Michael Goldshteyn:

I think that having a ?configurable? deque class template is one of the best things that could be offered by a boost Containers library. I have always wondered why noone wrote a version of the deque class template that allowed the configuration of such things as the page / block size, rather than have it be determined by a compile time formula based on the size of the data type being stored. It would seem to me that the page / block size is one of the more critical pieces affecting the size / speed tradeoffs in a deque?s performance when there are many insertions taking place.

The thread I mentioned has a link to a segmented_array container which may be of interest. I agree that what you suggest would be an improvement. Shalom, Brian Wood Ebenezer Enterprises http://webEbenezer.net http://webebenezer.net/