Dave A wrote:

Jeff, I remember discussing this with you at Oopsla last year -- why not use the iterator adaptors library to help you build correct iterators?

Bad excuses only. The first date iterators pre-dated iterator adaptors. When I sat down to convert things over it was 'less-than easy'. I read the docs and experimented, but couldn't get things working -- this might have been related to 2.9x series of compilers I was using at the time, but no matter. When I ran out of patience I just dropped it and never got back to it. It has been on my 'todo' list ever since... Jeff