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/* @(#)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.

 * ====================================================

 */

#if defined(LIBM_SCCS) && !defined(lint)

static char rcsid[] = "$NetBSD: s_finite.c,v 1.8 1995/05/10 20:47:17 jtc Exp $";

#endif

/*

 * finite(x) returns 1 is x is finite, else 0;

 * no branching!

 */

#include "math.h"

#include "math_private.h"

#ifdef __STDC__

        int finite(double x)

#else

        int finite(x)

        double x;

#endif

{

        int32_t hx;

        GET_HIGH_WORD(hx,x);

        return (int)((u_int32_t)((hx&0x7fffffff)-0x7ff00000)>>31);

}