COPYSIGN(3M) Mathematical Library Functions COPYSIGN(3M)
copysign, copysignf, copysignl - number manipulation function
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);
These functions produce a value with the magnitude of x and the sign
of y.
Upon successful completion, these functions return a value with the
magnitude of x and the sign of y.
No errors are defined.
See attributes(7) for descriptions of the following attributes:
+----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+----------------------------+-----------------------------+
|Interface Stability | Standard |
+----------------------------+-----------------------------+
|MT-Level | MT-Safe |
+----------------------------+-----------------------------+
math.h(3HEAD), signbit(3M), attributes(7), standards(7)
SunOS 5.11 July 12, 2006 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(7) 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(7), standards(7)
SunOS 5.11 July 12, 2006 COPYSIGN(3M)