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

From: John Maddock (john_at_[hidden])
Date: 2006-10-11 05:08:54

Johan Råde wrote:
>> Here is a new version, with a pinch of paranoia added.
>> There are no floating point comparisons at all,
>> except for a few == 0 and != 0.
>> Therefore I expect it to be immune against optimizing compilers.
>>
>> (I have added a cpp file to avoid ODR violations.
>> It may eventually be possible to remove the cpp file,
>> if we can turn the constants into compile time constants.
>> I bit of ifdef logic will be needed for that.)
>>
>> (This version does not undefine any macros either.)

It works for Intel/Win32, I haven't been able to build it on either HP or 
with Intel/Linux due to endless compiler errors inside the system's math.h.

I haven't had a chance yet to see what might be wrong.

John.