Re: [boost] expected<T, E...> (Was: [outcome] High level summary of review feedback accepted so far)

Subject: Re: [boost] expected<T, E...> (Was: [outcome] High level summary of review feedback accepted so far)
From: Peter Dimov (lists_at_[hidden])
Date: 2017-06-04 15:42:41

Vicente J. Botet Escriba wrote:
> >    enum unscoped_error
> >    {
> >        unscoped_other_error = 7
> >    };
> >
> >    expected<double, unscoped_error> test()
> >    {
> >        return unscoped_other_error; // returns 7.0
> >    }

...

> unexpected_type<E> is explicitly constructible from E. expected<T, E> is 
> implicitly constructible from unexpected_type<E>. This avoid this kind of 
> ambiguities.

Could you please try this code with your implementation?