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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 4.9			 June 5, 2013			 DragonFly 4.9