Disabling 4GB file test on 32bit Linux as it isn't supported yet.

Author: stgates

Release/src/streams/windows/fileio.cpp

@@ -393,9 +393,9 @@ size_t _write_file_async(_In_ streams::details::_file_info_impl *fInfo, _In_ str
     }
     else
     {
-        pOverlapped->Offset = (DWORD)position;
+        pOverlapped->Offset = static_cast<DWORD>(position);
 #ifdef _WIN64
-        pOverlapped->OffsetHigh = (DWORD)(position >> 32);
+        pOverlapped->OffsetHigh = static_cast<DWORD>(position >> 32);
 #else
         pOverlapped->OffsetHigh = 0;
 #endif
@@ -494,9 +494,9 @@ size_t _read_file_async(_In_ streams::details::_file_info_impl *fInfo, _In_ stre
 
     auto pOverlapped = new EXTENDED_OVERLAPPED(_ReadFileCompletionRoutine<streams::details::_file_info_impl>);
     pOverlapped->m_scheduler = scheduler.get();
-    pOverlapped->Offset = (DWORD)offset;
+    pOverlapped->Offset = static_cast<DWORD>(offset);
 #ifdef _WIN64
-    pOverlapped->OffsetHigh = (DWORD)(offset >> 32);
+    pOverlapped->OffsetHigh = static_cast<DWORD>(offset >> 32);
 #else
     pOverlapped->OffsetHigh = 0;
 #endif

Release/tests/Functional/streams/fstreambuf_tests.cpp

@@ -974,7 +974,7 @@ TEST(read_one_byte_at_4G)
 // since casablanca does not use sparse file apis we're not doing the reverse test (write one byte at 4Gb and verify with std apis)
 // because the file created would be too big
 #endif
-#else
+#elif defined(__x86_64__)
 
 struct TidyStream
 {