ctf_dummy_pos(pos, &dummy);
ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
ctf_move_pos(&dummy, 16 * CHAR_BIT);
assert(!ctf_pos_packet(&dummy));
ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);
ctf_dummy_pos(pos, &dummy);
ctf_align_pos(&dummy, sizeof(uint8_t) * CHAR_BIT);
ctf_move_pos(&dummy, 16 * CHAR_BIT);
assert(!ctf_pos_packet(&dummy));
ctf_align_pos(pos, sizeof(uint8_t) * CHAR_BIT);