iterator lower_bound( const Key& key ); (1)

reference front();

size_type bucket( const Key& key ) const;

size_type max_size() const;

iterator end();

iterator find( const Key& key ); (1)

template< class T, class Container, class Compare,class Alloc >

std::set::value_compare value_comp() const;

float max_load_factor() const; (1)

allocator_type get_allocator() const;