xref: /llvm-project/clang/test/CXX/class.derived/class.member.lookup/p11.cpp (revision a7bc9cb6ffa91ff0ebabc45c0c7263c7c2c3a4de)
1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 
3 struct B1 {
4   void f();
5   static void f(int);
6   int i; // expected-note 2{{member found by ambiguous name lookup}}
7 };
8 struct B2 {
9   void f(double);
10 };
11 struct I1: B1 { };
12 struct I2: B1 { };
13 
14 struct D: I1, I2, B2 {
15   using B1::f;
16   using B2::f;
gD17   void g() {
18     f(); // expected-error {{ambiguous conversion from derived class 'D' to base class 'B1'}}
19     f(0); // ok
20     f(0.0); // ok
21     // FIXME next line should be well-formed
22     int B1::* mpB1 = &D::i; // expected-error {{non-static member 'i' found in multiple base-class subobjects of type 'B1'}}
23     int D::* mpD = &D::i; // expected-error {{non-static member 'i' found in multiple base-class subobjects of type 'B1'}}
24   }
25 };
26 
27 namespace GH80435 {
28 struct A {
29   void *data; // expected-note {{member found by ambiguous name lookup}}
30 };
31 
32 class B {
33   void *data; // expected-note {{member found by ambiguous name lookup}}
34 };
35 
36 struct C : A, B {};
37 
38 decltype(C().data) x; // expected-error {{member 'data' found in multiple base classes of different types}}
39 
40 struct D { // expected-note {{candidate constructor (the implicit copy constructor) not viable: no known conversion from 'C' to 'const D' for 1st argument}}
41            // expected-note@-1{{candidate constructor (the implicit move constructor) not viable: no known conversion from 'C' to 'D' for 1st argument}}
42   template <typename Container, decltype(Container().data) = 0 >
43   D(Container); // expected-note {{candidate template ignored: substitution failure [with Container = C]: member 'data' found in multiple base classes of different types}}
44 };
45 
46 D y(C{}); // expected-error {{no matching constructor for initialization of 'D'}}
47 }
48