LispForum

Sweet. Thanks for the clarification!

Hey thanks for the reply. Yep your code works fine. As does this i found out:
Which indicates the issue lies with the nreverse function?

Can anyone tell me what I'm doing wrong here: (let* ((x '(1 2 3 4 5)) (y)) (setf y (nreverse x))) I just want to set one variable as the reverse list of the other but i get the following error: ; in: LAMBDA NIL ; (NREVERSE X) ; ; caught WARNING: ; Destructive function NREVERSE called on constant dat...

Okay that's great to know. I had no idea. It was a surprise alright! That was a section of the main function. I couldn't understand the values i was getting out of the thing so i stripped it down to that and saw the problem. Thanks for the advice. Would have taken me aaages to figure that one out

It works! What was i doing wrong?

Hey thanks for the reply. Here's the code at the moment: (defun list-maker (list*) (let* ((current-val 0) (new-list)) (setf new-list '(0)) (loop for i in list* do (if (stringp i) (setf current-val (read-from-string i)) (setf current-val i)) (print (push (+ current-val (nth 0 new-list)) new-list))) (...

I've encountered i problem I've never seen before. I have function that has variables declared at the start. One of the values is a list. The function works fine the first time i call it. But when i call it a second time the list variable retains the value it ended up with from the previous function...

Ah yes this is what my computer scientist friend told me i should really focus on. Data structure. Thanks for the direction.

What you want is to create a list of functions. Those either have to be preexisting function, which can be retrieved from the function namespace with FUNCTION , or anonymous functions . You can then call them with FUNCALL . Also, if you want random access the arrays/vectors are better than lists. R...

Thanks for the link Ramarren. I don't recall seeing how to do it in that chapter. I've tried funcall etc. I'll have another look. Is it possible to structure lists of functions and then call those functions from the list with a function like nth or assoc? Sure, but you didn't make a list of function...