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// RUN: %clang_cc1 -fsyntax-only -verify %s
struct Base {
int data;
int method();
};
int (Base::*data_ptr) = &Base::data;
int (Base::*method_ptr)() = &Base::method;
namespace test0 {
struct Derived : Base {};
void test() {
int (Derived::*d) = data_ptr;
int (Derived::*m)() = method_ptr;
}
}
// Can't be inaccessible.
namespace test1 {
struct Derived : private Base {}; // expected-note 2 {{declared private here}}
void test() {
int (Derived::*d) = data_ptr; // expected-error {{cannot cast private base class 'Base' to 'test1::Derived'}}
int (Derived::*m)() = method_ptr; // expected-error {{cannot cast private base class 'Base' to 'test1::Derived'}}
}
};
// Can't be ambiguous.
namespace test2 {
struct A : Base {};
struct B : Base {};
struct Derived : A, B {};
void test() {
int (Derived::*d) = data_ptr; // expected-error {{ambiguous conversion from pointer to member of base class 'Base' to pointer to member of derived class 'test2::Derived':}}
int (Derived::*m)() = method_ptr; // expected-error {{ambiguous conversion from pointer to member of base class 'Base' to pointer to member of derived class 'test2::Derived':}}
}
}
// Can't be virtual.
namespace test3 {
struct Derived : virtual Base {};
void test() {
int (Derived::*d) = data_ptr; // expected-error {{conversion from pointer to member of class 'Base' to pointer to member of class 'test3::Derived' via virtual base 'Base' is not allowed}}
int (Derived::*m)() = method_ptr; // expected-error {{conversion from pointer to member of class 'Base' to pointer to member of class 'test3::Derived' via virtual base 'Base' is not allowed}}
}
}
// Can't be virtual even if there's a non-virtual path.
namespace test4 {
struct A : Base {};
struct Derived : Base, virtual A {}; // expected-warning {{direct base 'Base' is inaccessible due to ambiguity:\n struct test4::Derived -> Base\n struct test4::Derived -> A -> Base}}
void test() {
int (Derived::*d) = data_ptr; // expected-error {{ambiguous conversion from pointer to member of base class 'Base' to pointer to member of derived class 'test4::Derived':}}
int (Derived::*m)() = method_ptr; // expected-error {{ambiguous conversion from pointer to member of base class 'Base' to pointer to member of derived class 'test4::Derived':}}
}
}
// PR6254: don't get thrown off by a virtual base.
namespace test5 {
struct A {};
struct Derived : Base, virtual A {};
void test() {
int (Derived::*d) = data_ptr;
int (Derived::*m)() = method_ptr;
}
}
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