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1 | // |
2 | // shared_ptr_rv_test.cpp | |
3 | // | |
4 | // Copyright (c) 2007 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/shared_ptr.hpp> | |
f67539c2 | 12 | #include <boost/core/lightweight_test.hpp> |
7c673cae FG |
13 | |
14 | struct X | |
15 | { | |
16 | static long instances; | |
17 | ||
18 | X() | |
19 | { | |
20 | ++instances; | |
21 | } | |
22 | ||
23 | ~X() | |
24 | { | |
25 | --instances; | |
26 | } | |
27 | ||
28 | static boost::shared_ptr<X> create() | |
29 | { | |
30 | return boost::shared_ptr<X>( new X ); | |
31 | } | |
32 | ||
33 | private: | |
34 | ||
35 | X( X const & ); | |
36 | X & operator=( X const & ); | |
37 | }; | |
38 | ||
39 | long X::instances = 0; | |
40 | ||
41 | int main() | |
42 | { | |
43 | BOOST_TEST( X::instances == 0 ); | |
44 | ||
45 | { | |
46 | boost::shared_ptr<X> p( X::create() ); | |
47 | BOOST_TEST( X::instances == 1 ); | |
48 | ||
49 | p = X::create(); | |
50 | BOOST_TEST( X::instances == 1 ); | |
51 | ||
52 | p.reset(); | |
53 | BOOST_TEST( X::instances == 0 ); | |
54 | ||
55 | p = X::create(); | |
56 | BOOST_TEST( X::instances == 1 ); | |
57 | } | |
58 | ||
59 | BOOST_TEST( X::instances == 0 ); | |
60 | ||
61 | { | |
62 | boost::shared_ptr<X const> p( X::create() ); | |
63 | BOOST_TEST( X::instances == 1 ); | |
64 | ||
65 | p = X::create(); | |
66 | BOOST_TEST( X::instances == 1 ); | |
67 | ||
68 | p.reset(); | |
69 | BOOST_TEST( X::instances == 0 ); | |
70 | ||
71 | p = X::create(); | |
72 | BOOST_TEST( X::instances == 1 ); | |
73 | } | |
74 | ||
75 | BOOST_TEST( X::instances == 0 ); | |
76 | ||
77 | { | |
78 | boost::shared_ptr<void> p( X::create() ); | |
79 | BOOST_TEST( X::instances == 1 ); | |
80 | ||
81 | p = X::create(); | |
82 | BOOST_TEST( X::instances == 1 ); | |
83 | ||
84 | p.reset(); | |
85 | BOOST_TEST( X::instances == 0 ); | |
86 | ||
87 | p = X::create(); | |
88 | BOOST_TEST( X::instances == 1 ); | |
89 | } | |
90 | ||
91 | BOOST_TEST( X::instances == 0 ); | |
92 | ||
93 | { | |
94 | boost::shared_ptr<void const> p( X::create() ); | |
95 | BOOST_TEST( X::instances == 1 ); | |
96 | ||
97 | p = X::create(); | |
98 | BOOST_TEST( X::instances == 1 ); | |
99 | ||
100 | p.reset(); | |
101 | BOOST_TEST( X::instances == 0 ); | |
102 | ||
103 | p = X::create(); | |
104 | BOOST_TEST( X::instances == 1 ); | |
105 | } | |
106 | ||
107 | BOOST_TEST( X::instances == 0 ); | |
108 | ||
109 | return boost::report_errors(); | |
110 | } |