class="lineno">   23</span>&#160;<span class="preprocessor">#include &quot;../geometric.hpp&quot;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;../common.hpp&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &quot;../vector_relational.hpp&quot;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span cla