ss="lineno">   32</span>&#160;  private:</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;    Used *m_usedClass;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;};</div></div><!-- fragment --><p> This will result in the following graph:</p>
<center><div class="image">
<img src="graph_legend.png" />
</div>
</center><p>The boxes in the above graph have the following meaning: </p>
<ul>
<li>
A filled gray box represents the struct or class for