Re: [boost] Final lightweight monad, next gen futures and upcoming AFIO review (was: Re: [next gen futures] Lightweight monad r

2015-06-28 17:52 GMT-03:00 Vinícius dos Santos Oliveira < vini.ipsmaker@gmail.com>:

2015-06-28 17:52 GMT-03:00 Niall Douglas <s_sourceforge@nedprod.com>:

...

monad<T>, result<T> and option<T> are all *synchronous* value transports. Just like Rust's Result and Option.

So, why can result<t> be empty?

I mean: result<T, E> is like "give me T or it's an error". There is no empty state. Empty would already be an error state. I'd only understand empty if it's an async operation that didn't finish already. -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker