?? accum9.hpp
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/* 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 ACCUM_HPP#define ACCUM_HPP#include "accumtraits4.hpp"#include "sumpolicy3.hpp"template <typename T, typename Policy = SumPolicy<>, typename Traits = AccumulationTraits<T> >class Accum { public: typedef typename Traits::AccT AccT; static AccT accum (T const* beg, T const* end) { AccT total = Traits::zero(); while (beg != end) { Policy::accumulate(total, *beg); ++beg; } return total; }};#endif // ACCUM_HPP
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