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// 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>
#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();
}
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