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POLisp warning: xx is neither declared nor bound, it will be treated as if it were declared SPECIAL
 

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    <p>I am new to lisp and am writing a few simple programs to get more familiar with it. One of the things I am doing is writing a recursive and iterative version of a factorial method. However, I have come across a problem and can't seem to solve it.</p> <p>I saw a similar error at <a href="https://stackoverflow.com/questions/1187262/lisp-char-is-neither-declared-nor-bound">Lisp: CHAR is neither declared nor bound</a> but a solution wasn't actually reached, other than the OP realized he made a "typing mistake". In the REPL I can use the setf function and it works fine. I am also using LispBox with emacs. I would appreciate any suggestions!</p> <pre><code>(defun it-fact(num) (setf result 1) (dotimes (i num) (setf result (* result (+ i 1))) ) ) </code></pre> <p>WARNING in IT-FACT : RESULT is neither declared nor bound, it will be treated as if it were declared SPECIAL.</p>
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    1. COSee http://www.cs.cmu.edu/Groups/AI/html/faqs/lang/lisp/part1/faq-doc-4.html, especially the "GOOD:" example. People here are pretty friendly either way, but you code is easier to read if it's indented more like typical Lisp code. Cheers!
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