Function erase_head_copy

ext/include/boost/algorithm/string/erase.hpp:694–704

            typename OutputIteratorT,
            typename RangeT>
        inline OutputIteratorT erase_head_copy(
            OutputIteratorT Output,
            const RangeT& Input,
            int N )
        {
            return ::boost::algorithm::find_format_copy(
                Output,
                Input,
                ::boost::algorithm::head_finder(N),
                ::boost::algorithm::empty_formatter( Input ) );
        }

        //! Erase head algorithm
        /*!