diff -r aec340db8fc2 -r 9c7834ac5e64 demo/reader_writer_demo.cc
--- a/demo/reader_writer_demo.cc	Wed Aug 17 20:39:11 2005 +0000
+++ b/demo/reader_writer_demo.cc	Wed Aug 17 21:52:50 2005 +0000
@@ -26,7 +26,6 @@
 
 #include <iostream>
 #include <lemon/smart_graph.h>
-#include <lemon/invalid.h>
 #include <lemon/graph_reader.h>
 #include <lemon/graph_writer.h>