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