llvm-project/clang/test/SemaCXX/derived-to-base-ambig.cpp

34 lines
1.1 KiB
C++

// RUN: clang-cc -fsyntax-only -verify %s
class A { };
class B : public A { };
class C : public A { };
class D : public B, public C { };
void f(D* d) {
A* a;
a = d; // expected-error{{ambiguous conversion from derived class 'class D' to base class 'class A'}} expected-error{{incompatible type assigning 'class D *', expected 'class A *'}}
}
class Object2 { };
class A2 : public Object2 { };
class B2 : public virtual A2 { };
class C2 : virtual public A2 { };
class D2 : public B2, public C2 { };
class E2 : public D2, public C2, public virtual A2 { };
class F2 : public E2, public A2 { };
void g(E2* e2, F2* f2) {
Object2* o2;
o2 = e2;
o2 = f2; // expected-error{{ambiguous conversion from derived class 'class F2' to base class 'class Object2'}} expected-error{{incompatible type assigning 'class F2 *', expected 'class Object2 *'}}
}
// Test that ambiguous/inaccessibility checking does not trigger too
// early, because it should not apply during overload resolution.
void overload_okay(Object2*);
void overload_okay(E2*);
void overload_call(F2* f2) {
overload_okay(f2);
}