accum10.hpp

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#pragma once

#include <iterator>

template <typename Iter>
inline typename std::iterator_traits<Iter>::value_type accum(Iter start, Iter end)
{
        using VT = typename std::iterator_traits<Iter>::value_type;

        VT total = VT(); // assume VT() actually creates a zero value
        while (start != end) {
                total += *start;
                ++start;
        }
        return total;
}