/* -*- C++ -*-

  * lemon/lp_cplex.h - Part of LEMON, a generic C++ optimization library

  *

  * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_LP_CPLEX_H

 #define LEMON_LP_CPLEX_H

 ///\file

 ///\brief Header of the LEMON-CPLEX lp solver interface.

 #include <lemon/lp_base.h>

 extern "C" {

 #include <ilcplex/cplex.h>

 }

 namespace lemon {

   /// \brief Interface for the CPLEX solver

   /// 

   /// This class implements an interface for the CPLEX LP solver.

   class LpCplex : public LpSolverBase {

   public:

     typedef LpSolverBase Parent;

     /// \e

     int status;

     CPXENVptr env;

     CPXLPptr lp;

     /// \e

     LpCplex();

     /// \e

     ~LpCplex();

   protected:

     virtual LpSolverBase &_newLp();

     virtual LpSolverBase &_copyLp();

     virtual int _addCol();

     virtual int _addRow();

     virtual void _eraseCol(int i);

     virtual void _eraseRow(int i);

     virtual void _setRowCoeffs(int i, 

 			       int length,

                                const int   * indices, 

                                const Value   * values );

     virtual void _setColCoeffs(int i, 

 			       int length,

                                const int   * indices, 

                                const Value   * values);

     virtual void _setCoeff(int row, int col, Value value);

     virtual void _setColLowerBound(int i, Value value);

     virtual void _setColUpperBound(int i, Value value);

 //     virtual void _setRowLowerBound(int i, Value value);

 //     virtual void _setRowUpperBound(int i, Value value);

     virtual void _setRowBounds(int i, Value lower, Value upper);

     virtual void _setObjCoeff(int i, Value obj_coef);

     virtual void _clearObj();

     ///\e

     virtual SolveExitStatus _solve();

     virtual Value _getPrimal(int i);

     virtual Value _getDual(int i);

     virtual Value _getPrimalValue();

     virtual SolutionStatus _getPrimalStatus();

     virtual SolutionStatus _getDualStatus();

     virtual ProblemTypes _getProblemType();

     virtual void _setMax();

     virtual void _setMin();

   };

 } //END OF NAMESPACE LEMON

 #endif //LEMON_LP_CPLEX_H