1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
3
4 template<class T> struct A { A(); };
5 template<class T> int &f(T);
6 template<class T> float &f(T*);
7 template<class T> double &f(const T*);
8
9 template<class T> void g(T); // expected-note{{candidate}}
10 template<class T> void g(T&); // expected-note{{candidate}}
11
12 template<class T> int &h(const T&);
13 template<class T> float &h(A<T>&);
14
m()15 void m() {
16 const int *p;
17 double &dr1 = f(p);
18 float x;
19 g(x); // expected-error{{ambiguous}}
20 A<int> z;
21 float &fr1 = h(z);
22 const A<int> z2;
23 int &ir1 = h(z2);
24 }
25
26
27 namespace core_26909 {
28 template<typename T> struct A {};
29 template<typename T, typename U> void f(T&, U); // expected-note {{candidate}}
30 template<typename T, typename U> void f(T&&, A<U>); // expected-note {{candidate}} expected-warning 0-1{{extension}}
31 template<typename T, typename U> void g(const T&, U); // expected-note {{candidate}}
32 template<typename T, typename U> void g(T&, A<U>); // expected-note {{candidate}}
33
h(int a,const char b,A<int> c)34 void h(int a, const char b, A<int> c) {
35 f(a, c); // expected-error{{ambiguous}}
36 g(b, c); // expected-error{{ambiguous}}
37 }
38 }
39
40 namespace PR22435 {
41 template<typename T, typename U> void foo(void (*)(T), const U &); // expected-note {{candidate}}
42 template<typename T, typename U> bool foo(void (*)(T &), U &); // expected-note {{candidate}}
bar(const int x)43 void bar(const int x) { bool b = foo<char>(0, x); } // expected-error {{ambiguous}}
44 }
45