| // |
| // sp_unique_ptr_test.cpp |
| // |
| // Copyright (c) 2012 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/shared_ptr.hpp> |
| #include <boost/enable_shared_from_this.hpp> |
| #include <boost/detail/lightweight_test.hpp> |
| #include <memory> |
| #include <utility> |
| |
| #if !defined( BOOST_NO_CXX11_SMART_PTR ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) |
| |
| struct X: public boost::enable_shared_from_this< X > |
| { |
| static int instances; |
| |
| X() |
| { |
| ++instances; |
| } |
| |
| ~X() |
| { |
| --instances; |
| } |
| |
| private: |
| |
| X( X const & ); |
| X & operator=( X const & ); |
| }; |
| |
| int X::instances = 0; |
| |
| struct Y |
| { |
| static int instances; |
| |
| bool deleted_; |
| |
| Y(): deleted_( false ) |
| { |
| ++instances; |
| } |
| |
| ~Y() |
| { |
| BOOST_TEST( deleted_ ); |
| --instances; |
| } |
| |
| private: |
| |
| Y( Y const & ); |
| Y & operator=( Y const & ); |
| }; |
| |
| int Y::instances = 0; |
| |
| struct YD |
| { |
| void operator()( Y* p ) const |
| { |
| p->deleted_ = true; |
| delete p; |
| } |
| }; |
| |
| int main() |
| { |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| std::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<X> p2( std::move( p ) ); |
| BOOST_TEST( X::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| boost::shared_ptr<X> p3 = p2->shared_from_this(); |
| BOOST_TEST( p2 == p3 ); |
| BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); |
| |
| p2.reset(); |
| p3.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| std::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<X const> p2( std::move( p ) ); |
| BOOST_TEST( X::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| boost::shared_ptr<X const> p3 = p2->shared_from_this(); |
| BOOST_TEST( p2 == p3 ); |
| BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); |
| |
| p2.reset(); |
| p3.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| std::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<void> p2( std::move( p ) ); |
| BOOST_TEST( X::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = std::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( Y::instances == 0 ); |
| |
| std::unique_ptr<Y, YD> p( new Y, YD() ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( std::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = std::unique_ptr<Y, YD>( new Y, YD() ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = std::unique_ptr<Y, YD>( new Y, YD() ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( Y::instances == 0 ); |
| |
| YD yd; |
| |
| std::unique_ptr<Y, YD&> p( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( std::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = std::unique_ptr<Y, YD&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = std::unique_ptr<Y, YD&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( Y::instances == 0 ); |
| |
| YD yd; |
| |
| std::unique_ptr<Y, YD const&> p( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( std::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = std::unique_ptr<Y, YD const&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = std::unique_ptr<Y, YD const&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| } |
| |
| return boost::report_errors(); |
| } |
| |
| #else // !defined( BOOST_NO_CXX11_SMART_PTR ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) |
| |
| int main() |
| { |
| return 0; |
| } |
| |
| #endif |