25 Iterators library [iterators]

25.5 Iterator adaptors [predef.iterators]

25.5.2 Insert iterators [insert.iterators]

25.5.2.3 Class template front_­insert_­iterator [front.insert.iterator]

25.5.2.3.2 front_­inserter [front.inserter]

template<class Container> constexpr front_insert_iterator<Container> front_inserter(Container& x);
Returns: front_­insert_­iterator<Container>(x).