d::pair</tt>, where the type in the pair is an integer type. The
  integers will correspond to vertices, and they must all fall in the
  range of <tt>[0, n)</tt>. The <tt>value_type</tt> of the
  <tt>ep_iter</tt> should be <tt>EdgeProperty</tt>.

<hr>


<h3>Non-Member Functions</h3>

<hr>
<pre>
std::pair&lt;vertex_iterator, vertex_iterator&gt;
vertices(const adjacency_matrix&amp; g)
</pre>
Returns an iterator-range providing access to the vertex set of graph <tt>g</tt>.<br>
(Required by <a href="VertexListG