Re: [bug-gawk] Overflow to Infinity

[Arnold Robbins]

Hello all.

> From: Arnold Robbins <address@hidden>
> Message-Id: <address@hidden>
> Date: Fri, 06 Jul 2018 10:28:57 +0300
> To: address@hidden, address@hidden
> Subject: Re: [bug-gawk] Overflow to Infinity
> Cc: address@hidden, address@hidden
>
> > Issue #2 is that gawk can print "inf", which means it can output stuff
> > that it can't read back later:
> >
> >     $ gawk 'BEGIN { print 2+2, -log(0) }'
> >     4 inf
> >
> > It is this latter issue that I am choosing to not deal with at the moment.
>
> I have finally dealt with it.  This is the patch I'd like to
> push shortly.
>
> Andy - if you have a few minutes, please review. I think it solves the
> output problem. (Grrrr. I forgot to update the doc. Darn!!!)
> (Double Grrrr. I need to deal with MPFR values for this case, too.)

I have pushed fixes that handle MPFR and include doc updates. It was
somewhat more involved than I expected.

I am working on changing comparison (==, !=, etc.) such that for NaN
and INF values gawk will behave like C.  I hope this will be done
within another week or so.  This will NOT affect array sorting, whereby
NaN values will continue to compare equal to each other.

Thanks,

Arnold