What happens here (line numbers are not part of the code)? 1 struct widget 2 3 char part_type; int part_id; 5 1: 4 7 void update part (widget ap, int new id) 8 t 9 ap.part_id -new_id; 10 12 int main() 13 14 widget p'A', 100 15 update_part(p, 200); 16 17 cout