1/*
2 * Copyright (C) 2011 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
17package com.android.dex.util;
18
19/**
20 * Unsigned arithmetic over Java's signed types.
21 */
22public final class Unsigned {
23    private Unsigned() {}
24
25    public static int compare(short ushortA, short ushortB) {
26        if (ushortA == ushortB) {
27            return 0;
28        }
29        int a = ushortA & 0xFFFF;
30        int b = ushortB & 0xFFFF;
31        return a < b ? -1 : 1;
32    }
33
34    public static int compare(int uintA, int uintB) {
35        if (uintA == uintB) {
36            return 0;
37        }
38        long a = uintA & 0xFFFFFFFFL;
39        long b = uintB & 0xFFFFFFFFL;
40        return a < b ? -1 : 1;
41    }
42}
43