[codr4]

They are used for exceptional problems, expecting one doesn't really make any sense.

Of course you do, that's the point; to unwind the stack until you reach code that knows how to handle the error.

Cancer, really; is that you Gordon?

[dpc_pw]

Errors are not exceptional problems.

[codr4]

I didn't say that, I said that exceptions are used for exceptional problems. Expected errors like missing values are better handled using optional types. I find the one ring to rule them all attitude less than constructive.