cc [ flag ... ] file ... -lm [ library ... ] #include <math.h>
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:
attributes(5)
