1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2 template<typename T>
3 int &f0(T);
4
5 template<typename T>
6 float &f0(T*);
7
test_f0(int i,int * ip)8 void test_f0(int i, int *ip) {
9 int &ir = f0(i);
10 float &fr = f0(ip);
11 }
12
13 template<typename T, typename U>
14 int &f1(T, U);
15
16 template<typename T>
17 float &f1(T, T);
18
test_f1(int i,float f)19 void test_f1(int i, float f) {
20 int &ir = f1(i, f);
21 float &fr1 = f1(i, i);
22 float &fr2 = f1(f, f);
23 }
24
25 template<typename T, typename U>
26 struct A { };
27
28 template<typename T>
29 int &f2(T);
30
31 template<typename T, typename U>
32 float &f2(A<T, U>);
33
34 template<typename T>
35 double &f2(A<T, T>);
36
test_f2(int i,A<int,float> aif,A<int,int> aii)37 void test_f2(int i, A<int, float> aif, A<int, int> aii) {
38 int &ir = f2(i);
39 float &fr = f2(aif);
40 double &dr = f2(aii);
41 }
42
43 template<typename T, typename U>
44 int &f3(T*, U); // expected-note{{candidate}}
45
46 template<typename T, typename U>
47 float &f3(T, U*); // expected-note{{candidate}}
48
test_f3(int i,int * ip,float * fp)49 void test_f3(int i, int *ip, float *fp) {
50 int &ir = f3(ip, i);
51 float &fr = f3(i, fp);
52 f3(ip, ip); // expected-error{{ambiguous}}
53 }
54
55 template<typename T>
56 int &f4(T&);
57
58 template<typename T>
59 float &f4(const T&);
60
test_f4(int i,const int ic)61 void test_f4(int i, const int ic) {
62 int &ir1 = f4(i);
63 float &fr1 = f4(ic);
64 }
65
66 template<typename T, typename U>
67 int &f5(T&, const U&); // expected-note{{candidate}}
68
69 template<typename T, typename U>
70 float &f5(const T&, U&); // expected-note{{candidate}}
71
test_f5(int i,const int ic)72 void test_f5(int i, const int ic) {
73 f5(i, i); // expected-error{{ambiguous}}
74 }
75
76 template<typename T, typename U>
77 int &f6(T&, U&);
78
79 template<typename T, typename U>
80 float &f6(const T&, U&);
81
test_f6(int i,const int ic)82 void test_f6(int i, const int ic) {
83 int &ir = f6(i, i);
84 float &fr = f6(ic, ic);
85 }
86
87 struct CrazyFun {
88 template<typename T, typename U> operator A<T, U>();
89 template<typename T> operator A<T, T>();
90 };
91
fun(CrazyFun cf)92 void fun(CrazyFun cf) {
93 A<int, float> aif = cf;
94 A<int, int> aii = cf;
95 }
96