rparam.hpp

来自「C++_Templates这本书的随书源码」· HPP 代码 · 共 26 行

/* 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