reassign_pointers_int64 Subroutine

    subroutine reassign_pointers_int64(this)
        class(shared_ragged_array_int64_t), intent(inout) :: this
        integer(int64) :: n_entries
        integer(int64) :: i, win_start, win_end

        n_entries = size(this%store_sizes, kind=int64)
        win_start = 1
        do i = 1, n_entries
            win_end = win_start - 1 + this%store_sizes(i)
            this%ptr(i)%res => this%data_array%ptr(win_start:win_end)
            win_start = win_end + 1
        end do
    end subroutine reassign_pointers_int64