cc68a136 |
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 "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 | u_int32_t high; |
32 | GET_HIGH_WORD(high,x); |
33 | SET_HIGH_WORD(x,high&0x7fffffff); |
34 | return x; |
35 | } |