[boost] is_nan

From: jvd (vygis_d_at_[hidden])
Date: 2003-07-04 06:34:05

Dear boosters,

seems like this code

    template< typename T >
    bool is_nan( const T& v )
    {
        return std::numeric_limits<T>::has_quiet_NaN && (v != v);
    }

does not work correctly on some machines.

As far, as I can remember, intervals library also use similar implementation
of is_nan. So there should be just the same problem.

Respect,
Justinas V.D.