copysignf(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 Committed MT-Level MT-Safe Standard See standards(5).

See also

math.h(3HEAD), signbit(3M),attributes(5), standards(5)