lib/libm/src/s_fabs.c

   1 /* @(#)s_fabs.c 5.1 93/09/24 */
   2 /*
   3  * ====================================================
   4  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
   5  *
   6  * Developed at SunPro, a Sun Microsystems, Inc. business.
   7  * Permission to use, copy, modify, and distribute this
   8  * software is freely granted, provided that this notice
   9  * is preserved.
  10  * ====================================================
  11  */
  12
  13 #include <sys/cdefs.h>
  14 #if defined(LIBM_SCCS) && !defined(lint)
  15 __RCSID("$NetBSD: s_fabs.c,v 1.10 2002/05/26 22:01:55 wiz Exp $");
  16 #endif
  17
  18 /*
  19  * fabs(x) returns the absolute value of x.
  20  */
  21
  22 #include "math.h"
  23 #include "math_private.h"
  24
  25 double
  26 fabs(double x)
  27 {
  28         u_int32_t high;
  29         GET_HIGH_WORD(high,x);
  30         SET_HIGH_WORD(x,high&0x7fffffff);
  31         return x;
  32 }