// { dg-do assemble }
// [class.ambig]: A single function, object, type, or enumerator may be
// reached through more than one path through the DAG of base classes. This
// is not an ambiguity.
struct A {
typedef long T;
};
struct B : public A { };
struct C : public A { };
struct D : public C , public B {
void f (T&); // { dg-bogus "" } ambiguous lookup
};