[libc-commits] [libc] 4c0d805 - [libc] Do not redefine `wchar_t` when compiling in C++ (#110769)

[via libc-commits]

Author: Joseph Huber
Date: 2024-10-01T17:28:42-07:00
New Revision: 4c0d805a54aa7b55ad12684c4fb4413a10992f00

URL: https://github.com/llvm/llvm-project/commit/4c0d805a54aa7b55ad12684c4fb4413a10992f00
DIFF: https://github.com/llvm/llvm-project/commit/4c0d805a54aa7b55ad12684c4fb4413a10992f00.diff

LOG: [libc] Do not redefine `wchar_t` when compiling in C++ (#110769)

Summary:
This is a fundamental type in C++, so we can't redefine it.

Added: 
    

Modified: 
    libc/include/llvm-libc-types/wchar_t.h

Removed: 
    


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diff  --git a/libc/include/llvm-libc-types/wchar_t.h b/libc/include/llvm-libc-types/wchar_t.h
index faa40d96efc4d2..bf2633a1c244bf 100644
--- a/libc/include/llvm-libc-types/wchar_t.h
+++ b/libc/include/llvm-libc-types/wchar_t.h
@@ -9,6 +9,11 @@
 #ifndef LLVM_LIBC_TYPES_WCHAR_T_H
 #define LLVM_LIBC_TYPES_WCHAR_T_H
 
+// wchar_t is a fundamental type in C++.
+#ifndef __cplusplus
+
 typedef __WCHAR_TYPE__ wchar_t;
 
+#endif
+
 #endif // LLVM_LIBC_TYPES_WCHAR_T_H