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std::insert_iterator::operator++

From cppreference.com
insert_iterator& operator++();
(until C++20)
constexpr insert_iterator& operator++();
(since C++20)
insert_iterator& operator++( int );
(until C++20)
constexpr insert_iterator& operator++( int );
(since C++20)

Does nothing. These operator overloads are provided to satisfy the requirements of LegacyOutputIterator. 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