std::unordered_set::end(int), std::unordered_set::cend(int)
From cppreference.com
                    
                                        
                    < cpp | container | unordered set
                    
                                                            
                    
|   local_iterator end( size_type n ); 
 | 
(since C++11) | |
|   const_local_iterator end( size_type n ) const; 
 | 
(since C++11) | |
|   const_local_iterator cend( size_type n ) const; 
 | 
(since C++11) | |
Returns an iterator to the element following the last element of the bucket with index n. 
. This element acts as a placeholder, attempting to access it results in undefined behavior. 
Contents | 
[edit] Parameters
| n | - | the index of the bucket to access | 
[edit] Return value
iterator to the element following the last element
[edit] Complexity
Constant
[edit] See also
|    returns an iterator to the beginning of the specified bucket   (public member function)  |