1// Copyright 2011, 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/smart_ptr/owner_hash.hpp>
7#include <boost/smart_ptr/owner_equal_to.hpp>
8#include <boost/core/lightweight_test.hpp>
9#include <boost/config.hpp>
10
11#if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET)
12
13int main() {}
14
15#else
16
17#include <unordered_set>
18
19int main()
20{
21 std::unordered_set< boost::shared_ptr<void>, boost::owner_hash< boost::shared_ptr<void> >, boost::owner_equal_to< boost::shared_ptr<void> > > set;
22
23 boost::shared_ptr<int> p1( (int*)0 );
24 boost::shared_ptr<int> p2( p1 );
25 boost::shared_ptr<void> p3( p1 );
26
27 set.insert( x: p1 );
28 set.insert( x: p2 );
29 set.insert( x: p3 );
30
31 BOOST_TEST_EQ( set.size(), 1 );
32
33 boost::shared_ptr<int> p4( (int*)0 );
34
35 set.insert( x: p4 );
36
37 BOOST_TEST_EQ( set.size(), 2 );
38
39 BOOST_TEST_EQ( set.count( p1 ), 1 );
40 BOOST_TEST_EQ( set.count( p2 ), 1 );
41 BOOST_TEST_EQ( set.count( p3 ), 1 );
42 BOOST_TEST_EQ( set.count( p4 ), 1 );
43
44 boost::shared_ptr<int> p5( (int*)0 );
45
46 BOOST_TEST_EQ( set.count( p5 ), 0 );
47
48 return boost::report_errors();
49}
50
51#endif // #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET)
52

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