1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 class A { };
3 class B : public A { };
4 class C : public A { };
5 class D : public B, public C { };
6
f(D * d)7 void f(D* d) {
8 A* a;
9 a = d; // expected-error{{ambiguous conversion from derived class 'D' to base class 'A':}}
10 }
11
12 class Object2 { };
13 class A2 : public Object2 { };
14 class B2 : public virtual A2 { };
15 class C2 : virtual public A2 { };
16 class D2 : public B2, public C2 { };
17 class E2 : public D2, public C2, public virtual A2 { }; // expected-warning{{direct base 'C2' is inaccessible due to ambiguity:\n class E2 -> class D2 -> class C2\n class E2 -> class C2}}
18 class F2 : public E2, public A2 { }; // expected-warning{{direct base 'A2' is inaccessible due to ambiguity:\n class F2 -> class E2 -> class D2 -> class B2 -> class A2\n class F2 -> class A2}}
19
g(E2 * e2,F2 * f2)20 void g(E2* e2, F2* f2) {
21 Object2* o2;
22 o2 = e2;
23 o2 = f2; // expected-error{{ambiguous conversion from derived class 'F2' to base class 'Object2':}}
24 }
25
26 // Test that ambiguous/inaccessibility checking does not trigger too
27 // early, because it should not apply during overload resolution.
28 void overload_okay(Object2*);
29 void overload_okay(E2*);
30
overload_call(F2 * f2)31 void overload_call(F2* f2) {
32 overload_okay(f2);
33 }
34