Returning an empty range of a given type

[rcorre via Digitalmars-d-learn]

On Thursday, 14 May 2015 at 06:41:45 UTC, Ali Çehreli wrote:
>
> I am lucky because although the returned type is opaque to me, 
> I know that it is constructed by a void lambda.

Yeah, in this case I control the container so I may just add an 
emptySlice property, but it does seem like it might be a common 
need (to return an empty range of a given type without having 
that range constructed beforehand).