traits/sumpolicy2.hpp

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


#ifndef SUMPOLICY_HPP
#define SUMPOLICY_HPP

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

#endif // SUMPOLICY_HPP