clamp.hpp

来自「C++_Templates这本书的随书源码」· HPP 代码 · 共 21 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.
 */
template <typename T, T max_result>
class Clamp : private Min<T> {
  public:
    typedef T ReturnT;
    typedef T Param1T;
    enum { NumParams = 1 };
    ReturnT operator() (Param1T a) {
        return Min<T>::operator() (a, max_result);
    }
};