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