temp_class_spec.cpp revision f8fd82ba49827db0f6a6ba00c55a7b56b12a19fa 
1// RUN: %clang_cc1 -fsyntax-only -verify %s
2template<typename T>
3struct is_pointer {
4  static const bool value = false;
5};
6
7template<typename T>
8struct is_pointer<T*> {
9  static const bool value = true;
10};
11
12template<typename T>
13struct is_pointer<const T*> {
14  static const bool value = true;
15};
16
17int array0[is_pointer<int>::value? -1 : 1];
18int array1[is_pointer<int*>::value? 1 : -1];
19int array2[is_pointer<const int*>::value? 1 : -1];
20
21template<typename T>
22struct is_lvalue_reference {
23  static const bool value = false;
24};
25
26template<typename T>
27struct is_lvalue_reference<T&> {
28  static const bool value = true;
29};
30
31int lvalue_ref0[is_lvalue_reference<int>::value? -1 : 1];
32int lvalue_ref1[is_lvalue_reference<const int&>::value? 1 : -1];
33
34template<typename T>
35struct is_const {
36  static const bool value = false;
37};
38
39template<typename T>
40struct is_const<const T> {
41  static const bool value = true;
42};
43
44int is_const0[is_const<int>::value? -1 : 1];
45int is_const1[is_const<const int>::value? 1 : -1];
46int is_const2[is_const<const volatile int>::value? 1 : -1];
47int is_const3[is_const<const int [3]>::value? 1 : -1];
48int is_const4[is_const<const volatile int[3]>::value? 1 : -1];
49int is_const5[is_const<volatile int[3]>::value? -1 : 1];
50
51template<typename T>
52struct is_volatile {
53  static const bool value = false;
54};
55
56template<typename T>
57struct is_volatile<volatile T> {
58  static const bool value = true;
59};
60
61int is_volatile0[is_volatile<int>::value? -1 : 1];
62int is_volatile1[is_volatile<volatile int>::value? 1 : -1];
63int is_volatile2[is_volatile<const volatile int>::value? 1 : -1];
64int is_volatile3[is_volatile<volatile char[3]>::value? 1 : -1];
65
66template<typename T, typename U>
67struct is_same {
68  static const bool value = false;
69};
70
71template<typename T>
72struct is_same<T, T> {
73  static const bool value = true;
74};
75
76typedef int INT;
77typedef INT* int_ptr;
78
79int is_same0[is_same<int, int>::value? 1 : -1];
80int is_same1[is_same<int, INT>::value? 1 : -1];
81int is_same2[is_same<const int, int>::value? -1 : 1];
82int is_same3[is_same<int_ptr, int>::value? -1 : 1];
83
84template<typename T>
85struct remove_reference {
86  typedef T type;
87};
88
89template<typename T>
90struct remove_reference<T&> {
91  typedef T type;
92};
93
94int remove_ref0[is_same<remove_reference<int>::type, int>::value? 1 : -1];
95int remove_ref1[is_same<remove_reference<int&>::type, int>::value? 1 : -1];
96
97template<typename T>
98struct remove_const {
99  typedef T type;
100};
101
102template<typename T>
103struct remove_const<const T> {
104  typedef T type;
105};
106
107int remove_const0[is_same<remove_const<const int>::type, int>::value? 1 : -1];
108int remove_const1[is_same<remove_const<const int[3]>::type, int[3]>::value? 1 : -1];
109
110template<typename T>
111struct is_incomplete_array {
112  static const bool value = false;
113};
114
115template<typename T>
116struct is_incomplete_array<T[]> {
117  static const bool value = true;
118};
119
120int incomplete_array0[is_incomplete_array<int>::value ? -1 : 1];
121int incomplete_array1[is_incomplete_array<int[1]>::value ? -1 : 1];
122int incomplete_array2[is_incomplete_array<bool[]>::value ? 1 : -1];
123int incomplete_array3[is_incomplete_array<int[]>::value ? 1 : -1];
124
125template<typename T>
126struct is_array_with_4_elements {
127  static const bool value = false;
128};
129
130template<typename T>
131struct is_array_with_4_elements<T[4]> {
132  static const bool value = true;
133};
134
135int array_with_4_elements0[is_array_with_4_elements<int[]>::value ? -1 : 1];
136int array_with_4_elements1[is_array_with_4_elements<int[1]>::value ? -1 : 1];
137int array_with_4_elements2[is_array_with_4_elements<int[4]>::value ? 1 : -1];
138int array_with_4_elements3[is_array_with_4_elements<int[4][2]>::value ? 1 : -1];
139
140template<typename T>
141struct get_array_size;
142
143template<typename T, unsigned N>
144struct get_array_size<T[N]> {
145  static const unsigned value = N;
146};
147
148int array_size0[get_array_size<int[12]>::value == 12? 1 : -1];
149
150template<typename T>
151struct remove_extent {
152  typedef T type;
153};
154
155template<typename T>
156struct remove_extent<T[]> {
157  typedef T type;
158};
159
160template<typename T, unsigned N>
161struct remove_extent<T[N]> {
162  typedef T type;
163};
164
165int remove_extent0[is_same<remove_extent<int[][5]>::type, int[5]>::value? 1 : -1];
166int remove_extent1[is_same<remove_extent<const int[][5]>::type, const int[5]>::value? 1 : -1];
167
168template<typename T>
169struct is_unary_function {
170  static const bool value = false;
171};
172
173template<typename T, typename U>
174struct is_unary_function<T (*)(U)> {
175  static const bool value = true;
176};
177
178int is_unary_function0[is_unary_function<int>::value ? -1 : 1];
179int is_unary_function1[is_unary_function<int (*)()>::value ? -1 : 1];
180int is_unary_function2[is_unary_function<int (*)(int, bool)>::value ? -1 : 1];
181int is_unary_function3[is_unary_function<int (*)(bool)>::value ? 1 : -1];
182int is_unary_function4[is_unary_function<int (*)(int)>::value ? 1 : -1];
183
184template<typename T>
185struct is_unary_function_with_same_return_type_as_argument_type {
186  static const bool value = false;
187};
188
189template<typename T>
190struct is_unary_function_with_same_return_type_as_argument_type<T (*)(T)> {
191  static const bool value = true;
192};
193
194int is_unary_function5[is_unary_function_with_same_return_type_as_argument_type<int>::value ? -1 : 1];
195int is_unary_function6[is_unary_function_with_same_return_type_as_argument_type<int (*)()>::value ? -1 : 1];
196int is_unary_function7[is_unary_function_with_same_return_type_as_argument_type<int (*)(int, bool)>::value ? -1 : 1];
197int is_unary_function8[is_unary_function_with_same_return_type_as_argument_type<int (*)(bool)>::value ? -1 : 1];
198int is_unary_function9[is_unary_function_with_same_return_type_as_argument_type<int (*)(int)>::value ? 1 : -1];
199int is_unary_function10[is_unary_function_with_same_return_type_as_argument_type<int (*)(int, ...)>::value ? -1 : 1];
200int is_unary_function11[is_unary_function_with_same_return_type_as_argument_type<int (* const)(int)>::value ? -1 : 1];
201
202template<typename T>
203struct is_binary_function {
204  static const bool value = false;
205};
206
207template<typename R, typename T1, typename T2>
208struct is_binary_function<R(T1, T2)> {
209  static const bool value = true;
210};
211
212int is_binary_function0[is_binary_function<int(float, double)>::value? 1 : -1];
213
214template<typename T>
215struct is_member_pointer {
216  static const bool value = false;
217};
218
219template<typename T, typename Class>
220struct is_member_pointer<T Class::*> {
221  static const bool value = true;
222};
223
224struct X { };
225
226int is_member_pointer0[is_member_pointer<int X::*>::value? 1 : -1];
227int is_member_pointer1[is_member_pointer<const int X::*>::value? 1 : -1];
228int is_member_pointer2[is_member_pointer<int (X::*)()>::value? 1 : -1];
229int is_member_pointer3[is_member_pointer<int (X::*)(int) const>::value? 1 : -1];
230int is_member_pointer4[is_member_pointer<int (X::**)(int) const>::value? -1 : 1];
231int is_member_pointer5[is_member_pointer<int>::value? -1 : 1];
232
233template<typename T>
234struct is_member_function_pointer {
235  static const bool value = false;
236};
237
238template<typename T, typename Class>
239struct is_member_function_pointer<T (Class::*)()> {
240  static const bool value = true;
241};
242
243template<typename T, typename Class>
244struct is_member_function_pointer<T (Class::*)() const> {
245  static const bool value = true;
246};
247
248template<typename T, typename Class>
249struct is_member_function_pointer<T (Class::*)() volatile> {
250  static const bool value = true;
251};
252
253template<typename T, typename Class>
254struct is_member_function_pointer<T (Class::*)() const volatile> {
255  static const bool value = true;
256};
257
258template<typename T, typename Class, typename A1>
259struct is_member_function_pointer<T (Class::*)(A1)> {
260  static const bool value = true;
261};
262
263template<typename T, typename Class, typename A1>
264struct is_member_function_pointer<T (Class::*)(A1) const> {
265  static const bool value = true;
266};
267
268template<typename T, typename Class, typename A1>
269struct is_member_function_pointer<T (Class::*)(A1) volatile> {
270  static const bool value = true;
271};
272
273template<typename T, typename Class, typename A1>
274struct is_member_function_pointer<T (Class::*)(A1) const volatile> {
275  static const bool value = true;
276};
277
278int is_member_function_pointer0[
279                          is_member_function_pointer<int X::*>::value? -1 : 1];
280int is_member_function_pointer1[
281                      is_member_function_pointer<int (X::*)()>::value? 1 : -1];
282int is_member_function_pointer2[
283                      is_member_function_pointer<X (X::*)(X&)>::value? 1 : -1];
284int is_member_function_pointer3[
285           is_member_function_pointer<int (X::*)() const>::value? 1 : -1];
286int is_member_function_pointer4[
287           is_member_function_pointer<int (X::*)(float) const>::value? 1 : -1];
288
289// Test substitution of non-dependent arguments back into the template
290// argument list of the class template partial specialization.
291template<typename T, typename ValueType = T>
292struct is_nested_value_type_identity {
293  static const bool value = false;
294};
295
296template<typename T>
297struct is_nested_value_type_identity<T, typename T::value_type> {
298  static const bool value = true;
299};
300
301template<typename T>
302struct HasValueType {
303  typedef T value_type;
304};
305
306struct HasIdentityValueType {
307  typedef HasIdentityValueType value_type;
308};
309
310struct NoValueType { };
311
312int is_nested_value_type_identity0[
313            is_nested_value_type_identity<HasValueType<int> >::value? -1 : 1];
314int is_nested_value_type_identity1[
315          is_nested_value_type_identity<HasIdentityValueType>::value? 1 : -1];
316int is_nested_value_type_identity2[
317                   is_nested_value_type_identity<NoValueType>::value? -1 : 1];
318
319
320// C++ [temp.class.spec]p4:
321template<class T1, class T2, int I> class A { }; //#1
322template<class T, int I> class A<T, T*, I> { }; //#2
323template<class T1, class T2, int I> class A<T1*, T2, I> { }; //#3
324template<class T> class A<int, T*, 5> { }; //#4
325template<class T1, class T2, int I> class A<T1, T2*, I> { }; //#5
326
327// Redefinition of class template partial specializations
328template<typename T, T N, typename U> class A0;
329
330template<typename T, T N> class A0<T, N, int> { }; // expected-note{{here}}
331template<typename T, T N> class A0<T, N, int>;
332template<typename T, T N> class A0<T, N, int> { }; // expected-error{{redef}}
333
334namespace PR6025 {
335  template< int N > struct A;
336
337  namespace N
338  {
339    template< typename F >
340    struct B;
341  }
342
343  template< typename Protect, typename Second >
344  struct C;
345
346  template <class T>
347  struct C< T, A< N::B<T>::value > >
348  {
349  };
350}
351
352namespace PR6181 {
353  template <class T>
354  class a;
355
356  class s;
357
358  template <class U>
359  class a<s> // expected-error{{partial specialization of 'a' does not use any of its template parameters}}
360  {
361  };
362
363}
364