Re: [boost] [outcome] expected<T&>, result<T&>

std::variant doesn't support references either (that was a late decision, IIRC) I'm not sure it or optional ever will. Although maybe expected use cases could lead the way. Some committee members want references to work one way, some want it to work another, some think it is dumb to put non-Regular types into optional, so we should *never* support references. Tony On Thu, May 25, 2017 at 4:33 PM, Vicente J. Botet Escriba via Boost wrote:

Le 25/05/2017 à 19:33, Andrzej Krzemienski via Boost a écrit :

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Niall, Are Boost.Outcome monads intended to work with references (at least lvalue references)?

<snip>

If I try it with `outcome::expected` I also get these messages, but I also get a static assert saying that as per LWG decision T must be default constructible.

Vicente, does this mean you cannot use `std::expected` to return references?

The proposal doesn't includes it. I have a open point to know if the committee is interested in. As we don't have yet optional I believed that it could be done later on. However variant supports references, isn't it?

Vicente

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