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/* @(#)s_ldexp.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_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $";

#endif

#include "math.h"

#include "math_private.h"

#include <errno.h>

#ifdef __STDC__

        double ldexp(double value, int exp)

#else

        double ldexp(value, exp)

        double value; int exp;

#endif

{

        if(!finite(value)||value==0.0) return value;

        value = scalbn(value,exp);

        if(!finite(value)||value==0.0) errno = ERANGE;

        return value;

}