std::insert_iterator::operator++
From cppreference.com
                    
                                        
                    < cpp | iterator | insert iterator
                    
                                                            
                    | insert_iterator& operator++(); | ||
| insert_iterator& operator++( int ); | ||
Does nothing. These operator overloads are provided to satisfy the requirements of OutputIterator. They make it possible for the expressions *iter++=value and *++iter=value to be used to output (insert) a value into the underlying container.
[edit] Parameters
(none)
[edit] Return value
*this


