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/*
* Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
*
* 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.traccar.helper;
/**
* Useful functions to work with bits
*/
public class BitUtil {
public static boolean check(long number, int index) {
return (number & (1 << index)) != 0;
}
public static int range(int number, int index) {
return number >> index;
}
public static int range(int number, int index, int length) {
return (number >> index) & ((1 << length) - 1);
}
public static long range(long number, int index) {
return number >> index;
}
public static long range(long number, int index, int length) {
return (number >> index) & ((1L << length) - 1);
}
}
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