Q_GLOBAL_STATIC is reentrance now?

[sabrog]

I read "before ":http://qt.gitorious.org/qt/pages/CodingConventions what macros Q_GLOBAL_STATIC is NOT reentrant, but i don't know what year this convention will be written. How about now? This macros have atomic pointer (QBasicAtomicPointer) and used everywhere in Qt sources.

[ogoffart]

Q_GLOBAL_STATIC is re-entrant and thread safe.

Note however that the constructor of your object might be called several time (from different threads (but the extra objects are destroyed quickly)

[rmorrison100]

Thank you Olivier for the explanation.