Function copy

uspace/lib/cpp/include/__bits/algorithm.hpp:352–358

    template<class InputIterator, class OutputIterator>
    OutputIterator copy(InputIterator first, InputIterator last, OutputIterator result)
    {
        while (first != last)
            *result++ = *first++;

        return result;
    }

    template<class InputIterator, class Size, class OutputIterator>
    OutputIterator copy_n(InputIterator first, Size count, OutputIterator result)