libm/s_fabs.c

   1 /*
   2  * ====================================================
   3  * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
   4  *
   5  * Developed at SunPro, a Sun Microsystems, Inc. business.
   6  * Permission to use, copy, modify, and distribute this
   7  * software is freely granted, provided that this notice
   8  * is preserved.
   9  * ====================================================
  10  */
  11
  12 /*
  13  * fabs(x) returns the absolute value of x.
  14  */
  15
  16 #include <features.h>
  17 /* Prevent math.h from defining a colliding inline */
  18 #undef __USE_EXTERN_INLINES
  19 #include "math.h"
  20 #include "math_private.h"
  21
  22 double fabs(double x)
  23 {
  24         u_int32_t high;
  25         GET_HIGH_WORD(high,x);
  26         SET_HIGH_WORD(x,high&0x7fffffff);
  27         return x;
  28 }
  29 libm_hidden_def(fabs)