"literal-block">
void clear_vertex(vertex_descriptor u, adjacency_list&amp; g);
</pre>
<p>Removes all edges to and from vertex <tt class="docutils literal"><span class="pre">u</span></tt>. The vertex still appears
in the vertex set of the graph.</p>
<p>The affect on descriptor and iterator stability is the same as that of
invoking <tt class="docutils literal"><span class="pre">remove_edge()</span></tt> for all of the edges that have <tt class="docutils literal"><span class="pre">u</span></tt> as the source
