[Patch] Implement std::experimental::variant

[Ville Voutilainen]

On 7 August 2016 at 04:04, Ville Voutilainen
<ville.voutilainen@gmail.com> wrote:
>> Good news! This compiles now! I learned the technique from Anthony
>> Williams's implementation, whose code also compiles, but it requires a
>> close-to-trunk gcc, which implements
>> "...for unions, at least one non-static data member is of non-volatile
>> literal type, ...".
>>
>> Also added it as a test.
>>
>> Please verify the implementation by looking at _Uninitialized and
>> _Variant_storage.
>
>
> Sounds very promising, I'll try to play with it before the end of the
> weekend. Jonathan will be on holiday
> next week so we have time before this gets committed. We might want to
> entertain the idea of running
> the tests at https://github.com/efcs/libcxx/tree/variant although that
> implementation isn't something we should
> adopt things from.

I did the playing, looks very good to me. Thanks for doing the work, Tim!
(Jonathan, ship it :) )