsigned(result);
}
file file::dup(int fd) {
@@ -195,15 +272,15 @@ void file::pipe(file& read_end, file& write_end) {
read_end.close();
write_end.close();
int fds[2] = {};
-#ifdef _WIN32
+# ifdef _WIN32
// Make the default pipe capacity same as on Linux 2.6.11+.
enum { DEFAULT_CAPACITY = 65536 };
int result = FMT_POSIX_CALL(pipe(fds, DEFAULT_CAPACITY, _O_BINARY));
-#else
+# else
// Don't retry as the pipe function doesn't return EINTR.
// http://pubs.opengroup.org/onlinepubs/009696799/functions/pipe.html
int result = FMT_POSIX_CALL(pipe(fds));
-#endif
+# endif
if (result != 0) FMT_THROW(system_error(errno, "cannot create pipe"));
// The following assignments don't throw because read_fd and write_fd
// are closed.
@@ -212,8 +289,12 @@ void file::pipe(file& read_end, file& write_end) {
}
buffered_file file::fdopen(const char* mode) {
- // Don't retry as fdopen doesn't return EINTR.
+// Don't retry as fdopen doesn't return EINTR.
+# if defined(__MINGW32__) && defined(_POSIX_)
+ FILE* f = ::fdopen(fd_, mode);
+# else
FILE* f = FMT_POSIX_CALL(fdopen(fd_, mode));
+# endif
if (!f)
FMT_THROW(
system_error(errno, "cannot associate stream with file descriptor"));
@@ -223,15 +304,19 @@ buffered_file file::fdopen(const char* mode) {
}
long getpagesize() {
-#ifdef _WIN32
+# ifdef _WIN32
SYSTEM_INFO si;
GetSystemInfo(&si);
return si.dwPageSize;
-#else
+# else
long size = FMT_POSIX_CALL(sysconf(_SC_PAGESIZE));
if (size < 0) FMT_THROW(system_error(errno, "cannot get memory page size"));
return size;
-#endif
+# endif
+}
+
+void ostream::grow(size_t) {
+ if (this->size() == this->capacity()) flush();
}
#endif // FMT_USE_FCNTL
FMT_END_NAMESPACE
diff --git a/Externals/fmt/support/README b/Externals/fmt/support/README
index e7fbacc733..468f5485d9 100755
--- a/Externals/fmt/support/README
+++ b/Externals/fmt/support/README
@@ -2,5 +2,3 @@ This directory contains build support files such as
* CMake modules
* Build scripts
-* qmake (static build with dynamic libc only)
-
diff --git a/Externals/fmt/support/Vagrantfile b/Externals/fmt/support/Vagrantfile
index 24f166a109..f6b5f93662 100644
--- a/Externals/fmt/support/Vagrantfile
+++ b/Externals/fmt/support/Vagrantfile
@@ -4,6 +4,7 @@
# A vagrant config for testing against gcc-4.8.
Vagrant.configure("2") do |config|
config.vm.box = "ubuntu/xenial64"
+ config.disksize.size = '15GB'
config.vm.provider "virtualbox" do |vb|
vb.memory = "4096"
diff --git a/Externals/fmt/support/cmake/JoinPaths.cmake b/Externals/fmt/support/cmake/JoinPaths.cmake
new file mode 100644
index 0000000000..32d6d6685c
--- /dev/null
+++ b/Externals/fmt/support/cmake/JoinPaths.cmake
@@ -0,0 +1,26 @@
+# This module provides function for joining paths
+# known from from most languages
+#
+# Original license:
+# SPDX-License-Identifier: (MIT OR CC0-1.0)
+# Explicit permission given to distribute this module under
+# the terms of the project as described in /LICENSE.rst.
+# Copyright 2020 Jan Tojnar
+# https://github.com/jtojnar/cmake-snips
+#
+# Modelled after Python’s os.path.join
+# https://docs.python.org/3.7/library/os.path.html#os.path.join
+# Windows not supported
+function(join_paths joined_path first_path_segment)
+ set(temp_path "${first_path_segment}")
+ foreach(current_segment IN LISTS ARGN)
+ if(NOT ("${current_segment}" STREQUAL ""))
+ if(IS_ABSOLUTE "${current_segment}")
+ set(temp_path "${current_segment}")
+ else()
+ set(temp_path "${temp_path}/${current_segment}")
+ endif()
+ endif()
+ endforeach()
+ set(${joined_path} "${temp_path}" PARENT_SCOPE)
+endfunction()
diff --git a/Externals/fmt/support/cmake/cxx14.cmake b/Externals/fmt/support/cmake/cxx14.cmake
index 032fcb270e..16ff57541b 100755
--- a/Externals/fmt/support/cmake/cxx14.cmake
+++ b/Externals/fmt/support/cmake/cxx14.cmake
@@ -48,17 +48,6 @@ endif ()
set(CMAKE_REQUIRED_FLAGS ${CXX_STANDARD_FLAG})
-# Check if variadic templates are working and not affected by GCC bug 39653:
-# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39653
-# Can be removed once gcc 4.4 support is dropped.
-check_cxx_source_compiles("
- template <class T, class ...Types>
- struct S { typedef typename S<Types...>::type type; };
- int main() {}" SUPPORTS_VARIADIC_TEMPLATES)
-if (NOT SUPPORTS_VARIADIC_TEMPLATES)
- set (SUPPORTS_VARIADIC_TEMPLATES OFF)
-endif ()
-
# Check if user-defined literals are available
check_cxx_source_compiles("
void operator\"\" _udl(long double);
diff --git a/Externals/fmt/support/cmake/fmt.pc.in b/Externals/fmt/support/cmake/fmt.pc.in
index e935dc78e1..29976a8af0 100755
--- a/Externals/fmt/support/cmake/fmt.pc.in
+++ b/Externals/fmt/support/cmake/fmt.pc.in
@@ -1,11 +1,11 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=@CMAKE_INSTALL_PREFIX@
-libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
-includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
+libdir=@libdir_for_pc_file@
+includedir=@includedir_for_pc_file@
Name: fmt
Description: A modern formatting library
Version: @FMT_VERSION@
-Libs: -L${libdir} -lfmt
+Libs: -L${libdir} -l@FMT_LIB_NAME@
Cflags: -I${includedir}
diff --git a/Externals/fmt/support/fmt.pro b/Externals/fmt/support/fmt.pro
deleted file mode 100755
index c555d0b4ae..0000000000
--- a/Externals/fmt/support/fmt.pro
+++ /dev/null
@@ -1,27 +0,0 @@
-# Staticlib configuration for qmake builds
-# For some reason qmake 3.1 fails to identify source dependencies and excludes format.cc and printf.cc
-# from compilation so it _MUST_ be called as qmake -nodepend
-# A workaround is implemented below: a custom compiler is defined which does not track dependencies
-
-TEMPLATE = lib
-
-TARGET = fmt
-
-QMAKE_EXT_CPP = .cc
-
-CONFIG = staticlib warn_on c++11
-
-FMT_SOURCES = \
- ../src/format.cc \
- ../src/posix.cc
-
-fmt.name = libfmt
-fmt.input = FMT_SOURCES
-fmt.output = ${QMAKE_FILE_BASE}$$QMAKE_EXT_OBJ
-fmt.clean = ${QMAKE_FILE_BASE}$$QMAKE_EXT_OBJ
-fmt.depends = ${QMAKE_FILE_IN}
-# QMAKE_RUN_CXX will not be expanded
-fmt.commands = $$QMAKE_CXX -c $$QMAKE_CXXFLAGS $$QMAKE_CXXFLAGS_WARN_ON $$QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO $$QMAKE_CXXFLAGS_CXX11 ${QMAKE_FILE_IN}
-fmt.variable_out = OBJECTS
-fmt.CONFIG = no_dependencies no_link
-QMAKE_EXTRA_COMPILERS += fmt
diff --git a/Externals/fmt/support/manage.py b/Externals/fmt/support/manage.py
index e39beff165..9f27066940 100755
--- a/Externals/fmt/support/manage.py
+++ b/Externals/fmt/support/manage.py
@@ -137,15 +137,40 @@ def update_site(env):
if not os.path.exists(contents):
os.rename(os.path.join(target_doc_dir, 'index.rst'), contents)
# Fix issues in reference.rst/api.rst.
- for filename in ['reference.rst', 'api.rst']:
+ for filename in ['reference.rst', 'api.rst', 'index.rst']:
pattern = re.compile('doxygenfunction.. (bin|oct|hexu|hex)$', re.M)
with rewrite(os.path.join(target_doc_dir, filename)) as b:
b.data = b.data.replace('std::ostream &', 'std::ostream&')
b.data = re.sub(pattern, r'doxygenfunction:: \1(int)', b.data)
b.data = b.data.replace('std::FILE*', 'std::FILE *')
b.data = b.data.replace('unsigned int', 'unsigned')
- b.data = b.data.replace('operator""_', 'operator"" _')
- b.data = b.data.replace(', size_t', ', std::size_t')
+ #b.data = b.data.replace('operator""_', 'operator"" _')
+ b.data = b.data.replace(
+ 'format_to_n(OutputIt, size_t, string_view, Args&&',
+ 'format_to_n(OutputIt, size_t, const S&, const Args&')
+ b.data = b.data.replace(
+ 'format_to_n(OutputIt, std::size_t, string_view, Args&&',
+ 'format_to_n(OutputIt, std::size_t, const S&, const Args&')
+ if version == ('3.0.2'):
+ b.data = b.data.replace(
+ 'fprintf(std::ostream&', 'fprintf(std::ostream &')
+ if version == ('5.3.0'):
+ b.data = b.data.replace(
+ 'format_to(OutputIt, const S&, const Args&...)',
+ 'format_to(OutputIt, const S &, const Args &...)')
+ if version.startswith('5.') or version.startswith('6.'):
+ b.data = b.data.replace(', size_t', ', std::size_t')
+ if version.startswith('7.'):
+ b.data = b.data.replace(', std::size_t', ', size_t')
+ b.data = b.data.replace('join(It, It', 'join(It, Sentinel')
+ b.data = b.data.replace('aa long', 'a long')
+ b.data = b.data.replace('serveral', 'several')
+ if version.startswith('6.2.'):
+ b.data = b.data.replace(
+ 'vformat(const S&, basic_format_args<' +
+ 'buffer_context<Char>>)',
+ 'vformat(const S&, basic_format_args<' +
+ 'buffer_context<type_identity_t<Char>>>)')
# Fix a broken link in index.rst.
index = os.path.join(target_doc_dir, 'index.rst')
with rewrite(index) as b:
diff --git a/Externals/fmt/support/update-coverity-branch.py b/Externals/fmt/support/update-coverity-branch.py
deleted file mode 100755
index 519f5d00d2..0000000000
--- a/Externals/fmt/support/update-coverity-branch.py
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env python
-# Update the coverity branch from the master branch.
-# It is not done automatically because Coverity Scan limits
-# the number of submissions per day.
-
-from __future__ import print_function
-import shutil, tempfile
-from subprocess import check_output, STDOUT
-
-class Git:
- def __init__(self, dir):
- self.dir = dir
-
- def __call__(self, *args):
- output = check_output(['git'] + list(args), cwd=self.dir, stderr=STDOUT)
- print(output)
- return output
-
-dir = tempfile.mkdtemp()
-try:
- git = Git(dir)
- git('clone', '-b', 'coverity', 'git@github.com:fmtlib/fmt.git', dir)
- output = git('merge', '-X', 'theirs', '--no-commit', 'origin/master')
- if 'Fast-forward' not in output:
- git('reset', 'HEAD', '.travis.yml')
- git('checkout', '--', '.travis.yml')
- git('commit', '-m', 'Update coverity branch')
- git('push')
-finally:
- shutil.rmtree(dir)