Re: [boost] Interest in an 'either' library?

Subject: Re: [boost] Interest in an 'either' library?
From: David Sankel (camior_at_[hidden])
Date: 2013-06-26 11:24:34

On Tue, Jun 25, 2013 at 1:28 AM, Pierre Talbot <ptalbot_at_[hidden]> wrote:

>
> A good reusable library will be
>>
> documented by its semantics primarily and provide use-cases to give the
>> user hints of where it will be useful (but never limit the user by the
>> author's necessarily limited foresight)
>>
>>  Indeed, the Expected class was firstly designed for error reporting. We
> can generalize it for an Either class but we lose some contexts that would
> have helped to simplify this reporting in C++. Maybe we can propose free
> functions over Either to handle this specific use case, but I don't know
> how well it will work.

Now we're talking! Lets come up with the best free-function error-reporting
use case functions we can and see if they are so horrible they're worth
making all the other use cases look broken.

--David Sankel