1 | // RUN: %clang_cc1 -fsyntax-only -verify %s |
2 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s |
3 | // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s |
4 | template<typename T, typename U> |
5 | struct is_same { |
6 | static const bool value = false; |
7 | }; |
8 | |
9 | template<typename T> |
10 | struct is_same<T, T> { |
11 | static const bool value = true; |
12 | }; |
13 | |
14 | template<typename MetaFun, typename T1, typename T2> |
15 | struct metafun_apply2 { |
16 | typedef typename MetaFun::template apply<T1, T2> inner; |
17 | typedef typename inner::type type; |
18 | }; |
19 | |
20 | template<typename T, typename U> struct pair; |
21 | |
22 | struct make_pair { |
23 | template<typename T1, typename T2> |
24 | struct apply { |
25 | typedef pair<T1, T2> type; |
26 | }; |
27 | }; |
28 | |
29 | int a0[is_same<metafun_apply2<make_pair, int, float>::type, |
30 | pair<int, float> >::value? 1 : -1]; |
31 | int a1[is_same< |
32 | typename make_pair::template apply<int, float>, |
33 | #if __cplusplus <= 199711L // C++03 and earlier modes |
34 | // expected-warning@-2 {{'template' keyword outside of a template}} |
35 | // expected-warning@-3 {{'typename' occurs outside of a template}} |
36 | #endif |
37 | make_pair::apply<int, float> |
38 | >::value? 1 : -1]; |
39 | |
40 | template<typename MetaFun> |
41 | struct swap_and_apply2 { |
42 | template<typename T1, typename T2> |
43 | struct apply { |
44 | typedef typename MetaFun::template apply<T2, T1> new_metafun; |
45 | typedef typename new_metafun::type type; |
46 | }; |
47 | }; |
48 | |
49 | int a2[is_same<swap_and_apply2<make_pair>::apply<int, float>::type, |
50 | pair<float, int> >::value? 1 : -1]; |
51 | |
52 | template<typename MetaFun> |
53 | struct swap_and_apply2b { |
54 | template<typename T1, typename T2> |
55 | struct apply { |
56 | typedef typename MetaFun::template apply<T2, T1>::type type; |
57 | }; |
58 | }; |
59 | |
60 | int a3[is_same<swap_and_apply2b<make_pair>::apply<int, float>::type, |
61 | pair<float, int> >::value? 1 : -1]; |
62 | |
63 | template<typename T> |
64 | struct X0 { |
65 | template<typename U, typename V> |
66 | struct Inner; |
67 | |
68 | void f0(X0<T>::Inner<T*, T&>); // expected-note{{here}} |
69 | void f0(typename X0<T>::Inner<T*, T&>); // expected-error{{redecl}} |
70 | |
71 | void f1(X0<T>::Inner<T*, T&>); // expected-note{{here}} |
72 | void f1(typename X0<T>::template Inner<T*, T&>); // expected-error{{redecl}} |
73 | |
74 | void f2(typename X0<T>::Inner<T*, T&>::type); // expected-note{{here}} |
75 | void f2(typename X0<T>::template Inner<T*, T&>::type); // expected-error{{redecl}} |
76 | }; |
77 | |
78 | namespace PR6236 { |
79 | template<typename T, typename U> struct S { }; |
80 | |
81 | template<typename T> struct S<T, T> { |
82 | template<typename U> struct K { }; |
83 | |
84 | void f() { |
85 | typedef typename S<T, T>::template K<T> Foo; |
86 | } |
87 | }; |
88 | } |
89 | |
90 | namespace PR6268 { |
91 | template <typename T> |
92 | struct Outer { |
93 | template <typename U> |
94 | struct Inner {}; |
95 | |
96 | template <typename U> |
97 | typename Outer<T>::template Inner<U> |
98 | foo(typename Outer<T>::template Inner<U>); |
99 | }; |
100 | |
101 | template <typename T> |
102 | template <typename U> |
103 | typename Outer<T>::template Inner<U> |
104 | Outer<T>::foo(typename Outer<T>::template Inner<U>) { |
105 | return Inner<U>(); |
106 | } |
107 | } |
108 | |
109 | namespace PR6463 { |
110 | struct B { typedef int type; }; // expected-note 2{{member found by ambiguous name lookup}} |
111 | struct C { typedef int type; }; // expected-note 2{{member found by ambiguous name lookup}} |
112 | |
113 | template<typename T> |
114 | struct A : B, C { |
115 | type& a(); // expected-error{{found in multiple base classes}} |
116 | int x; |
117 | }; |
118 | |
119 | // FIXME: Improve source location info here. |
120 | template<typename T> |
121 | typename A<T>::type& A<T>::a() { // expected-error{{found in multiple base classes}} |
122 | return x; |
123 | } |
124 | } |
125 | |
126 | namespace PR7419 { |
127 | template <typename T> struct S { |
128 | typedef typename T::Y T2; |
129 | typedef typename T2::Z T3; |
130 | typedef typename T3::W T4; |
131 | T4 *f(); |
132 | |
133 | typedef typename T::template Y<int> TT2; |
134 | typedef typename TT2::template Z<float> TT3; |
135 | typedef typename TT3::template W<double> TT4; |
136 | TT4 g(); |
137 | }; |
138 | |
139 | template <typename T> typename T::Y::Z::W *S<T>::f() { } |
140 | template <typename T> typename T::template Y<int>::template Z<float>::template W<double> S<T>::g() { } |
141 | } |
142 | |
143 | namespace rdar8740998 { |
144 | template<typename T> |
145 | struct X : public T { |
146 | using T::iterator; // expected-note{{add 'typename' to treat this using declaration as a type}} \ |
147 | // expected-error{{dependent using declaration resolved to type without 'typename'}} |
148 | |
149 | void f() { |
150 | typename X<T>::iterator i; // expected-error{{typename specifier refers to a dependent using declaration for a value 'iterator' in 'X<T>'}} |
151 | } |
152 | }; |
153 | |
154 | struct HasIterator { |
155 | typedef int *iterator; // expected-note{{target of using declaration}} |
156 | }; |
157 | |
158 | void test_X(X<HasIterator> xi) { // expected-note{{in instantiation of template class}} |
159 | xi.f(); |
160 | } |
161 | } |
162 | |
163 | namespace rdar9068589 { |
164 | // From GCC PR c++/13950 |
165 | template <class T> struct Base {}; |
166 | template <class T> struct Derived: public Base<T> { |
167 | typename Derived::template Base<double>* p1; |
168 | }; |
169 | } |
170 | |