| 1 | // |
|---|---|
| 2 | // weak_from_raw_test5.cpp |
| 3 | // |
| 4 | // Tests whether pointers returned from weak_from_raw |
| 5 | // expire properly |
| 6 | // |
| 7 | // Copyright 2015 Peter Dimov |
| 8 | // |
| 9 | // Distributed under the Boost Software License, Version 1.0. |
| 10 | // |
| 11 | // See accompanying file LICENSE_1_0.txt or copy at |
| 12 | // http://www.boost.org/LICENSE_1_0.txt |
| 13 | // |
| 14 | |
| 15 | #include <boost/smart_ptr/enable_shared_from_raw.hpp> |
| 16 | #include <boost/weak_ptr.hpp> |
| 17 | #include <boost/core/lightweight_test.hpp> |
| 18 | |
| 19 | class X: public boost::enable_shared_from_raw |
| 20 | { |
| 21 | public: |
| 22 | |
| 23 | explicit X( boost::weak_ptr< X > & r ) |
| 24 | { |
| 25 | r = boost::weak_from_raw( p: this ); |
| 26 | } |
| 27 | }; |
| 28 | |
| 29 | int main() |
| 30 | { |
| 31 | boost::weak_ptr<X> p1, p2; |
| 32 | |
| 33 | { |
| 34 | boost::shared_ptr< X > px( new X( p1 ) ); |
| 35 | p2 = boost::weak_from_raw( p: px.get() ); |
| 36 | |
| 37 | BOOST_TEST( !p1.expired() ); |
| 38 | BOOST_TEST( !p2.expired() ); |
| 39 | } |
| 40 | |
| 41 | BOOST_TEST( p1.expired() ); |
| 42 | BOOST_TEST( p2.expired() ); |
| 43 | |
| 44 | return boost::report_errors(); |
| 45 | } |
| 46 |