1 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
2
3 struct X0 { // expected-note 8{{candidate}}
4 X0(int*, float*); // expected-note 4{{candidate}}
5 };
6
7 template<typename T, typename U>
f0(T t,U u)8 X0 f0(T t, U u) {
9 X0 x0(t, u); // expected-error{{no matching}}
10 return X0(t, u); // expected-error{{no matching}}
11 }
12
test_f0(int * ip,float * fp,double * dp)13 void test_f0(int *ip, float *fp, double *dp) {
14 f0(ip, fp);
15 f0(ip, dp); // expected-note{{instantiation}}
16 }
17
18 template<typename Ret, typename T, typename U>
19 Ret f1(Ret *retty, T t, U u) {
20 Ret r0(t, u); // expected-error{{no matching}}
21 return Ret(t, u); // expected-error{{no matching}}
22 }
23
test_f1(X0 * x0,int * ip,float * fp,double * dp)24 void test_f1(X0 *x0, int *ip, float *fp, double *dp) {
25 f1(x0, ip, fp);
26 f1(x0, ip, dp); // expected-note{{instantiation}}
27 }
28
29 namespace PR6457 {
XPR6457::X30 template <typename T> struct X { explicit X(T* p = 0) { }; };
31 template <typename T> struct Y { Y(int, const T& x); };
32 struct A { };
33 template <typename T>
34 struct B {
BPR6457::B35 B() : y(0, X<A>()) { }
36 Y<X<A> > y;
37 };
38 B<int> b;
39 }
40
41 namespace PR6657 {
42 struct X
43 {
XPR6657::X44 X (int, int) { }
45 };
46
47 template <typename>
f0()48 void f0()
49 {
50 X x = X(0, 0);
51 }
52
f1()53 void f1()
54 {
55 f0<int>();
56 }
57 }
58
59 // Instantiate out-of-line definitions of static data members which complete
60 // types through an initializer even when the only use of the member that would
61 // cause instantiation is in an unevaluated context, but one requiring its
62 // complete type.
63 namespace PR10001 {
64 template <typename T> struct S {
65 static const int arr[];
66 static const int x;
67 static int f();
68 };
69
70 template <typename T> const int S<T>::arr[] = { 1, 2, 3 };
71 template <typename T> const int S<T>::x = sizeof(arr) / sizeof(arr[0]);
f()72 template <typename T> int S<T>::f() { return x; }
73
74 int x = S<int>::f();
75 }
76
77 namespace PR7985 {
78 template<int N> struct integral_c { };
79
80 template <typename T, int N>
array_lengthof(T (& x)[N])81 integral_c<N> array_lengthof(T (&x)[N]) { return integral_c<N>(); } // expected-note 2{{candidate template ignored: could not match 'T [N]' against 'const Data<}}
82
83 template<typename T>
84 struct Data {
85 T x;
86 };
87
88 template<typename T>
89 struct Description {
90 static const Data<T> data[];
91 };
92
93 template<typename T>
94 const Data<T> Description<T>::data[] = {{ 1 }}; // expected-error{{cannot initialize a member subobject of type 'int *' with an rvalue of type 'int'}}
95
96 template<>
97 const Data<float*> Description<float*>::data[];
98
test()99 void test() {
100 integral_c<1> ic1 = array_lengthof(Description<int>::data);
101 (void)sizeof(array_lengthof(Description<float>::data));
102
103 sizeof(array_lengthof( // expected-error{{no matching function for call to 'array_lengthof'}}
104 Description<int*>::data // expected-note{{in instantiation of static data member 'PR7985::Description<int *>::data' requested here}}
105 ));
106
107 array_lengthof(Description<float*>::data); // expected-error{{no matching function for call to 'array_lengthof'}}
108 }
109 }
110
111 namespace PR13064 {
112 // Ensure that in-class direct-initialization is instantiated as
113 // direct-initialization and likewise copy-initialization is instantiated as
114 // copy-initialization.
115 struct A { explicit A(int); }; // expected-note{{here}}
116 template<typename T> struct B { T a { 0 }; };
117 B<A> b;
118 // expected-note@+1 {{in instantiation of default member initializer}}
119 template<typename T> struct C { T a = { 0 }; }; // expected-error{{explicit}}
120 C<A> c; // expected-note{{here}}
121 }
122
123 namespace PR16903 {
124 // Make sure we properly instantiate list-initialization.
125 template<typename T>
fun(T it)126 void fun (T it) {
127 int m = 0;
128 for (int i = 0; i < 4; ++i, ++it){
129 m |= long{char{*it}};
130 }
131 }
test()132 int test() {
133 char in[4] = {0,0,0,0};
134 fun(in);
135 }
136 }
137
138 namespace ReturnStmtIsInitialization {
139 struct X {
XReturnStmtIsInitialization::X140 X() {}
141 X(const X &) = delete;
142 };
f()143 template<typename T> X f() { return {}; }
144 auto &&x = f<void>();
145 }
146