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(5) for descriptions of the following attributes:
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