Re: [boost] [ICL] #6853: boost::icl::contains(NaN) returns true

template<class Float> struct NaNtheLess { bool operator()(Float lhs, Float rhs)const { return tr1::isnan(lhs) ? !tr1::isnan(rhs) : std::less<Float>()(lhs, rhs); } };

...

Hope this solves your problems.

That looks like a great solution, thanks! Perhaps this is useful for simplifying "not_a_date_time" too. NaNtheless, I am a NaN loather ;)

Cheers, Joachim

I find it NaNcomfortable to deal with as well, and I can feel your pain. :-) Cheers! Andrew Hundt