How to compare if two objects are really the same object?

Question

I want to compare if an variable A represents the same object as variable B does.

Could I do that with the == operator?

Or what else is this exactly looking

Answer 1

[objectA isEqual:objectB] is usually a good choice. Note that some classes may have more specialized equality functions. (isEqualToString: et.al.) These generally test not if they are the same object, but if the objects are equal, which is a distinct concept. (Two string objects can be equal, even if they don't have the same memory address.)