ier">b</span><span class="special">;</span>
<span class="special">};</span>
</pre>
<p>
        </p>
<p>
          The following construct is required to allow the <code class="computeroutput"><span class="identifier">complex</span></code>
          data structure to be utilized as a <a href="../../../../../../../libs/fusion/doc/html/index.html" target="_top">Boost.Fusion</a>
          sequence. This is required as we will emit output for this data structure
          with a <span class="emphasis"><em>Spirit