opensolaris man page for copysign

copysign(3M)						  Mathematical Library Functions					      copysign(3M)

NAME
       copysign, copysignf, copysignl - number manipulation function

SYNOPSIS
       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);

DESCRIPTION
       These functions produce a value with the magnitude of x and the sign of y.

RETURN VALUES
       Upon successful completion, these functions return a value with the magnitude of x and the sign of y.

ERRORS
       No errors are defined.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       math.h(3HEAD), signbit(3M),attributes(5), standards(5)

SunOS 5.11							    12 Jul 2006 						      copysign(3M)