serialize_pos(bufinfo_T *bi, pos_T pos)
{
    undo_write_bytes(bi, (long_u)pos.lnum, 4);
    undo_write_bytes(bi, (long_u)pos.col, 4);
    undo_write_bytes(bi, (long_u)pos.coladd, 4);
}
serialize_pos(bufinfo_T *bi, pos_T pos)
{
    undo_write_bytes(bi, (long_u)pos.lnum, 4);
    undo_write_bytes(bi, (long_u)pos.col, 4);
    undo_write_bytes(bi, (long_u)pos.coladd, 4);
}