Files
Landon Curt Noll a1c86c8a7a add original C links to entry navigation bars
The navigation bar for a winning entry now has a "_Original C_" link
(between the ✅ and the Inventory on the right hand side) so that one
may easily view the original C code that was submitted for IOCCC judging.

Ran `make www timestamp` to perform the above.
2025-08-10 12:46:23 -07:00

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<h1>The International Obfuscated C Code Contest</h1>
<h2>2014/deak - Most underscored argument</h2>
<h3>CPP and C99 abuse</h3>
</div>
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<div class="navbar">
<a class="Left" href="../birken/index.html">&larr; 2014/birken</a>
<a class="Left" href="../index.html">&uarr; 2014 &uarr;</a>
<a class="Left" href="../endoh1/index.html">2014/endoh1 &rarr;</a>
<a class="Right" href="https://github.com/ioccc-src/winner/blob/master/2014/deak/prog.c">C code</a>
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<h2 id="author">Author:</h2>
<ul>
<li>Name: <a href="../../authors.html#Ferenc_Deak">Ferenc Deak</a><br>
Location: <a href="../../location.html#ZZ">ZZ</a> - <em>Unknown location</em></li>
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<h2 id="to-build">To build:</h2>
<pre><code> make</code></pre>
<p>There is an alternate version that the author provided but fixed in 2023 to
compile with modern systems and to allow one to reconfigure the constants <code>X1</code>,
<code>X2</code>, <code>Y1</code> and <code>Y2</code> (which were magic numbers). See <a href="#alternate-code">Alternate
code</a> below.</p>
<h2 id="to-use">To use:</h2>
<pre><code> ./prog</code></pre>
<h2 id="try">Try:</h2>
<pre><code> ./prog</code></pre>
<p>Try changing bounding box coordinates in the source to explore
various regions of the fractal.</p>
<h2 id="alternate-code">Alternate code:</h2>
<p>The alternate code is included as <a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/prog.alt.c">prog.alt.c</a> so you can more
easily see the difference in what it might look like if the C was more
recognisable and also to let you reconfigure the coordinates.</p>
<h3 id="alternate-build">Alternate build:</h3>
<pre><code> make alt</code></pre>
<p>If you wish to redefine the coordinates you can do so by defining <code>X1</code>, <code>X2</code>,
<code>Y1</code> and/or <code>Y2</code>, which default to: <code>-2</code>, <code>1</code>, <code>-1.3</code> and <code>1.3</code> respectively.
For instance:</p>
<pre><code> make clobber X1=-3 X2=2 Y1=-2.3 Y2=2.3 alt</code></pre>
<p>You may pick and choose which ones to redefine.</p>
<h3 id="alternate-use">Alternate use:</h3>
<p>Use <code>prog.alt</code> as you would <code>prog</code>.</p>
<h3 id="alternate-try">Alternate try:</h3>
<pre><code> ./try.alt.sh</code></pre>
<h2 id="judges-remarks">Judges’ remarks:</h2>
<p>We consider this entry a tribute to all “Abuse of the C preprocessor”
and Mandelbrot fractal drawing entries we’ve seen over the years.</p>
<p>We liked the use of unary notation facilitated by variadic macros.</p>
<h2 id="authors-remarks">Author’s remarks:</h2>
<h3 id="portability">Portability</h3>
<p>The application was written on a standard Ubuntu 14.04 and tested with
gcc 4.9.1 and clang 3.5 on a 64 bit system (though this should not matter).
The application makes no assumption regarding any system specific settings,
and it only needs a console to run. The provided Makefile is just to have
an easy compilation. I don’t see any problems porting it to different
compiler/system as long as it supports the C99 standard.</p>
<h3 id="the-application">The application</h3>
<p>The purpose of the application is mainly to illustrate the weird possibilities
of the C preprocessor, rather than to be a full featured console mode Mandelbrot
drawer. There are tools much better suited for drawing fractals.</p>
<p>The usage of recognizable elements from the C programming language in the
application source code is intentionally kept to a bare minimum. If this phrase
would not be true, the application would be the following:</p>
<pre><code> double _[]={-2
,1,-1.3 ,1.3, 0, 0,0,0
,0 ,0,50, 80, 0,0,0 ,255
, 8,0}; int main (
int j) {if (j== 1 ){ if(
_[12] &gt;_[10] )_[17]=1 ;} if
(_[13] &gt;_[11 ] ||_[17]==1) return 1
;_[6] = _ [13] / _[11]*(_[1]-_[ 0])
+_[ 0]; _ [7]=_[12]/_[10]*(_[3]-_[2] )+_
[2];_[8]=_[9]=_[14]=0;l2:_[4]=_[8] * _ [8]
;_[ 5]= _ [9]*_[9];_[9]=2*_[8]*_[9]+ _[7
];_[8 ] = _ [ 4 ]-_[5]+_[6];_[14 ]++
;if((_ [14]&lt; _ [15])&amp;&amp;(_[4]+ _[ 5]
&lt;_[16 ])) goto l2; putchar(
&quot; #@*+ &quot;[( int) _[14]%
5 ]);_ [13 ] ++ ; main (
0) ;_[12]++; _[13] =0
;if(_ [17] !=1) putchar
(0xa); main(1);}</code></pre>
<p>The application expects no parameters, the only way you can change the behaviour
is to modify the source code at the indicated location: the line
<code>/* &lt;-- Configure here: X1, X2, Y1, Y2 */</code> is intentionally not obfuscated so
that the adventurous programmer can manually modify the coordinates of the
fractal to be drawn on the screen.</p>
<h3 id="compiler-warnings">Compiler warnings</h3>
<p>Yes, unfortunately there are compiler warnings of the kind “initialization makes
integer from pointer without a cast” but the provided Makefile automatically
disables them.</p>
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<h1 id="inventory-for-2014deak">Inventory for 2014/deak</h1>
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<h2 id="primary-files">Primary files</h2>
<ul>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/prog.c">prog.c</a> - entry source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/Makefile">Makefile</a> - entry Makefile</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/prog.alt.c">prog.alt.c</a> - alternate source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/prog.orig.c">prog.orig.c</a> - original source code</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/try.alt.sh">try.alt.sh</a> - script to try alternate code</li>
</ul>
<h2 id="secondary-files">Secondary files</h2>
<ul>
<li><a href="2014_deak.tar.bz2">2014_deak.tar.bz2</a> - download entry tarball</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/README.md">README.md</a> - markdown source for this web page</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/.entry.json">.entry.json</a> - entry summary and manifest in JSON</li>
<li><a href="https://github.com/ioccc-src/winner/blob/master/2014/deak/.gitignore">.gitignore</a> - list of files that should not be committed under git</li>
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