sizeof (int) == sizeof (void*)?

Question

Is there an integer type with the same size as pointer? Guaranteed on all microarchitectures?

Answer 1

According to this Wikipedia page, in C99 your stdint.h header might declare intptr_t and uintptr_t, but then that of course requires

• C99
• A compiler implementor which has chosen to implement this optional part of the standard

So in general I think this one is tough.