quent <a href="Weak.html#VALget"><code class="code"><span class="constructor">Weak</span>.get</code></a><code class="code"> ar n</code> can return <code class="code"><span class="constructor">None</span></code>.<br>
</div>

<pre><span id="VALfill"><span class="keyword">val</span> fill</span> : <code class="type">'a <a href="Weak.html#TYPEt">t</a> -&gt; int -&gt; int -&gt; 'a option -&gt; unit</code></pre><div class="info ">
<code class="code"><span class="constructor">Weak</span>.fill ar ofs len el</code> s