diff -r 588ff2ca55bd -r a56e043aeab1 src/work/marci/max_flow_demo.cc
--- a/src/work/marci/max_flow_demo.cc	Thu May 20 15:40:59 2004 +0000
+++ b/src/work/marci/max_flow_demo.cc	Thu May 20 16:57:18 2004 +0000
@@ -10,6 +10,7 @@
 #include <max_flow.h>
 //#include <preflow_res.h>
 #include <hugo/for_each_macros.h>
+#include <graph_concept.h>
 
 using namespace hugo;
 
@@ -36,6 +37,7 @@
 
   typedef SageGraph MutableGraph;
 
+  //typedef FullFeatureGraphConcept Graph;
   typedef SmartGraph Graph;
   //  typedef SageGraph Graph;
   typedef Graph::Node Node;