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- #include <boost/config.hpp>
- // shared_ptr_alias_test.cpp
- //
- // Copyright (c) 2007 Peter Dimov
- //
- // Distributed under the Boost Software License, Version 1.0. (See
- // accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/shared_ptr.hpp>
- #include <memory>
- #include <cstddef>
- //
- class incomplete;
- struct X
- {
- int v_;
- explicit X( int v ): v_( v )
- {
- }
- ~X()
- {
- v_ = 0;
- }
- };
- int main()
- {
- {
- int m = 0;
- boost::shared_ptr< int > p;
- boost::shared_ptr< int > p2( p, &m );
- BOOST_TEST( p2.get() == &m );
- BOOST_TEST( p2? true: false );
- BOOST_TEST( !!p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- p2.reset( p, 0 );
- BOOST_TEST( p2.get() == 0 );
- BOOST_TEST( p2? false: true );
- BOOST_TEST( !p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- }
- {
- int m = 0;
- boost::shared_ptr< int > p( new int );
- boost::shared_ptr< int const > p2( p, &m );
- BOOST_TEST( p2.get() == &m );
- BOOST_TEST( p2? true: false );
- BOOST_TEST( !!p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- boost::shared_ptr< int volatile > p3;
- p2.reset( p3, 0 );
- BOOST_TEST( p2.get() == 0 );
- BOOST_TEST( p2? false: true );
- BOOST_TEST( !p2 );
- BOOST_TEST( p2.use_count() == p3.use_count() );
- BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
- }
- {
- boost::shared_ptr< int > p( new int );
- boost::shared_ptr< void const > p2( p, 0 );
- BOOST_TEST( p2.get() == 0 );
- BOOST_TEST( p2? false: true );
- BOOST_TEST( !p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- int m = 0;
- boost::shared_ptr< void volatile > p3;
- p2.reset( p3, &m );
- BOOST_TEST( p2.get() == &m );
- BOOST_TEST( p2? true: false );
- BOOST_TEST( !!p2 );
- BOOST_TEST( p2.use_count() == p3.use_count() );
- BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
- }
- {
- boost::shared_ptr< incomplete > p;
- boost::shared_ptr< incomplete > p2( p, 0 );
- BOOST_TEST( p2.get() == 0 );
- BOOST_TEST( p2? false: true );
- BOOST_TEST( !p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- p2.reset( p, 0 );
- BOOST_TEST( p2.get() == 0 );
- BOOST_TEST( p2? false: true );
- BOOST_TEST( !p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- }
- {
- boost::shared_ptr< X > p( new X( 5 ) );
- boost::shared_ptr< int const > p2( p, &p->v_ );
- BOOST_TEST( p2.get() == &p->v_ );
- BOOST_TEST( p2? true: false );
- BOOST_TEST( !!p2 );
- BOOST_TEST( p2.use_count() == p.use_count() );
- BOOST_TEST( !( p < p2 ) && !( p2 < p ) );
- p.reset();
- BOOST_TEST( *p2 == 5 );
- boost::shared_ptr< X const > p3( new X( 8 ) );
- p2.reset( p3, &p3->v_ );
- BOOST_TEST( p2.get() == &p3->v_ );
- BOOST_TEST( p2? true: false );
- BOOST_TEST( !!p2 );
- BOOST_TEST( p2.use_count() == p3.use_count() );
- BOOST_TEST( !( p3 < p2 ) && !( p2 < p3 ) );
- p3.reset();
- BOOST_TEST( *p2 == 8 );
- }
- return boost::report_errors();
- }
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