 class="code"><span class="constructor">Hashtbl</span>.randomize</code></a> or by
   setting the <code class="code"><span class="constructor">R</span></code> flag in the <code class="code"><span class="constructor">OCAMLRUNPARAM</span></code> environment variable.<br>
<b>Before 4.00.0 </b> the <code class="code">random</code> parameter was not present and all
   hash tables were created in non-randomized mode.<br>
</p></div>

<pre><span id="VALclear"><span class="keyword">val</span> clear</span> : <code cla