Revised RFC on range design for D2

[Walter Bright]

Andrei Alexandrescu wrote:
> Ary Borenszweig wrote:
>> - Is it possible to add elements to a range? Suppose a linked list, 
>> you want to traverse it's elements until a condition is met on an 
>> element, and then add something after it. Or before it. I see there's 
>> "put", but it also says "An output range models a one-pass forward 
>> writing iteration.", so I think it's not the same.
> 
> Never. Ranges never grow. You need access to the "mother" container, 
> which will offer primitives for insertion and removal of elements.

I agree. I don't think it is ever a good idea to try to add/remove 
elements of a container while iterating over it. foreach disallows it.