--- classes/src/FlowFilter.y.orig	Fri Aug 29 22:08:43 2003
+++ classes/src/FlowFilter.y	Fri Aug 29 22:08:51 2003
@@ -42,6 +42,7 @@
   
   #include <math.h>
 
+  using namespace std;
   #include <string>
   
   #include "CflowdRawFlow.hh"