David Abrahams wrote:
Joel de Guzman <joel@boost-consulting.com> writes:
joint_view is a prime example of a segmented sequence. The resulting iterators from it will have some overhead. That is inevitable. See joint_view_iterator so you'll know what I mean.
I don't get it. Fusion iterators know their position at compile-time. Why should there be any overhead?
joint_view_iterator needs to store these info: a) an iterator from the first sequence (left) b) an iterator from the second sequence (right) then, if you have a stacked joint_view_iterators, the outermost joint_view_iterator will be quite hefty. I wonder if there's a better formulation other than segmented iterators. Hmmm... yeah, there might be room for optimization. Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net