| 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) 2003-2006 |
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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 | /// \brief Interface for the SOPLEX solver |
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| 38 | /// |
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| 39 | /// This class implements an interface for the SOPLEX LP solver. |
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| 40 | class LpSoplex :virtual public LpSolverBase { |
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| 41 | protected: |
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| 42 | |
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| 43 | _lp_bits::RelocateIdHandler relocateIdHandler; |
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| 44 | |
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| 45 | soplex::SoPlex* soplex; |
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| 46 | bool solved; |
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| 47 | |
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| 48 | std::vector<std::string> colNames; |
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| 49 | |
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| 50 | std::vector<Value> primal_value; |
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| 51 | std::vector<Value> dual_value; |
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| 52 | |
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| 53 | |
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| 54 | public: |
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| 55 | |
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| 56 | typedef LpSolverBase Parent; |
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| 57 | |
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| 58 | |
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| 59 | /// \e |
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| 60 | LpSoplex(); |
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| 61 | /// \e |
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| 62 | ~LpSoplex(); |
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| 63 | |
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| 64 | protected: |
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| 65 | |
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| 66 | virtual LpSolverBase &_newLp(); |
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| 67 | virtual LpSolverBase &_copyLp(); |
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| 68 | |
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| 69 | virtual int _addCol(); |
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| 70 | virtual int _addRow(); |
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| 71 | virtual void _eraseCol(int i); |
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| 72 | virtual void _eraseRow(int i); |
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| 73 | virtual void _getColName(int col, std::string & name); |
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| 74 | virtual void _setColName(int col, const std::string & name); |
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| 75 | virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e); |
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| 76 | virtual void _getRowCoeffs(int i, RowIterator b); |
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| 77 | virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e); |
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| 78 | virtual void _getColCoeffs(int i, ColIterator b); |
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| 79 | virtual void _setCoeff(int row, int col, Value value); |
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| 80 | virtual Value _getCoeff(int row, int col); |
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| 81 | virtual void _setColLowerBound(int i, Value value); |
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| 82 | virtual Value _getColLowerBound(int i); |
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| 83 | virtual void _setColUpperBound(int i, Value value); |
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| 84 | virtual Value _getColUpperBound(int i); |
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| 85 | virtual void _setRowBounds(int i, Value lower, Value upper); |
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| 86 | virtual void _getRowBounds(int i, Value &lower, Value &upper); |
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| 87 | virtual void _setObjCoeff(int i, Value obj_coef); |
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| 88 | virtual Value _getObjCoeff(int i); |
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| 89 | virtual void _clearObj(); |
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| 90 | |
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| 91 | virtual SolveExitStatus _solve(); |
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| 92 | virtual Value _getPrimal(int i); |
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| 93 | virtual Value _getDual(int i); |
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| 94 | virtual Value _getPrimalValue(); |
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| 95 | virtual bool _isBasicCol(int i); |
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| 96 | |
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| 97 | virtual SolutionStatus _getPrimalStatus(); |
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| 98 | virtual SolutionStatus _getDualStatus(); |
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| 99 | virtual ProblemTypes _getProblemType(); |
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| 100 | |
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| 101 | |
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| 102 | virtual void _setMax(); |
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| 103 | virtual void _setMin(); |
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| 104 | virtual bool _isMax(); |
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| 105 | |
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| 106 | }; |
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| 107 | } //END OF NAMESPACE LEMON |
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| 108 | |
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| 109 | #endif //LEMON_LP_SOPLEX_H |
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| 110 | |
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