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
|
// RUN: %clang_cc1 -std=c++2c -fsyntax-only -verify %s
struct S {
void f() = delete("deleted (1)"); // expected-note {{explicitly marked deleted}}
template <typename T>
T g() = delete("deleted (2)"); // expected-note {{explicitly deleted}}
};
template <typename T>
struct TS {
T f() = delete("deleted (3)"); // expected-note {{explicitly marked deleted}}
template <typename U>
T g(U) = delete("deleted (4)"); // expected-note {{explicitly deleted}}
};
void f() = delete("deleted (5)"); // expected-note {{explicitly deleted}}
template <typename T>
T g() = delete("deleted (6)"); // expected-note {{explicitly deleted}}
template <typename T, typename U>
struct TSp {
T f() = delete("deleted (7)"); // expected-note 2 {{explicitly marked deleted}}
};
template <typename T>
struct TSp<T, int> {
T f() = delete("deleted (8)"); // expected-note {{explicitly marked deleted}}
};
template <>
struct TSp<int, int> {
int f() = delete("deleted (9)"); // expected-note {{explicitly marked deleted}}
};
void u1() = delete(L"\xFFFFFFFF"); // expected-error {{an unevaluated string literal cannot have an encoding prefix}} \
// expected-error {{invalid escape sequence '\xFFFFFFFF' in an unevaluated string literal}}
void u2() = delete(u"\U000317FF"); // expected-error {{an unevaluated string literal cannot have an encoding prefix}}
void u3() = delete("Ω"); // expected-note {{explicitly deleted}}
void u4() = delete("\u1234"); // expected-note {{explicitly deleted}}
void u5() = delete("\x1ff" // expected-error {{hex escape sequence out of range}} \
// expected-error {{invalid escape sequence '\x1ff' in an unevaluated string literal}}
"0\x123" // expected-error {{invalid escape sequence '\x123' in an unevaluated string literal}}
"fx\xfffff" // expected-error {{invalid escape sequence '\xfffff' in an unevaluated string literal}}
"goop");
void u6() = delete("\'\"\?\\\a\b\f\n\r\t\v"); // expected-note {{explicitly deleted}}
void u7() = delete("\xFF"); // expected-error {{invalid escape sequence '\xFF' in an unevaluated string literal}}
void u8() = delete("\123"); // expected-error {{invalid escape sequence '\123' in an unevaluated string literal}}
void u9() = delete("\pOh no, a Pascal string!"); // expected-warning {{unknown escape sequence '\p'}} \
// expected-error {{invalid escape sequence '\p' in an unevaluated string literal}}
// expected-note@+1 {{explicitly deleted}}
void u10() = delete(R"(a
\tb
c
)");
void u11() = delete("\u0080\u0081\u0082\u0083\u0099\u009A\u009B\u009C\u009D\u009E\u009F"); // expected-note {{explicitly deleted}}
//! Contains RTL/LTR marks
void u12() = delete("\u200Eabc\u200Fdef\u200Fgh"); // expected-note {{explicitly deleted}}
//! Contains ZWJ/regional indicators
void u13() = delete("🏳️🌈 🏴 🇪🇺"); // expected-note {{explicitly deleted}}
void h() {
S{}.f(); // expected-error {{attempt to use a deleted function: deleted (1)}}
S{}.g<int>(); // expected-error {{call to deleted member function 'g': deleted (2)}}
TS<int>{}.f(); // expected-error {{attempt to use a deleted function: deleted (3)}}
TS<int>{}.g<int>(0); // expected-error {{call to deleted member function 'g': deleted (4)}}
f(); // expected-error {{call to deleted function 'f': deleted (5)}}
g<int>(); // expected-error {{call to deleted function 'g': deleted (6)}}
TSp<double, double>{}.f(); // expected-error {{attempt to use a deleted function: deleted (7)}}
TSp<int, double>{}.f(); // expected-error {{attempt to use a deleted function: deleted (7)}}
TSp<double, int>{}.f(); // expected-error {{attempt to use a deleted function: deleted (8)}}
TSp<int, int>{}.f(); // expected-error {{attempt to use a deleted function: deleted (9)}}
u3(); // expected-error {{call to deleted function 'u3': Ω}}
u4(); // expected-error {{call to deleted function 'u4': ሴ}}
u6(); // expected-error {{call to deleted function 'u6': '"?\<U+0007><U+0008>}}
u10(); // expected-error {{call to deleted function 'u10': a\n\tb\nc\n}}
u11(); // expected-error {{call to deleted function 'u11': <U+0080><U+0081><U+0082><U+0083><U+0099><U+009A><U+009B><U+009C><U+009D><U+009E><U+009F>}}
u12(); // expected-error {{call to deleted function 'u12': abcdefgh}}
u13(); // expected-error {{call to deleted function 'u13': 🏳️🌈 🏴 🇪🇺}}
}
struct C {
C() = delete("deleted (C, Constructor)"); // expected-note {{explicitly marked deleted}}
C(int) = delete("deleted (C, C(int))"); // expected-note {{explicitly marked deleted}}
C(const C&) = delete("deleted (C, Copy Constructor)"); // expected-note {{explicitly marked deleted}}
C(C&&) = delete("deleted (C, Move Constructor)"); // expected-note {{explicitly marked deleted}}
C& operator=(const C&) = delete("deleted (C, Copy Assignment)"); // expected-note 2 {{explicitly deleted}}
C& operator=(C&&) = delete("deleted (C, Move Assignment)"); // expected-note {{explicitly deleted}} expected-note {{not viable}}
~C() = delete("deleted (C, Destructor)"); // expected-note {{explicitly marked deleted}}
void* operator new(__SIZE_TYPE__) = delete("deleted (C, New)"); // expected-note {{explicitly deleted}}
void operator delete(void*) = delete("deleted (C, Delete)"); // expected-note {{explicitly marked deleted}}
};
template <typename T, typename U>
struct TC {
TC() = delete("deleted (TC, Constructor)"); // expected-note {{explicitly marked deleted}}
TC(int) = delete("deleted (TC, TC(int))"); // expected-note {{explicitly marked deleted}}
TC(const TC&) = delete("deleted (TC, Copy Constructor)"); // expected-note {{explicitly marked deleted}}
TC(TC&&) = delete("deleted (TC, Move Constructor)"); // expected-note {{explicitly marked deleted}}
TC& operator=(const TC&) = delete("deleted (TC, Copy Assignment)"); // expected-note 2 {{explicitly deleted}}
TC& operator=(TC&&) = delete("deleted (TC, Move Assignment)"); // expected-note {{explicitly deleted}} expected-note {{not viable}}
~TC() = delete("deleted (TC, Destructor)"); // expected-note {{explicitly marked deleted}}
void* operator new(__SIZE_TYPE__) = delete("deleted (TC, New)"); // expected-note {{explicitly deleted}}
void operator delete(void*) = delete("deleted (TC, Delete)"); // expected-note {{explicitly marked deleted}}
};
template <typename T>
struct TC<T, int> {
TC() = delete("deleted (TC<T, int>, Constructor)"); // expected-note {{explicitly marked deleted}}
TC(int) = delete("deleted (TC<T, int>, TC(int))"); // expected-note {{explicitly marked deleted}}
TC(const TC&) = delete("deleted (TC<T, int>, Copy Constructor)"); // expected-note {{explicitly marked deleted}}
TC(TC&&) = delete("deleted (TC<T, int>, Move Constructor)"); // expected-note {{explicitly marked deleted}}
TC& operator=(const TC&) = delete("deleted (TC<T, int>, Copy Assignment)"); // expected-note 2 {{explicitly deleted}}
TC& operator=(TC&&) = delete("deleted (TC<T, int>, Move Assignment)"); // expected-note {{explicitly deleted}} expected-note {{not viable}}
~TC() = delete("deleted (TC<T, int>, Destructor)"); // expected-note {{explicitly marked deleted}}
void* operator new(__SIZE_TYPE__) = delete("deleted (TC<T, int>, New)"); // expected-note {{explicitly deleted}}
void operator delete(void*) = delete("deleted (TC<T, int>, Delete)"); // expected-note {{explicitly marked deleted}}
};
template <>
struct TC<int, int> {
TC() = delete("deleted (TC<int, int>, Constructor)"); // expected-note {{explicitly marked deleted}}
TC(int) = delete("deleted (TC<int, int>, TC(int))"); // expected-note {{explicitly marked deleted}}
TC(const TC&) = delete("deleted (TC<int, int>, Copy Constructor)"); // expected-note {{explicitly marked deleted}}
TC(TC&&) = delete("deleted (TC<int, int>, Move Constructor)"); // expected-note {{explicitly marked deleted}}
TC& operator=(const TC&) = delete("deleted (TC<int, int>, Copy Assignment)"); // expected-note 2 {{explicitly deleted}}
TC& operator=(TC&&) = delete("deleted (TC<int, int>, Move Assignment)"); // expected-note {{explicitly deleted}} expected-note {{not viable}}
~TC() = delete("deleted (TC<int, int>, Destructor)"); // expected-note {{explicitly marked deleted}}
void* operator new(__SIZE_TYPE__) = delete("deleted (TC<int, int>, New)"); // expected-note {{explicitly deleted}}
void operator delete(void*) = delete("deleted (TC<int, int>, Delete)"); // expected-note {{explicitly marked deleted}}
};
void special_members(
C& c1,
C& c2,
TC<double, double>& tc1,
TC<double, double>& tc2,
TC<double, int>& tc_int1,
TC<double, int>& tc_int2,
TC<int, int>& tc_int_int1,
TC<int, int>& tc_int_int2
) {
C{}; // expected-error {{call to deleted constructor of 'C': deleted (C, Constructor)}}
C{c1}; // expected-error {{call to deleted constructor of 'C': deleted (C, Copy Constructor)}}
C{static_cast<C&&>(c1)}; // expected-error {{call to deleted constructor of 'C': deleted (C, Move Constructor)}}
c1 = c2; // expected-error {{overload resolution selected deleted operator '=': deleted (C, Copy Assignment)}}
c1 = static_cast<C&&>(c2); // expected-error {{overload resolution selected deleted operator '=': deleted (C, Move Assignment)}}
c1.~C(); // expected-error {{attempt to use a deleted function: deleted (C, Destructor)}}
new C{}; // expected-error {{call to deleted function 'operator new': deleted (C, New)}}
delete &c2; // expected-error {{attempt to use a deleted function: deleted (C, Delete)}}
TC<double, double>{}; // expected-error {{call to deleted constructor of 'TC<double, double>': deleted (TC, Constructor)}}
TC<double, double>{tc1}; // expected-error {{call to deleted constructor of 'TC<double, double>': deleted (TC, Copy Constructor)}}
TC<double, double>{static_cast<TC<double, double>&&>(tc1)}; // expected-error {{call to deleted constructor of 'TC<double, double>': deleted (TC, Move Constructor)}}
tc1 = tc2; // expected-error {{overload resolution selected deleted operator '=': deleted (TC, Copy Assignment)}}
tc1 = static_cast<TC<double, double>&&>(tc2); // expected-error {{overload resolution selected deleted operator '=': deleted (TC, Move Assignment)}}
tc1.~TC(); // expected-error {{attempt to use a deleted function: deleted (TC, Destructor)}}
new TC<double, double>{}; // expected-error {{call to deleted function 'operator new': deleted (TC, New)}}
delete &tc2; // expected-error {{attempt to use a deleted function: deleted (TC, Delete)}}
TC<double, int>{}; // expected-error {{call to deleted constructor of 'TC<double, int>': deleted (TC<T, int>, Constructor)}}
TC<double, int>{tc_int1}; // expected-error {{call to deleted constructor of 'TC<double, int>': deleted (TC<T, int>, Copy Constructor)}}
TC<double, int>{static_cast<TC<double, int>&&>(tc_int1)}; // expected-error {{call to deleted constructor of 'TC<double, int>': deleted (TC<T, int>, Move Constructor)}}
tc_int1 = tc_int2; // expected-error {{overload resolution selected deleted operator '=': deleted (TC<T, int>, Copy Assignment)}}
tc_int1 = static_cast<TC<double, int>&&>(tc_int2); // expected-error {{overload resolution selected deleted operator '=': deleted (TC<T, int>, Move Assignment)}}
tc_int1.~TC(); // expected-error {{attempt to use a deleted function: deleted (TC<T, int>, Destructor)}}
new TC<double, int>{}; // expected-error {{call to deleted function 'operator new': deleted (TC<T, int>, New)}}
delete &tc_int2; // expected-error {{attempt to use a deleted function: deleted (TC<T, int>, Delete)}}
TC<int, int>{}; // expected-error {{call to deleted constructor of 'TC<int, int>': deleted (TC<int, int>, Constructor)}}
TC<int, int>{tc_int_int1}; // expected-error {{call to deleted constructor of 'TC<int, int>': deleted (TC<int, int>, Copy Constructor)}}
TC<int, int>{static_cast<TC<int, int>&&>(tc_int_int1)}; // expected-error {{call to deleted constructor of 'TC<int, int>': deleted (TC<int, int>, Move Constructor)}}
tc_int_int1 = tc_int_int2; // expected-error {{overload resolution selected deleted operator '=': deleted (TC<int, int>, Copy Assignment)}}
tc_int_int1 = static_cast<TC<int, int>&&>(tc_int_int2); // expected-error {{overload resolution selected deleted operator '=': deleted (TC<int, int>, Move Assignment)}}
tc_int_int1.~TC(); // expected-error {{attempt to use a deleted function: deleted (TC<int, int>, Destructor)}}
new TC<int, int>{}; // expected-error {{call to deleted function 'operator new': deleted (TC<int, int>, New)}}
delete &tc_int_int2; // expected-error {{attempt to use a deleted function: deleted (TC<int, int>, Delete)}}
}
C conv1() { return 1; } // expected-error {{conversion function from 'int' to 'C' invokes a deleted function: deleted (C, C(int))}}
TC<double, double> conv2() { return 1; } // expected-error {{conversion function from 'int' to 'TC<double, double>' invokes a deleted function: deleted (TC, TC(int))}}
TC<double, int> conv3() { return 1; } // expected-error {{conversion function from 'int' to 'TC<double, int>' invokes a deleted function: deleted (TC<T, int>, TC(int))}}
TC<int, int> conv4() { return 1; } // expected-error {{conversion function from 'int' to 'TC<int, int>' invokes a deleted function: deleted (TC<int, int>, TC(int))}}
struct O {
int x;
int operator+() = delete("deleted (O, +)"); // expected-note {{explicitly deleted}}
O* operator->() = delete("deleted (O, ->)"); // expected-note {{explicitly deleted}}
int operator-(O) = delete("deleted (O, -)"); // expected-note {{explicitly deleted}}
int operator[](O) = delete("deleted (O, [])"); // expected-note {{explicitly deleted}}
int operator()(O) = delete("deleted (O, ())"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
explicit operator bool() = delete("deleted (O, operator bool)"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
};
template <typename T, typename U>
struct TO {
T x;
T operator+() = delete("deleted (TO, +)"); // expected-note {{explicitly deleted}}
T* operator->() = delete("deleted (TO, ->)"); // expected-note {{explicitly deleted}}
T operator-(TO) = delete("deleted (TO, -)"); // expected-note {{explicitly deleted}}
T operator[](TO) = delete("deleted (TO, [])"); // expected-note {{explicitly deleted}}
T operator()(TO) = delete("deleted (TO, ())"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
explicit operator bool() = delete("deleted (TO, operator bool)"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
};
template <typename T>
struct TO<T, int> {
T x;
T operator+() = delete("deleted (TO<T, int>, +)"); // expected-note {{explicitly deleted}}
T* operator->() = delete("deleted (TO<T, int>, ->)"); // expected-note {{explicitly deleted}}
T operator-(TO) = delete("deleted (TO<T, int>, -)"); // expected-note {{explicitly deleted}}
T operator[](TO) = delete("deleted (TO<T, int>, [])"); // expected-note {{explicitly deleted}}
T operator()(TO) = delete("deleted (TO<T, int>, ())"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
explicit operator bool() = delete("deleted (TO<T, int>, operator bool)"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
};
template <>
struct TO<int, int> {
int x;
int operator+() = delete("deleted (TO<int, int>, +)"); // expected-note {{explicitly deleted}}
int* operator->() = delete("deleted (TO<int, int>, ->)"); // expected-note {{explicitly deleted}}
int operator-(TO) = delete("deleted (TO<int, int>, -)"); // expected-note {{explicitly deleted}}
int operator[](TO) = delete("deleted (TO<int, int>, [])"); // expected-note {{explicitly deleted}}
int operator()(TO) = delete("deleted (TO<int, int>, ())"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
explicit operator bool() = delete("deleted (TO<int, int>, operator bool)"); // expected-note {{explicitly marked deleted}} expected-note {{explicitly deleted}}
};
void operators() {
O o;
+o; // expected-error {{overload resolution selected deleted operator '+': deleted (O, +)}}
o->x; // expected-error {{overload resolution selected deleted operator '->': deleted (O, ->)}}
o - o; // expected-error {{overload resolution selected deleted operator '-': deleted (O, -)}}
o[o]; // expected-error {{overload resolution selected deleted operator '[]': deleted (O, [])}}
o(o); // expected-error {{call to deleted function call operator in type 'O': deleted (O, ())}} expected-error {{attempt to use a deleted function: deleted (O, ())}}
if (o) {} // expected-error {{attempt to use a deleted function: deleted (O, operator bool)}}
static_cast<bool>(o); // expected-error {{static_cast from 'O' to 'bool' uses deleted function: deleted (O, operator bool)}}
TO<double, double> to;
+to; // expected-error {{overload resolution selected deleted operator '+': deleted (TO, +)}}
to->x; // expected-error {{overload resolution selected deleted operator '->': deleted (TO, ->)}}
to - to; // expected-error {{overload resolution selected deleted operator '-': deleted (TO, -)}}
to[to]; // expected-error {{overload resolution selected deleted operator '[]': deleted (TO, [])}}
to(to); // expected-error {{call to deleted function call operator in type 'TO<double, double>': deleted (TO, ())}} expected-error {{attempt to use a deleted function: deleted (TO, ())}}
if (to) {} // expected-error {{attempt to use a deleted function: deleted (TO, operator bool)}}
static_cast<bool>(to); // expected-error {{static_cast from 'TO<double, double>' to 'bool' uses deleted function: deleted (TO, operator bool)}}
TO<double, int> to_int;
+to_int; // expected-error {{overload resolution selected deleted operator '+': deleted (TO<T, int>, +)}}
to_int->x; // expected-error {{overload resolution selected deleted operator '->': deleted (TO<T, int>, ->)}}
to_int - to_int; // expected-error {{overload resolution selected deleted operator '-': deleted (TO<T, int>, -)}}
to_int[to_int]; // expected-error {{overload resolution selected deleted operator '[]': deleted (TO<T, int>, [])}}
to_int(to_int); // expected-error {{call to deleted function call operator in type 'TO<double, int>': deleted (TO<T, int>, ())}} expected-error {{attempt to use a deleted function: deleted (TO<T, int>, ())}}
if (to_int) {} // expected-error {{attempt to use a deleted function: deleted (TO<T, int>, operator bool)}}
static_cast<bool>(to_int); // expected-error {{static_cast from 'TO<double, int>' to 'bool' uses deleted function: deleted (TO<T, int>, operator bool)}}
TO<int, int> to_int_int;
+to_int_int; // expected-error {{overload resolution selected deleted operator '+': deleted (TO<int, int>, +)}}
to_int_int->x; // expected-error {{overload resolution selected deleted operator '->': deleted (TO<int, int>, ->)}}
to_int_int - to_int_int; // expected-error {{overload resolution selected deleted operator '-': deleted (TO<int, int>, -)}}
to_int_int[to_int_int]; // expected-error {{overload resolution selected deleted operator '[]': deleted (TO<int, int>, [])}}
to_int_int(to_int_int); // expected-error {{call to deleted function call operator in type 'TO<int, int>': deleted (TO<int, int>, ())}} expected-error {{attempt to use a deleted function: deleted (TO<int, int>, ())}}
if (to_int_int) {} // expected-error {{attempt to use a deleted function: deleted (TO<int, int>, operator bool)}}
static_cast<bool>(to_int_int); // expected-error {{static_cast from 'TO<int, int>' to 'bool' uses deleted function: deleted (TO<int, int>, operator bool)}}
};
|
