1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/lemon/soplex.h Mon Jan 12 12:26:01 2009 +0000
1.3 @@ -0,0 +1,151 @@
1.4 +/* -*- mode: C++; indent-tabs-mode: nil; -*-
1.5 + *
1.6 + * This file is a part of LEMON, a generic C++ optimization library.
1.7 + *
1.8 + * Copyright (C) 2003-2008
1.9 + * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
1.10 + * (Egervary Research Group on Combinatorial Optimization, EGRES).
1.11 + *
1.12 + * Permission to use, modify and distribute this software is granted
1.13 + * provided that this copyright notice appears in all copies. For
1.14 + * precise terms see the accompanying LICENSE file.
1.15 + *
1.16 + * This software is provided "AS IS" with no warranty of any kind,
1.17 + * express or implied, and with no claim as to its suitability for any
1.18 + * purpose.
1.19 + *
1.20 + */
1.21 +
1.22 +#ifndef LEMON_SOPLEX_H
1.23 +#define LEMON_SOPLEX_H
1.24 +
1.25 +///\file
1.26 +///\brief Header of the LEMON-SOPLEX lp solver interface.
1.27 +
1.28 +#include <vector>
1.29 +#include <string>
1.30 +
1.31 +#include <lemon/lp_base.h>
1.32 +
1.33 +// Forward declaration
1.34 +namespace soplex {
1.35 + class SoPlex;
1.36 +}
1.37 +
1.38 +namespace lemon {
1.39 +
1.40 + /// \ingroup lp_group
1.41 + ///
1.42 + /// \brief Interface for the SOPLEX solver
1.43 + ///
1.44 + /// This class implements an interface for the SoPlex LP solver.
1.45 + /// The SoPlex library is an object oriented lp solver library
1.46 + /// developed at the Konrad-Zuse-Zentrum für Informationstechnik
1.47 + /// Berlin (ZIB). You can find detailed information about it at the
1.48 + /// <tt>http://soplex.zib.de</tt> address.
1.49 + class LpSoplex : public LpSolver {
1.50 + private:
1.51 +
1.52 + soplex::SoPlex* soplex;
1.53 +
1.54 + std::vector<std::string> _col_names;
1.55 + std::map<std::string, int> _col_names_ref;
1.56 +
1.57 + std::vector<std::string> _row_names;
1.58 + std::map<std::string, int> _row_names_ref;
1.59 +
1.60 + private:
1.61 +
1.62 + // these values cannot be retrieved element by element
1.63 + mutable std::vector<Value> _primal_values;
1.64 + mutable std::vector<Value> _dual_values;
1.65 +
1.66 + mutable std::vector<Value> _primal_ray;
1.67 + mutable std::vector<Value> _dual_ray;
1.68 +
1.69 + void _clear_temporals();
1.70 +
1.71 + public:
1.72 +
1.73 + /// \e
1.74 + LpSoplex();
1.75 + /// \e
1.76 + LpSoplex(const LpSoplex&);
1.77 + /// \e
1.78 + ~LpSoplex();
1.79 +
1.80 + protected:
1.81 +
1.82 + virtual LpSoplex* _newSolver() const;
1.83 + virtual LpSoplex* _cloneSolver() const;
1.84 +
1.85 + virtual const char* _solverName() const;
1.86 +
1.87 + virtual int _addCol();
1.88 + virtual int _addRow();
1.89 +
1.90 + virtual void _eraseCol(int i);
1.91 + virtual void _eraseRow(int i);
1.92 +
1.93 + virtual void _eraseColId(int i);
1.94 + virtual void _eraseRowId(int i);
1.95 +
1.96 + virtual void _getColName(int col, std::string& name) const;
1.97 + virtual void _setColName(int col, const std::string& name);
1.98 + virtual int _colByName(const std::string& name) const;
1.99 +
1.100 + virtual void _getRowName(int row, std::string& name) const;
1.101 + virtual void _setRowName(int row, const std::string& name);
1.102 + virtual int _rowByName(const std::string& name) const;
1.103 +
1.104 + virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
1.105 + virtual void _getRowCoeffs(int i, InsertIterator b) const;
1.106 +
1.107 + virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
1.108 + virtual void _getColCoeffs(int i, InsertIterator b) const;
1.109 +
1.110 + virtual void _setCoeff(int row, int col, Value value);
1.111 + virtual Value _getCoeff(int row, int col) const;
1.112 +
1.113 + virtual void _setColLowerBound(int i, Value value);
1.114 + virtual Value _getColLowerBound(int i) const;
1.115 + virtual void _setColUpperBound(int i, Value value);
1.116 + virtual Value _getColUpperBound(int i) const;
1.117 +
1.118 + virtual void _setRowLowerBound(int i, Value value);
1.119 + virtual Value _getRowLowerBound(int i) const;
1.120 + virtual void _setRowUpperBound(int i, Value value);
1.121 + virtual Value _getRowUpperBound(int i) const;
1.122 +
1.123 + virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
1.124 + virtual void _getObjCoeffs(InsertIterator b) const;
1.125 +
1.126 + virtual void _setObjCoeff(int i, Value obj_coef);
1.127 + virtual Value _getObjCoeff(int i) const;
1.128 +
1.129 + virtual void _setSense(Sense sense);
1.130 + virtual Sense _getSense() const;
1.131 +
1.132 + virtual SolveExitStatus _solve();
1.133 + virtual Value _getPrimal(int i) const;
1.134 + virtual Value _getDual(int i) const;
1.135 +
1.136 + virtual Value _getPrimalValue() const;
1.137 +
1.138 + virtual Value _getPrimalRay(int i) const;
1.139 + virtual Value _getDualRay(int i) const;
1.140 +
1.141 + virtual VarStatus _getColStatus(int i) const;
1.142 + virtual VarStatus _getRowStatus(int i) const;
1.143 +
1.144 + virtual ProblemType _getPrimalType() const;
1.145 + virtual ProblemType _getDualType() const;
1.146 +
1.147 + virtual void _clear();
1.148 +
1.149 + };
1.150 +
1.151 +} //END OF NAMESPACE LEMON
1.152 +
1.153 +#endif //LEMON_SOPLEX_H
1.154 +