| // I think this dynamic_cast has undefined behavior when destroying E::o |
| // because we're the F period of destruction has started and ap doesn't |
| // point to the object currently being destroyed--but the reasonable |
| // options are success or failure, not SEGV. |
| |
| // { dg-do run } |
| |
| extern "C" void abort(); |
| |
| struct A { virtual ~A(); }; |
| struct B { virtual ~B() { } }; |
| struct C : B, A { }; |
| struct E : virtual B { A o; }; |
| struct F : virtual C, virtual E { }; |
| |
| A* ap; |
| C* cp; |
| |
| A::~A() { |
| C* cp2 = dynamic_cast<C*>(ap); |
| if (cp2 != cp && cp2 != 0) |
| abort(); |
| } |
| |
| int main() { |
| F f; |
| ap = cp = &f; |
| } |
