copysign(3M) Mathematical Library Functions copysign(3M)
NAME
copysign, copysignf, copysignl - number manipulation function
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <math.h>
double copysign(double x, double y);
float copysignf(float x, float y);
long double copysignl(long double x, long double y);
DESCRIPTION
These functions produce a value with the magnitude of x and the sign of y.
RETURN VALUES
Upon successful completion, these functions return a value with the magnitude of x and the sign of y.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
math.h(3HEAD), signbit(3M),attributes(5), standards(5)
SunOS 5.11 12 Jul 2006 copysign(3M)
