> -----Original Message----- > From: gcc-ow...@gcc.gnu.org [mailto:gcc-ow...@gcc.gnu.org] On Behalf > Of Thomas Preud'homme > Sent: Saturday, August 30, 2014 12:27 PM > Mmmh indeed. I checked C99 and section 7.1.3 paragraph 1 third clause > states: > > "All identifiers that begin with an underscore and either an uppercase letter > or > another underscore are always reserved for any use." > > Next clause express how single underscore not followed by a capital letter > is > reserved: > > "All identifiers that begin with an underscore are always reserved for use as > identifiers > with file scope in both the ordinary and tag name spaces." > > Since here we are talking about linkage, _printf_float is not safe according > to the > standard.
Sorry for restating what Eric Blake already said, I didn't see his message at first as it was (surprisingly) classified as spam. Best regards, Thomas