24 Iterators library [iterators]

24.5 Iterator adaptors [predef.iterators]

24.5.2 Insert iterators [insert.iterators]

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

24.5.2.2.5 back_inserter [back.inserter]

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

Returns: back_insert_iterator<Container>(x).