/* @(#)s_finite.c 5.1 93/09/24 */
/*
 * ====================================================
 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
 *
 * Developed at SunPro, a Sun Microsystems, Inc. business.
 * Permission to use, copy, modify, and distribute this
 * software is freely granted, provided that this notice
 * is preserved.
 * ====================================================
 */

#include <sys/cdefs.h>
#if defined(LIBM_SCCS) && !defined(lint)
__RCSID("$NetBSD: s_finite.c,v 1.13 2024/05/08 01:40:27 riastradh Exp $");
#endif

/*
 * finite(x) returns 1 if x is finite, else 0;
 * no branching!
 */

#include "namespace.h"
#include "math.h"
#include "math_private.h"

__weak_alias(finite, _finite)

int
finite(double x)
{
        int32_t hx;
        GET_HIGH_WORD(hx,x);
        return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);
}