1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.wifi.util; 18 19 /** 20 * Helper for translating bit-flags packed into an int 21 */ 22 public class BitMask { 23 public int value; 24 BitMask(int value)25 public BitMask(int value) { 26 this.value = value; 27 } 28 29 /** 30 * Clears the specifed bit, returning true if it was set 31 * 32 * @param maskBit to test and clear 33 * @return true if and only if the mask was originally set in value 34 */ testAndClear(int maskBit)35 public boolean testAndClear(int maskBit) { 36 boolean ans = (value & maskBit) != 0; 37 value &= ~maskBit; 38 return ans; 39 } 40 } 41