MHO_CheckForNaN.hh

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#ifndef MHO_CheckForNaN_HH__
#define MHO_CheckForNaN_HH__
 
#include <cmath>
#include <complex>
 
namespace hops
{
 
template< typename XNumericalType > class MHO_CheckForNaN
{
    public:
        MHO_CheckForNaN();
        virtual ~MHO_CheckForNaN();
 
        static bool isnan(XNumericalType value) { return value != value; }
 
    private:
};
 
//overloads for numerical types
 
template<> inline bool MHO_CheckForNaN< float >::isnan(float value)
{
    return std::isnan(value);
}
 
template<> inline bool MHO_CheckForNaN< double >::isnan(double value)
{
    return std::isnan(value);
}
 
template<> inline bool MHO_CheckForNaN< long double >::isnan(long double value)
{
    return std::isnan(value);
}
 
template<> inline bool MHO_CheckForNaN< std::complex< float > >::isnan(std::complex< float > value)
{
    return std::isnan(value.real()) || std::isnan(value.imag());
}
 
template<> inline bool MHO_CheckForNaN< std::complex< double > >::isnan(std::complex< double > value)
{
    return std::isnan(value.real()) || std::isnan(value.imag());
}
 
template<> inline bool MHO_CheckForNaN< std::complex< long double > >::isnan(std::complex< long double > value)
{
    return std::isnan(value.real()) || std::isnan(value.imag());
}
 
} // namespace hops
 
#endif