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
|
// RUN: %clang_cc1 -std=c++2b -fsyntax-only -verify=cxx2b,new %s
// RUN: %clang_cc1 -std=c++2b -fsyntax-only -fms-compatibility -verify=cxx2b,old %s
// RUN: %clang_cc1 -std=c++20 -fsyntax-only -verify=cxx20,old %s
// FIXME: This is a test for a temporary workaround where we disable simpler implicit moves
// in the STL when compiling with -fms-compatibility, because of issues with the
// implementation there.
// Feel free to delete this file when the workaround is not needed anymore.
#if __INCLUDE_LEVEL__ == 0
#if __cpluscplus > 202002L && __cpp_implicit_move < 202011L
#error "__cpp_implicit_move not defined correctly"
#endif
struct nocopy {
nocopy(nocopy &&);
};
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
namespace {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
namespace std {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
namespace {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&mt1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &mt2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy mt3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#include __FILE__
#define SYSTEM
#include __FILE__
#elif !defined(SYSTEM)
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace std {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
namespace {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&ut1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &ut2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy ut3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#else
#pragma GCC system_header
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace std {
int &&st1(int &&x) { return x; } // cxx20-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // cxx2b-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace std
} // namespace foo
namespace std {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
namespace {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace
namespace foo {
int &&st1(int &&x) { return x; } // old-error {{cannot bind to lvalue}}
int &st2(int &&x) { return x; } // new-error {{cannot bind to a temporary}}
nocopy st3(nocopy x) { return x; }
} // namespace foo
} // namespace std
#endif
|
