At Wed, 13 Oct 2010 15:52:47 +0100, Mathias Gaunard wrote:
On 13/10/10 12:18, Mathias Gaunard wrote:
Since those could be different segments, you wouldn't need to check which segment you are in at each iteration. Actually, all local iterators for a a segmented iterator must be the same for all segments, but since a local iterator can be a segmented iterator itself, it can also have a local iterator which can be different. By recursion, you can therefore use different iterator types for each segment, but that's somewhat convoluted.
That's wrong actually. Since all the local iterators are the same, then their local iterators must be the same too.
So segmented iterators wouldn't help to only check for alignment once it has been reached I think. I would have to properly try to implement one, but it's not particularly practical to do.
I think the exercise would be worth your time
Anyway, my belief is that my alternative to segmented iterators is more interesting.
Not to me, until you can begin to address something like std::merge(). -- Dave Abrahams BoostPro Computing http://www.boostpro.com