Sharing in D

[Walter Bright]

Steven Schveighoffer wrote:
> Now, Let's say you have thread 1 which calls bar.  So now thread 1's x2 and 
> obj._x point to the exact same data, which is both viewed as shared and 
> unshared at the same time.  Is this something that should be allowed?  Would 
> you not make the assumption that you can do whatever you want with what x2 
> points to without synchronization because it is unshared?  Maybe I don't 
> completely understand what you are intending for shared to mean.

Eh, I think you've got me there. Looks like unshared cannot be 
implicitly converted to shared.