diff -r 0d58f0301923 -r 94535d1833b5 lemon/lp_base.h
--- a/lemon/lp_base.h	Wed Jun 15 10:10:59 2005 +0000
+++ b/lemon/lp_base.h	Wed Jun 15 10:13:08 2005 +0000
@@ -488,8 +488,6 @@
 	Base::insert(std::make_pair(v, 1));
       }
       ///\e
-      DualExpr(const Value &v) {}
-      ///\e
       void set(const Key &v,const Value &c) {
 	Base::insert(std::make_pair(v, c));
       }
@@ -706,10 +704,10 @@
     ///\return The created column.
     ///\bug This is a temportary function. The interface will change to
     ///a better one.
-    Col addCol(Value l,const DualExpr &e, Value obj=0) {
+    Col addCol(const DualExpr &e, Value obj=0) {
       Col c=addCol();
       setCol(c,e);
-      objCoeff(c,0);
+      objCoeff(c,obj);
       return c;
     }