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/smart_ptr/owner_hash.hpp> |
6 | #include <boost/shared_ptr.hpp> |
7 | #include <boost/weak_ptr.hpp> |
8 | #include <boost/core/lightweight_test.hpp> |
9 | |
10 | template<class T> std::size_t hash_( T const& t ) |
11 | { |
12 | return boost::owner_hash<T>()( t ); |
13 | } |
14 | |
15 | int main() |
16 | { |
17 | boost::shared_ptr<int> p1( new int ); |
18 | boost::shared_ptr<int> p2( p1 ); |
19 | |
20 | BOOST_TEST_EQ( hash_( p1 ), hash_( p2 ) ); |
21 | |
22 | boost::shared_ptr<int> p3( new int ); |
23 | |
24 | BOOST_TEST_NE( hash_( p1 ), hash_( p3 ) ); |
25 | |
26 | boost::shared_ptr<int> p4; |
27 | boost::shared_ptr<int> p5; |
28 | |
29 | BOOST_TEST_EQ( hash_( p4 ), hash_( p5 ) ); |
30 | BOOST_TEST_NE( hash_( p4 ), hash_( p3 ) ); |
31 | |
32 | boost::shared_ptr<int> p6( static_cast<int*>(0) ); |
33 | |
34 | BOOST_TEST_NE( hash_( p4 ), hash_( p6 ) ); |
35 | |
36 | boost::shared_ptr<void> p7( p1 ); |
37 | |
38 | BOOST_TEST_EQ( hash_( p1 ), hash_( p7 ) ); |
39 | |
40 | boost::shared_ptr<void> p8; |
41 | |
42 | BOOST_TEST_NE( hash_( p1 ), hash_( p8 ) ); |
43 | BOOST_TEST_EQ( hash_( p4 ), hash_( p8 ) ); |
44 | |
45 | boost::weak_ptr<int> q1( p1 ); |
46 | |
47 | BOOST_TEST_EQ( hash_( p1 ), hash_( q1 ) ); |
48 | |
49 | boost::weak_ptr<int> q2( p1 ); |
50 | |
51 | BOOST_TEST_EQ( hash_( q1 ), hash_( q2 ) ); |
52 | |
53 | boost::weak_ptr<int> q3( p3 ); |
54 | |
55 | BOOST_TEST_NE( hash_( p1 ), hash_( q3 ) ); |
56 | BOOST_TEST_NE( hash_( q1 ), hash_( q3 ) ); |
57 | |
58 | boost::weak_ptr<int> q4; |
59 | |
60 | BOOST_TEST_EQ( hash_( p4 ), hash_( q4 ) ); |
61 | BOOST_TEST_NE( hash_( q1 ), hash_( q4 ) ); |
62 | |
63 | boost::weak_ptr<void> q5; |
64 | |
65 | BOOST_TEST_EQ( hash_( q4 ), hash_( q5 ) ); |
66 | |
67 | boost::weak_ptr<void> q7( p7 ); |
68 | |
69 | BOOST_TEST_EQ( hash_( p1 ), hash_( q7 ) ); |
70 | BOOST_TEST_EQ( hash_( q1 ), hash_( q7 ) ); |
71 | |
72 | p1.reset(); |
73 | p2.reset(); |
74 | p3.reset(); |
75 | p7.reset(); |
76 | |
77 | BOOST_TEST( q1.expired() ); |
78 | BOOST_TEST( q2.expired() ); |
79 | BOOST_TEST( q3.expired() ); |
80 | BOOST_TEST( q7.expired() ); |
81 | |
82 | BOOST_TEST_EQ( hash_( q1 ), hash_( q2 ) ); |
83 | BOOST_TEST_EQ( hash_( q1 ), hash_( q7 ) ); |
84 | BOOST_TEST_NE( hash_( q1 ), hash_( q3 ) ); |
85 | BOOST_TEST_NE( hash_( q1 ), hash_( q4 ) ); |
86 | |
87 | return boost::report_errors(); |
88 | } |
89 | |