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# CoinPresolveTripleton.hpp

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    00001 /* $Id: CoinPresolveTripleton.hpp 1372 2011-01-03 23:31:00Z lou $ */
    00002 // Copyright (C) 2003, International Business Machines
    00003 // Corporation and others.  All Rights Reserved.
    00004 // This code is licensed under the terms of the Eclipse Public License (EPL).
    00005
    00006 #ifndef CoinPresolveTripleton_H
    00007 #define CoinPresolveTripleton_H
    00008 #define TRIPLETON 11
    00009
    00015 class tripleton_action : public CoinPresolveAction {
    00016  public:
    00017   struct action {
    00018     int icolx;
    00019     int icolz;
    00020     int row;
    00021
    00022     int icoly;
    00023     double cloy;
    00024     double cupy;
    00025     double costy;
    00026     double clox;
    00027     double cupx;
    00028     double costx;
    00029
    00030     double rlo;
    00031     double rup;
    00032
    00033     double coeffx;
    00034     double coeffy;
    00035     double coeffz;
    00036
    00037     double *colel;
    00038
    00039     int ncolx;
    00040     int ncoly;
    00041   };
    00042
    00043   const int nactions_;
    00044   const action *const actions_;
    00045
    00046  private:
    00047   tripleton_action(int nactions,
    00048                       const action *actions,
    00049                       const CoinPresolveAction *next) :
    00050     CoinPresolveAction(next),
    00051     nactions_(nactions), actions_(actions)
    00052 {}
    00053
    00054  public:
    00055   const char *name() const { return ("tripleton_action"); }
    00056
    00057   static const CoinPresolveAction *presolve(CoinPresolveMatrix *,
    00058                                          const CoinPresolveAction *next);
    00059
    00060   void postsolve(CoinPostsolveMatrix *prob) const;
    00061
    00062   ~tripleton_action();
    00063 };
    00064 #endif
    00065
    00066