SDL  2.0
s_fabs.c
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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_libm.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)