alpar@484: /* -*- mode: C++; indent-tabs-mode: nil; -*-
alpar@484:  *
alpar@484:  * This file is a part of LEMON, a generic C++ optimization library.
alpar@484:  *
alpar@1081:  * Copyright (C) 2003-2011
alpar@484:  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
alpar@484:  * (Egervary Research Group on Combinatorial Optimization, EGRES).
alpar@484:  *
alpar@484:  * Permission to use, modify and distribute this software is granted
alpar@484:  * provided that this copyright notice appears in all copies. For
alpar@484:  * precise terms see the accompanying LICENSE file.
alpar@484:  *
alpar@484:  * This software is provided "AS IS" with no warranty of any kind,
alpar@484:  * express or implied, and with no claim as to its suitability for any
alpar@484:  * purpose.
alpar@484:  *
alpar@484:  */
alpar@484: 
alpar@484: #ifndef LEMON_CLP_H
alpar@484: #define LEMON_CLP_H
alpar@484: 
alpar@484: ///\file
alpar@484: ///\brief Header of the LEMON-CLP lp solver interface.
alpar@484: 
alpar@484: #include <vector>
alpar@484: #include <string>
alpar@484: 
alpar@484: #include <lemon/lp_base.h>
alpar@484: 
alpar@484: class ClpSimplex;
alpar@484: 
alpar@484: namespace lemon {
alpar@484: 
alpar@484:   /// \ingroup lp_group
alpar@484:   ///
alpar@484:   /// \brief Interface for the CLP solver
alpar@484:   ///
alpar@484:   /// This class implements an interface for the Clp LP solver.  The
alpar@484:   /// Clp library is an object oriented lp solver library developed at
alpar@484:   /// the IBM. The CLP is part of the COIN-OR package and it can be
alpar@484:   /// used with Common Public License.
alpar@485:   class ClpLp : public LpSolver {
alpar@484:   protected:
alpar@484: 
alpar@484:     ClpSimplex* _prob;
alpar@484: 
alpar@484:     std::map<std::string, int> _col_names_ref;
alpar@484:     std::map<std::string, int> _row_names_ref;
alpar@484: 
alpar@484:   public:
alpar@484: 
alpar@484:     /// \e
alpar@485:     ClpLp();
alpar@484:     /// \e
alpar@485:     ClpLp(const ClpLp&);
alpar@484:     /// \e
alpar@485:     ~ClpLp();
alpar@484: 
alpar@587:     /// \e
alpar@587:     virtual ClpLp* newSolver() const;
alpar@587:     /// \e
alpar@587:     virtual ClpLp* cloneSolver() const;
alpar@587: 
alpar@484:   protected:
alpar@484: 
alpar@484:     mutable double* _primal_ray;
alpar@484:     mutable double* _dual_ray;
alpar@484: 
alpar@484:     void _init_temporals();
alpar@484:     void _clear_temporals();
alpar@484: 
alpar@484:   protected:
alpar@484: 
alpar@484:     virtual const char* _solverName() const;
alpar@484: 
alpar@484:     virtual int _addCol();
alpar@484:     virtual int _addRow();
alpar@484: 
alpar@484:     virtual void _eraseCol(int i);
alpar@484:     virtual void _eraseRow(int i);
alpar@484: 
alpar@484:     virtual void _eraseColId(int i);
alpar@484:     virtual void _eraseRowId(int i);
alpar@484: 
alpar@484:     virtual void _getColName(int col, std::string& name) const;
alpar@484:     virtual void _setColName(int col, const std::string& name);
alpar@484:     virtual int _colByName(const std::string& name) const;
alpar@484: 
alpar@484:     virtual void _getRowName(int row, std::string& name) const;
alpar@484:     virtual void _setRowName(int row, const std::string& name);
alpar@484:     virtual int _rowByName(const std::string& name) const;
alpar@484: 
alpar@484:     virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
alpar@484:     virtual void _getRowCoeffs(int i, InsertIterator b) const;
alpar@484: 
alpar@484:     virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
alpar@484:     virtual void _getColCoeffs(int i, InsertIterator b) const;
alpar@484: 
alpar@484:     virtual void _setCoeff(int row, int col, Value value);
alpar@484:     virtual Value _getCoeff(int row, int col) const;
alpar@484: 
alpar@484:     virtual void _setColLowerBound(int i, Value value);
alpar@484:     virtual Value _getColLowerBound(int i) const;
alpar@484:     virtual void _setColUpperBound(int i, Value value);
alpar@484:     virtual Value _getColUpperBound(int i) const;
alpar@484: 
alpar@484:     virtual void _setRowLowerBound(int i, Value value);
alpar@484:     virtual Value _getRowLowerBound(int i) const;
alpar@484:     virtual void _setRowUpperBound(int i, Value value);
alpar@484:     virtual Value _getRowUpperBound(int i) const;
alpar@484: 
alpar@484:     virtual void _setObjCoeffs(ExprIterator, ExprIterator);
alpar@484:     virtual void _getObjCoeffs(InsertIterator) const;
alpar@484: 
alpar@484:     virtual void _setObjCoeff(int i, Value obj_coef);
alpar@484:     virtual Value _getObjCoeff(int i) const;
alpar@484: 
alpar@484:     virtual void _setSense(Sense sense);
alpar@484:     virtual Sense _getSense() const;
alpar@484: 
alpar@484:     virtual SolveExitStatus _solve();
alpar@484: 
alpar@484:     virtual Value _getPrimal(int i) const;
alpar@484:     virtual Value _getDual(int i) const;
alpar@484: 
alpar@484:     virtual Value _getPrimalValue() const;
alpar@484: 
alpar@484:     virtual Value _getPrimalRay(int i) const;
alpar@484:     virtual Value _getDualRay(int i) const;
alpar@484: 
alpar@484:     virtual VarStatus _getColStatus(int i) const;
alpar@484:     virtual VarStatus _getRowStatus(int i) const;
alpar@484: 
alpar@484:     virtual ProblemType _getPrimalType() const;
alpar@484:     virtual ProblemType _getDualType() const;
alpar@484: 
alpar@484:     virtual void _clear();
alpar@484: 
deba@623:     virtual void _messageLevel(MessageLevel);
alpar@1081: 
alpar@484:   public:
alpar@484: 
alpar@484:     ///Solves LP with primal simplex method.
alpar@484:     SolveExitStatus solvePrimal();
alpar@484: 
alpar@484:     ///Solves LP with dual simplex method.
alpar@484:     SolveExitStatus solveDual();
alpar@484: 
alpar@484:     ///Solves LP with barrier method.
alpar@484:     SolveExitStatus solveBarrier();
alpar@484: 
alpar@484:     ///Returns the constraint identifier understood by CLP.
alpar@484:     int clpRow(Row r) const { return rows(id(r)); }
alpar@484: 
alpar@484:     ///Returns the variable identifier understood by CLP.
alpar@484:     int clpCol(Col c) const { return cols(id(c)); }
alpar@484: 
alpar@484:   };
alpar@484: 
alpar@484: } //END OF NAMESPACE LEMON
alpar@484: 
alpar@484: #endif //LEMON_CLP_H
alpar@484: