In C++ you could also make an object (per thread?) and use member vars instead of static vars. Also, if you're going to use static vars in multithreaded contex

In C++ you could also make an object (per thread?) and use member vars instead of static vars. Also, if you're going to use static vars in multithreaded contexts doing this, better to write thing = 5; (via that macro magic) than `thing++`. Then at least nothing too bad should happen...