<!DOCTYPE html>
<html><head>
<meta charset="utf-8">
<title>lolcat-c | Home</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="mobile-web-app-capable" content="yes">
<meta name="color-scheme" content="dark light">
<link rel="stylesheet" href="/style.css">
</head>
<body><nav>
<div class="internal">
<a href="/" title="Home">Home</a>
<a href="/blog/" title="Blog">Blog</a>
<a href="/projects/" title="Projects">Projects</a>
<a href="/about/" title="About">About</a>
</div>
<div class="external">
<a href="https://git.jaseg.de/" title="cgit">cgit</a>
<a href="https://github.com/jaseg" title="Github">Github</a>
<a href="https://gitlab.com/neinseg" title="Gitlab">Gitlab</a>
<a href="https://chaos.social/@jaseg" title="Mastodon">Mastodon</a>
</span>
</nav>
<header>
<h1>lolcat-c</h1>
<ul class="breadcrumbs">
<li><a href="/">jaseg.de</a></li>
<li><a href="/projects/">Projects</a></li><li><a href="/projects/lolcat-c/">lolcat-c</a></li>
</ul>
</header>
<main>
<div class="links">
<a href="https://git.jaseg.de/lolcat.git">Sources</a>
<a href="https://github.com/jaseg/lolcat">Github</a>
<a href="https://github.com/jaseg/lolcat/issues">Issues</a>
</div>
<div class="document">
<div class="section" id="what">
<h2>What?</h2>
<img alt="LOLCat-Rainbow.jpg" src="LOLCat-Rainbow.jpg" />
</div>
<div class="section" id="screenshot">
<h2>Screenshot</h2>
<img alt="screenshot.png" src="screenshot.png" />
<img alt="sl.gif" src="sl.gif" />
</div>
<div class="section" id="installation">
<h2>Installation</h2>
<div class="section" id="archlinux">
<h3>Archlinux</h3>
<p>There's an <a class="reference external" href="https://aur.archlinux.org/packages/c-lolcat">AUR package</a>:</p>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">$<span class="w"> </span>git<span class="w"> </span>clone<span class="w"> </span>https://aur.archlinux.org/packages/c-lolcat<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>$<span class="w"> </span><span class="nb">cd</span><span class="w"> </span>c-lolcat<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>$<span class="w"> </span>makepkg<span class="w"> </span>-csi
</span></pre>
</div>
<div class="section" id="fedora">
<h3>Fedora</h3>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">$<span class="w"> </span>dnf<span class="w"> </span>install<span class="w"> </span>lolcat
</span></pre>
</div>
<div class="section" id="ubuntu-snap">
<h3>Ubuntu (Snap)</h3>
<p>See <a class="reference external" href="https://blog.simos.info/how-to-make-a-snap-package-for-lolcat-with-snapcraft-on-ubuntu/">this awesome blog post by a kind person from the internet</a>:</p>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">$<span class="w"> </span>snap<span class="w"> </span>install<span class="w"> </span>lolcat-c
</span></pre>
</div>
<div class="section" id="mac">
<h3>Mac</h3>
<p>Build loclcat with:</p>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">$<span class="w"> </span>make<span class="w"> </span>lolcat
</span></pre>
<p>...and put the resulting binary at a place of your choice.</p>
</div>
<div class="section" id="others">
<h3>Others</h3>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">$<span class="w"> </span>make<span class="w"> </span><span class="o">&&</span><span class="w"> </span>sudo<span class="w"> </span>make<span class="w"> </span>install
</span></pre>
</div>
</div>
<div class="section" id="why">
<h2>Why?</h2>
<p>This <cite>lolcat</cite> clone is an attempt to reduce the world's carbon dioxide emissions by optimizing inefficient code. It's
>10x as fast and <0.1% as large as the original one.</p>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">newton~/d/lolcat<span class="w"> </span><<span class="m">3</span><span class="w"> </span>dmesg>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>newton~/d/lolcat<span class="w"> </span><<span class="m">3</span><span class="w"> </span><span class="nb">time</span><span class="w"> </span>upstream/bin/lolcat<span class="w"> </span>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span><span class="m">13</span>.51user<span class="w"> </span><span class="m">1</span>.34system<span class="w"> </span><span class="m">0</span>:15.99elapsed<span class="w"> </span><span class="m">92</span>%CPU<span class="w"> </span><span class="o">(</span>0avgtext+0avgdata<span class="w"> </span>10864maxresident<span class="o">)</span>k<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>0inputs+0outputs<span class="w"> </span><span class="o">(</span>0major+1716minor<span class="o">)</span>pagefaults<span class="w"> </span>0swaps<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>newton~/d/lolcat<span class="w"> </span><<span class="m">3</span><span class="w"> </span><span class="nb">time</span><span class="w"> </span>./lolcat<span class="w"> </span>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span><span class="m">0</span>.02user<span class="w"> </span><span class="m">0</span>.00system<span class="w"> </span><span class="m">0</span>:00.09elapsed<span class="w"> </span><span class="m">34</span>%CPU<span class="w"> </span><span class="o">(</span>0avgtext+0avgdata<span class="w"> </span>1936maxresident<span class="o">)</span>k<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>0inputs+0outputs<span class="w"> </span><span class="o">(</span>0major+117minor<span class="o">)</span>pagefaults<span class="w"> </span>0swaps
</span></pre>
<p>Bonus comparison with <a class="reference external" href="https://github.com/tehmaze/lolcat/">python-lolcat</a>:</p>
<pre class="code sh literal-block">
<span class="lineno"></span><span class="line">newton~/d/lolcat<span class="w"> </span><<span class="m">3</span><span class="w"> </span>dmesg>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>$<span class="w"> </span><span class="nb">time</span><span class="w"> </span>python-lolcat<span class="w"> </span>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span><span class="m">12</span>.27user<span class="w"> </span><span class="m">0</span>.00system<span class="w"> </span><span class="m">0</span>:12.29elapsed<span class="w"> </span><span class="m">99</span>%CPU<span class="w"> </span><span class="o">(</span>0avgtext+0avgdata<span class="w"> </span>11484maxresident<span class="o">)</span>k<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>0inputs+0outputs<span class="w"> </span><span class="o">(</span>0major+1627minor<span class="o">)</span>pagefaults<span class="w"> </span>0swaps<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>$<span class="w"> </span><span class="nb">time</span><span class="w"> </span>c-lolcat<span class="w"> </span>foo<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span><span class="m">0</span>.29user<span class="w"> </span><span class="m">0</span>.00system<span class="w"> </span><span class="m">0</span>:00.30elapsed<span class="w"> </span><span class="m">98</span>%CPU<span class="w"> </span><span class="o">(</span>0avgtext+0avgdata<span class="w"> </span>468maxresident<span class="o">)</span>k<span class="w"></span></span>
<span class="lineno"></span><span class="line"><span class="w"></span>0inputs+0outputs<span class="w"> </span><span class="o">(</span>0major+21minor<span class="o">)</span>pagefaults<span class="w"> </span>0swaps
</span></pre>
<p>(Read: <cite>c-lolcat << python-lolcat << ruby-lolcat</cite>)</p>
</div>
</div>
</main><footer>
Copyright © 2023 Jan Sebastian Götte
/ <a href="/about/">About</a>
/ <a href="/imprint/">Imprint</a>
</footer>
<script>
if(navigator.getEnvironmentIntegrity!==undefined)document.querySelector('body').innerHTML=`<h1>Your browser
contains Google DRM</h1>"Web Environment Integrity" is a Google euphemism for a DRM that is designed to
prevent ad-blocking, and which Google has forced into their browsers against widespread public opposition.
In support of an open web, this website does not function with this DRM. Please install a browser such
as <a href="https://www.mozilla.org/en-US/firefox/new/">Firefox</a> that respects your freedom and supports
ad blockers.`;
</script>
</body>
</html>