LispForum

Yes, I believe this is the truth both in the wording and the spirit of CL. To go a bit further, but perhaps not pertinent. As I alluded to, CL is flexible enough that you don't need to do this (as say, a purely functional language wouldn't be) so there might be cases where you decide you want to wri...

Pondering what you mean. (my-sort vec ...) shouldn't sort in place? And my-sort looks like this: That depends on what you mean. If, by sort in place, you mean it moved elements around inside the vector, then, it is fine if it sorts in place (it is often times a nice thing memory usage wise to guara...

As a beginner, I would like to ask is passing a comparison function as an argument the way to do it? Are there more LISPy ways? Thanks. Yes, it is. Also there are more Lispy ways to do it. The SORT function in CL also includes a "key" function, which simplifies the comparison predicate. T...

This seems a bit old, but it is unanswered so I guess I'll try to point you in some direction. I have not bothered to look at your code, but if you have something that can perform a depth first search or a breadth first search there is not much more to save the path lengths. All you need to do is sa...

Hi

Have you found any interest out there? I am moving to Carol Stream in about a month and would love to be part of a Lisp user group, although we might benefit with a group larger than 2. Let me know if you have any info on area lugs or want to organize something ourselves.

Zach KS

Yeah, I just installed GCL and ran your code and no errors. You will almost certainly need to reinstall GCL. Did you build from source, or download a binary? (I always say go binary if you can). If you are reinstalling your Lisp system, you might as well go with some other Lisp unless your class sai...

Regarding REMOVE, I tried to change it before it caused confusion. Just me being stupid, sorry. I actually don't have any hints. My first suspicion is that your GCL install is screwed up. I just tried it in SBCL and it worked like a charm. I'm downloading GCL to see what's up there right now. Sorry ...

Is this homework? I ask because there is the REMOVE function... (edit: yes, clearly I don't know what REMOVE does... :oops: ) Your code is almost correct, I think. However, I don't know why you are checking for (null x), and that last case should be (cons (car l) (take-out-first x (cdr l))) not APPE...

I don't, but it sure seems like CLISP isn't receiving your input, as bash (the shell) is giving the error. You might just post exactly was shows on screen because either CLISP is quiting and you don't notice or Bash+Cygwin is doing something funny where it is grabbing your commands before they get t...

It's funny that you mentioned REDUCE before, but chose to not use it here, since it is technically the correct thing to do whereas APPLY might fail on a hypothetical, severely limited Lisp (perhaps for embedded systems?) when the list longer than 50. Also, I think the task was to do the same thing w...