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- Subject: Re: PATCH: file:close() return-value for pipes
- From: Roberto Ierusalimschy <roberto@...>
- Date: Mon, 14 Feb 2011 14:35:18 -0200
> On 02/11/2011 02:03 AM, Sam Roberts wrote:
> > Me, I wouldn't do it by putting exit or signal number in the same
> > return position, that seems ripe for confusion. I'd have pclose()
> > return exit status if WIFEXITED, or "nil,signo" if WIFSIGNALLED.
> This seems like a good idea, although note that the first return value
> already uses nil for certain error situations, but these are somewhat
> esoteric and unlikely to occur in a lua program: see
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/pclose.html for
Wouldn't be better if the first result was what happened
("exit" x "signal") and the second result the actual exit code
or signal number?