std::ostream_iterator::operator++

From cppreference.com
ostream_iterator& operator++();
ostream_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 stream.

[edit] Parameters

(none)

[edit] Return value

*this