template< class Key, class T, class Hash, class KeyEqual, class

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

template< class T, class Container > bool operator==( queue<T,Container>&

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

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

size_type bucket( const Key& key ) const;

reference back();

size_type max_size() const;

hasher hash_function() const;

void clear();