Ranges - Question about desing choices

[Adam D. Ruppe via Digitalmars-d-learn]

On Monday, 24 August 2015 at 15:09:14 UTC, Michal Minich wrote:
> What are the advantages of current design.

One advantage of the current design is you can statically 
determine if something is an infinite range by seeing if empty is 
a constant false. With your change, you could never be sure if 
something was infinite or not since popFront would just keep 
returning true.

It is also sometimes useful to see if something is empty without 
modifying it, like when doing a wrapper.