size_type size() const;

reference front();

void fill( const T& value );

float load_factor() const;

void reserve( size_type count );

template< class Key, class Compare, class Alloc

iterator end();

size_type count( const Key& key ) const; (1)

template <class... Args> iterator emplace_hint( const_iterator

size_type count( const Key& key ) const; (1)