Ticket #6391: reverse_graph_desc.patch

.hpp

@@ -25 +25 @@
   namespace detail {
 
     template <typename EdgeDesc>
-    class reverse_graph_edge_descriptor {
-      public:
-      EdgeDesc underlying_desc;
-
+    class reverse_graph_edge_descriptor: public EdgeDesc {
       public:
+      typedef EdgeDesc base_t;
       explicit reverse_graph_edge_descriptor(const EdgeDesc& underlying_desc = EdgeDesc())
-        : underlying_desc(underlying_desc) {}
-
-      friend bool operator==(const reverse_graph_edge_descriptor& a, const reverse_graph_edge_descriptor& b) {
-        return a.underlying_desc == b.underlying_desc;
-      }
-      friend bool operator!=(const reverse_graph_edge_descriptor& a, const reverse_graph_edge_descriptor& b) {
-        return a.underlying_desc != b.underlying_desc;
-      }
+          : base_t(underlying_desc) {}
     };
 
     template <typename EdgeDesc>
@@ -280 +271 @@
 inline typename graph_traits<BidirectionalGraph>::vertex_descriptor
 source(const detail::reverse_graph_edge_descriptor<Edge>& e, const reverse_graph<BidirectionalGraph,GRef>& g)
 {
-    return target(e.underlying_desc, g.m_g);
+    return target(Edge(e), g.m_g);
 }
 
 template <class Edge, class BidirectionalGraph, class GRef>
 inline typename graph_traits<BidirectionalGraph>::vertex_descriptor
 target(const detail::reverse_graph_edge_descriptor<Edge>& e, const reverse_graph<BidirectionalGraph,GRef>& g)
 {
-    return source(e.underlying_desc, g.m_g);
+    return source(Edge(e), g.m_g);
 }