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#include <boost/config.hpp>
//
// weak_from_this_test.cpp
//
// Copyright (c) 2002, 2003, 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/enable_shared_from_this.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>
#include <boost/core/lightweight_test.hpp>
class V: public boost::enable_shared_from_this<V>
{
};
void test()
{
boost::shared_ptr<V> p( new V );
boost::weak_ptr<V> q = p;
BOOST_TEST( !q.expired() );
boost::weak_ptr<V> q2 = p->weak_from_this();
BOOST_TEST( !q2.expired() );
BOOST_TEST( !(q < q2) && !(q2 < q) );
V v2( *p );
boost::weak_ptr<V> q3 = v2.weak_from_this();
BOOST_TEST( q3.expired() );
*p = V();
boost::weak_ptr<V> q4 = p->weak_from_this();
BOOST_TEST( !q4.expired() );
BOOST_TEST( !(q < q4) && !(q4 < q) );
BOOST_TEST( !(q2 < q4) && !(q4 < q2) );
}
int main()
{
test();
return boost::report_errors();
}
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