lemon/lp_cplex.h
author alpar
Tue, 20 Feb 2007 15:53:33 +0000
changeset 2375 e30a0fdad0d7
parent 2364 3a5e67bd42d2
child 2391 14a343be7a5a
permissions -rw-r--r--
A preflow based general network circulation algorithm and a simple demo
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/* -*- C++ -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library
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 *
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 * Copyright (C) 2003-2006
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#ifndef LEMON_LP_CPLEX_H
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#define LEMON_LP_CPLEX_H
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///\file
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///\brief Header of the LEMON-CPLEX lp solver interface.
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#include <lemon/lp_base.h>
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extern "C" {
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#include <ilcplex/cplex.h>
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}
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namespace lemon {
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  /// \brief Interface for the CPLEX solver
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  /// 
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  /// This class implements an interface for the CPLEX LP solver.
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  class LpCplex :virtual public LpSolverBase {
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  public:
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    typedef LpSolverBase Parent;
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    /// \e
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    int status;
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    CPXENVptr env;
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    CPXLPptr lp;
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    /// \e
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    LpCplex();
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    /// \e
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    ~LpCplex();
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  protected:
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    virtual LpSolverBase &_newLp();
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    virtual LpSolverBase &_copyLp();
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    virtual int _addCol();
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    virtual int _addRow();
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    virtual void _eraseCol(int i);
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    virtual void _eraseRow(int i);
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    virtual void _getColName(int col, std::string & name) const;
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    virtual void _setColName(int col, const std::string & name);
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    virtual int _colByName(const std::string& name) const;
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    virtual void _setRowCoeffs(int i, ConstRowIterator b, ConstRowIterator e);
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    virtual void _getRowCoeffs(int i, RowIterator b) const;
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    virtual void _setColCoeffs(int i, ConstColIterator b, ConstColIterator e);
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    virtual void _getColCoeffs(int i, ColIterator b) const;
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    virtual void _setCoeff(int row, int col, Value value);
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    virtual Value _getCoeff(int row, int col) const;
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    virtual void _setColLowerBound(int i, Value value);
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    virtual Value _getColLowerBound(int i) const;
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    virtual void _setColUpperBound(int i, Value value);
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    virtual Value _getColUpperBound(int i) const;
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//     virtual void _setRowLowerBound(int i, Value value);
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//     virtual void _setRowUpperBound(int i, Value value);
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    virtual void _setRowBounds(int i, Value lower, Value upper);
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    virtual void _getRowBounds(int i, Value &lb, Value &ub) const;
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    virtual void _setObjCoeff(int i, Value obj_coef);
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    virtual Value _getObjCoeff(int i) const;
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    virtual void _clearObj();
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    virtual SolveExitStatus _solve();
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    virtual Value _getPrimal(int i) const;
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    virtual Value _getDual(int i) const;
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    virtual Value _getPrimalValue() const;
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    virtual bool _isBasicCol(int i) const;
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    virtual SolutionStatus _getPrimalStatus() const;
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    virtual SolutionStatus _getDualStatus() const;
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    virtual ProblemTypes _getProblemType() const;
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    virtual void _setMax();
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    virtual void _setMin();
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    virtual bool _isMax() const;
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  };
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} //END OF NAMESPACE LEMON
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#endif //LEMON_LP_CPLEX_H
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