std::raw_storage_iterator<OutputIt,T>::operator++, operator++(int)
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                    < cpp | memory | raw storage iterator
                    
                                                            
                    |   raw_storage_iterator& operator++();  | 
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|   raw_storage_iterator operator++(int);  | 
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Advances the iterator.
1) Pre-increment. Returns the updated iterator. 
2) Post-increment. Returns the old value of the iterator. 
Parameters
(none)
Return value
1) *this
2) The old value of the iterator.