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 round 021 */ 022package lucee.runtime.functions.math; 023 024import java.math.BigDecimal; 025 026import lucee.runtime.PageContext; 027import lucee.runtime.ext.function.Function; 028 029public final class Round implements Function { 030 031 private static final long serialVersionUID = 3955271203445975609L; 032 033 public static double call(PageContext pc , double number) { 034 return call(pc,number,0); 035 } 036 037 public static double call(PageContext pc, double number, double precision) { 038 if(precision<=0) 039 return StrictMath.round(number); 040 041 BigDecimal bd = new BigDecimal(number); 042 bd = bd.setScale((int)precision, BigDecimal.ROUND_HALF_UP); 043 return bd.doubleValue(); 044 } 045}