A reference can not be NULL or it can be NULL?

Question

I have read from the Wikipedia that:

“References cannot be null, whereas pointers can; every reference refers to some object, although it may or may n

Answer 1

Well, you can do whatever you want in C++. Another example:

person &object1 = *( reinterpret_cast(0) );

You are invoking an undefined behavior in the above case, beside the case you mentioned!