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Eliminate preprocessor warnings due to undefined "__GNUC__" with ClangCL

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When building some code against mimalloc with C inside Visual Studio
with ClangCL, the compiler complains about __GNUC__ being undefined.

Reported by Mojca Miklavec.

Close #422
This commit is contained in:
Jim Huang 2021-06-24 17:29:06 +08:00
parent 076f815cec
commit 4369fe4323
2 changed files with 4 additions and 4 deletions
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2
include/mimalloc.h
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@ -26,7 +26,7 @@ terms of the MIT license. A copy of the license can be found in the file
#if defined(__cplusplus) && (__cplusplus >= 201703)
#define mi_decl_nodiscard [[nodiscard]]
#elif (__GNUC__ >= 4) || defined(__clang__) // includes clang, icc, and clang-cl
#elif (defined(__GNUC__) && (__GNUC__ >= 4)) || defined(__clang__) // includes clang, icc, and clang-cl
#define mi_decl_nodiscard __attribute__((warn_unused_result))
#elif (_MSC_VER >= 1700)
#define mi_decl_nodiscard _Check_return_