 ensure that data is not buffered when unnecessary
        (<code class="computeroutput"><span class="identifier">flush_multi_pass</span></code> is available
        from the <span class="emphasis"><em>Spirit.Qi</em></span> parser <a href="../../../../repository/doc/html/index.html" target="_top">Repository</a>).
      </p>
<p>
        Here we present a minimal example showing a minimal use case. The <code class="computeroutput"><span class="identifier">multi_pass</span></code> iterator is highly configurab