1int 2sub1 (int i, int j) 3{ 4 typedef int c[i+2]; 5 int x[10], y[10]; 6 7 if (j == 2) 8 { 9 memcpy (x, y, 10 * sizeof (int)); 10 return sizeof (c); 11 } 12 else 13 return sizeof (c) * 3; 14} 15 16int 17main () 18{ 19 if (sub1 (20, 3) != 66 * sizeof (int)) 20 abort (); 21 22 return 0; 23} 24