# HG changeset patch
# User deba
# Date 1157372823 0
# Node ID 8057a4245685cb34705a45622a5cc5f10304b008
# Parent  d6e4efb477d8fbb7f0db016bf91924f7cb82d57b
Bug fix in SmartEdgeSet

+ validity check function

diff -r d6e4efb477d8 -r 8057a4245685 lemon/edge_set.h
--- a/lemon/edge_set.h	Mon Sep 04 12:15:20 2006 +0000
+++ b/lemon/edge_set.h	Mon Sep 04 12:27:03 2006 +0000
@@ -584,15 +584,6 @@
     
     typedef _Graph Graph;
 
-    class UnsupportedOperation : public LogicError {
-    public:
-      virtual const char* what() const throw() {
-        return "lemon::SmartEdgeSet::UnsupportedOperation";
-      }
-    };
-    
-
-
   protected:
 
     typedef typename Parent::NodesImplBase NodesImplBase;
@@ -618,6 +609,10 @@
 
       virtual ~NodesImpl() {}
       
+      bool attached() const {
+        return Parent::attached();
+      }
+
     protected:
 
       virtual void erase(const Node& node) {
@@ -626,6 +621,7 @@
           Parent::erase(node);
         } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
           Parent::clear();
+          throw;
         }
       }
       virtual void erase(const std::vector<Node>& nodes) {
@@ -636,6 +632,7 @@
           Parent::erase(nodes);
         } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
           Parent::clear();
+          throw;
         }
       }
       virtual void clear() {
@@ -657,6 +654,10 @@
     SmartEdgeSet(const Graph& graph) : nodes(graph, *this) {
       Parent::initalize(graph, nodes);
     }
+
+    bool valid() const {
+      return nodes.attached();
+    }
     
   };
 
@@ -712,6 +713,10 @@
 	: Parent(graph), _edgeset(edgeset) {}
 
       virtual ~NodesImpl() {}
+
+      bool attached() const {
+        return Parent::attached();
+      }
       
     protected:
 
@@ -754,6 +759,10 @@
     SmartUEdgeSet(const Graph& graph) : nodes(graph, *this) {
       Parent::initalize(graph, nodes);
     }
+
+    bool valid() const {
+      return nodes.attached();
+    }
     
   };