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#include <sys/cdefs.h>
14__FBSDID("$FreeBSD$");
15
16/*
17 * finite(x) returns 1 is x is finite, else 0;
18 * no branching!
19 */
20
21#include "math.h"
22#include "math_private.h"
23
24	int finite(double x)
25{
26	int32_t hx;
27	GET_HIGH_WORD(hx,x);
28	return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);
29}
30