Accessing the [] operator from a pointer

Question

If I define a pointer to an object that defines the [] operator, is there a direct way to access this operator from a pointer?

For example, in the follo

Answer 1

People are advising you to use ->at(0) because of range checking. But here is my advise (with other point of view):

NEVER use ->at(0)! It is really slower. Would you sacrifice performance just because you are lazy enough to not check range by yourself? If so, you should not be programming in C++.

I think (*VecPtr)[0] is ok.