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Actually, now that I think about it. LLVM has an option for thread-safe statics too, even without C++11.

Oops, I missed a static.

In multithreaded environments, it is most common (that I've seen) to call all of the singleton methods in main() before any threads get launched.

That's not a good idea. Singletons should clean themselves up, if you create your singleton on the heap, then you are supposed to delete it.


static Sample & Instance(){
Sample singleton;...