1 struct F { int i; }; 2 f1(struct F * x,struct F * y)3void f1(struct F *x, struct F *y) 4 { 5 int timeout = 0; 6 for (; ((const struct F*)x)->i < y->i ; x->i++) 7 if (++timeout > 5) 8 abort (); 9 } 10 main()11main() 12 { 13 struct F x, y; 14 x.i = 0; 15 y.i = 1; 16 f1 (&x, &y); 17 exit (0); 18 } 19