[458] | 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 | */ |
---|
| 18 | |
---|
| 19 | #ifndef LEMON_LP_SOPLEX_H |
---|
| 20 | #define LEMON_LP_SOPLEX_H |
---|
| 21 | |
---|
| 22 | ///\file |
---|
| 23 | ///\brief Header of the LEMON-SOPLEX lp solver interface. |
---|
| 24 | |
---|
| 25 | #include <vector> |
---|
| 26 | #include <string> |
---|
| 27 | |
---|
| 28 | #include <lemon/lp_base.h> |
---|
| 29 | |
---|
| 30 | // Forward declaration |
---|
| 31 | namespace soplex { |
---|
| 32 | class SoPlex; |
---|
| 33 | } |
---|
| 34 | |
---|
| 35 | namespace lemon { |
---|
| 36 | |
---|
| 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 LpSoplex :virtual public LpSolverBase { |
---|
| 47 | protected: |
---|
| 48 | |
---|
| 49 | _lp_bits::RelocateIdHandler relocateIdHandler; |
---|
| 50 | |
---|
| 51 | soplex::SoPlex* soplex; |
---|
| 52 | bool solved; |
---|
| 53 | |
---|
| 54 | std::vector<std::string> colNames; |
---|
| 55 | std::map<std::string, int> invColNames; |
---|
| 56 | |
---|
| 57 | std::vector<Value> primal_value; |
---|
| 58 | std::vector<Value> dual_value; |
---|
| 59 | |
---|
| 60 | |
---|
| 61 | public: |
---|
| 62 | |
---|
| 63 | typedef LpSolverBase Parent; |
---|
| 64 | |
---|
| 65 | |
---|
| 66 | /// \e |
---|
| 67 | LpSoplex(); |
---|
| 68 | /// \e |
---|
| 69 | LpSoplex(const LpSoplex&); |
---|
| 70 | /// \e |
---|
| 71 | ~LpSoplex(); |
---|
| 72 | |
---|
| 73 | protected: |
---|
| 74 | |
---|
| 75 | virtual LpSolverBase* _newLp(); |
---|
| 76 | virtual LpSolverBase* _copyLp(); |
---|
| 77 | |
---|
| 78 | virtual int _addCol(); |
---|
| 79 | virtual int _addRow(); |
---|
| 80 | virtual void _eraseCol(int i); |
---|
| 81 | virtual void _eraseRow(int i); |
---|
| 82 | virtual void _getColName(int col, std::string & name) const; |
---|
| 83 | virtual void _setColName(int col, const std::string & name); |
---|
| 84 | virtual int _colByName(const std::string& name) const; |
---|
| 85 | virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e); |
---|
| 86 | virtual void _getRowCoeffs(int i, RowIterator b) const; |
---|
| 87 | virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e); |
---|
| 88 | virtual void _getColCoeffs(int i, ColIterator b) const; |
---|
| 89 | virtual void _setCoeff(int row, int col, Value value); |
---|
| 90 | virtual Value _getCoeff(int row, int col) const; |
---|
| 91 | virtual void _setColLowerBound(int i, Value value); |
---|
| 92 | virtual Value _getColLowerBound(int i) const; |
---|
| 93 | virtual void _setColUpperBound(int i, Value value); |
---|
| 94 | virtual Value _getColUpperBound(int i) const; |
---|
| 95 | virtual void _setRowBounds(int i, Value lower, Value upper); |
---|
| 96 | virtual void _getRowBounds(int i, Value &lower, Value &upper) const; |
---|
| 97 | virtual void _setObjCoeff(int i, Value obj_coef); |
---|
| 98 | virtual Value _getObjCoeff(int i) const; |
---|
| 99 | virtual void _clearObj(); |
---|
| 100 | |
---|
| 101 | virtual SolveExitStatus _solve(); |
---|
| 102 | virtual Value _getPrimal(int i) const; |
---|
| 103 | virtual Value _getDual(int i) const; |
---|
| 104 | virtual Value _getPrimalValue() const; |
---|
| 105 | virtual bool _isBasicCol(int i) const; |
---|
| 106 | |
---|
| 107 | virtual SolutionStatus _getPrimalStatus() const; |
---|
| 108 | virtual SolutionStatus _getDualStatus() const; |
---|
| 109 | virtual ProblemTypes _getProblemType() const; |
---|
| 110 | |
---|
| 111 | |
---|
| 112 | virtual void _setMax(); |
---|
| 113 | virtual void _setMin(); |
---|
| 114 | virtual bool _isMax() const; |
---|
| 115 | |
---|
| 116 | }; |
---|
| 117 | } //END OF NAMESPACE LEMON |
---|
| 118 | |
---|
| 119 | #endif //LEMON_LP_SOPLEX_H |
---|
| 120 | |
---|