The following code example is taken from the book
C++ Templates - The Complete Guide
by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
© Copyright David Vandevoorde and Nicolai M. Josuttis 2002
template <typename T>
class TypeOp { // primary template
public:
typedef T ArgT;
typedef T BareT;
typedef T const ConstT;
typedef T & RefT;
typedef T & RefBareT;
typedef T const & RefConstT;
};