Method insert

library/cpp/containers/paged_vector/paged_vector.h:335–348

        }

        iterator insert(iterator it, const value_type& v) {
            size_t pnum = PageNumber(it.Offset);
            size_t pidx = InPageIndex(it.Offset);

            PrepareAppend();

            for (size_t p = NPages() - 1; p > pnum; --p) {
                PageAt(p).insert(PageAt(p).begin(), PageAt(p - 1).back());
                PageAt(p - 1).pop_back();
            }

            PageAt(pnum).insert(PageAt(pnum).begin() + pidx, v);
            return it;
        }

        template <typename TIter>
        void insert(iterator it, TIter b, TIter e) {