/* BigIntegers.java
Purpose:
Description:
History:
Fri Sep 19 13:06:48 2003, Created by tomyeh
Copyright (C) 2003 Potix Corporation. All Rights Reserved.
{{IS_RIGHT
This program is distributed under LGPL Version 3.0 in the hope that
it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.math;
import java.math.BigInteger;
import org.zkoss.lang.Objects;
/**
* BigInteger utilities.
*
* @author tomyeh
*/
public class BigIntegers {
/** Represents 0 in big integer.
*/
public static final BigInteger ZERO = BigInteger.ZERO;
/** Converts an integer to a big integer.
*/
public static final BigInteger toBigInteger(int v) {
return v == 0 ? ZERO: new BigInteger(Objects.toByteArray(v));
}
/** Converts a long to a big integer.
*/
public static final BigInteger toBigInteger(long v) {
return v == 0 ? ZERO: new BigInteger(Objects.toByteArray(v));
}
/** Converts a short to a big integer.
*/
public static final BigInteger toBigInteger(short v) {
return v == 0 ? ZERO: new BigInteger(Objects.toByteArray(v));
}
/** Converts a byte to a big integer.
*/
public static final BigInteger toBigInteger(byte v) {
return v == 0 ? ZERO: new BigInteger(Objects.toByteArray(v));
}
/** Converts an integer to a big integer.
*/
public static final BigInteger toBigInteger(Integer v) {
return toBigInteger(v.intValue());
}
/** Converts a long to a big integer.
*/
public static final BigInteger toBigInteger(Long v) {
return toBigInteger(v.longValue());
}
/** Converts a short to a big integer.
*/
public static final BigInteger toBigInteger(Short v) {
return toBigInteger(v.shortValue());
}
/** Converts a byte to a big integer.
*/
public static final BigInteger toBigInteger(Byte v) {
return toBigInteger(v.byteValue());
}
}
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