diff options
| 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/qendian.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/qendian.h')
| -rw-r--r-- | src/corelib/global/qendian.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/src/corelib/global/qendian.h b/src/corelib/global/qendian.h index 2ddefaec8b..dd0e5a7e5a 100644 --- a/src/corelib/global/qendian.h +++ b/src/corelib/global/qendian.h @@ -87,12 +87,6 @@ template <typename T> inline T qFromUnaligned(const uchar *src) */ template <typename T> T qbswap(T source); -#ifdef __has_builtin -# define QT_HAS_BUILTIN(x) __has_builtin(x) -#else -# define QT_HAS_BUILTIN(x) 0 -#endif - // GCC 4.3 implemented all the intrinsics, but the 16-bit one only got implemented in 4.8; // Clang 2.6 implemented the 32- and 64-bit but waited until 3.2 to implement the 16-bit one #if (defined(Q_CC_GNU) && Q_CC_GNU >= 403) || QT_HAS_BUILTIN(__builtin_bswap32) @@ -154,8 +148,6 @@ template <> inline quint16 qbswap<quint16>(quint16 source) } #endif // GCC & Clang intrinsics -#undef QT_HAS_BUILTIN - // signed specializations template <> inline qint64 qbswap<qint64>(qint64 source) { |