/*

 * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * __ieee754_scalb(x, fn) is provide for

 * passing various standard test suite. One

 * should use scalbn() instead.

 */

#include "fdlibm.h"

#ifdef _SCALB_INT

#ifdef __STDC__

        double __ieee754_scalb(double x, int fn)

#else

        double __ieee754_scalb(x,fn)

        double x; int fn;

#endif

#else

#ifdef __STDC__

        double __ieee754_scalb(double x, double fn)

#else

        double __ieee754_scalb(x,fn)

        double x, fn;

#endif

#endif

{

#ifdef _SCALB_INT

        return scalbn(x,fn);

#else

        if (isnan(x)||isnan(fn)) return x*fn;

        if (!finite(fn)) {

            if(fn>0.0) return x*fn;

            else       return x/(-fn);

        }

        if (rint(fn)!=fn) return (fn-fn)/(fn-fn);

        if ( fn > 65000.0) return scalbn(x, 65000);

        if (-fn > 65000.0) return scalbn(x,-65000);

        return scalbn(x,(int)fn);

#endif

}