Keeping a dynamic sorted range

[Andrei Alexandrescu via Digitalmars-d]

On 11/10/14 7:42 AM, Sean Kelly wrote:
> To address your question a bit more fully, it seems like this is
> something the range proposal for C++ is better suited for. Then
> appending would just be a special case of inserting at a specific
> position. I've got to say, if I had the time I'd implement the C++
> ranges in D. They seem more powerful and easier to use.

What would be their advantages? -- Andrei