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comparison gcc/testsuite/g++.dg/warn/Wmismatched-tags-4.C @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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145:1830386684a0 152:2b5abeee2509
1 /* PR c++/94078 - bogus and missing -Wmismatched-tags on an instance
2 of a template
3 Verify that -Wmismatched-tags is issued for redeclarations and
4 instances of the appropriate primary template or specialization.
5 { dg-do compile }
6 { dg-options "-Wmismatched-tags" } */
7
8 // Exercise explicit specialization.
9 template <class> class S1;
10 template <> struct S1<int>;
11
12 template <class> class S1;
13 template <class> struct S1; // { dg-warning "\\\[-Wmismatched-tags" }
14
15 template <> class S1<char>;
16 template <> struct S1<char>; // { dg-warning "\\\[-Wmismatched-tags" }
17
18 template <> class S1<int>; // { dg-warning "\\\[-Wmismatched-tags" }
19 template <> struct S1<int>;
20
21 extern S1<void> s1v;
22 extern class S1<void> s1v;
23 extern struct S1<void> s1v; // { dg-warning "\\\[-Wmismatched-tags" }
24
25 extern S1<int> s1i;
26 extern class S1<int> s1i; // { dg-warning "\\\[-Wmismatched-tags" }
27 extern struct S1<int> s1i;
28
29 extern S1<char> s1c;
30 extern class S1<char> s1c;
31 extern struct S1<char> s1c; // { dg-warning "\\\[-Wmismatched-tags" }
32
33
34 // Exercise partial specialization.
35 template <class> struct S2;
36 template <class T> class S2<const T>;
37
38 template <class> class S2; // { dg-warning "\\\[-Wmismatched-tags" }
39 template <class> struct S2;
40
41 template <class T> class S2<const T>;
42 template <class T> struct S2<const T>;// { dg-warning "\\\[-Wmismatched-tags" }
43
44 extern S2<int> s2i;
45 extern class S2<int> s2i; // { dg-warning "\\\[-Wmismatched-tags" }
46 extern struct S2<int> s2i;
47
48 extern S2<const int> s2ci;
49 extern class S2<const int> s2ci;
50 extern struct S2<const int> s2ci; // { dg-warning "\\\[-Wmismatched-tags" }
51
52
53 template <class> struct S3;
54 template <class T> class S3<T*>;
55 template <class T> struct S3<T&>;
56
57 template <class> class S3; // { dg-warning "\\\[-Wmismatched-tags" }
58 template <class> struct S3;
59
60 template <class T> class S3<T*>;
61 template <class T> struct S3<T*>; // { dg-warning "\\\[-Wmismatched-tags" }
62
63 template <class T> class S3<T&>; // { dg-warning "\\\[-Wmismatched-tags" }
64 template <class T> struct S3<T&>;
65
66 extern S3<int> s3i;
67 extern class S3<int> s3i; // { dg-warning "\\\[-Wmismatched-tags" }
68 extern struct S3<int> s3i;
69
70 extern S3<int*> s3p;
71 extern class S3<int*> s3p;
72 extern struct S3<int*> s3p; // { dg-warning "\\\[-Wmismatched-tags" }
73
74 extern S3<int&> s3r;
75 extern class S3<int&> s3r; // { dg-warning "\\\[-Wmismatched-tags" }
76 extern struct S3<int&> s3r;
77
78 // Repeat exactly the same as above.
79 extern S3<int> s3i;
80 extern class S3<int> s3i; // { dg-warning "\\\[-Wmismatched-tags" }
81 extern struct S3<int> s3i;
82
83 extern S3<int*> s3p;
84 extern class S3<int*> s3p;
85 extern struct S3<int*> s3p; // { dg-warning "\\\[-Wmismatched-tags" }
86
87 extern S3<int&> s3r;
88 extern class S3<int&> s3r; // { dg-warning "\\\[-Wmismatched-tags" }
89 extern struct S3<int&> s3r;
90
91 // Repeat the same as above just with different type.
92 extern S3<long> s3l;
93 extern class S3<long> s3l; // { dg-warning "\\\[-Wmismatched-tags" }
94 extern struct S3<long> s3l;
95
96 extern S3<long*> s3lp;
97 extern class S3<long*> s3lp;
98 extern struct S3<long*> s3lp; // { dg-warning "\\\[-Wmismatched-tags" }
99
100 extern S3<long&> s3lr;
101 extern class S3<long&> s3lr; // { dg-warning "\\\[-Wmismatched-tags" }
102 extern struct S3<long&> s3lr;
103
104 // Repeat with the class-keys swapped.
105 extern S3<long> s3l;
106 extern struct S3<long> s3l;
107 extern class S3<long> s3l; // { dg-warning "\\\[-Wmismatched-tags" }
108
109 extern S3<long*> s3lp;
110 extern struct S3<long*> s3lp; // { dg-warning "\\\[-Wmismatched-tags" }
111 extern class S3<long*> s3lp;
112
113 extern S3<long&> s3lr;
114 extern struct S3<long&> s3lr;
115 extern class S3<long&> s3lr; // { dg-warning "\\\[-Wmismatched-tags" }
116
117
118 namespace N
119 {
120 template <class> struct A;
121
122 extern class A<int> ai; // { dg-warning "\\\[-Wmismatched-tags" }
123 extern struct A<int> ai;
124
125 typedef class A<int> AI; // { dg-warning "\\\[-Wmismatched-tags" }
126 typedef struct A<int> AI;
127
128 template <class> struct B;
129 template <> class B<int>;
130 template <> struct B<char>;
131
132 extern class B<int> bi;
133 extern struct B<int> bi; // { dg-warning "\\\[-Wmismatched-tags" }
134
135 extern class B<char> bc; // { dg-warning "\\\[-Wmismatched-tags" }
136 extern struct B<char> bc;
137
138 typedef class B<char> BC; // { dg-warning "\\\[-Wmismatched-tags" }
139 typedef struct B<char> BC;
140
141 }