std::array::rbegin, std::array::crbegin
From cppreference.com
                    
                                        
                    
                    
                                                            
                    
|   reverse_iterator rbegin(); 
 | 
(since C++11) | |
|   const_reverse_iterator rbegin() const; 
 | 
(since C++11) | |
|   const_reverse_iterator crbegin() const; 
 | 
(since C++11) | |
Returns a reverse iterator to the first element of the reversed container. It corresponds to the last element of the non-reversed container.
Contents | 
[edit] Parameters
(none)
[edit] Return value
Reverse iterator to the first element.
[edit] Exceptions
noexcept specification:  
noexcept
  [edit] Complexity
Constant.
[edit] See also
|    returns a reverse iterator to the end   (public member function)  |