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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.
*/
#define DO_2_TIMES(x) x x
#define DO_4_TIMES(x) DO_2_TIMES(DO_2_TIMES(x))
#define DO_16_TIMES(x) DO_4_TIMES(DO_4_TIMES(x))
#define DO_256_TIMES(x) DO_16_TIMES(DO_16_TIMES(x))
#define DO_512_TIMES(x) DO_256_TIMES(DO_2_TIMES(x))
public class Main {
public static void main(String[] args) {
Main m = new Main();
System.out.println(m.foo(-1, -1));
System.out.println(m.foo(-1, +1));
System.out.println(m.foo(+1, -1));
System.out.println(m.foo(+1, +1));
System.out.println(m.value);
}
public int foo(int a, int b) {
if ( a >= 0 ) {
if ( b < 0 ) {
DO_512_TIMES( synchronized(lock) { value++; } )
return 2;
}
return 1;
}
return 0;
}
Object lock = new Object();
int value = 0;
}
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