Function scalbn

include/half.hpp:4174–4174

Multiply by power of two. This function is exact to rounding for all rounding modes. See also:** Documentation for [std::scalbn](https://en.cppreference.com/w/cpp/numeric/math/scalbn). \param arg number to modify \param exp power of two to multiply with \return \a arg multplied by 2 raised to \a exp \exception FE_INVALID for signaling NaN \exception FE_OVERFLOW, ...UNDERFLOW, ...INEXACT according

	/// \exception FE_INVALID for signaling NaN
	/// \exception FE_OVERFLOW, ...UNDERFLOW, ...INEXACT according to rounding
	inline half scalbn(half arg, int exp) { return scalbln(arg, exp); }

	/// Multiply by power of two.
	/// This function is exact to rounding for all rounding modes.