GetNNodes() in NodeList fixes bug 225

src/node/node-list.cc

@@ -172,5 +172,10 @@ NodeList::GetNode (uint32_t n)
 {
   return NodeListPriv::Get ()->GetNode (n);
 }
+uint32_t
+NodeList::GetNNodes (void)
+{
+  return NodeListPriv::Get ()->GetNNodes ();
+}
 
 }//namespace ns3

src/node/node-list.h

@@ -65,6 +65,10 @@ public:
    * \returns the Node associated to index n.
    */
   static Ptr<Node> GetNode (uint32_t n);
+  /**
+   * \returns the number of nodes currently in the list.
+   */
+  static uint32_t GetNNodes (void);
 };
 
 }//namespace ns3