evaluation order of expressions in gcc

llewelly@xmission.com llewelly@xmission.com
Tue Mar 30 01:33:00 GMT 2004

laura_rand@women-at-work.org writes:

> hi, all
> i could not find an answer to this question on the net so i'm posting it
> here.
> as far as i know, the Ansi C standard does not specify the order of
> evaluation of expression arguments. so if i wrote:
> x = f() + g()
> it would be up to the compiler whether f() or g() would be called
> first.

There is no order you can depend on. It can vary by platform, and
    according to optimization flags.

More information about the Gcc-help mailing list