[shultays]

Op probably means cpp, where it is indeed undefined behavior. not sure about c. I doubt that if this would cause a "my game does not work on XXX" though. Is there really a compiler out there that will handle such abuse differently?

[midjji]

yes its undefined behaviour in both C and C++. Yes, a number of compilers treat this differently, its also poorly supported on custom hardware using standard compilers like gcc. So compiling for some mobile device with slightly custom ... good luck.

[bruce343434]

It is not undefined behavior in C. And the OP was about C.

[bruce343434]

I don't mean cpp