1int a = 1, b; 2 3g () { return 0; } 4h (x) {} 5 6f () 7{ 8 if (g () == -1) 9 return 0; 10 a = g (); 11 if (b >= 1) 12 h (a); 13 return 0; 14} 15 16main () 17{ 18 f (); 19 if (a != 0) 20 abort (); 21 exit (0); 22} 23