1 | /* -*- C++ -*- |
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2 | * |
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3 | * This file is a part of LEMON, a generic C++ optimization library |
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4 | * |
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5 | * Copyright (C) 2003-2008 |
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6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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8 | * |
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9 | * Permission to use, modify and distribute this software is granted |
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10 | * provided that this copyright notice appears in all copies. For |
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11 | * precise terms see the accompanying LICENSE file. |
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12 | * |
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13 | * This software is provided "AS IS" with no warranty of any kind, |
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14 | * express or implied, and with no claim as to its suitability for any |
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15 | * purpose. |
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16 | * |
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17 | */ |
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18 | |
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19 | #ifndef LEMON_LP_SOPLEX_H |
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20 | #define LEMON_LP_SOPLEX_H |
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21 | |
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22 | ///\file |
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23 | ///\brief Header of the LEMON-SOPLEX lp solver interface. |
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24 | |
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25 | #include <vector> |
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26 | #include <string> |
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27 | |
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28 | #include <lemon/lp_base.h> |
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29 | |
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30 | // Forward declaration |
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31 | namespace soplex { |
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32 | class SoPlex; |
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33 | } |
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34 | |
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35 | namespace lemon { |
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36 | |
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37 | /// \ingroup lp_group |
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38 | /// |
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39 | /// \brief Interface for the SOPLEX solver |
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40 | /// |
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41 | /// This class implements an interface for the SoPlex LP solver. |
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42 | /// The SoPlex library is an object oriented lp solver library |
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43 | /// developed at the Konrad-Zuse-Zentrum für Informationstechnik |
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44 | /// Berlin (ZIB). You can find detailed information about it at the |
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45 | /// <tt>http://soplex.zib.de</tt> address. |
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46 | class LpSoplex :virtual public LpSolverBase { |
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47 | protected: |
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48 | |
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49 | _lp_bits::RelocateIdHandler relocateIdHandler; |
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50 | |
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51 | soplex::SoPlex* soplex; |
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52 | bool solved; |
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53 | |
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54 | std::vector<std::string> colNames; |
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55 | std::map<std::string, int> invColNames; |
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56 | |
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57 | std::vector<Value> primal_value; |
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58 | std::vector<Value> dual_value; |
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59 | |
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60 | |
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61 | public: |
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62 | |
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63 | typedef LpSolverBase Parent; |
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64 | |
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65 | |
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66 | /// \e |
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67 | LpSoplex(); |
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68 | /// \e |
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69 | ~LpSoplex(); |
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70 | |
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71 | protected: |
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72 | |
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73 | virtual LpSolverBase &_newLp(); |
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74 | virtual LpSolverBase &_copyLp(); |
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75 | |
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76 | virtual int _addCol(); |
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77 | virtual int _addRow(); |
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78 | virtual void _eraseCol(int i); |
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79 | virtual void _eraseRow(int i); |
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80 | virtual void _getColName(int col, std::string & name) const; |
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81 | virtual void _setColName(int col, const std::string & name); |
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82 | virtual int _colByName(const std::string& name) const; |
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83 | virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e); |
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84 | virtual void _getRowCoeffs(int i, RowIterator b) const; |
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85 | virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e); |
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86 | virtual void _getColCoeffs(int i, ColIterator b) const; |
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87 | virtual void _setCoeff(int row, int col, Value value); |
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88 | virtual Value _getCoeff(int row, int col) const; |
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89 | virtual void _setColLowerBound(int i, Value value); |
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90 | virtual Value _getColLowerBound(int i) const; |
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91 | virtual void _setColUpperBound(int i, Value value); |
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92 | virtual Value _getColUpperBound(int i) const; |
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93 | virtual void _setRowBounds(int i, Value lower, Value upper); |
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94 | virtual void _getRowBounds(int i, Value &lower, Value &upper) const; |
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95 | virtual void _setObjCoeff(int i, Value obj_coef); |
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96 | virtual Value _getObjCoeff(int i) const; |
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97 | virtual void _clearObj(); |
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98 | |
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99 | virtual SolveExitStatus _solve(); |
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100 | virtual Value _getPrimal(int i) const; |
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101 | virtual Value _getDual(int i) const; |
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102 | virtual Value _getPrimalValue() const; |
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103 | virtual bool _isBasicCol(int i) const; |
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104 | |
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105 | virtual SolutionStatus _getPrimalStatus() const; |
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106 | virtual SolutionStatus _getDualStatus() const; |
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107 | virtual ProblemTypes _getProblemType() const; |
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108 | |
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109 | |
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110 | virtual void _setMax(); |
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111 | virtual void _setMin(); |
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112 | virtual bool _isMax() const; |
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113 | |
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114 | }; |
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115 | } //END OF NAMESPACE LEMON |
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116 | |
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117 | #endif //LEMON_LP_SOPLEX_H |
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118 | |
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