From: Hans-Bernhard Broeker Newsgroups: comp.os.msdos.djgpp Subject: Re: Bug in gcc or in my install ? Date: 8 May 2001 13:13:53 GMT Organization: Aachen University of Technology (RWTH) Lines: 18 Message-ID: <9d8reh$pes$1@nets3.rz.RWTH-Aachen.DE> References: <20010508123935 DOT 685 DOT qmail AT web6304 DOT mail DOT yahoo DOT com> NNTP-Posting-Host: acp3bf.physik.rwth-aachen.de X-Trace: nets3.rz.RWTH-Aachen.DE 989327633 26076 137.226.32.75 (8 May 2001 13:13:53 GMT) X-Complaints-To: abuse AT rwth-aachen DOT de NNTP-Posting-Date: 8 May 2001 13:13:53 GMT Originator: broeker@ To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com Florent Georges wrote: > In a first time, I prefer to think that it's a bug in my install, > instead in gcc, but it's quite strange. Neither of these. It's a usage error. The function you're using, nextafterf(), is not in the ANSI standardized subset of library functions, and thus its declaration is turned invisible in gcc -ansi mode. Adding -O2 -Wall flags to your compile line would have given you a hint in that direction, warning about an "implicit declaration of function `nextafterf'". I.e.: this program of yours cannot be compiled by a strict ANSI C compiler like 'gcc -ansi'. -- Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de) Even if all the snow were burnt, ashes would remain.