Am 2014-05-15 01:14, schrieb Thiago Macieira: > On all currently-supported platforms, it will wrap around to INT_MIN and start > generating negative numbers from there until -1, and then go to zero.
I think about two years ago I had an issue with QAtomicInt on Solaris SPARC, where it entered an endless loop after wrapping around. But I just saw that Solaris isn't supported anymore in Qt 5.x (and we also gave up support for it), so I guess it should be fine. >> I am aware that for regular non-atomic ints, this would be undefined >> behaviour, whereas unsigned ints are defined to wrap around. I would prefer >> the wrap-around behaviour for my atomic value. > > Then use QAtomicInteger<unsigned>. That is guaranteed to exist and work on all > platforms. If you need a larger address space, use QAtomicInteger<quintptr> or > check if Q_ATOMIC_INT64_IS_SUPPORTED is defined. But QAtomicInteger is only available in 5.3, right? We are currently switching to 5.2, and I saw a QBasicAtomicInteger template there, but it's not in the documentation. Can I use that? _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest