CoinPresolveDoubleton.hpp

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/* $Id: CoinPresolveDoubleton.hpp 2083 2019-01-06 19:38:09Z unxusr $ */
// 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 CoinPresolveDoubleton_H
#define CoinPresolveDoubleton_H

#define DOUBLETON 5

class doubleton_action : public CoinPresolveAction {
public:
  struct action {

    double clox;
    double cupx;
    double costx;

    double costy;

    double rlo;

    double coeffx;
    double coeffy;

    double *colel;

    int icolx;
    int icoly;
    int row;
    int ncolx;
    int ncoly;
  };

  const int nactions_;
  const action *const actions_;

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

public:
  const char *name() const { return ("doubleton_action"); }

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

  void postsolve(CoinPostsolveMatrix *prob) const;

  virtual ~doubleton_action();
};
#endif

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