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3.9 KiB
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52 lines
3.9 KiB
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<?xml version="1.0" encoding="ISO-8859-1" standalone="no"?>
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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>Obfuscated C Contest</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="../O.html" title="O"/><link rel="previous" href="Ob-.html" title="Ob-"/><link rel="next" href="obi-wan-error.html" title="obi-wan error"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Obfuscated C Contest</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="Ob-.html">Prev</a><EFBFBD></td><th width="60%" align="center">O</th><td width="20%" align="right"><EFBFBD><a accesskey="n" href="obi-wan-error.html">Next</a></td></tr></table><hr/></div><dt><a id="Obfuscated-C-Contest"/><dt xmlns="" id="Obfuscated-C-Contest"><b>Obfuscated C Contest</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> (in full, the ‘International Obfuscated C Code Contest’,
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or IOCCC) An annual contest run since 1984 over Usenet by Landon Curt Noll
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and friends. The overall winner is whoever produces the most unreadable,
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creative, and bizarre (but working) C program; various other prizes are
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awarded at the judges' whim. C's terse syntax and macro-preprocessor
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facilities give contestants a lot of maneuvering room. The winning
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programs often manage to be simultaneously (a) funny, (b) breathtaking
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works of art, and (c) horrible examples of how <span class="emphasis"><em>not</em></span> to
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code in C.</p><p>This relatively short and sweet entry might help convey the flavor of
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obfuscated C:</p><table border="0" bgcolor="#E0E0E0"><tr><td><pre class="programlisting">
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/*
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* HELLO WORLD program
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* by Jack Applin and Robert Heckendorn, 1985
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* (Note: depends on being able to modify elements of argv[],
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* which is not guaranteed by ANSI and often not possible.)
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*/
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main(v,c)char**c;{for(v[c++]="Hello, world!\n)";
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(!!c)[*c]&&(v--||--c&&execlp(*c,*c,c[!!c]+!!c,!c));
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**c=!c)write(!!*c,*c,!!**c);}
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</pre></td></tr></table><p>Here's another good one:</p><table border="0" bgcolor="#E0E0E0"><tr><td><pre class="programlisting">
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/*
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* Program to compute an approximation of pi
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* by Brian Westley, 1988
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* (requires pcc macro concatenation; try gcc -traditional-cpp)
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*/
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#define _ -F<00||--F-OO--;
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int F=00,OO=00;
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main(){F_OO();printf("%1.3f\n",4.*-F/OO/OO);}F_OO()
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{
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_-_-_-_
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_-_-_-_
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}
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</pre></td></tr></table><p>Note that this program works by computing its own area. For more
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digits, write a bigger program. See also
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<a href="../H/hello-world.html"><i class="glossterm">hello world</i></a>.</p><p>The IOCCC has an official home page at <a href="http://www.ioccc.org/" target="_top">http://www.ioccc.org/</a>.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="Ob-.html">Prev</a><EFBFBD></td><td width="20%" align="center"><a accesskey="u" href="../O.html">Up</a></td><td width="40%" align="right"><EFBFBD><a accesskey="n" href="obi-wan-error.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Ob-<2D></td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"><EFBFBD>obi-wan error</td></tr></table></div></body></html>
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