| struct S; | |
| struct T { S t; }; // { dg-error "14:field .t. has incomplete type" } | |
| struct U { int u[sizeof (S)]; }; // { dg-error "18:invalid application of .sizeof. to incomplete type" } | |
| union V { char c; char d[]; }; // { dg-error "24:flexible array member in union" } | |
| bool a = __has_unique_object_representations (S); // { dg-error "incomplete type" } | |
| bool b = __has_unique_object_representations (T); | |
| bool c = __has_unique_object_representations (U); | |
| bool d = __has_unique_object_representations (V); |