Quick question about a reference type key in a generic dictionary in .Net

Question

I have a mutable class that I'm using as a key to a generic dictionary. Two keys should be equal only if their references are equal. From what I've read, in this case, I don't need to override Equals, GetHashCode , or implement IEqualityComparer.

Is this correct?

Answer 1

Yes. The default comparison operation in System.Object uses reference equality. If this behavior is what you want, the defaults should work fine.

Answer 2

Yes, this is correct. As long as you don't override, reference is the default comparison.