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/* -*- mode: C++; indent-tabs-mode: nil; -*-
*
* This file is a part of LEMON, a generic C++ optimization library.
*
* Copyright (C) 2003-2013
* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
* (Egervary Research Group on Combinatorial Optimization, EGRES).
*
* Permission to use, modify and distribute this software is granted
* provided that this copyright notice appears in all copies. For
* precise terms see the accompanying LICENSE file.
*
* This software is provided "AS IS" with no warranty of any kind,
* express or implied, and with no claim as to its suitability for any
* purpose.
*
*/
#ifndef LEMON_SOPLEX_H
#define LEMON_SOPLEX_H
///\file
///\brief Header of the LEMON-SOPLEX lp solver interface.
#include <vector>
#include <string>
#include <lemon/lp_base.h>
// Forward declaration
namespace soplex {
class SoPlex;
}
namespace lemon {
/// \ingroup lp_group
///
/// \brief Interface for the SOPLEX solver
///
/// This class implements an interface for the SoPlex LP solver.
/// The SoPlex library is an object oriented lp solver library
/// developed at the Konrad-Zuse-Zentrum für Informationstechnik
/// Berlin (ZIB). You can find detailed information about it at the
/// <tt>http://soplex.zib.de</tt> address.
class SoplexLp : public LpSolver {
private:
soplex::SoPlex* soplex;
std::vector<std::string> _col_names;
std::map<std::string, int> _col_names_ref;
std::vector<std::string> _row_names;
std::map<std::string, int> _row_names_ref;
private:
// these values cannot be retrieved element by element
mutable std::vector<Value> _primal_values;
mutable std::vector<Value> _dual_values;
mutable std::vector<Value> _primal_ray;
mutable std::vector<Value> _dual_ray;
void _clear_temporals();
public:
/// \e
SoplexLp();
/// \e
SoplexLp(const SoplexLp&);
/// \e
~SoplexLp();
/// \e
virtual SoplexLp* newSolver() const;
/// \e
virtual SoplexLp* cloneSolver() const;
protected:
virtual const char* _solverName() const;
virtual int _addCol();
virtual int _addRow();
virtual int _addRow(Value l, ExprIterator b, ExprIterator e, Value u);
virtual void _eraseCol(int i);
virtual void _eraseRow(int i);
virtual void _eraseColId(int i);
virtual void _eraseRowId(int i);
virtual void _getColName(int col, std::string& name) const;
virtual void _setColName(int col, const std::string& name);
virtual int _colByName(const std::string& name) const;
virtual void _getRowName(int row, std::string& name) const;
virtual void _setRowName(int row, const std::string& name);
virtual int _rowByName(const std::string& name) const;
virtual void _setRowCoeffs(int i, ExprIterator b, ExprIterator e);
virtual void _getRowCoeffs(int i, InsertIterator b) const;
virtual void _setColCoeffs(int i, ExprIterator b, ExprIterator e);
virtual void _getColCoeffs(int i, InsertIterator b) const;
virtual void _setCoeff(int row, int col, Value value);
virtual Value _getCoeff(int row, int col) const;
virtual void _setColLowerBound(int i, Value value);
virtual Value _getColLowerBound(int i) const;
virtual void _setColUpperBound(int i, Value value);
virtual Value _getColUpperBound(int i) const;
virtual void _setRowLowerBound(int i, Value value);
virtual Value _getRowLowerBound(int i) const;
virtual void _setRowUpperBound(int i, Value value);
virtual Value _getRowUpperBound(int i) const;
virtual void _setObjCoeffs(ExprIterator b, ExprIterator e);
virtual void _getObjCoeffs(InsertIterator b) const;
virtual void _setObjCoeff(int i, Value obj_coef);
virtual Value _getObjCoeff(int i) const;
virtual void _setSense(Sense sense);
virtual Sense _getSense() const;
virtual SolveExitStatus _solve();
virtual Value _getPrimal(int i) const;
virtual Value _getDual(int i) const;
virtual Value _getPrimalValue() const;
virtual Value _getPrimalRay(int i) const;
virtual Value _getDualRay(int i) const;
virtual VarStatus _getColStatus(int i) const;
virtual VarStatus _getRowStatus(int i) const;
virtual ProblemType _getPrimalType() const;
virtual ProblemType _getDualType() const;
virtual void _clear();
void _messageLevel(MessageLevel m);
void _applyMessageLevel();
int _message_level;
};
} //END OF NAMESPACE LEMON
#endif //LEMON_SOPLEX_H
|
