Function isnan

include/half.hpp:4359–4359

Check for NaN. See also:** Documentation for [std::isnan](https://en.cppreference.com/w/cpp/numeric/math/isnan). \param arg number to check \retval true for NaNs \retval false else

	/// \retval true for NaNs
	/// \retval false else
	inline HALF_CONSTEXPR bool isnan(half arg) { return (arg.data_&0x7FFF) > 0x7C00; }

	/// Check if normal number.
	/// **See also:** Documentation for [std::isnormal](https://en.cppreference.com/w/cpp/numeric/math/isnormal).