-#ifndef BOOST_NO_STD_ITERATOR
- : public std::iterator<
- std::forward_iterator_tag,
- match_results<BidirectionalIterator>,
- typename BOOST_REGEX_DETAIL_NS::regex_iterator_traits<BidirectionalIterator>::difference_type,
- const match_results<BidirectionalIterator>*,
- const match_results<BidirectionalIterator>& >
-#endif