Iterators for D

[Knud Sørensen]

On Mon, 06 Nov 2006 12:46:01 -0800, Walter Bright wrote:

> It's becoming increasingly obvious that D needs iterators. While opApply 
>   is far better for some kinds of iteration (such as recursively 
> traversing a directory), iterators are more efficient in some cases, and 
> allow for things that opApply makes difficult.
> 

What are those cases ? Maybe we can find a way to fix the problem with
opApply.