On Sun, Apr 24, 2011 at 7:53 PM, Eli Barzilay <e...@barzilay.org> wrote: > Here's another idea: in a world of immutable lists there are *much* > less circular lists. (Even more: the fact that they're generated via > a temporary structure that is then copied means that they're usually > very short too.) Maybe it's fine to take it to the next level and > just have all the standard functions ignore cycles? Possibly with > alternative names (or a new module) for versions that do account for > cycles -- therefore putting the burden on the rare uses of circular > lists?
How about, instead of that: keep a counter and when you've seen 1000 (or 10000) cons cells or some other large number, then switch into a safe mode? Robby _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
