template<class _Ty, class _A>
	class vector 
	{
	public:
		typedef _Ty& reference;
		typedef const _Ty& const_reference;
		typedef _Ty* pointer;
		typedef const _Ty* const_pointer;
		typedef std::iterator<_Ty> iterator;
		typedef std::iterator<_Ty> const_iterator;
		typedef std::iterator<_Ty> reverse_iterator;
		typedef std::iterator<_Ty> const_reverse_iterator;

		iterator begin();
		iterator end();
		const_iterator cbegin() const;
		const_iterator cend() const;
		reverse_iterator rbegin();
		reverse_iterator rend();
		const_reverse_iterator rbegin() const;
		const_reverse_iterator rend() const;
	};