FreeBSD Manual Pages
COPYSIGN(3) BSD Library Functions Manual COPYSIGN(3) NAME copysign, copysignf, copysignl -- copy sign LIBRARY Math Library (libm, -lm) 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 The copysign(), copysignf() and copysignl() functions return x with its sign changed to y's. SEE ALSO fabs(3), fdim(3), ieee(3), math(3) STANDARDS The copysign(), copysignf(), and copysignl() routines conform to ISO/IEC 9899:1999 ("ISO C99"). They implement the Copysign function recommended by IEEE Std 754-1985. HISTORY The copysign(), copysignf(), and copysignl() functions appeared in 4.3BSD, FreeBSD 2.0, and FreeBSD 5.3, respectively. BSD January 26, 2005 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | SEE ALSO | STANDARDS | HISTORY
Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=copysign&sektion=3&manpath=FreeBSD+12.0-RELEASE+and+Ports>