1int g1; 2int g2; 3 4foo () 5{ 6 int i = 1; 7 int x; 8 9 x = g1; 10 (*(&g1 + i - 1)) = x + 1; 11 x = g1; 12 (*(&g1 + i - 1)) = x + 1; 13 g1++; 14} 15