/* The following code example is taken from the book * "C++ Templates - The Complete Guide" * by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002 * * (C) Copyright David Vandevoorde and Nicolai M. Josuttis 2002. * Permission to copy, use, modify, sell and distribute this software * is granted provided this copyright notice appears in all copies. * This software is provided "as is" without express or implied * warranty, and with no claim as to its suitability for any purpose. */#ifndef RPARAM_HPP#define RPARAM_HPP#include "ifthenelse.hpp"#include "isclasst.hpp"template<typename T>class RParam {  public:    typedef typename IfThenElse<IsClassT<T>::No,                                T,                                T const&>::ResultT Type;};#endif // RPARAM_HPP