| // Copyright 2011, 2020 Peter Dimov |
| // Distributed under the Boost Software License, Version 1.0. |
| // https://www.boost.org/LICENSE_1_0.txt |
| |
| #include <boost/intrusive_ptr.hpp> |
| #include <boost/core/lightweight_test.hpp> |
| #include <boost/config.hpp> |
| #include <functional> |
| |
| #if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) |
| |
| int main() {} |
| |
| #else |
| |
| class base |
| { |
| private: |
| |
| int use_count_; |
| |
| base(base const &); |
| base & operator=(base const &); |
| |
| protected: |
| |
| base(): use_count_(0) |
| { |
| } |
| |
| virtual ~base() |
| { |
| } |
| |
| public: |
| |
| long use_count() const |
| { |
| return use_count_; |
| } |
| |
| inline friend void intrusive_ptr_add_ref(base * p) |
| { |
| ++p->use_count_; |
| } |
| |
| inline friend void intrusive_ptr_release(base * p) |
| { |
| if(--p->use_count_ == 0) delete p; |
| } |
| }; |
| |
| struct X: public base |
| { |
| }; |
| |
| int main() |
| { |
| boost::intrusive_ptr<X> p1, p2( new X ); |
| |
| BOOST_TEST_EQ( std::hash< boost::intrusive_ptr<X> >()( p1 ), std::hash< X* >()( p1.get() ) ); |
| BOOST_TEST_EQ( std::hash< boost::intrusive_ptr<X> >()( p2 ), std::hash< X* >()( p2.get() ) ); |
| |
| return boost::report_errors(); |
| } |
| |
| #endif // #if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) |