.
      </p>
<pre class="programlisting"><span class="identifier">function_output_iterator</span><span class="special">&amp;</span> <span class="keyword">operator</span><span class="special">++();</span>
</pre>
<p>
        <span class="bold"><strong>Returns: </strong></span> <code class="computeroutput"><span class="special">*</span><span class="keyword">this</span></code>.
      </p>
<pre class="programlisting"><span class="identifier">function_output_iterator</span><span class="special">&amp;</span> <span