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-rw-r--r--lib/Object/COFFObjectFile.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Object/COFFObjectFile.cpp b/lib/Object/COFFObjectFile.cpp
index b60a2da..b0b84fc 100644
--- a/lib/Object/COFFObjectFile.cpp
+++ b/lib/Object/COFFObjectFile.cpp
@@ -269,7 +269,7 @@ error_code COFFObjectFile::getSymbolNMTypeChar(DataRefImpl Symb,
}
if (symb->StorageClass == COFF::IMAGE_SYM_CLASS_EXTERNAL)
- ret = ::toupper(ret);
+ ret = ::toupper(static_cast<unsigned char>(ret));
Result = ret;
return object_error::success;