CxxUtils::ConcurrentPtrSet< VALUE, UPDATER >::const_iterator Node1 CxxUtils::ConcurrentPtrSet < VALUE, UPDATER >::const _iterator - m_impl + const_iterator() + valid() - increment() - decrement() - equal() - dereference() Node2 boost::iterator_facade < const_iterator, const const_iterator_value, std ::bidirectional_iterator_tag, const const_iterator_value > Node2->Node1