On Tue, Jul 14, 2015 at 4:32 AM, Daniel Stone <dan...@fooishbar.org> wrote: > 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
Eesh! Thanks for the information. _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
