sumpolicy1.hpp

C++_Templates这本书的随书源码

/* 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 SUMPOLICY_HPP
#define SUMPOLICY_HPP

class SumPolicy {
  public:
    template<typename T1, typename T2>
    static void accumulate (T1& total, T2 const & value) {
        total += value;
    }
};

#endif // SUMPOLICY_HPP