/*
* Copyright 2010 NCHOVY
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.krakenapps.pcap.util;
/**
* @author mindori
*/
public class UnsignedCalc {
private UnsignedCalc() {
}
public static int unsignedConvert(byte byteVal) {
return (int) byteVal & 0x0000ffff;
}
public static int unsignedConvert(short shortVal) {
return (int) shortVal & 0x0000ffff;
}
public static long unsignedConvert(int intVal) {
return (long) intVal & 0x00000000ffffffff;
}
public static int unsignedAdd(short s1, short s2) {
int intVal1 = (int) s1 & 0x0000ffff;
int intVal2 = (int) s2 & 0x0000ffff;
return (intVal1 + intVal2);
}
public static int unsignedAdd(int intVal1, short shortVal) {
int intVal2 = (int) shortVal & 0x0000ffff;
return (intVal1 + intVal2);
}
public static int unsignedAdd(int intVal1, int intVal2) {
return (intVal1 + intVal2);
}
}