1 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11
2
3 enum E2 { };
4
5 struct A {
6 operator E2&(); // expected-note 3 {{candidate function}}
7 };
8
9 struct B {
10 operator E2&(); // expected-note 3 {{candidate function}}
11 };
12
13 struct C : B, A {
14 };
15
test(C c)16 void test(C c) {
17 const E2 &e2 = c; // expected-error {{reference initialization of type 'const E2 &' with initializer of type 'C' is ambiguous}}
18 }
19
20 void foo(const E2 &);// expected-note{{passing argument to parameter here}}
21
re(C c)22 const E2 & re(C c) {
23 foo(c); // expected-error {{reference initialization of type 'const E2 &' with initializer of type 'C' is ambiguous}}
24
25 return c; // expected-error {{reference initialization of type 'const E2 &' with initializer of type 'C' is ambiguous}}
26 }
27
28 namespace CWG2352 {
29 void f(const int * const &) = delete;
30 void f(int *);
31
32 void g(int * &);
33 void g(const int *) = delete;
34
35 void h1(int *const * const &);
36 void h1(const int *const *) = delete;
37 void h2(const int *const * const &) = delete;
38 void h2(int *const *);
39
test()40 void test() {
41 int *x;
42 // Under CWG2352, this became ambiguous. We order by qualification
43 // conversion even when comparing a reference binding to a
44 // non-reference-binding.
45 f(x);
46 g(x);
47 h1(&x);
48 h2(&x);
49 }
50 }
51