Performs number manipulation.
#include <math.h> double copysign (x, y) double x, double y; float copysignf (x, y) float x, float y; long double copysignl (x, y) long double x, long double y;
The copysign, copysignf, and copysignl subroutines produce a value with the magnitude of x and the sign of y.
| x | Specifies the magnitude. |
| y | Specifies the sign. |
Upon successful completion, the copysign, copysignf and copysignl subroutines return a value with a magnitude of x and a sign of y.
signbit in AIX 5L Version 5.2 Technical Reference: Base Operating System and Extensions Volume 2.
math.h in AIX 5L Version 5.2 Files Reference.