// In header: <boost/compute/container/stack.hpp>
template<typename T> 
class stack {
public:
  // types
  typedef vector< T >                container_type;
  typedef container_type::size_type  size_type;     
  typedef container_type::value_type value_type;    
  // construct/copy/destruct
  stack();
  stack(const stack< T > &);
  stack< T > & operator=(const stack< T > &);
  ~stack();
  // public member functions
  bool empty() const;
  size_type size() const;
  value_type top() const;
  void push(const T &);
  void pop();
};