21 files changed, 130 insertions, 128 deletions

diff --git a/src/core/file_sys/card_image.cpp b/src/core/file_sys/card_image.cpp
index 8218893b2..edfc1bbd4 100644
--- a/src/core/file_sys/card_image.cpp
+++ b/src/core/file_sys/card_image.cpp
@@ -41,13 +41,14 @@ XCI::XCI(VirtualFile file_) : file(std::move(file_)), partitions(0x4) {
 
     for (XCIPartition partition :
          {XCIPartition::Update, XCIPartition::Normal, XCIPartition::Secure, XCIPartition::Logo}) {
-        auto raw = main_hfs.GetFile(partition_names[static_cast<size_t>(partition)]);
+        auto raw = main_hfs.GetFile(partition_names[static_cast<std::size_t>(partition)]);
         if (raw != nullptr)
-            partitions[static_cast<size_t>(partition)] = std::make_shared<PartitionFilesystem>(raw);
+            partitions[static_cast<std::size_t>(partition)] =
+                std::make_shared<PartitionFilesystem>(raw);
     }
 
     secure_partition = std::make_shared<NSP>(
-        main_hfs.GetFile(partition_names[static_cast<size_t>(XCIPartition::Secure)]));
+        main_hfs.GetFile(partition_names[static_cast<std::size_t>(XCIPartition::Secure)]));
 
     const auto secure_ncas = secure_partition->GetNCAsCollapsed();
     std::copy(secure_ncas.begin(), secure_ncas.end(), std::back_inserter(ncas));
@@ -92,7 +93,7 @@ Loader::ResultStatus XCI::GetProgramNCAStatus() const {
 }
 
 VirtualDir XCI::GetPartition(XCIPartition partition) const {
-    return partitions[static_cast<size_t>(partition)];
+    return partitions[static_cast<std::size_t>(partition)];
 }
 
 std::shared_ptr<NSP> XCI::GetSecurePartitionNSP() const {
@@ -168,11 +169,11 @@ bool XCI::ReplaceFileWithSubdirectory(VirtualFile file, VirtualDir dir) {
 }
 
 Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
-    if (partitions[static_cast<size_t>(part)] == nullptr) {
+    if (partitions[static_cast<std::size_t>(part)] == nullptr) {
         return Loader::ResultStatus::ErrorXCIMissingPartition;
     }
 
-    for (const VirtualFile& file : partitions[static_cast<size_t>(part)]->GetFiles()) {
+    for (const VirtualFile& file : partitions[static_cast<std::size_t>(part)]->GetFiles()) {
         if (file->GetExtension() != "nca")
             continue;
         auto nca = std::make_shared<NCA>(file);
@@ -187,7 +188,7 @@ Loader::ResultStatus XCI::AddNCAFromPartition(XCIPartition part) {
         } else {
             const u16 error_id = static_cast<u16>(nca->GetStatus());
             LOG_CRITICAL(Loader, "Could not load NCA {}/{}, failed with error code {:04X} ({})",
-                         partition_names[static_cast<size_t>(part)], nca->GetName(), error_id,
+                         partition_names[static_cast<std::size_t>(part)], nca->GetName(), error_id,
                          nca->GetStatus());
         }
     }
diff --git a/src/core/file_sys/content_archive.cpp b/src/core/file_sys/content_archive.cpp
index 79bfb6fec..45fc0b574 100644
--- a/src/core/file_sys/content_archive.cpp
+++ b/src/core/file_sys/content_archive.cpp
@@ -298,11 +298,11 @@ NCA::NCA(VirtualFile file_, VirtualFile bktr_base_romfs_, u64 bktr_base_ivfc_off
         auto section = sections[i];
 
         if (section.raw.header.filesystem_type == NCASectionFilesystemType::ROMFS) {
-            const size_t base_offset =
+            const std::size_t base_offset =
                 header.section_tables[i].media_offset * MEDIA_OFFSET_MULTIPLIER;
             ivfc_offset = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].offset;
-            const size_t romfs_offset = base_offset + ivfc_offset;
-            const size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
+            const std::size_t romfs_offset = base_offset + ivfc_offset;
+            const std::size_t romfs_size = section.romfs.ivfc.levels[IVFC_MAX_LEVEL - 1].size;
             auto raw = std::make_shared<OffsetVfsFile>(file, romfs_size, romfs_offset);
             auto dec = Decrypt(section, raw, romfs_offset);
 
diff --git a/src/core/file_sys/directory.h b/src/core/file_sys/directory.h
index 3759e743a..12bb90ec8 100644
--- a/src/core/file_sys/directory.h
+++ b/src/core/file_sys/directory.h
@@ -25,7 +25,7 @@ enum EntryType : u8 {
 struct Entry {
     Entry(std::string_view view, EntryType entry_type, u64 entry_size)
         : type{entry_type}, file_size{entry_size} {
-        const size_t copy_size = view.copy(filename, std::size(filename) - 1);
+        const std::size_t copy_size = view.copy(filename, std::size(filename) - 1);
         filename[copy_size] = '\0';
     }
 
diff --git a/src/core/file_sys/nca_metadata.cpp b/src/core/file_sys/nca_metadata.cpp
index cdfbc5aaf..479916b69 100644
--- a/src/core/file_sys/nca_metadata.cpp
+++ b/src/core/file_sys/nca_metadata.cpp
@@ -11,11 +11,11 @@
 namespace FileSys {
 
 bool operator>=(TitleType lhs, TitleType rhs) {
-    return static_cast<size_t>(lhs) >= static_cast<size_t>(rhs);
+    return static_cast<std::size_t>(lhs) >= static_cast<std::size_t>(rhs);
 }
 
 bool operator<=(TitleType lhs, TitleType rhs) {
-    return static_cast<size_t>(lhs) <= static_cast<size_t>(rhs);
+    return static_cast<std::size_t>(lhs) <= static_cast<std::size_t>(rhs);
 }
 
 CNMT::CNMT(VirtualFile file) {
diff --git a/src/core/file_sys/nca_patch.cpp b/src/core/file_sys/nca_patch.cpp
index 6fc5bd7d8..0090cc6c4 100644
--- a/src/core/file_sys/nca_patch.cpp
+++ b/src/core/file_sys/nca_patch.cpp
@@ -22,11 +22,11 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
       base_romfs(std::move(base_romfs_)), bktr_romfs(std::move(bktr_romfs_)),
       encrypted(is_encrypted_), key(key_), base_offset(base_offset_), ivfc_offset(ivfc_offset_),
       section_ctr(section_ctr_) {
-    for (size_t i = 0; i < relocation.number_buckets - 1; ++i) {
+    for (std::size_t i = 0; i < relocation.number_buckets - 1; ++i) {
         relocation_buckets[i].entries.push_back({relocation.base_offsets[i + 1], 0, 0});
     }
 
-    for (size_t i = 0; i < subsection.number_buckets - 1; ++i) {
+    for (std::size_t i = 0; i < subsection.number_buckets - 1; ++i) {
         subsection_buckets[i].entries.push_back({subsection_buckets[i + 1].entries[0].address_patch,
                                                  {0},
                                                  subsection_buckets[i + 1].entries[0].ctr});
@@ -37,7 +37,7 @@ BKTR::BKTR(VirtualFile base_romfs_, VirtualFile bktr_romfs_, RelocationBlock rel
 
 BKTR::~BKTR() = default;
 
-size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
+std::size_t BKTR::Read(u8* data, std::size_t length, std::size_t offset) const {
     // Read out of bounds.
     if (offset >= relocation.size)
         return 0;
@@ -69,14 +69,14 @@ size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
     std::vector<u8> iv(16);
     auto subsection_ctr = subsection.ctr;
     auto offset_iv = section_offset + base_offset;
-    for (size_t i = 0; i < section_ctr.size(); ++i)
+    for (std::size_t i = 0; i < section_ctr.size(); ++i)
         iv[i] = section_ctr[0x8 - i - 1];
     offset_iv >>= 4;
-    for (size_t i = 0; i < sizeof(u64); ++i) {
+    for (std::size_t i = 0; i < sizeof(u64); ++i) {
         iv[0xF - i] = static_cast<u8>(offset_iv & 0xFF);
         offset_iv >>= 8;
     }
-    for (size_t i = 0; i < sizeof(u32); ++i) {
+    for (std::size_t i = 0; i < sizeof(u32); ++i) {
         iv[0x7 - i] = static_cast<u8>(subsection_ctr & 0xFF);
         subsection_ctr >>= 8;
     }
@@ -110,8 +110,8 @@ size_t BKTR::Read(u8* data, size_t length, size_t offset) const {
 }
 
 template <bool Subsection, typename BlockType, typename BucketType>
-std::pair<size_t, size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
-                                                  BucketType buckets) const {
+std::pair<std::size_t, std::size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
+                                                            BucketType buckets) const {
     if constexpr (Subsection) {
         const auto last_bucket = buckets[block.number_buckets - 1];
         if (offset >= last_bucket.entries[last_bucket.number_entries].address_patch)
@@ -120,18 +120,18 @@ std::pair<size_t, size_t> BKTR::SearchBucketEntry(u64 offset, BlockType block,
         ASSERT_MSG(offset <= block.size, "Offset is out of bounds in BKTR relocation block.");
     }
 
-    size_t bucket_id = std::count_if(block.base_offsets.begin() + 1,
-                                     block.base_offsets.begin() + block.number_buckets,
-                                     [&offset](u64 base_offset) { return base_offset <= offset; });
+    std::size_t bucket_id = std::count_if(
+        block.base_offsets.begin() + 1, block.base_offsets.begin() + block.number_buckets,
+        [&offset](u64 base_offset) { return base_offset <= offset; });
 
     const auto bucket = buckets[bucket_id];
 
     if (bucket.number_entries == 1)
         return {bucket_id, 0};
 
-    size_t low = 0;
-    size_t mid = 0;
-    size_t high = bucket.number_entries - 1;
+    std::size_t low = 0;
+    std::size_t mid = 0;
+    std::size_t high = bucket.number_entries - 1;
     while (low <= high) {
         mid = (low + high) / 2;
         if (bucket.entries[mid].address_patch > offset) {
@@ -179,11 +179,11 @@ std::string BKTR::GetName() const {
     return base_romfs->GetName();
 }
 
-size_t BKTR::GetSize() const {
+std::size_t BKTR::GetSize() const {
     return relocation.size;
 }
 
-bool BKTR::Resize(size_t new_size) {
+bool BKTR::Resize(std::size_t new_size) {
     return false;
 }
 
@@ -199,7 +199,7 @@ bool BKTR::IsReadable() const {
     return true;
 }
 
-size_t BKTR::Write(const u8* data, size_t length, size_t offset) {
+std::size_t BKTR::Write(const u8* data, std::size_t length, std::size_t offset) {
     return 0;
 }
 
diff --git a/src/core/file_sys/nca_patch.h b/src/core/file_sys/nca_patch.h
index 381f3504f..8e64e8378 100644
--- a/src/core/file_sys/nca_patch.h
+++ b/src/core/file_sys/nca_patch.h
@@ -98,13 +98,13 @@ public:
          Core::Crypto::Key128 key, u64 base_offset, u64 ivfc_offset, std::array<u8, 8> section_ctr);
     ~BKTR() override;
 
-    size_t Read(u8* data, size_t length, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
 
     std::string GetName() const override;
 
-    size_t GetSize() const override;
+    std::size_t GetSize() const override;
 
-    bool Resize(size_t new_size) override;
+    bool Resize(std::size_t new_size) override;
 
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
 
@@ -112,14 +112,14 @@ public:
 
     bool IsReadable() const override;
 
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
 
     bool Rename(std::string_view name) override;
 
 private:
     template <bool Subsection, typename BlockType, typename BucketType>
-    std::pair<size_t, size_t> SearchBucketEntry(u64 offset, BlockType block,
-                                                BucketType buckets) const;
+    std::pair<std::size_t, std::size_t> SearchBucketEntry(u64 offset, BlockType block,
+                                                          BucketType buckets) const;
 
     RelocationEntry GetRelocationEntry(u64 offset) const;
     RelocationEntry GetNextRelocationEntry(u64 offset) const;
diff --git a/src/core/file_sys/partition_filesystem.cpp b/src/core/file_sys/partition_filesystem.cpp
index c377edc9c..f5b3b0175 100644
--- a/src/core/file_sys/partition_filesystem.cpp
+++ b/src/core/file_sys/partition_filesystem.cpp
@@ -42,21 +42,21 @@ PartitionFilesystem::PartitionFilesystem(std::shared_ptr<VfsFile> file) {
 
     is_hfs = pfs_header.magic == Common::MakeMagic('H', 'F', 'S', '0');
 
-    size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
-    size_t metadata_size =
+    std::size_t entry_size = is_hfs ? sizeof(HFSEntry) : sizeof(PFSEntry);
+    std::size_t metadata_size =
         sizeof(Header) + (pfs_header.num_entries * entry_size) + pfs_header.strtab_size;
 
     // Actually read in now...
     std::vector<u8> file_data = file->ReadBytes(metadata_size);
-    const size_t total_size = file_data.size();
+    const std::size_t total_size = file_data.size();
 
     if (total_size != metadata_size) {
         status = Loader::ResultStatus::ErrorIncorrectPFSFileSize;
         return;
     }
 
-    size_t entries_offset = sizeof(Header);
-    size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
+    std::size_t entries_offset = sizeof(Header);
+    std::size_t strtab_offset = entries_offset + (pfs_header.num_entries * entry_size);
     content_offset = strtab_offset + pfs_header.strtab_size;
     for (u16 i = 0; i < pfs_header.num_entries; i++) {
         FSEntry entry;
diff --git a/src/core/file_sys/partition_filesystem.h b/src/core/file_sys/partition_filesystem.h
index be7bc32a8..e80d2456b 100644
--- a/src/core/file_sys/partition_filesystem.h
+++ b/src/core/file_sys/partition_filesystem.h
@@ -79,7 +79,7 @@ private:
 
     Header pfs_header{};
     bool is_hfs = false;
-    size_t content_offset = 0;
+    std::size_t content_offset = 0;
 
     std::vector<VirtualFile> pfs_files;
     std::vector<VirtualDir> pfs_dirs;
diff --git a/src/core/file_sys/patch_manager.cpp b/src/core/file_sys/patch_manager.cpp
index 6cecab336..b37b4c68b 100644
--- a/src/core/file_sys/patch_manager.cpp
+++ b/src/core/file_sys/patch_manager.cpp
@@ -21,7 +21,7 @@ constexpr u64 SINGLE_BYTE_MODULUS = 0x100;
 std::string FormatTitleVersion(u32 version, TitleVersionFormat format) {
     std::array<u8, sizeof(u32)> bytes{};
     bytes[0] = version % SINGLE_BYTE_MODULUS;
-    for (size_t i = 1; i < bytes.size(); ++i) {
+    for (std::size_t i = 1; i < bytes.size(); ++i) {
         version /= SINGLE_BYTE_MODULUS;
         bytes[i] = version % SINGLE_BYTE_MODULUS;
     }
@@ -36,7 +36,7 @@ constexpr std::array<const char*, 1> PATCH_TYPE_NAMES{
 };
 
 std::string FormatPatchTypeName(PatchType type) {
-    return PATCH_TYPE_NAMES.at(static_cast<size_t>(type));
+    return PATCH_TYPE_NAMES.at(static_cast<std::size_t>(type));
 }
 
 PatchManager::PatchManager(u64 title_id) : title_id(title_id) {}
diff --git a/src/core/file_sys/program_metadata.cpp b/src/core/file_sys/program_metadata.cpp
index ccb685526..9d19aaa6d 100644
--- a/src/core/file_sys/program_metadata.cpp
+++ b/src/core/file_sys/program_metadata.cpp
@@ -13,7 +13,7 @@
 namespace FileSys {
 
 Loader::ResultStatus ProgramMetadata::Load(VirtualFile file) {
-    size_t total_size = static_cast<size_t>(file->GetSize());
+    std::size_t total_size = static_cast<std::size_t>(file->GetSize());
     if (total_size < sizeof(Header))
         return Loader::ResultStatus::ErrorBadNPDMHeader;
 
diff --git a/src/core/file_sys/registered_cache.cpp b/src/core/file_sys/registered_cache.cpp
index 7361a67be..dad7ae10b 100644
--- a/src/core/file_sys/registered_cache.cpp
+++ b/src/core/file_sys/registered_cache.cpp
@@ -62,11 +62,11 @@ static std::string GetCNMTName(TitleType type, u64 title_id) {
         "" ///< Currently unknown 'DeltaTitle'
     };
 
-    auto index = static_cast<size_t>(type);
+    auto index = static_cast<std::size_t>(type);
     // If the index is after the jump in TitleType, subtract it out.
-    if (index >= static_cast<size_t>(TitleType::Application)) {
-        index -= static_cast<size_t>(TitleType::Application) -
-                 static_cast<size_t>(TitleType::FirmwarePackageB);
+    if (index >= static_cast<std::size_t>(TitleType::Application)) {
+        index -= static_cast<std::size_t>(TitleType::Application) -
+                 static_cast<std::size_t>(TitleType::FirmwarePackageB);
     }
     return fmt::format("{}_{:016x}.cnmt", TITLE_TYPE_NAMES[index], title_id);
 }
@@ -105,7 +105,7 @@ VirtualFile RegisteredCache::OpenFileOrDirectoryConcat(const VirtualDir& dir,
         } else {
             std::vector<VirtualFile> concat;
             // Since the files are a two-digit hex number, max is FF.
-            for (size_t i = 0; i < 0x100; ++i) {
+            for (std::size_t i = 0; i < 0x100; ++i) {
                 auto next = nca_dir->GetFile(fmt::format("{:02X}", i));
                 if (next != nullptr) {
                     concat.push_back(std::move(next));
diff --git a/src/core/file_sys/romfs.cpp b/src/core/file_sys/romfs.cpp
index e490c8ace..9f6e41cdf 100644
--- a/src/core/file_sys/romfs.cpp
+++ b/src/core/file_sys/romfs.cpp
@@ -49,7 +49,7 @@ struct FileEntry {
 static_assert(sizeof(FileEntry) == 0x20, "FileEntry has incorrect size.");
 
 template <typename Entry>
-static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, size_t offset) {
+static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, std::size_t offset) {
     Entry entry{};
     if (file->ReadObject(&entry, offset) != sizeof(Entry))
         return {};
@@ -59,8 +59,8 @@ static std::pair<Entry, std::string> GetEntry(const VirtualFile& file, size_t of
     return {entry, string};
 }
 
-void ProcessFile(VirtualFile file, size_t file_offset, size_t data_offset, u32 this_file_offset,
-                 std::shared_ptr<VectorVfsDirectory> parent) {
+void ProcessFile(VirtualFile file, std::size_t file_offset, std::size_t data_offset,
+                 u32 this_file_offset, std::shared_ptr<VectorVfsDirectory> parent) {
     while (true) {
         auto entry = GetEntry<FileEntry>(file, file_offset + this_file_offset);
 
@@ -74,8 +74,9 @@ void ProcessFile(VirtualFile file, size_t file_offset, size_t data_offset, u32 t
     }
 }
 
-void ProcessDirectory(VirtualFile file, size_t dir_offset, size_t file_offset, size_t data_offset,
-                      u32 this_dir_offset, std::shared_ptr<VectorVfsDirectory> parent) {
+void ProcessDirectory(VirtualFile file, std::size_t dir_offset, std::size_t file_offset,
+                      std::size_t data_offset, u32 this_dir_offset,
+                      std::shared_ptr<VectorVfsDirectory> parent) {
     while (true) {
         auto entry = GetEntry<DirectoryEntry>(file, dir_offset + this_dir_offset);
         auto current = std::make_shared<VectorVfsDirectory>(
diff --git a/src/core/file_sys/vfs.cpp b/src/core/file_sys/vfs.cpp
index 146c839f4..d7b52abfd 100644
--- a/src/core/file_sys/vfs.cpp
+++ b/src/core/file_sys/vfs.cpp
@@ -167,18 +167,18 @@ std::string VfsFile::GetExtension() const {
 
 VfsDirectory::~VfsDirectory() = default;
 
-boost::optional<u8> VfsFile::ReadByte(size_t offset) const {
+boost::optional<u8> VfsFile::ReadByte(std::size_t offset) const {
     u8 out{};
-    size_t size = Read(&out, 1, offset);
+    std::size_t size = Read(&out, 1, offset);
     if (size == 1)
         return out;
 
     return boost::none;
 }
 
-std::vector<u8> VfsFile::ReadBytes(size_t size, size_t offset) const {
+std::vector<u8> VfsFile::ReadBytes(std::size_t size, std::size_t offset) const {
     std::vector<u8> out(size);
-    size_t read_size = Read(out.data(), size, offset);
+    std::size_t read_size = Read(out.data(), size, offset);
     out.resize(read_size);
     return out;
 }
@@ -187,11 +187,11 @@ std::vector<u8> VfsFile::ReadAllBytes() const {
     return ReadBytes(GetSize());
 }
 
-bool VfsFile::WriteByte(u8 data, size_t offset) {
+bool VfsFile::WriteByte(u8 data, std::size_t offset) {
     return Write(&data, 1, offset) == 1;
 }
 
-size_t VfsFile::WriteBytes(const std::vector<u8>& data, size_t offset) {
+std::size_t VfsFile::WriteBytes(const std::vector<u8>& data, std::size_t offset) {
     return Write(data.data(), data.size(), offset);
 }
 
@@ -215,7 +215,7 @@ std::shared_ptr<VfsFile> VfsDirectory::GetFileRelative(std::string_view path) co
     }
 
     auto dir = GetSubdirectory(vec[0]);
-    for (size_t component = 1; component < vec.size() - 1; ++component) {
+    for (std::size_t component = 1; component < vec.size() - 1; ++component) {
         if (dir == nullptr) {
             return nullptr;
         }
@@ -249,7 +249,7 @@ std::shared_ptr<VfsDirectory> VfsDirectory::GetDirectoryRelative(std::string_vie
     }
 
     auto dir = GetSubdirectory(vec[0]);
-    for (size_t component = 1; component < vec.size(); ++component) {
+    for (std::size_t component = 1; component < vec.size(); ++component) {
         if (dir == nullptr) {
             return nullptr;
         }
@@ -286,7 +286,7 @@ bool VfsDirectory::IsRoot() const {
     return GetParentDirectory() == nullptr;
 }
 
-size_t VfsDirectory::GetSize() const {
+std::size_t VfsDirectory::GetSize() const {
     const auto& files = GetFiles();
     const auto sum_sizes = [](const auto& range) {
         return std::accumulate(range.begin(), range.end(), 0ULL,
@@ -434,13 +434,13 @@ bool ReadOnlyVfsDirectory::Rename(std::string_view name) {
     return false;
 }
 
-bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size) {
+bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t block_size) {
     if (file1->GetSize() != file2->GetSize())
         return false;
 
     std::vector<u8> f1_v(block_size);
     std::vector<u8> f2_v(block_size);
-    for (size_t i = 0; i < file1->GetSize(); i += block_size) {
+    for (std::size_t i = 0; i < file1->GetSize(); i += block_size) {
         auto f1_vs = file1->Read(f1_v.data(), block_size, i);
         auto f2_vs = file2->Read(f2_v.data(), block_size, i);
 
diff --git a/src/core/file_sys/vfs.h b/src/core/file_sys/vfs.h
index 5142a3e86..74489b452 100644
--- a/src/core/file_sys/vfs.h
+++ b/src/core/file_sys/vfs.h
@@ -92,9 +92,9 @@ public:
     // Retrieves the extension of the file name.
     virtual std::string GetExtension() const;
     // Retrieves the size of the file.
-    virtual size_t GetSize() const = 0;
+    virtual std::size_t GetSize() const = 0;
     // Resizes the file to new_size. Returns whether or not the operation was successful.
-    virtual bool Resize(size_t new_size) = 0;
+    virtual bool Resize(std::size_t new_size) = 0;
     // Gets a pointer to the directory containing this file, returning nullptr if there is none.
     virtual std::shared_ptr<VfsDirectory> GetContainingDirectory() const = 0;
 
@@ -105,15 +105,15 @@ public:
 
     // The primary method of reading from the file. Reads length bytes into data starting at offset
     // into file. Returns number of bytes successfully read.
-    virtual size_t Read(u8* data, size_t length, size_t offset = 0) const = 0;
+    virtual std::size_t Read(u8* data, std::size_t length, std::size_t offset = 0) const = 0;
     // The primary method of writing to the file. Writes length bytes from data starting at offset
     // into file. Returns number of bytes successfully written.
-    virtual size_t Write(const u8* data, size_t length, size_t offset = 0) = 0;
+    virtual std::size_t Write(const u8* data, std::size_t length, std::size_t offset = 0) = 0;
 
     // Reads exactly one byte at the offset provided, returning boost::none on error.
-    virtual boost::optional<u8> ReadByte(size_t offset = 0) const;
+    virtual boost::optional<u8> ReadByte(std::size_t offset = 0) const;
     // Reads size bytes starting at offset in file into a vector.
-    virtual std::vector<u8> ReadBytes(size_t size, size_t offset = 0) const;
+    virtual std::vector<u8> ReadBytes(std::size_t size, std::size_t offset = 0) const;
     // Reads all the bytes from the file into a vector. Equivalent to 'file->Read(file->GetSize(),
     // 0)'
     virtual std::vector<u8> ReadAllBytes() const;
@@ -121,7 +121,7 @@ public:
     // Reads an array of type T, size number_elements starting at offset.
     // Returns the number of bytes (sizeof(T)*number_elements) read successfully.
     template <typename T>
-    size_t ReadArray(T* data, size_t number_elements, size_t offset = 0) const {
+    std::size_t ReadArray(T* data, std::size_t number_elements, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
 
         return Read(reinterpret_cast<u8*>(data), number_elements * sizeof(T), offset);
@@ -130,7 +130,7 @@ public:
     // Reads size bytes into the memory starting at data starting at offset into the file.
     // Returns the number of bytes read successfully.
     template <typename T>
-    size_t ReadBytes(T* data, size_t size, size_t offset = 0) const {
+    std::size_t ReadBytes(T* data, std::size_t size, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Read(reinterpret_cast<u8*>(data), size, offset);
     }
@@ -138,22 +138,22 @@ public:
     // Reads one object of type T starting at offset in file.
     // Returns the number of bytes read successfully (sizeof(T)).
     template <typename T>
-    size_t ReadObject(T* data, size_t offset = 0) const {
+    std::size_t ReadObject(T* data, std::size_t offset = 0) const {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Read(reinterpret_cast<u8*>(data), sizeof(T), offset);
     }
 
     // Writes exactly one byte to offset in file and retuns whether or not the byte was written
     // successfully.
-    virtual bool WriteByte(u8 data, size_t offset = 0);
+    virtual bool WriteByte(u8 data, std::size_t offset = 0);
     // Writes a vector of bytes to offset in file and returns the number of bytes successfully
     // written.
-    virtual size_t WriteBytes(const std::vector<u8>& data, size_t offset = 0);
+    virtual std::size_t WriteBytes(const std::vector<u8>& data, std::size_t offset = 0);
 
     // Writes an array of type T, size number_elements to offset in file.
     // Returns the number of bytes (sizeof(T)*number_elements) written successfully.
     template <typename T>
-    size_t WriteArray(const T* data, size_t number_elements, size_t offset = 0) {
+    std::size_t WriteArray(const T* data, std::size_t number_elements, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(data, number_elements * sizeof(T), offset);
     }
@@ -161,7 +161,7 @@ public:
     // Writes size bytes starting at memory location data to offset in file.
     // Returns the number of bytes written successfully.
     template <typename T>
-    size_t WriteBytes(const T* data, size_t size, size_t offset = 0) {
+    std::size_t WriteBytes(const T* data, std::size_t size, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(reinterpret_cast<const u8*>(data), size, offset);
     }
@@ -169,7 +169,7 @@ public:
     // Writes one object of type T to offset in file.
     // Returns the number of bytes written successfully (sizeof(T)).
     template <typename T>
-    size_t WriteObject(const T& data, size_t offset = 0) {
+    std::size_t WriteObject(const T& data, std::size_t offset = 0) {
         static_assert(std::is_trivially_copyable_v<T>, "Data type must be trivially copyable.");
         return Write(&data, sizeof(T), offset);
     }
@@ -221,7 +221,7 @@ public:
     // Returns the name of the directory.
     virtual std::string GetName() const = 0;
     // Returns the total size of all files and subdirectories in this directory.
-    virtual size_t GetSize() const;
+    virtual std::size_t GetSize() const;
     // Returns the parent directory of this directory. Returns nullptr if this directory is root or
     // has no parent.
     virtual std::shared_ptr<VfsDirectory> GetParentDirectory() const = 0;
@@ -311,7 +311,7 @@ public:
 };
 
 // Compare the two files, byte-for-byte, in increments specificed by block_size
-bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, size_t block_size = 0x200);
+bool DeepEquals(const VirtualFile& file1, const VirtualFile& file2, std::size_t block_size = 0x200);
 
 // A method that copies the raw data between two different implementations of VirtualFile. If you
 // are using the same implementation, it is probably better to use the Copy method in the parent
diff --git a/src/core/file_sys/vfs_concat.cpp b/src/core/file_sys/vfs_concat.cpp
index e6bf586a3..25a980cbb 100644
--- a/src/core/file_sys/vfs_concat.cpp
+++ b/src/core/file_sys/vfs_concat.cpp
@@ -20,7 +20,7 @@ VirtualFile ConcatenateFiles(std::vector<VirtualFile> files, std::string name) {
 
 ConcatenatedVfsFile::ConcatenatedVfsFile(std::vector<VirtualFile> files_, std::string name)
     : name(std::move(name)) {
-    size_t next_offset = 0;
+    std::size_t next_offset = 0;
     for (const auto& file : files_) {
         files[next_offset] = file;
         next_offset += file->GetSize();
@@ -35,13 +35,13 @@ std::string ConcatenatedVfsFile::GetName() const {
     return files.begin()->second->GetName();
 }
 
-size_t ConcatenatedVfsFile::GetSize() const {
+std::size_t ConcatenatedVfsFile::GetSize() const {
     if (files.empty())
         return 0;
     return files.rbegin()->first + files.rbegin()->second->GetSize();
 }
 
-bool ConcatenatedVfsFile::Resize(size_t new_size) {
+bool ConcatenatedVfsFile::Resize(std::size_t new_size) {
     return false;
 }
 
@@ -59,7 +59,7 @@ bool ConcatenatedVfsFile::IsReadable() const {
     return true;
 }
 
-size_t ConcatenatedVfsFile::Read(u8* data, size_t length, size_t offset) const {
+std::size_t ConcatenatedVfsFile::Read(u8* data, std::size_t length, std::size_t offset) const {
     auto entry = files.end();
     for (auto iter = files.begin(); iter != files.end(); ++iter) {
         if (iter->first > offset) {
@@ -84,7 +84,7 @@ size_t ConcatenatedVfsFile::Read(u8* data, size_t length, size_t offset) const {
     return entry->second->Read(data, length, offset - entry->first);
 }
 
-size_t ConcatenatedVfsFile::Write(const u8* data, size_t length, size_t offset) {
+std::size_t ConcatenatedVfsFile::Write(const u8* data, std::size_t length, std::size_t offset) {
     return 0;
 }
 
diff --git a/src/core/file_sys/vfs_concat.h b/src/core/file_sys/vfs_concat.h
index 686d32515..31775db7e 100644
--- a/src/core/file_sys/vfs_concat.h
+++ b/src/core/file_sys/vfs_concat.h
@@ -23,13 +23,13 @@ class ConcatenatedVfsFile : public VfsFile {
 
 public:
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
     bool Rename(std::string_view name) override;
 
 private:
diff --git a/src/core/file_sys/vfs_offset.cpp b/src/core/file_sys/vfs_offset.cpp
index 847cde2f5..f5ed291ea 100644
--- a/src/core/file_sys/vfs_offset.cpp
+++ b/src/core/file_sys/vfs_offset.cpp
@@ -9,7 +9,7 @@
 
 namespace FileSys {
 
-OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, size_t size_, size_t offset_,
+OffsetVfsFile::OffsetVfsFile(std::shared_ptr<VfsFile> file_, std::size_t size_, std::size_t offset_,
                              std::string name_, VirtualDir parent_)
     : file(file_), offset(offset_), size(size_), name(std::move(name_)),
       parent(parent_ == nullptr ? file->GetContainingDirectory() : std::move(parent_)) {}
@@ -18,11 +18,11 @@ std::string OffsetVfsFile::GetName() const {
     return name.empty() ? file->GetName() : name;
 }
 
-size_t OffsetVfsFile::GetSize() const {
+std::size_t OffsetVfsFile::GetSize() const {
     return size;
 }
 
-bool OffsetVfsFile::Resize(size_t new_size) {
+bool OffsetVfsFile::Resize(std::size_t new_size) {
     if (offset + new_size < file->GetSize()) {
         size = new_size;
     } else {
@@ -47,22 +47,22 @@ bool OffsetVfsFile::IsReadable() const {
     return file->IsReadable();
 }
 
-size_t OffsetVfsFile::Read(u8* data, size_t length, size_t r_offset) const {
+std::size_t OffsetVfsFile::Read(u8* data, std::size_t length, std::size_t r_offset) const {
     return file->Read(data, TrimToFit(length, r_offset), offset + r_offset);
 }
 
-size_t OffsetVfsFile::Write(const u8* data, size_t length, size_t r_offset) {
+std::size_t OffsetVfsFile::Write(const u8* data, std::size_t length, std::size_t r_offset) {
     return file->Write(data, TrimToFit(length, r_offset), offset + r_offset);
 }
 
-boost::optional<u8> OffsetVfsFile::ReadByte(size_t r_offset) const {
+boost::optional<u8> OffsetVfsFile::ReadByte(std::size_t r_offset) const {
     if (r_offset < size)
         return file->ReadByte(offset + r_offset);
 
     return boost::none;
 }
 
-std::vector<u8> OffsetVfsFile::ReadBytes(size_t r_size, size_t r_offset) const {
+std::vector<u8> OffsetVfsFile::ReadBytes(std::size_t r_size, std::size_t r_offset) const {
     return file->ReadBytes(TrimToFit(r_size, r_offset), offset + r_offset);
 }
 
@@ -70,14 +70,14 @@ std::vector<u8> OffsetVfsFile::ReadAllBytes() const {
     return file->ReadBytes(size, offset);
 }
 
-bool OffsetVfsFile::WriteByte(u8 data, size_t r_offset) {
+bool OffsetVfsFile::WriteByte(u8 data, std::size_t r_offset) {
     if (r_offset < size)
         return file->WriteByte(data, offset + r_offset);
 
     return false;
 }
 
-size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, size_t r_offset) {
+std::size_t OffsetVfsFile::WriteBytes(const std::vector<u8>& data, std::size_t r_offset) {
     return file->Write(data.data(), TrimToFit(data.size(), r_offset), offset + r_offset);
 }
 
@@ -85,12 +85,12 @@ bool OffsetVfsFile::Rename(std::string_view name) {
     return file->Rename(name);
 }
 
-size_t OffsetVfsFile::GetOffset() const {
+std::size_t OffsetVfsFile::GetOffset() const {
     return offset;
 }
 
-size_t OffsetVfsFile::TrimToFit(size_t r_size, size_t r_offset) const {
-    return std::clamp(r_size, size_t{0}, size - r_offset);
+std::size_t OffsetVfsFile::TrimToFit(std::size_t r_size, std::size_t r_offset) const {
+    return std::clamp(r_size, std::size_t{0}, size - r_offset);
 }
 
 } // namespace FileSys
diff --git a/src/core/file_sys/vfs_offset.h b/src/core/file_sys/vfs_offset.h
index cb92d1570..34cb180b3 100644
--- a/src/core/file_sys/vfs_offset.h
+++ b/src/core/file_sys/vfs_offset.h
@@ -17,33 +17,33 @@ namespace FileSys {
 // the size of this wrapper.
 class OffsetVfsFile : public VfsFile {
 public:
-    OffsetVfsFile(std::shared_ptr<VfsFile> file, size_t size, size_t offset = 0,
+    OffsetVfsFile(std::shared_ptr<VfsFile> file, std::size_t size, std::size_t offset = 0,
                   std::string new_name = "", VirtualDir new_parent = nullptr);
 
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
-    boost::optional<u8> ReadByte(size_t offset) const override;
-    std::vector<u8> ReadBytes(size_t size, size_t offset) const override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
+    boost::optional<u8> ReadByte(std::size_t offset) const override;
+    std::vector<u8> ReadBytes(std::size_t size, std::size_t offset) const override;
     std::vector<u8> ReadAllBytes() const override;
-    bool WriteByte(u8 data, size_t offset) override;
-    size_t WriteBytes(const std::vector<u8>& data, size_t offset) override;
+    bool WriteByte(u8 data, std::size_t offset) override;
+    std::size_t WriteBytes(const std::vector<u8>& data, std::size_t offset) override;
 
     bool Rename(std::string_view name) override;
 
-    size_t GetOffset() const;
+    std::size_t GetOffset() const;
 
 private:
-    size_t TrimToFit(size_t r_size, size_t r_offset) const;
+    std::size_t TrimToFit(std::size_t r_size, std::size_t r_offset) const;
 
     std::shared_ptr<VfsFile> file;
-    size_t offset;
-    size_t size;
+    std::size_t offset;
+    std::size_t size;
     std::string name;
     VirtualDir parent;
 };
diff --git a/src/core/file_sys/vfs_real.cpp b/src/core/file_sys/vfs_real.cpp
index 89b101145..5e242e20f 100644
--- a/src/core/file_sys/vfs_real.cpp
+++ b/src/core/file_sys/vfs_real.cpp
@@ -227,11 +227,11 @@ std::string RealVfsFile::GetName() const {
     return path_components.back();
 }
 
-size_t RealVfsFile::GetSize() const {
+std::size_t RealVfsFile::GetSize() const {
     return backing->GetSize();
 }
 
-bool RealVfsFile::Resize(size_t new_size) {
+bool RealVfsFile::Resize(std::size_t new_size) {
     return backing->Resize(new_size);
 }
 
@@ -247,13 +247,13 @@ bool RealVfsFile::IsReadable() const {
     return (perms & Mode::ReadWrite) != 0;
 }
 
-size_t RealVfsFile::Read(u8* data, size_t length, size_t offset) const {
+std::size_t RealVfsFile::Read(u8* data, std::size_t length, std::size_t offset) const {
     if (!backing->Seek(offset, SEEK_SET))
         return 0;
     return backing->ReadBytes(data, length);
 }
 
-size_t RealVfsFile::Write(const u8* data, size_t length, size_t offset) {
+std::size_t RealVfsFile::Write(const u8* data, std::size_t length, std::size_t offset) {
     if (!backing->Seek(offset, SEEK_SET))
         return 0;
     return backing->WriteBytes(data, length);
diff --git a/src/core/file_sys/vfs_real.h b/src/core/file_sys/vfs_real.h
index 7db86691f..681c43e82 100644
--- a/src/core/file_sys/vfs_real.h
+++ b/src/core/file_sys/vfs_real.h
@@ -48,13 +48,13 @@ public:
     ~RealVfsFile() override;
 
     std::string GetName() const override;
-    size_t GetSize() const override;
-    bool Resize(size_t new_size) override;
+    std::size_t GetSize() const override;
+    bool Resize(std::size_t new_size) override;
     std::shared_ptr<VfsDirectory> GetContainingDirectory() const override;
     bool IsWritable() const override;
     bool IsReadable() const override;
-    size_t Read(u8* data, size_t length, size_t offset) const override;
-    size_t Write(const u8* data, size_t length, size_t offset) override;
+    std::size_t Read(u8* data, std::size_t length, std::size_t offset) const override;
+    std::size_t Write(const u8* data, std::size_t length, std::size_t offset) override;
     bool Rename(std::string_view name) override;
 
 private:
diff --git a/src/core/file_sys/xts_archive.cpp b/src/core/file_sys/xts_archive.cpp
index 4dbc25c55..0173f71c1 100644
--- a/src/core/file_sys/xts_archive.cpp
+++ b/src/core/file_sys/xts_archive.cpp
@@ -25,8 +25,8 @@ namespace FileSys {
 constexpr u64 NAX_HEADER_PADDING_SIZE = 0x4000;
 
 template <typename SourceData, typename SourceKey, typename Destination>
-static bool CalculateHMAC256(Destination* out, const SourceKey* key, size_t key_length,
-                             const SourceData* data, size_t data_length) {
+static bool CalculateHMAC256(Destination* out, const SourceKey* key, std::size_t key_length,
+                             const SourceData* data, std::size_t data_length) {
     mbedtls_md_context_t context;
     mbedtls_md_init(&context);
 
@@ -91,7 +91,7 @@ Loader::ResultStatus NAX::Parse(std::string_view path) {
 
     const auto enc_keys = header->key_area;
 
-    size_t i = 0;
+    std::size_t i = 0;
     for (; i < sd_keys.size(); ++i) {
         std::array<Core::Crypto::Key128, 2> nax_keys{};
         if (!CalculateHMAC256(nax_keys.data(), sd_keys[i].data(), 0x10, std::string(path).c_str(),
@@ -99,7 +99,7 @@ Loader::ResultStatus NAX::Parse(std::string_view path) {
             return Loader::ResultStatus::ErrorNAXKeyHMACFailed;
         }
 
-        for (size_t j = 0; j < nax_keys.size(); ++j) {
+        for (std::size_t j = 0; j < nax_keys.size(); ++j) {
             Core::Crypto::AESCipher<Core::Crypto::Key128> cipher(nax_keys[j],
                                                                  Core::Crypto::Mode::ECB);
             cipher.Transcode(enc_keys[j].data(), 0x10, header->key_area[j].data(),