compiler/mlib/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 #ifndef lint
  14 static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_fabs.c,v 1.5 1999/08/28 00:06:47 peter Exp $";
  15 #endif
  16
  17 /*
  18  * fabs(x) returns the absolute value of x.
  19  */
  20
  21 #include "math.h"
  22 #include "math_private.h"
  23
  24 #ifdef __STDC__
  25         double fabs(double x)
  26 #else
  27         double fabs(x)
  28         double x;
  29 #endif
  30 {
  31         uint32_t high;
  32         GET_HIGH_WORD(high,x);
  33         SET_HIGH_WORD(x,high&0x7fffffff);
  34         return x;
  35 }