Re: [boost] Optimized portable isnan, isfinite, fpclassify etc

From: Johan Råde (rade_at_[hidden])
Date: 2006-11-13 09:37:08

Johan Råde wrote:
> Version 15 has been uploaded to the vault.

John,

There are some problems with version 15.
Don't bother to run any tests.

I did some tests with VC6.5:

   qnan == qnan is false
   snan == snan is true
   qnan == inf  is false
   qnan == -inf is false
   snan == inf  is false
   snan == -inf is true

std::numeric_limits<T>::signaling_NaN() does return negative infinity.

--Johan