(Rewroking r296581) PDB/BinaryStreamTest.cpp: Appease mingw to avoid std::errc::no_buffer_space.

Unfortunately, mingw's libstdc++ doesn't provide winsock2 errors.
That said, we should avoid raising OS-oriented error code in our code.

For now, I suggest to define custom error from std::error_category.
See also; https://reviews.llvm.org/D20592

llvm-svn: 296583

1 files changed, 4 insertions, 3 deletions

diff --git a/llvm/unittests/DebugInfo/PDB/BinaryStreamTest.cpp b/llvm/unittests/DebugInfo/PDB/BinaryStreamTest.cpp
index 5c22a4afa92..b7308868e05 100644
--- a/llvm/unittests/DebugInfo/PDB/BinaryStreamTest.cpp
+++ b/llvm/unittests/DebugInfo/PDB/BinaryStreamTest.cpp
@@ -13,6 +13,7 @@
 #include "llvm/DebugInfo/MSF/BinaryStreamReader.h"
 #include "llvm/DebugInfo/MSF/BinaryStreamRef.h"
 #include "llvm/DebugInfo/MSF/BinaryStreamWriter.h"
+#include "llvm/Support/Errc.h"
 #include "gtest/gtest.h"
 
 #include <unordered_map>
@@ -56,7 +57,7 @@ public:
   Error readBytes(uint32_t Offset, uint32_t Size,
                   ArrayRef<uint8_t> &Buffer) override {
     if (Offset + Size > Data.size())
-      return errorCodeToError(make_error_code(std::errc::no_buffer_space));
+      return errorCodeToError(make_error_code(llvm::errc::function_not_supported));
     uint32_t S = startIndex(Offset);
     auto Ref = Data.drop_front(S);
     if (Ref.size() >= Size) {
@@ -75,7 +76,7 @@ public:
   Error readLongestContiguousChunk(uint32_t Offset,
                                    ArrayRef<uint8_t> &Buffer) override {
     if (Offset >= Data.size())
-      return errorCodeToError(make_error_code(std::errc::no_buffer_space));
+      return errorCodeToError(make_error_code(llvm::errc::function_not_supported));
     uint32_t S = startIndex(Offset);
     Buffer = Data.drop_front(S);
     return Error::success();
@@ -85,7 +86,7 @@ public:
 
   Error writeBytes(uint32_t Offset, ArrayRef<uint8_t> SrcData) override {
     if (Offset + SrcData.size() > Data.size())
-      return errorCodeToError(make_error_code(std::errc::no_buffer_space));
+      return errorCodeToError(make_error_code(llvm::errc::function_not_supported));
     if (SrcData.empty())
       return Error::success();