lemon-0.x: lemon/lp_soplex.h@9dccb1abc721

     1 /* -*- C++ -*-

     2  *

     3  * This file is a part of LEMON, a generic C++ optimization library

     4  *

     5  * Copyright (C) 2003-2006

     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

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

     8  *

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

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

    11  * precise terms see the accompanying LICENSE file.

    12  *

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

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

    15  * purpose.

    16  *

    17  */

    19 #ifndef LEMON_LP_SOPLEX_H

    20 #define LEMON_LP_SOPLEX_H

    22 ///\file

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

    25 #include <vector>

    26 #include <string>

    28 #include <lemon/lp_base.h>

    30 // Forward declaration

    31 namespace soplex {

    32   class SoPlex;

    33 }

    35 namespace lemon {

    37   /// \brief Interface for the SOPLEX solver

    38   ///

    39   /// This class implements an interface for the SOPLEX LP solver.

    40   class LpSoplex :virtual public LpSolverBase {

    41   protected:

    43     soplex::SoPlex* soplex;

    45     std::vector<std::string> colNames;

    47     std::vector<Value> primal;

    48     std::vector<Value> dual;

    51   public:

    53     typedef LpSolverBase Parent;

    56     /// \e

    57     LpSoplex();

    58     /// \e

    59     ~LpSoplex();

    61   protected:

    63     virtual LpSolverBase &_newLp();

    64     virtual LpSolverBase &_copyLp();

    66     virtual int _addCol();

    67     virtual int _addRow();

    68     virtual void _eraseCol(int i);

    69     virtual void _eraseRow(int i);

    70     virtual void _getColName(int col,       std::string & name);

    71     virtual void _setColName(int col, const std::string & name);

    72     virtual void _setRowCoeffs(int i, LpRowIterator b, LpRowIterator e);

    73     virtual void _setColCoeffs(int i, LpColIterator b, LpColIterator e);

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

    75     virtual void _setColLowerBound(int i, Value value);

    76     virtual void _setColUpperBound(int i, Value value);

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

    78     virtual void _setObjCoeff(int i, Value obj_coef);

    79     virtual void _clearObj();

    81     virtual SolveExitStatus _solve();

    82     virtual Value _getPrimal(int i);

    83     virtual Value _getDual(int i);

    84     virtual Value _getPrimalValue();

    85     virtual bool _isBasicCol(int i);

    87     virtual SolutionStatus _getPrimalStatus();

    88     virtual SolutionStatus _getDualStatus();

    89     virtual ProblemTypes _getProblemType();

    92     virtual void _setMax();

    93     virtual void _setMin();

    95   };

    96 } //END OF NAMESPACE LEMON

    98 #endif //LEMON_LP_SOPLEX_H

author	deba
	Mon, 18 Dec 2006 10:12:07 +0000
changeset 2330	9dccb1abc721
child 2363	2aabce558574
permissions	-rw-r--r--