Moving a unique_ptr in the same statement it is used

Question

Is doing something like this safe? I'm unsure if the execution order is guaranteed or not.

auto foo = std::make_unique<Foo>();
foo->Bar(std::move(foo));

Answer 1

It will work fine.

The sequence:

1. Evaluate std::move(foo) then evaluate foo-> (or the other way around, which does not matter as neither changes the state of the foo pointer).
2. Invoke Foo::Bar(...) on the target object obtained in #1 passing the rvalue-casted foo also obtained in #1.

Probably not the cleanest code style.