Add C++1z implementations

[Marshall Clow]

On Feb 10, 2014, at 3:02 AM, lcidfire at gmail.com wrote:

> I would like to add the implementation of N3784 to libc++. Now since
> this is proposed for C++1z, I wonder where to submit this to. Would it
> be ok, to extend future or rather somewhere in ext or experimental?

If you take a look at the ToT libc++, the post-C++14 stuff is all in <experimental/xxx>
The bits from N3784 (once they get accepted) should go there as well

— Marshall