typedef match_results<wstring::const_iterator> smatch;
match_results for wide string objects
This is an instantiation of the match_results class template for matches on wstring objects (with wstring::const_iterator as its iterator type).
The members of this class are those described for match_results, but using wstring::const_iterator as its BidirectionalIterator template parameter.
Please, refer to match_results for further information.