copysign, copysignf, copysignl - copy sign

Syntax	#include <math.h> C11 double copysign(double x, double y); float copysignf (float x, float y); long double copysignl (long double x, long double y); (Ende)
Description	These functions return the value of x with the sign of y.
Return val.	|x|                   if y >= 0 -|x|                  if y < 0
See also	fabs(), signbit(), math.h.