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// { dg-do run  }

// prms-id: 3708

extern "C" int printf (const char *, ...);

extern "C" int atoi (const char *);

void *ptr;

class A {

public:

  A() { printf ("A is constructed.\n"); }

  virtual void xx(int doit) { printf ("A is destructed.\n"); }

};

class A1 {

public:

  A1() { printf ("A1 is constructed.\n"); }

  virtual void xx(int doit) { printf ("A1 is destructed.\n"); }

};

class B : public virtual A, public A1 {

public:

  B() { printf ("B is constructed.\n"); }

  virtual void xx(int doit) {

    printf ("B is destructed.\n");

    A1::xx (1);

    if (doit) A::xx (1);

  }

};

int num;

class C : public virtual A, public B {

public:

  C() { ++num; printf ("C is constructed.\n");

      ptr = this;

      }

  virtual void xx(int doit) {

    --num;

    if (ptr != this)

      printf("FAIL\n%x != %x\n", ptr, this);

    printf ("C is destructed.\n");

    B::xx (0);

    if (doit) A::xx (1);

  }

};

void fooA(A *a) {

  printf ("Casting to A!\n");

  a->xx (1);

}

void fooA1(A1 *a) {

  printf ("Casting to A1!\n");

  a->xx (1);

}

void fooB(B *b) {

  printf ("Casting to B!\n");

  b->xx (1);

}

void fooC(C *c) {

  printf ("Casting to C!\n");

  c->xx (1);

}

int main(int argc, char *argv[]) {

  printf ("*** Construct C object!\n");

  C *c = new C();

  int i = 0;

  printf ("*** Try to delete the casting pointer!\n");

  switch (i)

    {

    case 0: fooA1(c);

      break;

    case 1: fooA(c);

      break;

    case 2: fooB(c);

      break;

    case 3: fooC(c);

      break;

    }

  return num!=0;

}