float max_load_factor() const; (1)

template <class Allocator> struct hash<vector<bool, A

template <class... Args> pair<iterator, bool> try_emplace(const

size_type size() const;

iterator end();

void push_front( const T& value );

reference back();

reverse_iterator rend();

allocator_type get_allocator() const;

void reserve( size_type count );