| 1 | // Copyright 2011, 2020 Peter Dimov |
|---|---|
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // https://www.boost.org/LICENSE_1_0.txt |
| 4 | |
| 5 | #include <boost/intrusive_ptr.hpp> |
| 6 | #include <boost/core/lightweight_test.hpp> |
| 7 | #include <boost/config.hpp> |
| 8 | #include <functional> |
| 9 | |
| 10 | #if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) |
| 11 | |
| 12 | int main() {} |
| 13 | |
| 14 | #else |
| 15 | |
| 16 | class base |
| 17 | { |
| 18 | private: |
| 19 | |
| 20 | int use_count_; |
| 21 | |
| 22 | base(base const &); |
| 23 | base & operator=(base const &); |
| 24 | |
| 25 | protected: |
| 26 | |
| 27 | base(): use_count_(0) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | virtual ~base() |
| 32 | { |
| 33 | } |
| 34 | |
| 35 | public: |
| 36 | |
| 37 | long use_count() const |
| 38 | { |
| 39 | return use_count_; |
| 40 | } |
| 41 | |
| 42 | inline friend void intrusive_ptr_add_ref(base * p) |
| 43 | { |
| 44 | ++p->use_count_; |
| 45 | } |
| 46 | |
| 47 | inline friend void intrusive_ptr_release(base * p) |
| 48 | { |
| 49 | if(--p->use_count_ == 0) delete p; |
| 50 | } |
| 51 | }; |
| 52 | |
| 53 | struct X: public base |
| 54 | { |
| 55 | }; |
| 56 | |
| 57 | int main() |
| 58 | { |
| 59 | boost::intrusive_ptr<X> p1, p2( new X ); |
| 60 | |
| 61 | BOOST_TEST_EQ( std::hash< boost::intrusive_ptr<X> >()( p1 ), std::hash< X* >()( p1.get() ) ); |
| 62 | BOOST_TEST_EQ( std::hash< boost::intrusive_ptr<X> >()( p2 ), std::hash< X* >()( p2.get() ) ); |
| 63 | |
| 64 | return boost::report_errors(); |
| 65 | } |
| 66 | |
| 67 | #endif // #if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL) |
| 68 |