1/* @(#)s_finite.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
14static char rcsid[] = "$FreeBSD: src/lib/msun/src/s_finite.c,v 1.8 2003/07/23 04:53:46 peter Exp $";
15#endif
16
17/*
18 * finite(x) returns 1 is x is finite, else 0;
19 * no branching!
20 */
21
22#include "math.h"
23#include "math_private.h"
24
25	int finite(double x)
26{
27	int32_t hx;
28	GET_HIGH_WORD(hx,x);
29	return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);
30}
31