/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
**/
package lucee.commons.math;
import java.math.BigDecimal;
import java.math.MathContext;
/**
* Math Util
*/
public final class MathUtil {
/**
* abs
* @param number
* @return abs value
*/
public static double abs(double number) {
return (number <= 0.0D) ? 0.0D - number : number;
}
public static double sgn(double number) {
return number != 0.0d ? number >= 0.0d ? 1 : -1 : 0;
}
public static int nextPowerOf2(int value) {
int result = 1;
while (result < value)
result = result << 1;
return result;
}
public static BigDecimal divide(BigDecimal left, BigDecimal right) {
try {
return left.divide(right,BigDecimal.ROUND_UNNECESSARY);
}
catch (ArithmeticException ex) {
return left.divide(right,MathContext.DECIMAL128);
}
}
public static BigDecimal add(BigDecimal left, BigDecimal right) {
try {
return left.add(right,MathContext.UNLIMITED);
}
catch (ArithmeticException ex) {
return left.add(right,MathContext.DECIMAL128);
}
}
public static BigDecimal subtract(BigDecimal left, BigDecimal right) {
try {
return left.subtract(right,MathContext.UNLIMITED);
}
catch (ArithmeticException ex) {
return left.subtract(right,MathContext.DECIMAL128);
}
}
public static BigDecimal multiply(BigDecimal left, BigDecimal right) {
try {
return left.multiply(right,MathContext.UNLIMITED);
}
catch (ArithmeticException ex) {
return left.multiply(right,MathContext.DECIMAL128);
}
}
}