From c0af06a69141b251f84f75588c18013889a99f76 Mon Sep 17 00:00:00 2001
From: Robert Schumacher <roschuma@microsoft.com>
Date: Mon, 24 Jul 2017 13:34:18 -0700
Subject: [PATCH] [vcpkg] Revert #1450, pending bugfix.

---
 toolsrc/src/vcpkg_Strings.cpp | 51 ++++++++---------------------------
 1 file changed, 11 insertions(+), 40 deletions(-)

diff --git a/toolsrc/src/vcpkg_Strings.cpp b/toolsrc/src/vcpkg_Strings.cpp
index 36d017f54..aafed5fd3 100644
--- a/toolsrc/src/vcpkg_Strings.cpp
+++ b/toolsrc/src/vcpkg_Strings.cpp
@@ -11,63 +11,34 @@ namespace vcpkg::Strings::details
     // Avoids C4244 warnings because of char<->int conversion that occur when using std::tolower()
     static char tolower_char(const char c) { return static_cast<char>(std::tolower(c)); }
 
-#if defined(_WIN32)
     static _locale_t& c_locale()
     {
         static _locale_t c_locale_impl = _create_locale(LC_ALL, "C");
         return c_locale_impl;
     }
-    static int plat_vsnprintf(_Out_writes_z_(bufsz) char* const buffer,
-                              _In_ size_t const bufsz,
-                              _In_z_ _Printf_format_string_params_(1) char const* const fmtstr,
-                              va_list args)
-    {
-        return _vsnprintf_s_l(buffer, bufsz, bufsz, fmtstr, c_locale(), args);
-    }
-    static int plat_vswprintf(_Out_writes_z_(bufsz) wchar_t* const buffer,
-                              _In_ size_t const bufsz,
-                              _In_z_ _Printf_format_string_params_(1) wchar_t const* const fmtstr,
-                              va_list args)
-    {
-        return _vsnwprintf_s_l(buffer, bufsz, bufsz, fmtstr, c_locale(), args);
-    }
-#else
-    static int plat_vsnprintf(char* buffer, size_t bufsz, const char* fmtstr, va_list args)
-    {
-        return vsnprintf(buffer, bufsz, fmtstr, args);
-    }
-    static int plat_vswprintf(char* buffer, size_t bufsz, const char* fmtstr, va_list args)
-    {
-        return vswprintf(buffer, bufsz, fmtstr, args);
-    }
-#endif
 
     std::string format_internal(const char* fmtstr, ...)
     {
-        va_list args;
-        va_start(args, fmtstr);
-
-        int sz = plat_vsnprintf(nullptr, 0, fmtstr, args);
+        va_list lst;
+        va_start(lst, fmtstr);
 
+        const int sz = _vscprintf_l(fmtstr, c_locale(), lst);
         std::string output(sz, '\0');
-
-        plat_vsnprintf(&output.at(0), output.size() + 1, fmtstr, args);
-        va_end(args);
+        _vsnprintf_s_l(&output[0], output.size() + 1, output.size() + 1, fmtstr, c_locale(), lst);
+        va_end(lst);
 
         return output;
     }
 
     std::wstring wformat_internal(const wchar_t* fmtstr, ...)
     {
-        va_list args;
-        va_start(args, fmtstr);
+        va_list lst;
+        va_start(lst, fmtstr);
 
-        int sz = plat_vswprintf(nullptr, 0, fmtstr, args);
-
-        std::wstring output(sz, L'\0');
-
-        plat_vswprintf(&output.at(0), output.size() + 1, fmtstr, args);
-        va_end(args);
+        const int sz = _vscwprintf_l(fmtstr, c_locale(), lst);
+        std::wstring output(sz, '\0');
+        _vsnwprintf_s_l(&output[0], output.size() + 1, output.size() + 1, fmtstr, c_locale(), lst);
+        va_end(lst);
 
         return output;
     }