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53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
#include <boost/config.hpp>
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//
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// weak_from_this_test.cpp
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//
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// Copyright (c) 2002, 2003, 2015 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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// See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt
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//
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#include <boost/enable_shared_from_this.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/weak_ptr.hpp>
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#include <boost/core/lightweight_test.hpp>
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class V: public boost::enable_shared_from_this<V>
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{
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};
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void test()
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{
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boost::shared_ptr<V> p( new V );
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boost::weak_ptr<V> q = p;
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BOOST_TEST( !q.expired() );
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boost::weak_ptr<V> q2 = p->weak_from_this();
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BOOST_TEST( !q2.expired() );
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BOOST_TEST( !(q < q2) && !(q2 < q) );
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V v2( *p );
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boost::weak_ptr<V> q3 = v2.weak_from_this();
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BOOST_TEST( q3.expired() );
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*p = V();
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boost::weak_ptr<V> q4 = p->weak_from_this();
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BOOST_TEST( !q4.expired() );
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BOOST_TEST( !(q < q4) && !(q4 < q) );
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BOOST_TEST( !(q2 < q4) && !(q4 < q2) );
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}
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int main()
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{
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test();
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return boost::report_errors();
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}
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