Re: [COMMITTERS] pgsql: Add comments about why errno is set to zero.

On Thu, Dec 01, 2005 at 04:12:30PM -0500, Bruce Momjian wrote:
> Well, there seems to be enough confusion, even in this email list, that
> identifying _why_ errno is being cleared is a good idea.
>
> I modified it to:
>
> errno = 0; /* avoid having to check the result for failure */

I don't know about others but I find that wording ambiguous. Like it's
saying that once you've done that it can't fail. I think I'd prefer
something like:

errno = 0; /* Make error condition detectable */

or even

errno = 0; /* clear pending errors */

or

errno = 0; /* clear prior detected errors */

YMMV,
--
Martijn van Oosterhout <kleptog(at)svana(dot)org> http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.