| // PR c++/94907 | |
| // { dg-do compile { target c++2a } } | |
| namespace std { struct strong_ordering { }; } | |
| struct E; | |
| struct D { | |
| virtual std::strong_ordering operator<=>(const struct E&) const = 0; | |
| }; | |
| struct E : D { | |
| std::strong_ordering operator<=>(const E&) const override = default; | |
| }; |