Re: [boost] [gsoc-2013] Boost.Expected

Le 24/04/13 19:49, Gottlob Frege a écrit :

On Wed, Apr 24, 2013 at 12:47 PM, Vicente J. Botet Escriba < vicente.botet@wanadoo.fr> wrote:

...

Le 24/04/13 18:02, Gottlob Frege a écrit :

One thing I missed in this conversation:

...

Are we considering the Alexandrescu behaviour of throwing in the destructor if the expected<> has not been read?

Why would you want to that?

I didn't say I did, but some might. And the Alexandrescu version (which was referenced as one design) works that way. I didn't understood it this way. I've checked the slides and I have not found nothing about the destructor. Could you point me where have you found that the destructor throws if the value were not read?

...

...

I was imagining just an excepted class. I forgot about the novel throwing behaviour.

This will correspond to expected_or_error.

I'm hoping for just one class, not multiple.

I didn't catch that you were suggesting to have template class expected; Humm, this could be done, but the has_exception function has no sense if the ExceptionalType is not exception_ptr. But a get_exceptional and accept_exceptional_visitor have sense in both cases. Best, Vicente