Hi, On 14 July 2015 at 00:22, Matt Turner <matts...@gmail.com> wrote: but it's not really > useful in general because float arguments are always cast to double > when passed as arguments to varargs functions like printf (why?), and > it warns about that, generating a lot of noise.
It might shock you to learn that the answer is awful historical reasons. Or maybe not. Some types undergo unconditional promotion, similar to pre-prototype functions, when used in vararg calls: float is promoted to double, and char/short are promoted to int. http://c-faq.com/~scs/cgi-bin/faqcat.cgi?sec=ansi#argpromos Cheers, Daniel _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
