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Yes, DoubleEndedIterator makes sense > for doubly-linked lists. I'll add it as a follow-up patch since it > requires a prev() method and some additional iterator state tracking. And looks like I am short of sleep, I replied yesterday night (now you know why I don't work at night :-D) saying we did not want to do the DoubleEndedIterator yet without a proper usecase for it. Anyway, the point is I wont do it in this series and file it away as "future patch" in my TODO :) -- Joel Fernandes