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/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 com.android.bluetooth.util;
/**
* Utility for parsing numbers in Bluetooth.
*/
public class NumberUtils {
/**
* Convert a byte to unsigned int.
*/
public static int unsignedByteToInt(byte b) {
return b & 0xFF;
}
/**
* Convert a little endian byte array to integer.
*/
public static int littleEndianByteArrayToInt(byte[] bytes) {
int length = bytes.length;
if (length == 0) {
return 0;
}
int result = 0;
for (int i = length - 1; i >= 0; i--) {
int value = unsignedByteToInt(bytes[i]);
result += (value << (i * 8));
}
return result;
}
}
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