NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO
cc [ flag ... ] file ... -lm [ library ... ] #include <math.h>double copysign(double x, double y);
The copysign() function returns a value with the magnitude of x and the sign of y. It produces a NaN with the sign of y if x is a NaN.
The copysign() function returns a value with the magnitude of x and the sign of y.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
MT-Level | MT-Safe |
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO