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

Question

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

Answer 1

Usually sizeof(*void) depends on memory bus width (although not necessarily - pre-RISC AS/400 had 48-bit address bus but 64-bit pointers), and int usually is as big as CPU's general-purpose register (there are also exceptions - SGI C used 32-bit ints on 64-bit MIPS).

So there is no guarantee.