Hi Alex, On Mon, Feb 12, 2018 at 06:19:29PM +0200, Alex Lyakas wrote: > Can you confirm then, that despite returning a 64-bit value, the result > will never actually cross the maximal 32-bit value? Can you perhaps point > us at gcc code, so that we can try to ensure that? Documentation says it should not. I would assume GCC implements this correctly. I don't know where in the code this is handled (if at all, the generated machine instruction should have that property, there is nothing the compiler needs to do extra). Segher
