1 typedef struct s_st { int a; int *b; } st;
2 typedef union s_ut { int a; st s; st *t; int **c; } ut;
7 int f (int ia[], st s1, ut *u1) st gst; ut *gu; { }
9 void model (int ia[]) st gst; ut *gu; { modifies ia[6]; }
11 void modst (st s1) { modifies *s1.b; }
13 void modu (ut *u) { modifies *u; }