1.1 --- a/lemon/concept/undir_graph.h	Tue Jun 07 16:11:23 2005 +0000
     1.2 +++ b/lemon/concept/undir_graph.h	Tue Jun 07 16:12:14 2005 +0000
     1.3 @@ -26,6 +26,7 @@
     1.4  #define LEMON_CONCEPT_UNDIR_GRAPH_H
     1.5  
     1.6  #include <lemon/concept/graph_component.h>
     1.7 +#include <lemon/utility.h>
     1.8  
     1.9  namespace lemon {
    1.10    namespace concept {
    1.11 @@ -233,6 +234,11 @@
    1.12  
    1.13      class UndirGraph {
    1.14      public:
    1.15 +      ///\e
    1.16 +
    1.17 +      ///\todo undocumented
    1.18 +      ///
    1.19 +      typedef True UndirTag;
    1.20  
    1.21        /// Type describing a node in the graph
    1.22        typedef GraphNode Node;