On Tue, Jan 10, 2012 at 02:43:29PM -0800, Doug Barton wrote: > On 01/10/2012 14:39, Pawel Jakub Dawidek wrote: > > For functions that return -1 on failure check exactly for -1 and not for > > any negative number. > > what is the likelihood that at some point in the future the semantics > for those functions will change, such that more than one negative value > may be returned?
This is of course just being extra careful, but what if the function will start returning negative values different than -1 on success? This works in both direction, but is really only theory. All in all, the manual pages now clearly state that those functions return -1 on failure. -- Pawel Jakub Dawidek http://www.wheelsystems.com FreeBSD committer http://www.FreeBSD.org Am I Evil? Yes, I Am! http://yomoli.com
pgpa38XgrZxH9.pgp
Description: PGP signature
