newtests/dyn_c.c

extern int NEED_A();
extern int NEED_B();
extern int NEED_C(int a, int c);
extern int DEF_A_STEAL_B();
extern int DEF_C_STEAL_C();

int DEF_C_STEAL_B(int A, int C) {
  return (int) 'C';
}

int NEED_C(int A, int C) {
  if (A != 'A') return (int) 'A';
  if (C != 'C') return (int) 'C';

  return 'P';
}