LispForum

ohh ya your right i didn't realize that lol

turns out that the answer is actually quite simple:

(defun and-nl (a b) (and a b))

since arguments are evaluated before they are passed to the routine body we have an AND that forces the evaluation of both arguments to AND.

thank youuuuuuuuu

I don't actually mean destructively replace, I mean lets say you pass the list (a b c d e), I want to return the list (8 8 8 8 8)... so basically I want a list returned with the same number of elements but instead of the original items, it'd be an item of my choosing. I am able to do this using the ...

If (* 2 2 2) is somehow converted to (* (* 2 2) 2), then that extra step used in the conversion would mean that technically it would take slightly longer for the CPU to compute right? In SBCL, it actually does take a single extra operation to do (* a (* b c)) as compared to (* a b c). I'd assume CL...

well actually the reason I am wondering is not because I am worried about efficiency, its more of an argument. I lost marks on an assignment (an entire letter grade) because "there is a simpler solution"... The question said: "compute 2^3"... Anyways, I am arguing that his defini...

just to add, I realize that operators like * are n-ary operators... but I am wondering specifically which one is "faster", or more efficient, aside from the argument that one is "easier to read" then the other...

you can write (* (* 2 2) 2) or you can write (* 2 2 2)... I am wondering what is happening behind the scenes when comparing the two. If (* 2 2 2) is somehow converted to (* (* 2 2) 2), then that extra step used in the conversion would mean that technically it would take slightly longer for the CPU t...

wow there are so many ideas, thank you. I think the problem with this question is that it is suppose to avoid higher order functions that do the work for you... apparently there is an elegant solution that uses only basic functions, no macros. once I figure it out I will post it here. I don't think ...

I am trying to write a simple boolean AND function that uses eager/strict evaluation. That is, I want both arguments to the AND function to be evaluated. I am able to write a function to simulate this using IF statements, but it is long, I am wondering if anyone has any ideas how to write a shorter,...