Clp  1.17.5
AbcDualRowDantzig.hpp
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1 /* $Id: AbcDualRowDantzig.hpp 2385 2019-01-06 19:43:06Z unxusr $ */
2 // Copyright (C) 2002, International Business Machines
3 // Corporation and others, Copyright (C) 2012, FasterCoin. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5 
6 #ifndef AbcDualRowDantzig_H
7 #define AbcDualRowDantzig_H
8 
9 #include "AbcDualRowPivot.hpp"
10 
11 //#############################################################################
12 
19 class AbcDualRowDantzig : public AbcDualRowPivot {
20 
21 public:
23 
24 
26  virtual int pivotRow();
27 
30  virtual double updateWeights(CoinIndexedVector &input, CoinIndexedVector &updatedColumn);
31  virtual double updateWeights1(CoinIndexedVector &input, CoinIndexedVector &updateColumn);
32  virtual void updateWeightsOnly(CoinIndexedVector & /*input*/) {};
34  virtual void updateWeights2(CoinIndexedVector &input, CoinIndexedVector & /*updateColumn*/) { input.clear(); };
39  virtual void updatePrimalSolution(CoinIndexedVector &input,
40  double theta);
51  virtual void saveWeights(AbcSimplex *model, int mode);
53  virtual void recomputeInfeasibilities();
55 
57 
58  AbcDualRowDantzig();
60 
62  AbcDualRowDantzig(const AbcDualRowDantzig &);
63 
65  AbcDualRowDantzig &operator=(const AbcDualRowDantzig &rhs);
66 
68  virtual ~AbcDualRowDantzig();
69 
71  virtual AbcDualRowPivot *clone(bool copyData = true) const;
72 
74 
75  //---------------------------------------------------------------------------
76 
77 private:
80  CoinIndexedVector *infeasible_;
82 };
83 
84 #endif
85 
86 /* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
87 */