Modernize `std::sort` with ranges and projections

In PPCTables.cpp, the code is currently unused so I was unable to test it.

In CustomPipeline.cpp, a pointer to member function cannot be used due to 16.4.5.2.1 of the C++ Standard regarding "addressable functions". https://eel.is/c++draft/namespace.std#6

In Fs.cpp and DirectoryBlob.cpp, these examples used projections in a previous iteration of this commit, but no longer do. Still, they remain in this commit because the PR they would actually belong to is already merged.

3 files changed, 9 insertions, 13 deletions

diff --git a/Source/Core/DiscIO/DirectoryBlob.cpp b/Source/Core/DiscIO/DirectoryBlob.cpp
index 5d080afe1d..442c8ae851 100644
--- a/Source/Core/DiscIO/DirectoryBlob.cpp
+++ b/Source/Core/DiscIO/DirectoryBlob.cpp
@@ -1192,15 +1192,13 @@ void DirectoryBlobPartition::WriteDirectory(std::vector<u8>* fst_data,
   std::vector<FSTBuilderNode>& sorted_entries = *parent_entries;
 
   // Sort for determinism
-  std::sort(sorted_entries.begin(), sorted_entries.end(),
-            [](const FSTBuilderNode& one, const FSTBuilderNode& two) {
-              std::string one_upper = one.m_filename;
-              std::string two_upper = two.m_filename;
-              Common::ToUpper(&one_upper);
-              Common::ToUpper(&two_upper);
-              return one_upper == two_upper ? one.m_filename < two.m_filename :
-                                              one_upper < two_upper;
-            });
+  std::ranges::sort(sorted_entries, [](const FSTBuilderNode& one, const FSTBuilderNode& two) {
+    std::string one_upper = one.m_filename;
+    std::string two_upper = two.m_filename;
+    Common::ToUpper(&one_upper);
+    Common::ToUpper(&two_upper);
+    return one_upper == two_upper ? one.m_filename < two.m_filename : one_upper < two_upper;
+  });
 
   for (FSTBuilderNode& entry : sorted_entries)
   {
diff --git a/Source/Core/DiscIO/VolumeVerifier.cpp b/Source/Core/DiscIO/VolumeVerifier.cpp
index 18ef37102e..dc67760ce2 100644
--- a/Source/Core/DiscIO/VolumeVerifier.cpp
+++ b/Source/Core/DiscIO/VolumeVerifier.cpp
@@ -1053,8 +1053,7 @@ void VolumeVerifier::SetUpHashing()
     m_scrubber.SetupScrub(m_volume);
   }
 
-  std::sort(m_groups.begin(), m_groups.end(),
-            [](const GroupToVerify& a, const GroupToVerify& b) { return a.offset < b.offset; });
+  std::ranges::sort(m_groups, {}, &GroupToVerify::offset);
 
   if (m_hashes_to_calculate.crc32)
     m_crc32_context = Common::StartCRC32();
diff --git a/Source/Core/DiscIO/WIABlob.cpp b/Source/Core/DiscIO/WIABlob.cpp
index c59802c947..3f91a606aa 100644
--- a/Source/Core/DiscIO/WIABlob.cpp
+++ b/Source/Core/DiscIO/WIABlob.cpp
@@ -941,8 +941,7 @@ ConversionResultCode WIARVZFileReader<RVZ>::SetUpDataEntriesForWriting(
   if (volume && volume->HasWiiHashes() && volume->HasWiiEncryption())
     partitions = volume->GetPartitions();
 
-  std::sort(partitions.begin(), partitions.end(),
-            [](const Partition& a, const Partition& b) { return a.offset < b.offset; });
+  std::ranges::sort(partitions, {}, &Partition::offset);
 
   *total_groups = 0;