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 randrange 021 */ 022package lucee.runtime.functions.math; 023 024import lucee.runtime.PageContext; 025import lucee.runtime.exp.ExpressionException; 026import lucee.runtime.ext.function.Function; 027 028public final class RandRange implements Function { 029 public static double call(PageContext pc , double number1, double number2) throws ExpressionException { 030 return call(pc,number1,number2,"cfmx_compat"); 031 } 032 public static double call(PageContext pc , double number1, double number2, String algo) throws ExpressionException { 033 034 int min=(int) number1; 035 int max=(int) number2; 036 037 if(number1>number2) { 038 int tmp=min; 039 min=max; 040 max=tmp; 041 } 042 int diff=max-min; 043 return ((int)(Rand.call(pc,algo)*(diff+1)))+min; 044 } 045 046 public static int invoke(int min, int max) throws ExpressionException { 047 048 if(min>max) { 049 int tmp=min; 050 min=max; 051 max=tmp; 052 } 053 int diff=max-min; 054 return ((int)(Rand.call(null,"cfmx_compat")*(diff+1)))+min; 055 } 056 057 058}