On Tue, Jul 5, 2016 at 4:58 PM John Cowan <xxxxxx@mercury.ccil.org> wrote:

My understanding was that you were going to add the finger-tree version
as a second implementation. In any case, what about the sets/bags/maps?
I put them off, but I'd like to include them in a later vote if you
are going to do the implementation.

OK, I'll still plan on finishing the deque implementation. I would indeed like to see an immutable set/bag/map SRFI. I'm partial to a finger tree implementation of those, but I'd certainly welcome alternative implementations as described up-thread. I have a lot on my professional and family plate so sadly I'm not finding many big chunks of time to do challenging implementation work.

Regards,

Kevin