pickle broken: can't handle NaN or Infinity under win32

Grant Edwards grante at visi.com
Thu Jun 23 04:53:23 CEST 2005


On 2005-06-22, Paul Rubin <http> wrote:

>>> Negative 0 isn't a NaN, it's just negative 0.
>>
>> Right, but it is hard to construct in standard C.
>
> Huh?  It's just a hex constant.

Yup.  There are two ways to construct a NaN.  One is to do
something like (1e300*1e300)/(1e300*1e300) and hope for the
best.  The other is to assume IEEE 754 just use 7f800000 or
7fc00000 depending on whether you want a signalling or quiet
NaN.

-- 
Grant Edwards                   grante             Yow!  Don't hit me!! I'm in
                                  at               the Twilight Zone!!!
                               visi.com            



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