CoinPresolveDupcol.hpp

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/* $Id: CoinPresolveDupcol.hpp 1854 2015-12-18 14:18:54Z forrest $ */
// Copyright (C) 2002, International Business Machines
// Corporation and others.  All Rights Reserved.
// This code is licensed under the terms of the Eclipse Public License (EPL).

#ifndef CoinPresolveDupcol_H
#define CoinPresolveDupcol_H

#include "CoinPresolveMatrix.hpp"

#define DUPCOL  10

class dupcol_action : public CoinPresolveAction {
  dupcol_action();
  dupcol_action(const dupcol_action& rhs);
  dupcol_action& operator=(const dupcol_action& rhs);

  struct action {
    double thislo;
    double thisup;
    double lastlo;
    double lastup;
    int ithis;
    int ilast;

    double *colels;
    int nincol;
  };

  const int nactions_;
  // actions_ is owned by the class and must be deleted at destruction
  const action *const actions_;

  dupcol_action(int nactions, const action *actions,
                const CoinPresolveAction *next) :
      CoinPresolveAction(next),
      nactions_(nactions),
      actions_(actions) {}

 public:
  const char *name() const;

  static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
                                         const CoinPresolveAction *next);

  void postsolve(CoinPostsolveMatrix *prob) const;

  virtual ~dupcol_action();

};


class duprow_action : public CoinPresolveAction {
  struct action {
    int row;
    double lbound;
    double ubound;
  };

  const int nactions_;
  const action *const actions_;

  duprow_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
  duprow_action(int nactions,
                      const action *actions,
                      const CoinPresolveAction *next) :
    CoinPresolveAction(next),
    nactions_(nactions), actions_(actions) {}

 public:
  const char *name() const;

  static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
                                         const CoinPresolveAction *next);

  void postsolve(CoinPostsolveMatrix *prob) const;

  //~duprow_action() { delete[]actions_; }
};

class duprow3_action : public CoinPresolveAction {
  struct action {
    int row;
    double lbound;
    double ubound;
  };

  const int nactions_;
  const action *const actions_;

  duprow3_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
  duprow3_action(int nactions,
                      const action *actions,
                      const CoinPresolveAction *next) :
    CoinPresolveAction(next),
    nactions_(nactions), actions_(actions) {}

 public:
  const char *name() const;

  static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
                                         const CoinPresolveAction *next);

  void postsolve(CoinPostsolveMatrix *prob) const;

  //~duprow_action() { delete[]actions_; }
};

class gubrow_action : public CoinPresolveAction {
  struct action {
    double rhs;
    // last is row itself
    int * deletedRow;
    double * rowels;
    int * indices; // indices in gub row
    int nDrop;
    int ninrow;
  };

  const int nactions_;
  const action *const actions_;

  //gubrow_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
  gubrow_action(int nactions,
                      const action *actions,
                      const CoinPresolveAction *next) :
    CoinPresolveAction(next),
    nactions_(nactions), actions_(actions) {}

 public:
  const char *name() const;

  static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
                                         const CoinPresolveAction *next);

  void postsolve(CoinPostsolveMatrix *prob) const;

  virtual ~gubrow_action();
};

class twoxtwo_action : public CoinPresolveAction {
  struct action {
    double lbound_row;
    double ubound_row;
    double lbound_col;
    double ubound_col;
    double cost_col;
    double cost_othercol;
    int row;
    int col;
    int othercol;
  };

  const int nactions_;
  const action *const actions_;

  twoxtwo_action():CoinPresolveAction(NULL),nactions_(0),actions_(NULL) {}
  twoxtwo_action(int nactions,
                      const action *actions,
                      const CoinPresolveAction *next) :
    CoinPresolveAction(next),
    nactions_(nactions), actions_(actions) {}

 public:
  const char *name() const;

  static const CoinPresolveAction *presolve(CoinPresolveMatrix *prob,
                                         const CoinPresolveAction *next);

  void postsolve(CoinPostsolveMatrix *prob) const;

  ~twoxtwo_action() { delete [] actions_; }
};

#endif