diff options
Diffstat (limited to 'src/corelib/thread/qatomic.cpp')
| -rw-r--r-- | src/corelib/thread/qatomic.cpp | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/corelib/thread/qatomic.cpp b/src/corelib/thread/qatomic.cpp index f70b58d25b..36cdfdb369 100644 --- a/src/corelib/thread/qatomic.cpp +++ b/src/corelib/thread/qatomic.cpp @@ -72,9 +72,10 @@ \li 32-bit: int, unsigned int, qint32, quint32, char32_t (C++11) \li 64-bit: long long, unsigned long long, qint64, quint64 \li platform-specific size: long, unsigned long + \li pointer size: qintptr, quintptr, qptrdiff \endlist - Of the list above, only the 32-bit-sized instantiations are guaranteed to + Of the list above, only the 32-bit- and pointer-sized instantiations are guaranteed to work on all platforms. Support for other sizes depends on the compiler and processor architecture the code is being compiled for. To test whether the other types are supported, check the macro \c Q_ATOMIC_INT\e{nn}_IS_SUPPORTED, @@ -1213,3 +1214,16 @@ #ifndef Q_ATOMIC_INT32_IS_SUPPORTED # error "Q_ATOMIC_INT32_IS_SUPPORTED must be defined" #endif +#if !defined(Q_ATOMIC_INT64_IS_SUPPORTED) && QT_POINTER_SIZE == 8 +// 64-bit platform +# error "Q_ATOMIC_INT64_IS_SUPPORTED must be defined on a 64-bit platform" +#endif + +QT_BEGIN_NAMESPACE + +// The following three specializations must always be defined +Q_STATIC_ASSERT(sizeof(QAtomicInteger<unsigned>)); +Q_STATIC_ASSERT(sizeof(QAtomicInteger<quintptr>)); +Q_STATIC_ASSERT(sizeof(QAtomicInteger<qptrdiff>)); + +QT_END_NAMESPACE |