1 | // Copyright (C) 2011 Tim Blechmann |
2 | // |
3 | // Distributed under the Boost Software License, Version 1.0. (See |
4 | // accompanying file LICENSE_1_0.txt or copy at |
5 | // http://www.boost.org/LICENSE_1_0.txt) |
6 | |
7 | #include <limits> |
8 | |
9 | #include <boost/lockfree/detail/tagged_ptr.hpp> |
10 | |
11 | #define BOOST_TEST_MAIN |
12 | #ifdef BOOST_LOCKFREE_INCLUDE_TESTS |
13 | #include <boost/test/included/unit_test.hpp> |
14 | #else |
15 | #include <boost/test/unit_test.hpp> |
16 | #endif |
17 | |
18 | BOOST_AUTO_TEST_CASE( tagged_ptr_test ) |
19 | { |
20 | using namespace boost::lockfree::detail; |
21 | int a(1), b(2); |
22 | |
23 | typedef tagged_ptr<int>::tag_t tag_t; |
24 | const tag_t max_tag = (std::numeric_limits<tag_t>::max)(); |
25 | |
26 | { |
27 | tagged_ptr<int> i (&a, 0); |
28 | tagged_ptr<int> j (&b, 1); |
29 | |
30 | i = j; |
31 | |
32 | BOOST_REQUIRE_EQUAL(i.get_ptr(), &b); |
33 | BOOST_REQUIRE_EQUAL(i.get_tag(), 1); |
34 | } |
35 | |
36 | { |
37 | tagged_ptr<int> i (&a, 0); |
38 | tagged_ptr<int> j (i); |
39 | |
40 | BOOST_REQUIRE_EQUAL(i.get_ptr(), j.get_ptr()); |
41 | BOOST_REQUIRE_EQUAL(i.get_tag(), j.get_tag()); |
42 | } |
43 | |
44 | { |
45 | tagged_ptr<int> i (&a, 0); |
46 | BOOST_REQUIRE_EQUAL(i.get_tag() + 1, i.get_next_tag()); |
47 | } |
48 | |
49 | { |
50 | tagged_ptr<int> j (&a, max_tag); |
51 | BOOST_REQUIRE_EQUAL(j.get_next_tag(), 0); |
52 | } |
53 | |
54 | { |
55 | tagged_ptr<int> j (&a, max_tag - 1); |
56 | BOOST_REQUIRE_EQUAL(j.get_next_tag(), max_tag); |
57 | } |
58 | } |
59 | |