e">s</code> contains <code class="code">c</code>.</p>

<p>Raise <code class="code"><span class="constructor">Not_found</span></code> if the character does not appear in the string</p>
</div>
<ul class="info-attributes">
<li><b>Since</b> 4.01</li>
</ul>
</div>

<pre><span id="MODULEColor"><span class="keyword">module</span> <a href="Misc.Color.html">Color</a></span>: <code class="code"><span class="keyword">sig</span></code> <a href="Misc.Color.html">..</a> <code class="code"><span class="keyword">end</span>