| [1261] | 1 | /* -*- C++ -*- |
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| 2 | * src/lemon/lp_glpk.h - Part of LEMON, a generic C++ optimization library |
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| 3 | * |
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| 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 5 | * (Egervary Combinatorial Optimization Research Group, EGRES). |
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| 6 | * |
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| 7 | * Permission to use, modify and distribute this software is granted |
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| 8 | * provided that this copyright notice appears in all copies. For |
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| 9 | * precise terms see the accompanying LICENSE file. |
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| 10 | * |
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| 11 | * This software is provided "AS IS" with no warranty of any kind, |
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| 12 | * express or implied, and with no claim as to its suitability for any |
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| 13 | * purpose. |
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| 14 | * |
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| 15 | */ |
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| 16 | |
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| 17 | #ifndef LEMON_LP_GLPK_H |
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| 18 | #define LEMON_LP_GLPK_H |
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| 19 | |
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| 20 | ///\file |
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| 21 | ///\brief Header of the LEMON-GLPK lp solver interface. |
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| 22 | |
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| 23 | #include "lp_base.h" |
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| 24 | extern "C" { |
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| 25 | #include "glpk.h" |
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| 26 | } |
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| 27 | |
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| 28 | namespace lemon { |
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| 29 | |
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| 30 | |
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| 31 | /// \brief Wrapper for GLPK solver |
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| 32 | /// |
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| 33 | /// This class implements a lemon wrapper for GLPK. |
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| 34 | class LpGlpk : public LpSolverBase { |
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| 35 | |
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| 36 | public: |
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| 37 | |
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| 38 | typedef LpSolverBase Parent; |
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| 39 | |
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| 40 | /// \e |
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| 41 | LPX* lp; |
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| 42 | |
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| 43 | /// \e |
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| 44 | LpGlpk() : Parent(), |
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| 45 | lp(lpx_create_prob()) { |
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| 46 | lpx_set_int_parm(lp, LPX_K_DUAL, 1); |
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| 47 | } |
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| 48 | /// \e |
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| 49 | ~LpGlpk() { |
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| 50 | lpx_delete_prob(lp); |
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| 51 | } |
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| 52 | |
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| 53 | protected: |
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| 54 | virtual int _addCol(); |
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| 55 | virtual int _addRow(); |
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| 56 | virtual void _setRowCoeffs(int i, |
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| 57 | int length, |
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| [1263] | 58 | const int * indices, |
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| 59 | const Value * values ); |
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| [1261] | 60 | virtual void _setColCoeffs(int i, |
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| 61 | int length, |
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| [1263] | 62 | const int * indices, |
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| 63 | const Value * values); |
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| [1261] | 64 | virtual void _setColLowerBound(int i, Value value); |
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| 65 | virtual void _setColUpperBound(int i, Value value); |
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| 66 | virtual void _setRowLowerBound(int i, Value value); |
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| 67 | virtual void _setRowUpperBound(int i, Value value); |
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| 68 | virtual void _setObjCoeff(int i, Value obj_coef); |
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| [1263] | 69 | ///\e |
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| 70 | |
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| 71 | ///\bug Unimplemented |
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| 72 | /// |
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| 73 | virtual SolutionType _solve(); |
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| 74 | ///\e |
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| 75 | |
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| 76 | ///\bug Unimplemented |
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| 77 | /// |
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| 78 | virtual Value _getSolution(int i); |
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| [1261] | 79 | |
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| 80 | }; |
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| 81 | } //END OF NAMESPACE LEMON |
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| 82 | |
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| 83 | #endif //LEMON_LP_GLPK_H |
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| 84 | |
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