Construct the empty set. Uses singletons instead of allocating new containers.
| 59 | // Construct the empty set. |
| 60 | // Uses singletons instead of allocating new containers. |
| 61 | UnknownSet() = default; |
| 62 | |
| 63 | UnknownSet(const UnknownSet&) = default; |
| 64 | UnknownSet(UnknownSet&&) = default; |
nothing calls this directly
no test coverage detected