Why is exception handling bad?

Question

Google\'s Go language has no exceptions as a design choice, and Linus of Linux fame has called exceptions crap. Why?

Answer 1

Theoretically they are really bad. In perfect mathematical world you cannot get exception situations. Look at the functional languages, they have no side effects, so they virtually do not have source for unexceptional situations.

But, reality is another story. We always have situations that are "unexpected". This is why we need exceptions.

I think we can think of exceptions as of syntax sugar for ExceptionSituationObserver. You just get notifications of exceptions. Nothing more.

With Go, I think they will introduce something that will deal with "unexpected" situations. I can guess that they will try to make it sound less destructive as exceptions and more as application logic. But this is just my guess.