![]() The "user-defined conversion by implicit constructor" codepath is already handled by `B(int)`; we don't need to test `A(const A&)` a second time via `DA` (nor the isomorphic case with `DB`). We don't need `&` anywhere in this test. Generally, `operator()` should be const; this test needn't be special. (No functional change in test coverage.) |
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regular_invocable.pass.cpp |