1// Copyright 2020 Peter Dimov
2// Distributed under the Boost Software License, Version 1.0.
3// https://www.boost.org/LICENSE_1_0.txt
4
5#include <boost/shared_ptr.hpp>
6#include <boost/weak_ptr.hpp>
7#include <boost/core/lightweight_test.hpp>
8
9int main()
10{
11 {
12 boost::shared_ptr<int> p1( new int );
13 boost::shared_ptr<int> p2( p1 );
14
15 BOOST_TEST( p1.owner_equals( p2 ) );
16 BOOST_TEST( p2.owner_equals( p1 ) );
17
18 boost::shared_ptr<int> p3( new int );
19
20 BOOST_TEST( !p1.owner_equals( p3 ) );
21 BOOST_TEST( !p3.owner_equals( p1 ) );
22
23 boost::shared_ptr<int> p4;
24 boost::shared_ptr<int> p5;
25
26 BOOST_TEST( p4.owner_equals( p5 ) );
27 BOOST_TEST( p5.owner_equals( p4 ) );
28
29 BOOST_TEST( !p4.owner_equals( p3 ) );
30 BOOST_TEST( !p3.owner_equals( p4 ) );
31
32 boost::shared_ptr<int> p6( static_cast<int*>(0) );
33
34 BOOST_TEST( !p4.owner_equals( p6 ) );
35 BOOST_TEST( !p6.owner_equals( p4 ) );
36
37 boost::shared_ptr<void> p7( p1 );
38
39 BOOST_TEST( p1.owner_equals( p7 ) );
40 BOOST_TEST( p7.owner_equals( p1 ) );
41
42 boost::shared_ptr<void> p8;
43
44 BOOST_TEST( !p1.owner_equals( p8 ) );
45 BOOST_TEST( !p8.owner_equals( p1 ) );
46
47 BOOST_TEST( p4.owner_equals( p8 ) );
48 BOOST_TEST( p8.owner_equals( p4 ) );
49
50 boost::weak_ptr<int> q1( p1 );
51
52 BOOST_TEST( p1.owner_equals( q1 ) );
53 BOOST_TEST( q1.owner_equals( p1 ) );
54
55 boost::weak_ptr<int> q2( p1 );
56
57 BOOST_TEST( q1.owner_equals( q2 ) );
58 BOOST_TEST( q2.owner_equals( q1 ) );
59
60 boost::weak_ptr<int> q3( p3 );
61
62 BOOST_TEST( !p1.owner_equals( q3 ) );
63 BOOST_TEST( !q3.owner_equals( p1 ) );
64
65 BOOST_TEST( !q1.owner_equals( q3 ) );
66 BOOST_TEST( !q3.owner_equals( q1 ) );
67
68 boost::weak_ptr<int> q4;
69
70 BOOST_TEST( p4.owner_equals( q4 ) );
71 BOOST_TEST( q4.owner_equals( p4 ) );
72
73 BOOST_TEST( !q1.owner_equals( q4 ) );
74 BOOST_TEST( !q4.owner_equals( q1 ) );
75
76 boost::weak_ptr<void> q5;
77
78 BOOST_TEST( q4.owner_equals( q5 ) );
79 BOOST_TEST( q5.owner_equals( q4 ) );
80
81 boost::weak_ptr<void> q7( p7 );
82
83 BOOST_TEST( p1.owner_equals( q7 ) );
84 BOOST_TEST( q7.owner_equals( p1 ) );
85
86 BOOST_TEST( q1.owner_equals( q7 ) );
87 BOOST_TEST( q7.owner_equals( q1 ) );
88
89 p1.reset();
90 p2.reset();
91 p3.reset();
92 p7.reset();
93
94 BOOST_TEST( q1.expired() );
95 BOOST_TEST( q2.expired() );
96 BOOST_TEST( q3.expired() );
97 BOOST_TEST( q7.expired() );
98
99 BOOST_TEST( q1.owner_equals( q2 ) );
100 BOOST_TEST( q2.owner_equals( q1 ) );
101
102 BOOST_TEST( q1.owner_equals( q7 ) );
103 BOOST_TEST( q7.owner_equals( q1 ) );
104
105 BOOST_TEST( !q1.owner_equals( q3 ) );
106 BOOST_TEST( !q3.owner_equals( q1 ) );
107
108 BOOST_TEST( !q1.owner_equals( q4 ) );
109 BOOST_TEST( !q4.owner_equals( q1 ) );
110 }
111
112 return boost::report_errors();
113}
114

source code of boost/libs/smart_ptr/test/sp_owner_equals_test.cpp