| // Copyright 2011, 2020 Peter Dimov |
| // Distributed under the Boost Software License, Version 1.0. |
| // https://www.boost.org/LICENSE_1_0.txt |
| |
| #include <boost/weak_ptr.hpp> |
| #include <boost/shared_ptr.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| #include <boost/config.hpp> |
| |
| #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) |
| |
| int main() {} |
| |
| #else |
| |
| #include <unordered_set> |
| |
| int main() |
| { |
| std::unordered_set< boost::weak_ptr<void> > set; |
| |
| boost::shared_ptr<int> p1( (int*)0 ); |
| boost::shared_ptr<int> p2( p1 ); |
| boost::shared_ptr<void> p3( p1 ); |
| |
| set.insert( p1 ); |
| set.insert( p2 ); |
| set.insert( p3 ); |
| |
| BOOST_TEST_EQ( set.size(), 1 ); |
| |
| boost::weak_ptr<int> q1( p1 ); |
| boost::weak_ptr<int> q2( p2 ); |
| boost::weak_ptr<void> q3( p3 ); |
| boost::weak_ptr<int> q4( q2 ); |
| boost::weak_ptr<void> q5( q3 ); |
| |
| set.insert( q1 ); |
| set.insert( q2 ); |
| set.insert( q3 ); |
| set.insert( q4 ); |
| set.insert( q5 ); |
| |
| BOOST_TEST_EQ( set.size(), 1 ); |
| |
| boost::shared_ptr<int> p6( (int*)0 ); |
| |
| set.insert( p6 ); |
| |
| BOOST_TEST_EQ( set.size(), 2 ); |
| |
| boost::weak_ptr<int> q6( p6 ); |
| |
| set.insert( q6 ); |
| |
| BOOST_TEST_EQ( set.size(), 2 ); |
| |
| BOOST_TEST_EQ( set.count( q1 ), 1 ); |
| BOOST_TEST_EQ( set.count( q2 ), 1 ); |
| BOOST_TEST_EQ( set.count( q3 ), 1 ); |
| BOOST_TEST_EQ( set.count( q4 ), 1 ); |
| BOOST_TEST_EQ( set.count( q5 ), 1 ); |
| BOOST_TEST_EQ( set.count( q6 ), 1 ); |
| |
| boost::shared_ptr<int> p7( (int*)0 ); |
| boost::weak_ptr<int> q7( p7 ); |
| |
| BOOST_TEST_EQ( set.count( q7 ), 0 ); |
| |
| p1.reset(); |
| p2.reset(); |
| p3.reset(); |
| p6.reset(); |
| p7.reset(); |
| |
| BOOST_TEST_EQ( set.count( q1 ), 1 ); |
| BOOST_TEST_EQ( set.count( q2 ), 1 ); |
| BOOST_TEST_EQ( set.count( q3 ), 1 ); |
| BOOST_TEST_EQ( set.count( q4 ), 1 ); |
| BOOST_TEST_EQ( set.count( q5 ), 1 ); |
| BOOST_TEST_EQ( set.count( q6 ), 1 ); |
| BOOST_TEST_EQ( set.count( q7 ), 0 ); |
| |
| return boost::report_errors(); |
| } |
| |
| #endif // #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) |