1 /*
2  * Copyright (C) 2013 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 public class Main {
18     static final long NUM_ITERATIONS = 50000;
19     static volatile double negInfinity = Double.NEGATIVE_INFINITY;
20 
main(String args[])21     public static void main(String args[]) {
22         test1();
23         test2();
24         test3();
25     }
26 
test1()27     public static void test1() {
28 
29         long sumInf = 0;
30         long sumRes = 0;
31 
32         for (long i = 0 ; i < NUM_ITERATIONS ; i++) {
33             //Every second iteration, sumInf becomes 0
34             sumInf += (long) negInfinity;
35 
36             //Some extra work for compilers to make this
37             //loop seem important
38             if (sumInf == Long.MIN_VALUE) {
39                 sumRes++;
40             }
41         }
42 
43         if (sumRes == NUM_ITERATIONS / 2) {
44             System.out.println("Iteration Result is as expected");
45         } else {
46             System.out.println("Conversions failed over " + NUM_ITERATIONS + " iterations");
47         }
48     }
49 
test2()50     public static void test2() {
51         long a = 1L;
52         long b = 2L;
53 
54         float inter3 = a;
55         float inter4 = b;
56         System.out.println("inter4:" + inter4);
57     }
58 
test3()59     public static void test3() {
60         double d = Long.MAX_VALUE;
61         System.out.println("max_long:" + (long)d);
62     }
63 
64 }
65