diff -r b810a07248a0 -r 48f9299b390d src/lemon/lp_base.h
--- a/src/lemon/lp_base.h	Wed Apr 06 17:19:54 2005 +0000
+++ b/src/lemon/lp_base.h	Thu Apr 07 06:31:03 2005 +0000
@@ -392,8 +392,11 @@
     virtual void _setObjCoeff(int i, Value obj_coef) = 0;
     virtual SolveExitStatus _solve() = 0;
     virtual Value _getPrimal(int i) = 0;
-    virtual SolutionStatus _getPrimalType() = 0;
-
+    virtual Value _getPrimalValue() = 0;
+    virtual SolutionStatus _getPrimalStatus() = 0;
+    virtual void _setMax() = 0;
+    virtual void _setMin() = 0;
+    
 
     void clearObj() {}
   public:
@@ -427,7 +430,7 @@
     ///\ref Col as its \c mapped_type
     ///like
     ///\code
-    ///std::map<AnyType,LpSolverBase::Col>
+    ///std::map<AnyStatus,LpSolverBase::Col>
     ///\endcode
     ///- an iterable lemon \ref concept::WriteMap "write map" like 
     ///\code
@@ -606,6 +609,12 @@
 	objCoeff((*i).first,(*i).second);
     }
 
+    ///Maximize
+    void max() { _setMax(); }
+    ///Minimize
+    void min() { _setMin(); }
+
+    
     ///@}
 
 
@@ -623,13 +632,21 @@
     ///@{
 
     ///\e
-    SolutionStatus primalType() {
-      return _getPrimalType();
+    SolutionStatus primalStatus() {
+      return _getPrimalStatus();
     }
 
     ///\e
     Value primal(Col c) { return _getPrimal(cols.floatingId(c.id)); }
 
+    ///\e
+
+    ///\return
+    ///- \ref INF or -\ref INF means either infeasibility or unboundedness
+    /// of the primal problem, depending on whether we minimize or maximize.
+    ///- \ref NAN if no primal solution is found.
+    ///- The (finite) objective value if an optimal solution is found.
+    Value primalValue() { return _getPrimalValue();}
     ///@}
     
   };