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  #if defined(LIBM_SCCS) && !defined(lint)
14  static char rcsid[] = "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $";
15  #endif
16  
17  /*
18   * fabs(x) returns the absolute value of x.
19   */
20  
21  #include "math.h"
22  #include "mathP.h"
23  
24  #ifdef __STDC__
25  	double fabs(double x)
26  #else
27  	double fabs(x)
28  	double x;
29  #endif
30  {
31  	u_int32_t high;
32  	GET_HIGH_WORD(high,x);
33  	SET_HIGH_WORD(x,high&0x7fffffff);
34          return x;
35  }