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Re: [bug-gawk] Gawk and NaN values

From: Aharon Robbins
Subject: Re: [bug-gawk] Gawk and NaN values
Date: Mon, 14 Nov 2011 20:17:05 +0200
User-agent: Heirloom mailx 12.4 7/29/08

Hi. Thanks for the clarification. I think I will add this to the FUTURES
file so that it doesn't get forgotten, and I will try to eventually
make this change.



> Date: Sat, 12 Nov 2011 21:04:00 +0100
> From: Hermann Peifer <address@hidden>
> To: Aharon Robbins <address@hidden>
> CC: address@hidden, address@hidden
> Subject: Re: [bug-gawk] Gawk and NaN values
> On 12/11/2011 20:33, Aharon Robbins wrote:
> > Hi. I've just re-read this discussion again.  It would boil down
> > to gawk having to have special case code to notice that a value
> > is a NaN and then put a leading sign on it in the output.
> Indeed, this is also how I thought about it.
> > This is probably not a major change, but it means more documentation
> > work, and I'm wondering if it's a big issue in practice.
> >
> > Hermann - is this affecting your getting real work done?  Or did you
> > just happen to notice that gawk can output something that it won't
> > accept as the corresponding input?
> >
> It is a bit of everything: first it was affecting some real work, then I 
> invested some time and found out that gawk outputs NaNs, which it 
> doesn't accept as input NaNs. Eventually, I added a workaround into my 
> script (basically adding a leading "+" to all intermediate results).
> In short: not a big issue in (my) practice and you might want to spend 
> your time with fixing more serious issues, and/or taking care of the 
> enhancements listed in the FUTURES file, etc.
> Regards, Hermann

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