19 template <class T, class U>
21   static_assert(std::common_reference_with<T, U&>);  in CheckCommonReferenceWith()
22   static_assert(std::common_reference_with<T, const U&>);  in CheckCommonReferenceWith()
23   static_assert(std::common_reference_with<T, volatile U&>);  in CheckCommonReferenceWith()
24   static_assert(std::common_reference_with<T, const volatile U&>);  in CheckCommonReferenceWith()
25   static_assert(std::common_reference_with<T, U&&>);  in CheckCommonReferenceWith()
26   static_assert(std::common_reference_with<T, const U&&>);  in CheckCommonReferenceWith()
27   static_assert(std::common_reference_with<T, volatile U&&>);  in CheckCommonReferenceWith()
28   static_assert(std::common_reference_with<T, const volatile U&&>);  in CheckCommonReferenceWith()
29   static_assert(std::common_reference_with<T&, U&&>);  in CheckCommonReferenceWith()
30   static_assert(std::common_reference_with<T&, const U&&>);  in CheckCommonReferenceWith()
31   static_assert(std::common_reference_with<T&, volatile U&&>);  in CheckCommonReferenceWith()
32   static_assert(std::common_reference_with<T&, const volatile U&&>);  in CheckCommonReferenceWith()
33   static_assert(std::common_reference_with<const T&, U&&>);  in CheckCommonReferenceWith()
34   static_assert(std::common_reference_with<const T&, const U&&>);  in CheckCommonReferenceWith()
35   static_assert(std::common_reference_with<const T&, volatile U&&>);  in CheckCommonReferenceWith()
36   static_assert(std::common_reference_with<const T&, const volatile U&&>);  in CheckCommonReferenceWith()
37   static_assert(std::common_reference_with<volatile T&, U&&>);  in CheckCommonReferenceWith()
38   static_assert(std::common_reference_with<volatile T&, const U&&>);  in CheckCommonReferenceWith()
39   static_assert(std::common_reference_with<volatile T&, volatile U&&>);  in CheckCommonReferenceWith()
40   static_assert(std::common_reference_with<volatile T&, const volatile U&&>);  in CheckCommonReferenceWith()
41   static_assert(std::common_reference_with<const volatile T&, U&&>);  in CheckCommonReferenceWith()
42   static_assert(std::common_reference_with<const volatile T&, const U&&>);  in CheckCommonReferenceWith()
43   static_assert(std::common_reference_with<const volatile T&, volatile U&&>);  in CheckCommonReferenceWith()
45       std::common_reference_with<const volatile T&, const volatile U&&>);  in CheckCommonReferenceWith()
47   return std::common_reference_with<T, U>;  in CheckCommonReferenceWith()
123 class T {};  class
125 static_assert(!std::common_reference_with<T, int>);
126 static_assert(!std::common_reference_with<int, T>);
127 static_assert(!std::common_reference_with<T, int[10]>);
128 static_assert(!std::common_reference_with<T[10], int>);
129 static_assert(!std::common_reference_with<T*, int*>);
130 static_assert(!std::common_reference_with<T*, const int*>);
131 static_assert(!std::common_reference_with<T*, volatile int*>);
132 static_assert(!std::common_reference_with<T*, const volatile int*>);
133 static_assert(!std::common_reference_with<const T*, int*>);
134 static_assert(!std::common_reference_with<volatile T*, int*>);
135 static_assert(!std::common_reference_with<const volatile T*, int*>);
136 static_assert(!std::common_reference_with<const T*, const int*>);
137 static_assert(!std::common_reference_with<const T*, volatile int*>);
138 static_assert(!std::common_reference_with<const T*, const volatile int*>);
139 static_assert(!std::common_reference_with<const T*, const int*>);
140 static_assert(!std::common_reference_with<volatile T*, const int*>);
141 static_assert(!std::common_reference_with<const volatile T*, const int*>);
142 static_assert(!std::common_reference_with<volatile T*, const int*>);
143 static_assert(!std::common_reference_with<volatile T*, volatile int*>);
144 static_assert(!std::common_reference_with<volatile T*, const volatile int*>);
145 static_assert(!std::common_reference_with<const T*, volatile int*>);
146 static_assert(!std::common_reference_with<volatile T*, volatile int*>);
147 static_assert(!std::common_reference_with<const volatile T*, volatile int*>);
148 static_assert(!std::common_reference_with<const volatile T*, const int*>);
149 static_assert(!std::common_reference_with<const volatile T*, volatile int*>);
151     !std::common_reference_with<const volatile T*, const volatile int*>);
152 static_assert(!std::common_reference_with<const T*, const volatile int*>);
153 static_assert(!std::common_reference_with<volatile T*, const volatile int*>);
155     !std::common_reference_with<const volatile T*, const volatile int*>);
156 static_assert(!std::common_reference_with<T&, int&>);
157 static_assert(!std::common_reference_with<T&, const int&>);
158 static_assert(!std::common_reference_with<T&, volatile int&>);
159 static_assert(!std::common_reference_with<T&, const volatile int&>);
160 static_assert(!std::common_reference_with<const T&, int&>);
161 static_assert(!std::common_reference_with<volatile T&, int&>);
162 static_assert(!std::common_reference_with<const volatile T&, int&>);
163 static_assert(!std::common_reference_with<const T&, const int&>);
164 static_assert(!std::common_reference_with<const T&, volatile int&>);
165 static_assert(!std::common_reference_with<const T&, const volatile int&>);
166 static_assert(!std::common_reference_with<const T&, const int&>);
167 static_assert(!std::common_reference_with<volatile T&, const int&>);
168 static_assert(!std::common_reference_with<const volatile T&, const int&>);
169 static_assert(!std::common_reference_with<volatile T&, const int&>);
170 static_assert(!std::common_reference_with<volatile T&, volatile int&>);
171 static_assert(!std::common_reference_with<volatile T&, const volatile int&>);
172 static_assert(!std::common_reference_with<const T&, volatile int&>);
173 static_assert(!std::common_reference_with<volatile T&, volatile int&>);
174 static_assert(!std::common_reference_with<const volatile T&, volatile int&>);
175 static_assert(!std::common_reference_with<const volatile T&, const int&>);
176 static_assert(!std::common_reference_with<const volatile T&, volatile int&>);
178     !std::common_reference_with<const volatile T&, const volatile int&>);
179 static_assert(!std::common_reference_with<const T&, const volatile int&>);
180 static_assert(!std::common_reference_with<volatile T&, const volatile int&>);
182     !std::common_reference_with<const volatile T&, const volatile int&>);
183 static_assert(!std::common_reference_with<T&, int&&>);
184 static_assert(!std::common_reference_with<T&, const int&&>);
185 static_assert(!std::common_reference_with<T&, volatile int&&>);
186 static_assert(!std::common_reference_with<T&, const volatile int&&>);
187 static_assert(!std::common_reference_with<const T&, int&&>);
188 static_assert(!std::common_reference_with<volatile T&, int&&>);
189 static_assert(!std::common_reference_with<const volatile T&, int&&>);
190 static_assert(!std::common_reference_with<const T&, const int&&>);
191 static_assert(!std::common_reference_with<const T&, volatile int&&>);
192 static_assert(!std::common_reference_with<const T&, const volatile int&&>);
193 static_assert(!std::common_reference_with<const T&, const int&&>);
194 static_assert(!std::common_reference_with<volatile T&, const int&&>);
195 static_assert(!std::common_reference_with<const volatile T&, const int&&>);
196 static_assert(!std::common_reference_with<volatile T&, const int&&>);
197 static_assert(!std::common_reference_with<volatile T&, volatile int&&>);
198 static_assert(!std::common_reference_with<volatile T&, const volatile int&&>);
199 static_assert(!std::common_reference_with<const T&, volatile int&&>);
200 static_assert(!std::common_reference_with<volatile T&, volatile int&&>);
201 static_assert(!std::common_reference_with<const volatile T&, volatile int&&>);
202 static_assert(!std::common_reference_with<const volatile T&, const int&&>);
203 static_assert(!std::common_reference_with<const volatile T&, volatile int&&>);
205     !std::common_reference_with<const volatile T&, const volatile int&&>);
206 static_assert(!std::common_reference_with<const T&, const volatile int&&>);
207 static_assert(!std::common_reference_with<volatile T&, const volatile int&&>);
209     !std::common_reference_with<const volatile T&, const volatile int&&>);
210 static_assert(!std::common_reference_with<T&&, int&>);
211 static_assert(!std::common_reference_with<T&&, const int&>);
212 static_assert(!std::common_reference_with<T&&, volatile int&>);
213 static_assert(!std::common_reference_with<T&&, const volatile int&>);
214 static_assert(!std::common_reference_with<const T&&, int&>);
215 static_assert(!std::common_reference_with<volatile T&&, int&>);
216 static_assert(!std::common_reference_with<const volatile T&&, int&>);
217 static_assert(!std::common_reference_with<const T&&, const int&>);
218 static_assert(!std::common_reference_with<const T&&, volatile int&>);
219 static_assert(!std::common_reference_with<const T&&, const volatile int&>);
220 static_assert(!std::common_reference_with<const T&&, const int&>);
221 static_assert(!std::common_reference_with<volatile T&&, const int&>);
222 static_assert(!std::common_reference_with<const volatile T&&, const int&>);
223 static_assert(!std::common_reference_with<volatile T&&, const int&>);
224 static_assert(!std::common_reference_with<volatile T&&, volatile int&>);
225 static_assert(!std::common_reference_with<volatile T&&, const volatile int&>);
226 static_assert(!std::common_reference_with<const T&&, volatile int&>);
227 static_assert(!std::common_reference_with<volatile T&&, volatile int&>);
228 static_assert(!std::common_reference_with<const volatile T&&, volatile int&>);
229 static_assert(!std::common_reference_with<const volatile T&&, const int&>);
230 static_assert(!std::common_reference_with<const volatile T&&, volatile int&>);
232     !std::common_reference_with<const volatile T&&, const volatile int&>);
233 static_assert(!std::common_reference_with<const T&&, const volatile int&>);
234 static_assert(!std::common_reference_with<volatile T&&, const volatile int&>);
236     !std::common_reference_with<const volatile T&&, const volatile int&>);
237 static_assert(!std::common_reference_with<T&&, int&&>);
238 static_assert(!std::common_reference_with<T&&, const int&&>);
239 static_assert(!std::common_reference_with<T&&, volatile int&&>);
240 static_assert(!std::common_reference_with<T&&, const volatile int&&>);
241 static_assert(!std::common_reference_with<const T&&, int&&>);
242 static_assert(!std::common_reference_with<volatile T&&, int&&>);
243 static_assert(!std::common_reference_with<const volatile T&&, int&&>);
244 static_assert(!std::common_reference_with<const T&&, const int&&>);
245 static_assert(!std::common_reference_with<const T&&, volatile int&&>);
246 static_assert(!std::common_reference_with<const T&&, const volatile int&&>);
247 static_assert(!std::common_reference_with<const T&&, const int&&>);
248 static_assert(!std::common_reference_with<volatile T&&, const int&&>);
249 static_assert(!std::common_reference_with<const volatile T&&, const int&&>);
250 static_assert(!std::common_reference_with<volatile T&&, const int&&>);
251 static_assert(!std::common_reference_with<volatile T&&, volatile int&&>);
252 static_assert(!std::common_reference_with<volatile T&&, const volatile int&&>);
253 static_assert(!std::common_reference_with<const T&&, volatile int&&>);
254 static_assert(!std::common_reference_with<volatile T&&, volatile int&&>);
255 static_assert(!std::common_reference_with<const volatile T&&, volatile int&&>);
256 static_assert(!std::common_reference_with<const volatile T&&, const int&&>);
257 static_assert(!std::common_reference_with<const volatile T&&, volatile int&&>);
259     !std::common_reference_with<const volatile T&&, const volatile int&&>);
260 static_assert(!std::common_reference_with<const T&&, const volatile int&&>);
261 static_assert(!std::common_reference_with<volatile T&&, const volatile int&&>);
263     !std::common_reference_with<const volatile T&&, const volatile int&&>);