001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019/**
020 * Implements the CFML Function bitshln
021 */
022package lucee.runtime.functions.math;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.exp.FunctionException;
026import lucee.runtime.ext.function.Function;
027
028public final class BitSHLN implements Function {
029        public static double call(PageContext pc , double dnumber, double dcount) throws FunctionException {
030                int number=(int) dnumber,count=(int) dcount;
031                if(count > 31 || count < 0)
032                        throw new FunctionException(pc,"bitSHLN",2,"count","must be beetween 0 and 31 now "+count);
033                
034                return number << count;
035        }       
036}