#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();
}