------- Comment #3 from wilson at tuliptree dot org 2008-03-22 02:13 ------- Subject: Re: New: Incorrect printf warning: expect double has float
6yxwfq202 at sneakemail dot com wrote: > foo.c:3: warning: format '%f' expects type 'double', but argument 2 has type > 'float' > I believe this is unnecessary because float is promoted to double in variadic > functions. Small 8/16 bit microprocessors often don't support all FP types. h8300.h has for instance #define FLOAT_TYPE_SIZE 32 #define DOUBLE_TYPE_SIZE 32 So floats and doubles are the same thing, which is probably confusing something in the C front end. Maybe a type conversion got optimized away (folded?) because it was a no-op for instance. I haven't tried to reproduce this. Jim -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35649
