    </p>
<pre class="programlisting"><span class="identifier">flush_multi_pass</span>
</pre>
<p>
          which will call the <code class="computeroutput"><span class="identifier">clear_queue</span><span class="special">()</span></code> member function if the current iterators
          are of the type <code class="computeroutput"><span class="identifier">multi_pass</span></code>.
          This will cause any buffered data to be erased. This also will invalidate
          all other copies of multi_pass an