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Landon Curt Noll f29b37e49a improve HTML menus, add social.html, prep for IOCCC28 winners
Prepare for the winners of **IOCCC28**.

> However these are not the 2024 droids you are looking for.  :-)

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<h1>The International Obfuscated C Code Contest</h1>
<h2>1987/korn - Best one liner</h2>
<h3>one-liner that prints a message on a Un*x system</h3>
</div>
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<a class="Left" href="../hines/index.html">&larr; 1987/hines</a>
<a class="Left" href="../index.html">&uarr; 1987 &uarr;</a>
<a class="Left" href="../lievaart/index.html">1987/lievaart &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/1987/korn/korn.c">C code</a>
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<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#David_Korn">David Korn</a><br>
Location: <a href="../../location.html#US">US</a> - <em>United States of America</em> (<em>United States</em>)</li>
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<h2 id="to-build">To build:</h2>
<pre><code> make all</code></pre>
<h2 id="to-use">To use:</h2>
<pre><code> ./korn</code></pre>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>The Judges believe that this is the best one line entry ever received.
Compile on a UNIX system, or at least one using a C implementation that
fakes it. Very few people are able to determine what this program
does by visual inspection. I suggest that you stop reading this
section right now and see if you are one of the few people who can.</p>
<p>Several points are important to understand this program:</p>
<ol type="1">
<li><p>What is the symbol <code>unix</code> and what is its value in the program? Clearly
<code>unix</code> is not a function, and since <code>unix</code> is not declared to be a data type
(such as <code>int</code>, <code>char</code>, <code>struct foo</code>, <code>enum</code>, …) what must <code>unix</code> be?</p></li>
<li><p>What is the value of the symbol <code>"have"</code>? (hint: the value is NOT 4
characters, or <code>'h'</code>, or a string) Consider the fact that:</p></li>
</ol>
<pre><code> char *x;</code></pre>
<p>defines a pointer to a <code>char</code> (i.e. an address), and that the <code>=</code> assigns
things of compatible types. Since:</p>
<pre><code> x = &quot;have&quot;;</code></pre>
<p>is legal C, what type of value is <code>"have"</code>?</p>
<ol start="3" type="1">
<li>Note that the following expressions yield the same value:</li>
</ol>
<pre><code> x[3] *(x+3) *(3+x)</code></pre>
<p>since addition is commutative. What can be said about this value?</p>
<pre><code> 3[x]</code></pre>
<p><a href="https://news.slashdot.org/story/01/02/06/2030205/david-korn-tells-all">David
Korn</a>’s
<a href="https://en.wikipedia.org/wiki/KornShell">/bin/ksh</a> provides us with a greatly
improved version of the <a href="https://en.wikipedia.org/wiki/Bourne_shell">/bin/sh</a>.
The source for <a href="https://en.wikipedia.org/wiki/Version_7_Unix">v7</a>’s /bin/sh
greatly inspired this contest.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<p>No remarks were provided by the author.</p>
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