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| author | Thiago Macieira <thiago.macieira@intel.com> | 2015-07-01 14:38:22 -0700 |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@intel.com> | 2015-10-16 04:02:24 +0000 |
| commit | 6f298be07681f4038ddd5694d259ef64a574ac6f (patch) | |
| tree | 73c195ab1a7fea67627d63ecc76f8fa4ee43f929 /src/corelib/global/qcompilerdetection.h | |
| parent | 3d52b05a6356fdca1208fe1e77e431cf4b7c79c5 (diff) | |
Add the QT_HAS_xxx macros for post-C++11 feature testing
And for compiler extensions. QT_HAS_BUILTIN and QT_HAS_ATTRIBUTE will
come in handy.
Change-Id: I255870833a024a36adf6ffff13ecf06624bfc1ef
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Diffstat (limited to 'src/corelib/global/qcompilerdetection.h')
| -rw-r--r-- | src/corelib/global/qcompilerdetection.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h index 8595c51368..5a460e04c5 100644 --- a/src/corelib/global/qcompilerdetection.h +++ b/src/corelib/global/qcompilerdetection.h @@ -1110,6 +1110,37 @@ #endif /* + * SG10's SD-6 feature detection and some useful extensions from Clang and GCC + * https://isocpp.org/std/standing-documents/sd-6-sg10-feature-test-recommendations + * http://clang.llvm.org/docs/LanguageExtensions.html#feature-checking-macros + */ +#ifdef __has_builtin +# define QT_HAS_BUILTIN(x) __has_builtin(x) +#else +# define QT_HAS_BUILTIN(x) 0 +#endif +#ifdef __has_attribute +# define QT_HAS_ATTRIBUTE(x) __has_attribute(x) +#else +# define QT_HAS_ATTRIBUTE(x) 0 +#endif +#ifdef __has_cpp_attribute +# define QT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x) +#else +# define QT_HAS_CPP_ATTRIBUTE(x) 0 +#endif +#ifdef __has_include +# define QT_HAS_INCLUDE(x) __has_include(x) +#else +# define QT_HAS_INCLUDE(x) 0 +#endif +#ifdef __has_include_next +# define QT_HAS_INCLUDE_NEXT(x) __has_include_next(x) +#else +# define QT_HAS_INCLUDE_NEXT(x) 0 +#endif + +/* * Warning/diagnostic handling */ |