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Re: strerror(0) POSIX compliance
On Thu, 24 Mar 2016 14:29:39 +0000 (UTC)
mlelstv%serpens.de@localhost (Michael van Elst) wrote:
> >(I agree that calling strerror(0) is odd and a likely sign of a bug,
> >but that's separate from complying with standards when compliance
> >isn't harmful.)
> Well, if calling strerror(0) is a bug, then usually because it's
> called after an error condition that didn't set errno.
Has that happened to you? I feel sure that's never happened to me, but
maybe I'm less adventurous.
IMO it's incorrect to say 0 is an "undefined error". It's defined as
success by nearly every syscall. The emitted string should reflect
that, even if [sic] Posix says so. Perhaps,
Success: it is not an error to call strerror with 0.
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