27 Iterators library [iterators]

27.5 Iterator adaptors [predef.iterators]

27.5.2 Insert iterators [insert.iterators]

27.5.2.6 insert_­iterator operations [insert.iter.ops]

27.5.2.6.4 insert_­iterator​::​operator++ [insert.iter.op++]

insert_iterator& operator++(); insert_iterator& operator++(int);