    public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><a name="idp53427456-bb"></a><span class="identifier">discard_iterator</span><span class="special">(</span><span class="identifier">size_t</span> index <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><a name="idp53428720-bb"><