rd">val</span> set</span> : <code class="type">'a <a href="Weak.html#TYPEt">t</a> -&gt; int -&gt; 'a option -&gt; unit</code></pre><div class="info ">
<code class="code"><span class="constructor">Weak</span>.set ar n (<span class="constructor">Some</span> el)</code> sets the <code class="code">n</code>th cell of <code class="code">ar</code> to be a
   (full) pointer to <code class="code">el</code>; <code class="code"><span class="constructor">Weak</span>.set ar n <span class="constructor">None</span></code>