# HG changeset patch
# User deba
# Date 1147686275 0
# Node ID 626939628b4a8302b5e8aa172124973387fa4538
# Parent  94a7deb46c073b407f1b1b9e56d584c58466479d
Bug fix

diff -r 94a7deb46c07 -r 626939628b4a lemon/topology.h
--- a/lemon/topology.h	Fri May 12 15:29:42 2006 +0000
+++ b/lemon/topology.h	Mon May 15 09:44:35 2006 +0000
@@ -245,11 +245,12 @@
   template <typename Graph>
   bool stronglyConnected(const Graph& graph) {
     checkConcept<concept::StaticGraph, Graph>();
-    if (NodeIt(graph) == INVALID) return true;
 
     typedef typename Graph::Node Node;
     typedef typename Graph::NodeIt NodeIt;
 
+    if (NodeIt(graph) == INVALID) return true;
+
     using namespace _topology_bits;
 
     typedef DfsVisitor<Graph> Visitor;