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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/shared_ptr.hpp>
#include <boost/smart_ptr/owner_hash.hpp>
#include <boost/smart_ptr/owner_equal_to.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::shared_ptr<void>, boost::owner_hash< boost::shared_ptr<void> >, boost::owner_equal_to< boost::shared_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::shared_ptr<int> p4( (int*)0 );
set.insert( p4 );
BOOST_TEST_EQ( set.size(), 2 );
BOOST_TEST_EQ( set.count( p1 ), 1 );
BOOST_TEST_EQ( set.count( p2 ), 1 );
BOOST_TEST_EQ( set.count( p3 ), 1 );
BOOST_TEST_EQ( set.count( p4 ), 1 );
boost::shared_ptr<int> p5( (int*)0 );
BOOST_TEST_EQ( set.count( p5 ), 0 );
return boost::report_errors();
}
#endif // #if defined(BOOST_NO_CXX11_HDR_UNORDERED_SET)
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