| // |
| // sp_bml_unique_ptr_test.cpp |
| // |
| // Copyright (c) 2012, 2015 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/core/lightweight_test.hpp> |
| #include <boost/move/unique_ptr.hpp> |
| #include <boost/type_traits/remove_reference.hpp> |
| #include <memory> |
| #include <utility> |
| |
| 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 |
| { |
| if( p ) |
| { |
| p->deleted_ = true; |
| delete p; |
| } |
| else |
| { |
| BOOST_ERROR( "YD::operator()(0) called" ); |
| } |
| } |
| }; |
| |
| template<class U, class T, class D> static void test_null_unique_ptr( boost::movelib::unique_ptr<T, D> p1, boost::movelib::unique_ptr<T, D> p2 ) |
| { |
| BOOST_TEST( T::instances == 0 ); |
| |
| boost::shared_ptr<U> sp( boost::move( p1 ) ); |
| |
| BOOST_TEST( sp.get() == 0 ); |
| BOOST_TEST( sp.use_count() == 0 ); |
| |
| sp.reset( new T, typename boost::remove_reference<D>::type() ); |
| |
| BOOST_TEST( sp.get() != 0 ); |
| BOOST_TEST( sp.use_count() == 1 ); |
| |
| BOOST_TEST( T::instances == 1 ); |
| |
| sp = boost::move( p2 ); |
| |
| BOOST_TEST( sp.get() == 0 ); |
| BOOST_TEST( sp.use_count() == 0 ); |
| |
| BOOST_TEST( T::instances == 0 ); |
| } |
| |
| int main() |
| { |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| boost::movelib::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<X> p2( boost::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 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p3 = p2->shared_from_this(); |
| BOOST_TEST( p2 == p3 ); |
| BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); |
| |
| p2.reset(); |
| p3.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| boost::movelib::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<X const> p2( boost::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 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p3 = p2->shared_from_this(); |
| BOOST_TEST( p2 == p3 ); |
| BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); |
| |
| p2.reset(); |
| p3.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( X::instances == 0 ); |
| |
| boost::movelib::unique_ptr<X> p( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| boost::shared_ptr<void> p2( boost::move( p ) ); |
| BOOST_TEST( X::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| |
| p2 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2 = boost::movelib::unique_ptr<X>( new X ); |
| BOOST_TEST( X::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( X::instances == 0 ); |
| } |
| |
| { |
| BOOST_TEST( Y::instances == 0 ); |
| |
| boost::movelib::unique_ptr<Y, YD> p( new Y, YD() ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( boost::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = boost::movelib::unique_ptr<Y, YD>( new Y, YD() ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = boost::movelib::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; |
| |
| boost::movelib::unique_ptr<Y, YD&> p( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( boost::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = boost::movelib::unique_ptr<Y, YD&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = boost::movelib::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; |
| |
| boost::movelib::unique_ptr<Y, YD const&> p( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| boost::shared_ptr<Y> p2( boost::move( p ) ); |
| BOOST_TEST( Y::instances == 1 ); |
| BOOST_TEST( p.get() == 0 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| |
| p2 = boost::movelib::unique_ptr<Y, YD const&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2 = boost::movelib::unique_ptr<Y, YD const&>( new Y, yd ); |
| BOOST_TEST( Y::instances == 1 ); |
| |
| p2.reset(); |
| BOOST_TEST( Y::instances == 0 ); |
| } |
| |
| { |
| test_null_unique_ptr<X>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); |
| test_null_unique_ptr<X const>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); |
| test_null_unique_ptr<void>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); |
| test_null_unique_ptr<void const>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); |
| } |
| |
| { |
| test_null_unique_ptr<Y>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); |
| test_null_unique_ptr<Y const>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); |
| test_null_unique_ptr<void>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); |
| test_null_unique_ptr<void const>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); |
| } |
| |
| { |
| YD yd; |
| |
| test_null_unique_ptr<Y>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); |
| test_null_unique_ptr<Y const>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); |
| test_null_unique_ptr<void>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); |
| test_null_unique_ptr<void const>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); |
| } |
| |
| return boost::report_errors(); |
| } |