From 41c04ded937ff6423d5549afd7f5e8de211a9e31 Mon Sep 17 00:00:00 2001
From: mitaclaw <140017135+mitaclaw@users.noreply.github.com>
Date: Sat, 28 Sep 2024 22:26:43 -0700
Subject: [PATCH] Modernize `std::lower_bound`/`upper_bound` with ranges and
 projections

---
 Source/Core/Common/MemArenaWin.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/Source/Core/Common/MemArenaWin.cpp b/Source/Core/Common/MemArenaWin.cpp
index a991687d91..7907979775 100644
--- a/Source/Core/Common/MemArenaWin.cpp
+++ b/Source/Core/Common/MemArenaWin.cpp
@@ -220,9 +220,7 @@ WindowsMemoryRegion* MemArena::EnsureSplitRegionForMapping(void* start_address,
   }
 
   // find closest region that is <= the given address by using upper bound and decrementing
-  auto it = std::upper_bound(
-      regions.begin(), regions.end(), address,
-      [](u8* addr, const WindowsMemoryRegion& region) { return addr < region.m_start; });
+  auto it = std::ranges::upper_bound(regions, address, {}, &WindowsMemoryRegion::m_start);
   if (it == regions.begin())
   {
     // this should never happen, implies that the given address is before the start of the
@@ -363,9 +361,7 @@ bool MemArena::JoinRegionsAfterUnmap(void* start_address, size_t size)
   }
 
   // there should be a mapping that matches the request exactly, find it
-  auto it = std::lower_bound(
-      regions.begin(), regions.end(), address,
-      [](const WindowsMemoryRegion& region, u8* addr) { return region.m_start < addr; });
+  auto it = std::ranges::lower_bound(regions, address, {}, &WindowsMemoryRegion::m_start);
   if (it == regions.end() || it->m_start != address || it->m_size != size)
   {
     // didn't find it, we were given bogus input