1.1 --- a/src/lemon/lp_base.h	Wed Apr 06 17:19:54 2005 +0000
     1.2 +++ b/src/lemon/lp_base.h	Thu Apr 07 06:31:03 2005 +0000
     1.3 @@ -392,8 +392,11 @@
     1.4      virtual void _setObjCoeff(int i, Value obj_coef) = 0;
     1.5      virtual SolveExitStatus _solve() = 0;
     1.6      virtual Value _getPrimal(int i) = 0;
     1.7 -    virtual SolutionStatus _getPrimalType() = 0;
     1.8 -
     1.9 +    virtual Value _getPrimalValue() = 0;
    1.10 +    virtual SolutionStatus _getPrimalStatus() = 0;
    1.11 +    virtual void _setMax() = 0;
    1.12 +    virtual void _setMin() = 0;
    1.13 +    
    1.14  
    1.15      void clearObj() {}
    1.16    public:
    1.17 @@ -427,7 +430,7 @@
    1.18      ///\ref Col as its \c mapped_type
    1.19      ///like
    1.20      ///\code
    1.21 -    ///std::map<AnyType,LpSolverBase::Col>
    1.22 +    ///std::map<AnyStatus,LpSolverBase::Col>
    1.23      ///\endcode
    1.24      ///- an iterable lemon \ref concept::WriteMap "write map" like 
    1.25      ///\code
    1.26 @@ -606,6 +609,12 @@
    1.27  	objCoeff((*i).first,(*i).second);
    1.28      }
    1.29  
    1.30 +    ///Maximize
    1.31 +    void max() { _setMax(); }
    1.32 +    ///Minimize
    1.33 +    void min() { _setMin(); }
    1.34 +
    1.35 +    
    1.36      ///@}
    1.37  
    1.38  
    1.39 @@ -623,13 +632,21 @@
    1.40      ///@{
    1.41  
    1.42      ///\e
    1.43 -    SolutionStatus primalType() {
    1.44 -      return _getPrimalType();
    1.45 +    SolutionStatus primalStatus() {
    1.46 +      return _getPrimalStatus();
    1.47      }
    1.48  
    1.49      ///\e
    1.50      Value primal(Col c) { return _getPrimal(cols.floatingId(c.id)); }
    1.51  
    1.52 +    ///\e
    1.53 +
    1.54 +    ///\return
    1.55 +    ///- \ref INF or -\ref INF means either infeasibility or unboundedness
    1.56 +    /// of the primal problem, depending on whether we minimize or maximize.
    1.57 +    ///- \ref NAN if no primal solution is found.
    1.58 +    ///- The (finite) objective value if an optimal solution is found.
    1.59 +    Value primalValue() { return _getPrimalValue();}
    1.60      ///@}
    1.61      
    1.62    };