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43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
// Copyright 2011, 2020 Peter Dimov
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// Distributed under the Boost Software License, Version 1.0.
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// https://www.boost.org/LICENSE_1_0.txt
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#include <boost/shared_ptr.hpp>
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#include <boost/smart_ptr/owner_hash.hpp>
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#include <boost/smart_ptr/owner_equal_to.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <boost/config.hpp>
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#include <unordered_set>
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int main()
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{
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std::unordered_set< boost::shared_ptr<void>, boost::owner_hash< boost::shared_ptr<void> >, boost::owner_equal_to< boost::shared_ptr<void> > > set;
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boost::shared_ptr<int> p1( (int*)0 );
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boost::shared_ptr<int> p2( p1 );
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boost::shared_ptr<void> p3( p1 );
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set.insert( p1 );
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set.insert( p2 );
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set.insert( p3 );
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BOOST_TEST_EQ( set.size(), 1 );
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boost::shared_ptr<int> p4( (int*)0 );
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set.insert( p4 );
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BOOST_TEST_EQ( set.size(), 2 );
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BOOST_TEST_EQ( set.count( p1 ), 1 );
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BOOST_TEST_EQ( set.count( p2 ), 1 );
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BOOST_TEST_EQ( set.count( p3 ), 1 );
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BOOST_TEST_EQ( set.count( p4 ), 1 );
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boost::shared_ptr<int> p5( (int*)0 );
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BOOST_TEST_EQ( set.count( p5 ), 0 );
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return boost::report_errors();
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}
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