Re: gawk number to string bug

[Andrew J. Schorr]

On Wed, Dec 28, 2005 at 03:00:56PM -0500, Andrew J. Schorr wrote:
> It seems that if (2*x == x) catches Inf or -Inf.  So one could perhaps
> say:
> 
>   case 'd':
>     ...
>     if ((tmpval != tmpval) || (2*tmpval == tmpval))
>       goto out_of_range;

Happy New Year!  And just in case anybody still cares, this last
test was invalid, since it mistakenly catches zero.  This test
looks as if it may work (catching only NaN and Inf);

   if ((tmpval != tmpval) || ((2*tmpval == tmpval) && (tmpval != 0)))
      goto out_of_range;

An updated patch is attached, in case anybody is interested. :-)

Regards,
Andy

gawk315.patch
Description: Text document