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| author | Aaron Ballman <aaron@aaronballman.com> | 2019-08-15 18:35:44 +0000 |
|---|---|---|
| committer | Aaron Ballman <aaron@aaronballman.com> | 2019-08-15 18:35:44 +0000 |
| commit | 2ed4573e8f8619dc67647256ac070bf91f461392 (patch) | |
| tree | 4ebec17cb673b7f46a82af3d2c0af5a72885a1ec /clang/test/Preprocessor/has_c_attribute.c | |
| parent | 00782a4b68c71b9fb80b403b13f9ec67f07a87a4 (diff) | |
| download | bcm5719-llvm-2ed4573e8f8619dc67647256ac070bf91f461392.tar.gz bcm5719-llvm-2ed4573e8f8619dc67647256ac070bf91f461392.zip | |
Allow standards-based attributes to have leading and trailing underscores.
This gives library implementers a way to use standards-based attributes that do not conflict with user-defined macros of the same name. Attributes in C2x require this behavior normatively (C2x 6.7.11p4), but there's no reason to not have the same behavior in C++, especially given that such attributes may be used by a C library consumed by a C++ compilation.
llvm-svn: 369033
Diffstat (limited to 'clang/test/Preprocessor/has_c_attribute.c')
| -rw-r--r-- | clang/test/Preprocessor/has_c_attribute.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/has_c_attribute.c b/clang/test/Preprocessor/has_c_attribute.c index dc22da7e4cd..843a67a2646 100644 --- a/clang/test/Preprocessor/has_c_attribute.c +++ b/clang/test/Preprocessor/has_c_attribute.c @@ -10,3 +10,7 @@ int does_not_have_selectany(); #endif +// CHECK: has_nodiscard_underscore +#if __has_c_attribute(__nodiscard__) + int has_nodiscard_underscore(); +#endif |
