l">VertexListGraph</a> and <a href="./IncidenceGraph.html">IncidenceGraph</a> For each edge
  <i>(u,v)</i> in the graph, the reverse edge <i>(v,u)</i> must also
  be in the graph.
</blockquote>
  
<h3>Named Parameters</h3>

  
IN/OUT: <tt>residual_capacity_map(ResidualCapacityEdgeMap res)</tt>
<blockquote>
  This maps edges to their residual capacity. The type must be a model
  of a mutable <a
  href="../../property_map/doc/LvaluePropertyMap.html">Lvalue Property
  Map</a>. The key type of the map must be t