Re: [boost] Boost.Outcome review - First questions

Subject: Re: [boost] Boost.Outcome review - First questions
From: Peter Dimov (lists_at_[hidden])
Date: 2017-05-24 15:46:08

Niall Douglas wrote:

> I think the source of our disagreement is over publicly exposing the empty 
> state. You appear to be happy if it's an internal only thing, but not 
> available to end users. I take the view that if you're implementing the 
> empty state anyway, might as well open it up for public use.

No, I don't argue for a possible, but unexposed, empty state. I argue that 
there should be no empty state. A result should either hold a value or an 
error (the reason for the lack of value).