s <a href="../../utility/MultiPassInputIterator.html">MultiPassInputIterator</a>. <br>
  (Required by <a href="BidirectionalGraph.html">BidirectionalGraph</a>.)

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<tt>graph_traits&lt;adjacency_matrix&gt;::adjacency_iterator</tt>
<br><br>
  The type for the iterators returned by <tt>adjacent_vertices()</tt>. This
  iterator models the same concept as the out-edge iterator.<br>
  (Required by <a href="AdjacencyGraph.html">AdjacencyGraph</a>.)

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<tt>graph_traits&lt;adjacency_matrix&gt;::directed_catego