Re: double free error in gawk

[Andrew J. Schorr]

On Thu, Jul 02, 2020 at 12:30:14PM -0600, arnold@skeeve.com wrote:
> You are asking hard questions. 

That's why you pay me the big bucks -- to ask the tough questions. :-)

> The code predates MPFR, which is
> the main problem. You want to keep most of the flags, such as
> NUMCUR and the non-MPFR numeric value if you've got it.

Agreed.

> It's at least STRING|STRCUR.  And NUMCUR if you've got it, 'cause
> why not?  I'd have to review the other flags to see what makes
> sense.
> 
> Hmm, if MP* flags were set, then I should clear NUMCUR too.  Yech.

Makes sense.

I'm just wondering about USER_INPUT, but I think it's probably OK to
copy that value as well, since it should be left on for numeric strings
and cleared only if it's non-numeric.

> One day I'll rewrite this in nicely object oriented C++ and it'll
> get cleaner.  Maybe after we get World Peace.

Ha. I'm sure we all have bigger priorities than rewriting gawk.

Regards,
Andy