Method at

library/cpp/containers/paged_vector/paged_vector.h:401–403

        }

        reference at(size_t idx) {
            return TPages::at(PageNumber(idx))->at(InPageIndex(idx));
        }

        const_reference at(size_t idx) const {
            return TPages::at(PageNumber(idx))->at(InPageIndex(idx));