an class="dv">0</span>) {</span>
<span id="cb19-8"><a href="Intro.html#cb19-8"></a><span class="kw">message</span>(<span class="st">&quot;Y is negative&quot;</span>)}</span></code></pre></div>
<ul>
<li>Long lines</li>
</ul>
<div class="sourceCode" id="cb20"><pre class="sourceCode r"><code class="sourceCode r"><span id="cb20-1"><a href="Intro.html#cb20-1"></a><span class="co"># Good</span></span>
<span id="cb20-2"><a href="Intro.html#cb20-2"></a><span class="kw">do_something_very_complicated</span>(</span>
<