Is there any difference between delete x and delete(x)?

Question

In C++ is there any difference between the following commands:

delete x;
delete(x);

Answer 1

No, there's absolutely no difference.

Answer 2

It's the same as the difference between:

i = i + 1;
i = i + (1);

i.e. none. delete is an operator, not a function.

Answer 3

The difference is only if the x is expanded by a pre-compiler, in which case the semantics of the (x) will cause an evaluation of the x expression before calling an operator delete on the result of that evaluation.