[Boost-users] isnan stopped working

Subject: [Boost-users] isnan stopped working
From: Thijs Koerselman (thijskoerselman_at_[hidden])
Date: 2009-01-04 17:11:51

isnan() and family seems to have stopped working in my code. The only thing
I can remember is updating from 1.36 to 1.37. Any idea why the following
wouldn't work?

float nan = FP_NAN;
int ret = 0xdeadbeef;
ret = (boost::math::isnan)(nan);

isnan never returns anything. The value of ret is still 0xdeadbeef after
invoking isnan()

I'm on OSX10.5.6 using XCode 3 if that helps.

Thijs