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# /home/coin/svn-release/Alps-1.4.6/Clp/src/AbcDualRowDantzig.hpp

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    00001 /* $Id: AbcDualRowDantzig.hpp 1910 2013-01-27 02:00:13Z stefan $ */
    00002 // Copyright (C) 2002, International Business Machines
    00003 // Corporation and others, Copyright (C) 2012, FasterCoin.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 #ifndef AbcDualRowDantzig_H
    00007 #define AbcDualRowDantzig_H
    00008
    00009 #include "AbcDualRowPivot.hpp"
    00010
    00011 //#############################################################################
    00012
    00019 class AbcDualRowDantzig : public AbcDualRowPivot {
    00020
    00021 public:
    00022
    00024
    00025
    00027   virtual int pivotRow();
    00028
    00031   virtual double updateWeights(CoinIndexedVector & input,CoinIndexedVector & updatedColumn);
    00032   virtual double updateWeights1(CoinIndexedVector & input,CoinIndexedVector & updateColumn);
    00033   virtual void updateWeightsOnly(CoinIndexedVector & /*input*/) {};
    00035   virtual void updateWeights2(CoinIndexedVector & input,CoinIndexedVector & /*updateColumn*/) {input.clear();};
    00040   virtual void updatePrimalSolution(CoinIndexedVector & input,
    00041                                     double theta);
    00052   virtual void saveWeights(AbcSimplex * model, int mode);
    00054   virtual void recomputeInfeasibilities();
    00056
    00057
    00059
    00060
    00061   AbcDualRowDantzig();
    00062
    00064   AbcDualRowDantzig(const AbcDualRowDantzig &);
    00065
    00067   AbcDualRowDantzig & operator=(const AbcDualRowDantzig& rhs);
    00068
    00070   virtual ~AbcDualRowDantzig ();
    00071
    00073   virtual AbcDualRowPivot * clone(bool copyData = true) const;
    00074
    00076
    00077   //---------------------------------------------------------------------------
    00078
    00079 private:
    00082   CoinIndexedVector * infeasible_;
    00084 };
    00085
    00086 #endif