DragonFly On-Line Manual Pages

COPYSIGN(3)	      DragonFly Library Functions Manual	   COPYSIGN(3)

NAME

copysign, copysignf, copysignl -- copy sign

SYNOPSIS

#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

copysign() returns x with its sign changed to y's. The copysignf() func- tion is a single precision version of copysign(). The copysignl() func- tion is an extended precision version of copysign().

SEE ALSO

fabs(3)

STANDARDS

IEEE Std 754-1985

HISTORY

The copysign, copysignf and copysignl functions appeared in 4.3BSD, NetBSD 1.1 and OpenBSD 4.5, respectively. DragonFly 4.3 June 5, 2013 DragonFly 4.3