On 2020-09-06 11:33 +0200, Marc Nieper-Wißkirchen wrote: > So here is some constructive proposal to (hopefully finally) resolve > the problem with the running time guarantees. Instead of listing all > proposed changes, I applied them to the latest draft in John's > repository and you'll find the corresponding patch file attached to > this email. Please go over the proposed changes. Thanks for making this extensive revision, which I think makes the running time requirements much more precise. The only comment I have is that the variadic procedures range-fold, etc. are described as running in time "O(n) where n is the sum of the total accessing times of the ranges", which is a slight oversimplification. As a rule, these procedures terminate when the shortest range runs out, so the actual requirement is rather more complicated. But the requirement given is indeed the upper bound on running time, so I wouldn't change anything. I agree with the substantial changes, including the revised running time requirement for range-append. I think this patch should be merged. -- Wolfgang Corcoran-Mathe <xxxxxx@sigwinch.xyz> "Lisp is not about writing a sequence of serial instructions; it is about building complex structures by summing parts." --Riastradh