9 Iterators library [iterators]

9.7 Iterator adaptors [iterators.predef]

9.7.2 Insert iterators [iterators.insert]

9.7.2.2 back_insert_iterator operations [back.insert.iter.ops]

9.7.2.2.5 back_inserter [back.inserter]

template <class Container> back_insert_iterator<Container> back_inserter(Container& x);

Returns: back_insert_iterator<Container>(x).