Transforming a range back to the original type?

[Chris Cain]

On Friday, 4 May 2012 at 11:46:34 UTC, Jacob Carlborg wrote:
> I give up. Apparently you don't think it's useful.

I'm not seeing it either, but it might help if you gave a 
concrete example of where it could/should be used and what 
benefits it might have. I think it'll be rather hard to come up 
with an example where the programmer wouldn't know what the 
original type was and have it actually matter.