Common: Replace Result with C++23's std::expected.

3 files changed, 11 insertions, 9 deletions

diff --git a/Source/Core/DiscIO/CompressedBlob.cpp b/Source/Core/DiscIO/CompressedBlob.cpp
index 7f86ee2388..9c58b08dc5 100644
--- a/Source/Core/DiscIO/CompressedBlob.cpp
+++ b/Source/Core/DiscIO/CompressedBlob.cpp
@@ -5,6 +5,7 @@
 
 #include <algorithm>
 #include <cstring>
+#include <expected>
 #include <memory>
 #include <string>
 #include <utility>
@@ -210,7 +211,7 @@ static ConversionResult<OutputParameters> Compress(CompressThreadState* state,
   if (retval != Z_OK)
   {
     ERROR_LOG_FMT(DISCIO, "Deflate failed");
-    return ConversionResultCode::InternalError;
+    return std::unexpected{ConversionResultCode::InternalError};
   }
 
   const int status = deflate(&state->z, Z_FINISH);
diff --git a/Source/Core/DiscIO/MultithreadedCompressor.h b/Source/Core/DiscIO/MultithreadedCompressor.h
index 6019d5472b..5afaa1cca5 100644
--- a/Source/Core/DiscIO/MultithreadedCompressor.h
+++ b/Source/Core/DiscIO/MultithreadedCompressor.h
@@ -4,6 +4,7 @@
 #pragma once
 
 #include <atomic>
+#include <expected>
 #include <functional>
 #include <memory>
 #include <thread>
@@ -11,7 +12,6 @@
 
 #include "Common/Assert.h"
 #include "Common/Event.h"
-#include "Common/Result.h"
 
 namespace DiscIO
 {
@@ -25,7 +25,7 @@ enum class ConversionResultCode
 };
 
 template <typename T>
-using ConversionResult = Common::Result<T, ConversionResultCode>;
+using ConversionResult = std::expected<T, ConversionResultCode>;
 
 // This class starts a number of compression threads and one output thread.
 // The set_up_compress_thread_state function is called at the start of each compression thread.
@@ -165,7 +165,7 @@ private:
       }
       else
       {
-        SetError(result.Error());
+        SetError(result.error());
       }
 
       state->compress_done_event.Set();
diff --git a/Source/Core/DiscIO/WIABlob.cpp b/Source/Core/DiscIO/WIABlob.cpp
index 743eade500..c8e7f066c0 100644
--- a/Source/Core/DiscIO/WIABlob.cpp
+++ b/Source/Core/DiscIO/WIABlob.cpp
@@ -6,6 +6,7 @@
 #include <algorithm>
 #include <array>
 #include <cstring>
+#include <expected>
 #include <limits>
 #include <map>
 #include <memory>
@@ -1578,7 +1579,7 @@ WIARVZFileReader<RVZ>::ProcessAndCompress(CompressThreadState* state, CompressPa
     if (state->compressor)
     {
       if (!state->compressor->Start(entry.exception_lists.size() + entry.main_data.size()))
-        return ConversionResultCode::InternalError;
+        return std::unexpected{ConversionResultCode::InternalError};
     }
 
     if (!entry.exception_lists.empty())
@@ -1588,7 +1589,7 @@ WIARVZFileReader<RVZ>::ProcessAndCompress(CompressThreadState* state, CompressPa
         if (!state->compressor->Compress(entry.exception_lists.data(),
                                          entry.exception_lists.size()))
         {
-          return ConversionResultCode::InternalError;
+          return std::unexpected{ConversionResultCode::InternalError};
         }
       }
       else
@@ -1601,7 +1602,7 @@ WIARVZFileReader<RVZ>::ProcessAndCompress(CompressThreadState* state, CompressPa
           if (!state->compressor->AddPrecedingDataOnlyForPurgeHashing(entry.exception_lists.data(),
                                                                       entry.exception_lists.size()))
           {
-            return ConversionResultCode::InternalError;
+            return std::unexpected{ConversionResultCode::InternalError};
           }
         }
       }
@@ -1610,9 +1611,9 @@ WIARVZFileReader<RVZ>::ProcessAndCompress(CompressThreadState* state, CompressPa
     if (state->compressor)
     {
       if (!state->compressor->Compress(entry.main_data.data(), entry.main_data.size()))
-        return ConversionResultCode::InternalError;
+        return std::unexpected{ConversionResultCode::InternalError};
       if (!state->compressor->End())
-        return ConversionResultCode::InternalError;
+        return std::unexpected{ConversionResultCode::InternalError};
     }
 
     bool compressed = !!state->compressor;