diff options
author | Liang Qi <liang.qi@qt.io> | 2016-06-13 09:01:02 +0200 |
---|---|---|
committer | Liang Qi <liang.qi@qt.io> | 2016-06-13 12:46:46 +0200 |
commit | 511790fd1af1e2886a0e2e8dd4308099705cd815 (patch) | |
tree | b42aee537a6103cd064f9f41ae2889b09b79fd23 /src/corelib/global/qendian.h | |
parent | 1542d8881fc5ccbc5918cd4acbe4091ebbd24508 (diff) | |
parent | cbe332405aa22257d432f1797b325f5e57007c20 (diff) |
Merge remote-tracking branch 'origin/5.7' into dev
Conflicts:
config_help.txt
configure
mkspecs/features/uikit/sdk.prf
src/corelib/global/qhooks.cpp
src/corelib/io/qfilesystemwatcher.cpp
src/corelib/io/qlockfile_unix.cpp
src/corelib/tools/qalgorithms.h
src/gui/kernel/qwindowsysteminterface.h
src/gui/text/qtextdocument_p.cpp
src/network/access/access.pri
src/network/access/qnetworkaccessmanager.cpp
src/network/access/qnetworkreplynsurlconnectionimpl.mm
src/src.pro
src/testlib/qtestcase.cpp
src/widgets/kernel/qwidgetbackingstore_p.h
src/widgets/styles/qwindowscestyle.cpp
src/widgets/styles/qwindowsmobilestyle.cpp
tests/auto/corelib/io/qdiriterator/qdiriterator.pro
tests/auto/corelib/io/qfileinfo/qfileinfo.pro
tests/auto/gui/kernel/qwindow/BLACKLIST
tests/auto/widgets/dialogs/qfilesystemmodel/tst_qfilesystemmodel.cpp
tools/configure/configureapp.cpp
Change-Id: Ibf7fb9c8cf263a810ade82f821345d0725c57c67
Diffstat (limited to 'src/corelib/global/qendian.h')
-rw-r--r-- | src/corelib/global/qendian.h | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/src/corelib/global/qendian.h b/src/corelib/global/qendian.h index c5ff82c10a..34bb015a2f 100644 --- a/src/corelib/global/qendian.h +++ b/src/corelib/global/qendian.h @@ -49,6 +49,11 @@ QT_BEGIN_NAMESPACE +#ifdef __has_builtin +# define QT_HAS_BUILTIN(x) __has_builtin(x) +#else +# define QT_HAS_BUILTIN(x) 0 +#endif /* * ENDIAN FUNCTIONS @@ -71,18 +76,29 @@ template <typename T> inline void qbswap(const T src, uchar *dest) // Used to implement a type-safe and alignment-safe copy operation // If you want to avoid the memcpy, you must write specializations for these functions -template <typename T> inline void qToUnaligned(const T src, uchar *dest) +template <typename T> Q_ALWAYS_INLINE void qToUnaligned(const T src, uchar *dest) { // Using sizeof(T) inside memcpy function produces internal compiler error with // MSVC2008/ARM in tst_endian -> use extra indirection to resolve size of T. const size_t size = sizeof(T); - memcpy(dest, &src, size); +#if QT_HAS_BUILTIN(__builtin_memcpy) + __builtin_memcpy +#else + memcpy +#endif + (dest, &src, size); } -template <typename T> inline T qFromUnaligned(const uchar *src) + +template <typename T> Q_ALWAYS_INLINE T qFromUnaligned(const uchar *src) { T dest; const size_t size = sizeof(T); - memcpy(&dest, src, size); +#if QT_HAS_BUILTIN(__builtin_memcpy) + __builtin_memcpy +#else + memcpy +#endif + (&dest, src, size); return dest; } |