From the manual
Is there a system variable that stores the index/position of '(1 2)?
And if not,
1)What is the best way to get the index?
2):) Put it on _my_ wish list.
thanks
tim

what is it , you want to do with that index number?

From my previous programming experience, I've had many needs for the index of a search result.
I'm aware that in newlisp one takes more of a functional approach, but it seems to me
that the execution of 'assoc in the native C code would have some sort of offset recorded, thus
it would be an additional (and valuable) resource to have the offset (index) provided in a system variable.
The specific case that prompts me to ask this question is where I would have an "associative" list whose
members would need to be
1)accessed
2)Any number of possible logical branches executed based on the contents of the member.
3)changed
I've written this:

Thus (I think) getAssocPos will allow me to retrieve, then store an offset/index which will reference a member-list
and then allow me to easily reset it in the outer list via 'setf.
I hope this answers your question.
Thanks for the 'find example. I have use for that.
cheers
tim

OK. Let me take another crack at this: I will use examples that are not tested code but are meant to be illustrative:
I have a list, let's call it 'parent-list. It is composed of lists, and we will call them 'member-list(s). They can be
accessed by 'assoc
Suppose we had a $found system variable

With the function I wrote, I could do something like this:
That's all for today.
G'night
tim

In the 'setf' expression you could use the '$it' system variable in a more complex function:



'$it' contains the association found and the 'transform-found-assoc' function does all the work required, then at last returns the new changed item and 'parent-list' is changed.

Understood.
Thanks
tim