std::raw_storage_iterator<OutputIt,T>::operator=
From cppreference.com
                    
                                        
                    < cpp | memory | raw storage iterator
                    
                                                            
                    |   raw_storage_iterator& operator=( const T& el );  | 
(1) | |
|   raw_storage_iterator& operator=( T&& el );  | 
(2) | (since C++17) | 
1) Constructs a value at the location the iterator points to from el.
2) Constructs a value at the location the iterator points to from std::move(el).
Parameters
| el | - | the value to copy or move from | 
Return value
*this