C++ static data members initialization

Question

1) Is it true that static data members of classes always get initialized before main() called?

2) Is it true that \"static initialization order fiasco\" can happen if st

Answer 1

Yes to both answers.

see https://isocpp.org/wiki/faq/ctors#static-init-order for a good description of it.

Answer 2

1) Is it true that static data members of classes always get initialized before main() called?

yes they would always be initialized before program starts executing.

2) Is it true that "static initialization order fiasco" can happen if static data member of class initialization code uses global static variable of other translation unit?

Yes, along with this it also happens for every other thing which is initialized before main() execution.