_ _CPYSEF Intrinsic

The _ _CPYSEF intrinsic has the following declaration:

float __CPYSEF(float, float);

This intrinsic function returns the single-precision result of extracting the sign and exponent of the first argument and concatenating the fraction bits from the second argument. This has the effect that the result has the same sign and exponent as the first argument, but with the fractional portion of the second argument.