Re: Improve variants

[Akim Demaille]

> Le 25 juin 2016 à 11:41, Mehdi Benharrats <address@hidden> a écrit :
> 
> Hi,
> I would be happy to help the bison project. I think I can improve the variant 
> class to have a minimal alignment (and to assure its protability, which is 
> currently not guaranteed), but I think I need some C++11 stuff to make things 
> easier. So here comes the question : is it possible to use C++11 for this 
> class ? I can also write this class with a #if directive, thus the user will 
> be able to use it only if he has a C++11 compiler.
> If the answer is no, I will try to do it without C++11.
> Thanks in advance for your answer.

Hi Mehdi,

Help will be gladly accepted!  If you think you can improve the
implementation, please send contributions.

We cannot require C++11, yet it is acceptable to use __cplusplus
to check the version of the language, and use C++11 features
conditionally, just like what you suggested.

Note that I’m currently working on the variants for Bison 3.2, so
that they support move-semantics.  Be sure to keep in touch before
starting working on this, so that we don’t step on each other’s toes.

Cheers,

        Akim