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_CPLEX_H |
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20 | #define LEMON_LP_CPLEX_H |
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21 | |
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22 | ///\file |
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23 | ///\brief Header of the LEMON-CPLEX lp solver interface. |
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24 | |
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25 | #include <lemon/lp_base.h> |
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26 | |
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27 | extern "C" { |
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28 | #include <ilcplex/cplex.h> |
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29 | } |
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30 | |
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31 | namespace lemon { |
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32 | |
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33 | |
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34 | /// \brief Interface for the CPLEX solver |
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35 | /// |
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36 | /// This class implements an interface for the CPLEX LP solver. |
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37 | class LpCplex :virtual public LpSolverBase { |
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38 | |
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39 | public: |
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40 | |
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41 | typedef LpSolverBase Parent; |
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42 | |
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43 | /// \e |
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44 | int status; |
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45 | CPXENVptr env; |
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46 | CPXLPptr lp; |
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47 | |
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48 | |
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49 | /// \e |
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50 | LpCplex(); |
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51 | /// \e |
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52 | LpCplex(const LpCplex&); |
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53 | /// \e |
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54 | ~LpCplex(); |
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55 | |
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56 | protected: |
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57 | virtual LpSolverBase* _newLp(); |
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58 | virtual LpSolverBase* _copyLp(); |
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59 | |
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60 | |
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61 | virtual int _addCol(); |
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62 | virtual int _addRow(); |
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63 | virtual void _eraseCol(int i); |
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64 | virtual void _eraseRow(int i); |
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65 | virtual void _getColName(int col, std::string & name) const; |
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66 | virtual void _setColName(int col, const std::string & name); |
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67 | virtual int _colByName(const std::string& name) const; |
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68 | virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e); |
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69 | virtual void _getRowCoeffs(int i, RowIterator b) const; |
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70 | virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e); |
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71 | virtual void _getColCoeffs(int i, ColIterator b) const; |
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72 | virtual void _setCoeff(int row, int col, Value value); |
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73 | virtual Value _getCoeff(int row, int col) const; |
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74 | |
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75 | virtual void _setColLowerBound(int i, Value value); |
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76 | virtual Value _getColLowerBound(int i) const; |
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77 | virtual void _setColUpperBound(int i, Value value); |
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78 | virtual Value _getColUpperBound(int i) const; |
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79 | |
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80 | // virtual void _setRowLowerBound(int i, Value value); |
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81 | // virtual void _setRowUpperBound(int i, Value value); |
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82 | virtual void _setRowBounds(int i, Value lower, Value upper); |
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83 | virtual void _getRowBounds(int i, Value &lb, Value &ub) const; |
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84 | virtual void _setObjCoeff(int i, Value obj_coef); |
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85 | virtual Value _getObjCoeff(int i) const; |
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86 | virtual void _clearObj(); |
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87 | |
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88 | |
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89 | virtual SolveExitStatus _solve(); |
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90 | virtual Value _getPrimal(int i) const; |
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91 | virtual Value _getDual(int i) const; |
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92 | virtual Value _getPrimalValue() const; |
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93 | virtual bool _isBasicCol(int i) const; |
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94 | |
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95 | virtual SolutionStatus _getPrimalStatus() const; |
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96 | virtual SolutionStatus _getDualStatus() const; |
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97 | virtual ProblemTypes _getProblemType() const; |
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98 | |
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99 | |
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100 | virtual void _setMax(); |
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101 | virtual void _setMin(); |
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102 | |
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103 | virtual bool _isMax() const; |
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104 | |
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105 | public: |
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106 | |
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107 | CPXENVptr cplexEnv() { return env; } |
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108 | CPXLPptr cplexLp() { return lp; } |
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109 | |
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110 | }; |
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111 | } //END OF NAMESPACE LEMON |
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112 | |
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113 | #endif //LEMON_LP_CPLEX_H |
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114 | |
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