> So the answer is that the `std::move` does nothing and should be omitted You can't assign an rvalue into an lvalue reference, precisely to avoid this sort of

> So the answer is that the `std::move` does nothing and should be omitted You can't assign an rvalue into an lvalue reference, precisely to avoid this sort of mistake. If this is the only overload then this just wouldn't compile (e.g. [1]). So the std::move isn't doing nothing, but yes it should be omitted. Maybe it's just a weird typo. [1] https://ideone.com/4NS5dI https://ideone.com/4NS5dI