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- //
- // shared_from_raw_test2.cpp - based on esft_regtest.cpp
- //
- // Copyright (c) 2008, 2014 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/smart_ptr/enable_shared_from_raw.hpp>
- #include <boost/shared_ptr.hpp>
- #include <boost/weak_ptr.hpp>
- #include <boost/detail/lightweight_test.hpp>
- #include <boost/config.hpp>
- #include <memory>
- #include <string>
- class X: public boost::enable_shared_from_raw
- {
- private:
- int destroyed_;
- int deleted_;
- int expected_;
- private:
- X( X const& );
- X& operator=( X const& );
- public:
- static int instances;
- public:
- explicit X( int expected ): destroyed_( 0 ), deleted_( 0 ), expected_( expected )
- {
- ++instances;
- }
- ~X()
- {
- BOOST_TEST( deleted_ == expected_ );
- BOOST_TEST( destroyed_ == 0 );
- ++destroyed_;
- --instances;
- }
- typedef void (*deleter_type)( X* );
- static void deleter( X * px )
- {
- ++px->deleted_;
- }
- static void deleter2( X * px )
- {
- ++px->deleted_;
- delete px;
- }
- };
- int X::instances = 0;
- void test()
- {
- BOOST_TEST( X::instances == 0 );
- {
- X x( 0 );
- BOOST_TEST( X::instances == 1 );
- }
- BOOST_TEST( X::instances == 0 );
- #if !defined( BOOST_NO_AUTO_PTR )
- {
- std::auto_ptr<X> px( new X( 0 ) );
- BOOST_TEST( X::instances == 1 );
- }
- #endif
- BOOST_TEST( X::instances == 0 );
- {
- boost::shared_ptr<X> px( new X( 0 ) );
- BOOST_TEST( X::instances == 1 );
- boost::weak_ptr<X> wp( px );
- BOOST_TEST( !wp.expired() );
- px.reset();
- BOOST_TEST( wp.expired() );
- }
- BOOST_TEST( X::instances == 0 );
- {
- X x( 1 );
- boost::shared_ptr<X> px( &x, X::deleter );
- BOOST_TEST( X::instances == 1 );
- X::deleter_type * pd = boost::get_deleter<X::deleter_type>( px );
- BOOST_TEST( pd != 0 && *pd == X::deleter );
- boost::weak_ptr<X> wp( px );
- BOOST_TEST( !wp.expired() );
- px.reset();
- BOOST_TEST( wp.expired() );
- }
- BOOST_TEST( X::instances == 0 );
- {
- boost::shared_ptr<X> px( new X( 1 ), X::deleter2 );
- BOOST_TEST( X::instances == 1 );
- X::deleter_type * pd = boost::get_deleter<X::deleter_type>( px );
- BOOST_TEST( pd != 0 && *pd == X::deleter2 );
- boost::weak_ptr<X> wp( px );
- BOOST_TEST( !wp.expired() );
- px.reset();
- BOOST_TEST( wp.expired() );
- }
- BOOST_TEST( X::instances == 0 );
- }
- struct V: public boost::enable_shared_from_raw
- {
- virtual ~V() {}
- std::string m_;
- };
- struct V2
- {
- virtual ~V2() {}
- std::string m2_;
- };
- struct W: V2, V
- {
- };
- void test2()
- {
- boost::shared_ptr<W> p( new W );
- }
- void test3()
- {
- V * p = new W;
- boost::shared_ptr<void> pv( p );
- BOOST_TEST( pv.get() == p );
- BOOST_TEST( pv.use_count() == 1 );
- }
- struct null_deleter
- {
- void operator()( void const* ) const {}
- };
- void test4()
- {
- boost::shared_ptr<V> pv( new V );
- boost::shared_ptr<V> pv2( pv.get(), null_deleter() );
- BOOST_TEST( pv2.get() == pv.get() );
- BOOST_TEST( pv2.use_count() == 1 );
- }
- void test5()
- {
- V v;
- boost::shared_ptr<V> p1( &v, null_deleter() );
- BOOST_TEST( p1.get() == &v );
- BOOST_TEST( p1.use_count() == 1 );
- try
- {
- boost::shared_from_raw( p1.get() );
- }
- catch( ... )
- {
- BOOST_ERROR( "shared_from_raw( p1.get() ) failed" );
- }
- p1.reset();
- boost::shared_ptr<V> p2( &v, null_deleter() );
- BOOST_TEST( p2.get() == &v );
- BOOST_TEST( p2.use_count() == 1 );
- try
- {
- boost::shared_from_raw( p2.get() );
- }
- catch( ... )
- {
- BOOST_ERROR( "shared_from_raw( p2.get() ) failed" );
- }
- }
- int main()
- {
- test();
- test2();
- test3();
- test4();
- test5();
- return boost::report_errors();
- }
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