From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- src/main/java/org/traccar/helper/BitUtil.java | 51 +++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/main/java/org/traccar/helper/BitUtil.java (limited to 'src/main/java/org/traccar/helper/BitUtil.java') diff --git a/src/main/java/org/traccar/helper/BitUtil.java b/src/main/java/org/traccar/helper/BitUtil.java new file mode 100644 index 000000000..b6108edff --- /dev/null +++ b/src/main/java/org/traccar/helper/BitUtil.java @@ -0,0 +1,51 @@ +/* + * Copyright 2015 Anton Tananaev (anton@traccar.org) + * + * 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; + +public final class BitUtil { + + private BitUtil() { + } + + public static boolean check(long number, int index) { + return (number & (1 << index)) != 0; + } + + public static int between(int number, int from, int to) { + return (number >> from) & ((1 << to - from) - 1); + } + + public static int from(int number, int from) { + return number >> from; + } + + public static int to(int number, int to) { + return between(number, 0, to); + } + + public static long between(long number, int from, int to) { + return (number >> from) & ((1L << to - from) - 1L); + } + + public static long from(long number, int from) { + return number >> from; + } + + public static long to(long number, int to) { + return between(number, 0, to); + } + +} -- cgit v1.2.3