glibc/sysdeps/ieee754/dbl-64/s_fabs.c
2013-10-17 16:03:24 +02:00

37 lines
877 B
C

/* @(#)s_fabs.c 5.1 93/09/24 */
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
#if defined(LIBM_SCCS) && !defined(lint)
static char rcsid[] = "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $";
#endif
/*
* fabs(x) returns the absolute value of x.
*/
#include <math.h>
#include <math_private.h>
double
__fabs (double x)
{
u_int32_t high;
GET_HIGH_WORD (high, x);
SET_HIGH_WORD (x, high & 0x7fffffff);
return x;
}
weak_alias (__fabs, fabs)
#ifdef NO_LONG_DOUBLE
strong_alias (__fabs, __fabsl)
weak_alias (__fabs, fabsl)
#endif