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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>gensym</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../G.html" title="G"/><link rel="previous" href="Genius-From-Mars-Technique.html" title="Genius From Mars Technique"/><link rel="next" href="Get-a-life-.html" title="Get a life!"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">gensym</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="Genius-From-Mars-Technique.html">Prev</a> </td><th width="60%" align="center">G</th><td width="20%" align="right"> <a accesskey="n" href="Get-a-life-.html">Next</a></td></tr></table><hr/></div><dt><a id="gensym"/><dt xmlns="" id="gensym"><b>gensym</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="pronunciation">/jen´sim/</span></dt></dt><dd><p> [from MacLISP for <span class="firstterm">generated
symbol</span>]</p></dd><dd><p> 1. <span class="grammar">v.</span> To invent a new name for
something temporary, in such a way that the name is almost certainly not in
conflict with one already in use. </p></dd><dd><p> 2. <span class="grammar">n.</span> The resulting name. The
canonical form of a gensym is &#8216;Gnnnn&#8217; where nnnn represents a
number; any LISP hacker would recognize G0093 (for example) as a gensym.
</p></dd><dd><p> 3. A freshly generated data structure with a gensymmed name.
Gensymmed names are useful for storing or uniquely identifying crufties
(see <a href="../C/cruft.html"><i class="glossterm">cruft</i></a>).</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="Genius-From-Mars-Technique.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="../G.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="Get-a-life-.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Genius From Mars Technique </td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"> Get a life!</td></tr></table></div></body></html>