1 // RUN: %clang_cc1 -fsyntax-only -verify %s
2
3 struct X {
4 template<typename T> T& f0(T);
5
g0X6 void g0(int i, double d) {
7 int &ir = f0(i);
8 double &dr = f0(d);
9 }
10
11 template<typename T> T& f1(T);
12 template<typename T, typename U> U& f1(T, U);
13
g1X14 void g1(int i, double d) {
15 int &ir1 = f1(i);
16 int &ir2 = f1(d, i);
17 int &ir3 = f1(i, i);
18 }
19 };
20
test_X_f0(X x,int i,float f)21 void test_X_f0(X x, int i, float f) {
22 int &ir = x.f0(i);
23 float &fr = x.f0(f);
24 }
25
test_X_f1(X x,int i,float f)26 void test_X_f1(X x, int i, float f) {
27 int &ir1 = x.f1(i);
28 int &ir2 = x.f1(f, i);
29 int &ir3 = x.f1(i, i);
30 }
31
test_X_f0_address()32 void test_X_f0_address() {
33 int& (X::*pm1)(int) = &X::f0;
34 float& (X::*pm2)(float) = &X::f0;
35 }
36
test_X_f1_address()37 void test_X_f1_address() {
38 int& (X::*pm1)(int) = &X::f1;
39 float& (X::*pm2)(float) = &X::f1;
40 int& (X::*pm3)(float, int) = &X::f1;
41 }
42
test_X_f0_explicit(X x,int i,long l)43 void test_X_f0_explicit(X x, int i, long l) {
44 int &ir1 = x.f0<int>(i);
45 int &ir2 = x.f0<>(i);
46 long &il1 = x.f0<long>(i);
47 }
48
49 // PR4608
a(x z)50 class A { template <class x> x a(x z) { return z+y; } int y; };
51
52 // PR5419
53 struct Functor {
54 template <typename T>
operator ()Functor55 bool operator()(const T& v) const {
56 return true;
57 }
58 };
59
test_Functor(Functor f)60 void test_Functor(Functor f) {
61 f(1);
62 }
63
64 // Instantiation on ->
65 template<typename T>
66 struct X1 {
67 template<typename U> U& get();
68 };
69
70 template<typename T> struct X2; // expected-note{{here}}
71
test_incomplete_access(X1<int> * x1,X2<int> * x2)72 void test_incomplete_access(X1<int> *x1, X2<int> *x2) {
73 float &fr = x1->get<float>();
74 (void)x2->get<float>(); // expected-error{{implicit instantiation of undefined template}}
75 }
76
77 // Instantiation of template template parameters in a member function
78 // template.
79 namespace TTP {
80 template<int Dim> struct X {
81 template<template<class> class M, class T> void f(const M<T>&);
82 };
83
84 template<typename T> struct Y { };
85
test_f(X<3> x,Y<int> y)86 void test_f(X<3> x, Y<int> y) { x.f(y); }
87 }
88
89 namespace PR7387 {
90 template <typename T> struct X {};
91
92 template <typename T1> struct S {
93 template <template <typename> class TC> void foo(const TC<T1>& arg);
94 };
95
96 template <typename T1> template <template <typename> class TC>
foo(const TC<T1> & arg)97 void S<T1>::foo(const TC<T1>& arg) {}
98
test(const X<int> & x)99 void test(const X<int>& x) {
100 S<int> s;
101 s.foo(x);
102 }
103 }
104