#ifndef Vector_SEEN__
#define Vector_SEEN__
///////    File: Vector.h    ///////
// n dimensional vector of type T elements
#define OP operator
#define CS const

template <class T, int n> 
class Vector
{    friend T inner(CS Vector<T,n>& v1, CS Vector<T,n>& v2);
  public:
     Vector() { }           // default constructor
     Vector (T v0);         // init elements to v0
     T& OP [](int i);
     Vector<T,n> OP +(CS Vector<T,n> v) CS;
     void display();
     /* other members */
  private:
     T vec[n];              // internal array of type T (1)
};
#endif