Subversion Repositories openrisc

// { dg-do run  }

// Testcase for tricky dynamic cast situations.

struct A {

  virtual void f () { }

};

struct B : public A { };

struct C : public B { };

struct D : public B { };

struct E : public C, public D { };

struct B2 : public virtual A { };

struct C2 : public B2 { };

struct D2 : public B2 { };

struct E2 : public C2, public D2 { };

int main ()

{

  E e;

  E2 e2;

  A* ap = (C*)&e;

  // ap points to base subobject of unique B; succeeds

  if (dynamic_cast  (ap) == 0)

    return 1;

  ap = (C2*)&e2;

  // ap points to base subobject shared by two Bs; fails

  if (dynamic_cast  (ap) != 0)

    return 2;

}