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1 | // |
2 | // atomic_count_test2.cpp | |
3 | // | |
4 | // Copyright 2009 Peter Dimov | |
5 | // | |
6 | // Distributed under the Boost Software License, Version 1.0. | |
7 | // See accompanying file LICENSE_1_0.txt or copy at | |
8 | // http://www.boost.org/LICENSE_1_0.txt | |
9 | // | |
10 | ||
11 | #include <boost/detail/atomic_count.hpp> | |
f67539c2 | 12 | #include <boost/core/lightweight_test.hpp> |
7c673cae FG |
13 | |
14 | int main() | |
15 | { | |
16 | boost::detail::atomic_count n( 4 ); | |
17 | ||
18 | BOOST_TEST( n == 4 ); | |
19 | ||
20 | BOOST_TEST( ++n == 5 ); | |
21 | BOOST_TEST( ++n == 6 ); | |
22 | ||
23 | BOOST_TEST( n == 6 ); | |
24 | ||
25 | BOOST_TEST( --n == 5 ); | |
26 | BOOST_TEST( --n == 4 ); | |
27 | ||
28 | BOOST_TEST( n == 4 ); | |
29 | ||
30 | boost::detail::atomic_count m( 0 ); | |
31 | ||
32 | BOOST_TEST( m == 0 ); | |
33 | ||
34 | BOOST_TEST( ++m == 1 ); | |
35 | BOOST_TEST( ++m == 2 ); | |
36 | ||
37 | BOOST_TEST( m == 2 ); | |
38 | ||
39 | BOOST_TEST( --m == 1 ); | |
40 | BOOST_TEST( --m == 0 ); | |
41 | ||
42 | BOOST_TEST( m == 0 ); | |
43 | ||
44 | BOOST_TEST( --m == -1 ); | |
45 | BOOST_TEST( --m == -2 ); | |
46 | ||
47 | BOOST_TEST( m == -2 ); | |
48 | ||
49 | BOOST_TEST( ++m == -1 ); | |
50 | BOOST_TEST( ++m == 0 ); | |
51 | ||
52 | BOOST_TEST( m == 0 ); | |
53 | ||
54 | return boost::report_errors(); | |
55 | } |