An exegesis of Walter's reference counted slice

[via Digitalmars-d]

On Tuesday, 24 February 2015 at 19:40:35 UTC, Andrei Alexandrescu 
wrote:
> So: does DIP25 allow safe slices? Looks that way

I believe it does, but at the cost of forced reference counting. 
As I pointed out, the `ref` solution is not applicable to slices, 
therefore it needs to return an RCArray. This in turn forces an 
inc/dec whenever it is sliced or copied, and - maybe worse - it 
requires all consumers to support RCArray (or whatever other 
idiosyncratic RC implementation users come up with).