27 Iterators library [iterators]

27.5 Iterator adaptors [predef.iterators]

27.5.2 Insert iterators [insert.iterators]

27.5.2.4 front_­insert_­iterator operations [front.insert.iter.ops]

27.5.2.4.4 front_­insert_­iterator​::​operator++ [front.insert.iter.op++]

front_insert_iterator& operator++(); front_insert_iterator operator++(int);