lemon: lemon/soplex.h@9db62975c32b

     1 /* -*- mode: C++; indent-tabs-mode: nil; -*-

     2  *

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

     4  *

     5  * Copyright (C) 2003-2008

     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_SOPLEX_H

    20 #define LEMON_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   /// \ingroup lp_group

    38   ///

    39   /// \brief Interface for the SOPLEX solver

    40   ///

    41   /// This class implements an interface for the SoPlex LP solver.

    42   /// The SoPlex library is an object oriented lp solver library

    43   /// developed at the Konrad-Zuse-Zentrum für Informationstechnik

    44   /// Berlin (ZIB). You can find detailed information about it at the

    45   /// <tt>http://soplex.zib.de</tt> address.

    46   class SoplexLp : public LpSolver {

    47   private:

    49     soplex::SoPlex* soplex;

    51     std::vector<std::string> _col_names;

    52     std::map<std::string, int> _col_names_ref;

    54     std::vector<std::string> _row_names;

    55     std::map<std::string, int> _row_names_ref;

    57   private:

    59     // these values cannot be retrieved element by element

    60     mutable std::vector<Value> _primal_values;

    61     mutable std::vector<Value> _dual_values;

    63     mutable std::vector<Value> _primal_ray;

    64     mutable std::vector<Value> _dual_ray;

    66     void _clear_temporals();

    68   public:

    70     /// \e

    71     SoplexLp();

    72     /// \e

    73     SoplexLp(const SoplexLp&);

    74     /// \e

    75     ~SoplexLp();

    76     /// \e

    77     virtual SoplexLp* newSolver() const;

    78     /// \e

    79     virtual SoplexLp* cloneSolver() const;

    81   protected:

    83     virtual const char* _solverName() const;

    85     virtual int _addCol();

    86     virtual int _addRow();

    88     virtual void _eraseCol(int i);

    89     virtual void _eraseRow(int i);

    91     virtual void _eraseColId(int i);

    92     virtual void _eraseRowId(int i);

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

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

    96     virtual int _colByName(const std::string& name) const;

    98     virtual void _getRowName(int row, std::string& name) const;

    99     virtual void _setRowName(int row, const std::string& name);

   100     virtual int _rowByName(const std::string& name) const;

   102     virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);

   103     virtual void _getRowCoeffs(int i, InsertIterator b) const;

   105     virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);

   106     virtual void _getColCoeffs(int i, InsertIterator b) const;

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

   109     virtual Value _getCoeff(int row, int col) const;

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

   112     virtual Value _getColLowerBound(int i) const;

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

   114     virtual Value _getColUpperBound(int i) const;

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

   117     virtual Value _getRowLowerBound(int i) const;

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

   119     virtual Value _getRowUpperBound(int i) const;

   121     virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);

   122     virtual void _getObjCoeffs(InsertIterator b) const;

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

   125     virtual Value _getObjCoeff(int i) const;

   127     virtual void _setSense(Sense sense);

   128     virtual Sense _getSense() const;

   130     virtual SolveExitStatus _solve();

   131     virtual Value _getPrimal(int i) const;

   132     virtual Value _getDual(int i) const;

   134     virtual Value _getPrimalValue() const;

   136     virtual Value _getPrimalRay(int i) const;

   137     virtual Value _getDualRay(int i) const;

   139     virtual VarStatus _getColStatus(int i) const;

   140     virtual VarStatus _getRowStatus(int i) const;

   142     virtual ProblemType _getPrimalType() const;

   143     virtual ProblemType _getDualType() const;

   145     virtual void _clear();

   147   };

   149 } //END OF NAMESPACE LEMON

   151 #endif //LEMON_SOPLEX_H

author	Alpar Juttner <alpar@cs.elte.hu>
	Thu, 26 Feb 2009 07:39:16 +0000
changeset 587	9db62975c32b
parent 485	9b082b3fb33f
child 623	745e182d0139
permissions	-rw-r--r--