> Everything that does not match that expectation is exceptional (to the caller).
Sure, but saying "open this file" and having the response "nothing here, boss" is not exceptional. It's pretty normal. Isn't that just one of the two obvious options when you try and open a file? To me, exceptional would be something like "this file was open and now it's deleted."
Sure, but saying "open this file" and having the response "nothing here, boss" is not exceptional. It's pretty normal. Isn't that just one of the two obvious options when you try and open a file? To me, exceptional would be something like "this file was open and now it's deleted."