------- Additional Comments From ghazi at gcc dot gnu dot org 2005-06-09 19:48 ------- (In reply to comment #19) > Subject: Re: GCC should combine adjacent stdio calls > On Thu, Jun 09, 2005 at 07:29:42PM -0000, joseph at codesourcery dot com wrote: > > that function on the particular implementation > > having a macro expansion without a function call. > > > Sorry, you lost me here.
I think he means if you call e.g. putc() in between two printf calls, putc may be a macro which does something like this: (--(p)->_cnt < 0 ? __flsbuf((x), (p)) : (int)(*(p)->_ptr++ = (unsigned char) (x))) But in this case, I believe this expansion will not allow printfs to move across it due to the side effects of __flsbuf(). -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21982
