std::match_results<BidirIt,Alloc>::end, std::match_results<BidirIt,Alloc>::cend
From cppreference.com
                    
                                        
                    < cpp | regex | match results
                    
                                                            
                    |   iterator end() noexcept;  | 
(since C++11) | |
|   const_iterator end() const noexcept;  | 
(since C++11) | |
|   const_iterator cend() const noexcept;  | 
(since C++11) | |
Returns an iterator to the end of the list of sub-matches.
Parameters
(none)
Return value
Iterator to the element past the last sub-match.
Complexity
Constant
See also
|    returns iterator to the beginning of the list of sub-matches  (public member function)  |