1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
|
// RUN: %clang_cc1 -fsyntax-only -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
// This is just the test for [namespace.udecl]p4 with 'using'
// uniformly stripped out.
// C++03 [namespace.udecl]p4:
// A using-declaration used as a member-declaration shall refer to a
// member of a base class of the class being defined, shall refer to
// a member of an anonymous union that is a member of a base class
// of the class being defined, or shall refer to an enumerator for
// an enumeration type that is a member of a base class of the class
// being defined.
// There is no directly analogous paragraph in C++0x, and the feature
// works sufficiently differently there that it needs a separate test.
namespace test0 {
namespace NonClass {
typedef int type;
struct hiding {};
int hiding;
static union { double union_member; };
enum tagname { enumerator };
}
class Test0 {
NonClass::type; // expected-error {{not a class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
NonClass::hiding; // expected-error {{not a class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
NonClass::union_member; // expected-error {{not a class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
NonClass::enumerator; // expected-error {{not a class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
};
}
struct Opaque0 {};
namespace test1 {
struct A {
typedef int type;
struct hiding {}; // expected-note {{previous use is here}}
Opaque0 hiding;
union { double union_member; };
enum tagname { enumerator };
};
struct B : A {
A::type;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::hiding;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::union_member;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::enumerator;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::tagname;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
void test0() {
type t = 0;
}
void test1() {
typedef struct A::hiding local;
struct hiding _ = local();
}
void test2() {
union hiding _; // expected-error {{tag type that does not match previous}}
}
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
void test4() {
enum tagname _ = enumerator;
}
void test5() {
Opaque0 _ = hiding;
}
};
}
namespace test2 {
struct A {
typedef int type;
struct hiding {}; // expected-note {{previous use is here}}
int hiding;
union { double union_member; };
enum tagname { enumerator };
};
template <class T> struct B : A {
A::type;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::hiding;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::union_member;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::enumerator;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A::tagname;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
void test0() {
type t = 0;
}
void test1() {
typedef struct A::hiding local;
struct hiding _ = local();
}
void test2() {
union hiding _; // expected-error {{tag type that does not match previous}}
}
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
void test4() {
enum tagname _ = enumerator;
}
void test5() {
Opaque0 _ = hiding;
}
};
}
namespace test3 {
struct hiding {};
template <class T> struct A {
typedef int type; // expected-note {{target of using declaration}}
struct hiding {};
Opaque0 hiding;
union { double union_member; };
enum tagname { enumerator }; // expected-note {{target of using declaration}}
};
template <class T> struct B : A<T> {
A<T>::type; // expected-error {{dependent using declaration resolved to type without 'typename'}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A<T>::hiding;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A<T>::union_member;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A<T>::enumerator;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
A<T>::tagname; // expected-error {{dependent using declaration resolved to type without 'typename'}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
// FIXME: re-enable these when the various bugs involving tags are fixed
#if 0
void test1() {
typedef struct A<T>::hiding local;
struct hiding _ = local();
}
void test2() {
typedef struct A<T>::hiding local;
union hiding _ = local();
}
#endif
void test3() {
char array[sizeof(union_member) == sizeof(double) ? 1 : -1];
}
#if 0
void test4() {
enum tagname _ = enumerator;
}
#endif
void test5() {
Opaque0 _ = hiding;
}
};
template struct B<int>; // expected-note {{in instantiation}}
}
namespace test4 {
struct Base {
int foo();
};
struct Unrelated {
int foo();
};
struct Subclass : Base {
};
namespace InnerNS {
int foo();
}
// We should be able to diagnose these without instantiation.
template <class T> struct C : Base {
InnerNS::foo; // expected-error {{not a class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
Base::bar; // expected-error {{no member named 'bar'}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
Unrelated::foo; // expected-error {{not a base class}}
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
C::foo; // legal in C++03
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
// expected-error@-5 {{using declaration refers to its own class}}
#endif
Subclass::foo; // legal in C++03
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
// expected-error@-5 {{using declaration refers into 'Subclass::', which is not a base class of 'C'}}
#endif
int bar();
#if __cplusplus <= 199711L
//expected-note@-2 {{target of using declaration}}
#endif
C::bar;
#if __cplusplus <= 199711L
// expected-warning@-2 {{access declarations are deprecated; use using declarations instead}}
#else
// expected-error@-4 {{ISO C++11 does not allow access declarations; use using declarations instead}}
#endif
// expected-error@-6 {{using declaration refers to its own class}}
};
}
|
