Associative Ranges

[Xinok via Digitalmars-d]

On Friday, 1 August 2014 at 23:57:37 UTC, Freddy wrote:
> I just curious, do Associative Ranges exist. If so where can i
> find them. I started thinking about them when i asked this
> question:
> http://forum.dlang.org/thread/vauuognmhvtjrktazyeb@forum.dlang.org

Unfortunately not, but I do wonder if we should generalize an 
interface for these types of ranges.