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- //
- // weak_from_raw_test5.cpp
- //
- // Tests whether pointers returned from weak_from_raw
- // expire properly
- //
- // Copyright 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/smart_ptr/enable_shared_from_raw.hpp>
- #include <boost/weak_ptr.hpp>
- #include <boost/core/lightweight_test.hpp>
- class X: public boost::enable_shared_from_raw
- {
- public:
- explicit X( boost::weak_ptr< X > & r )
- {
- r = boost::weak_from_raw( this );
- }
- };
- int main()
- {
- boost::weak_ptr<X> p1, p2;
- {
- boost::shared_ptr< X > px( new X( p1 ) );
- p2 = boost::weak_from_raw( px.get() );
- BOOST_TEST( !p1.expired() );
- BOOST_TEST( !p2.expired() );
- }
- BOOST_TEST( p1.expired() );
- BOOST_TEST( p2.expired() );
- return boost::report_errors();
- }
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