Minimizer.h

Go to the documentation of this file.

/* Frobby: Software for monomial ideal computations.
   Copyright (C) 2007 Bjarke Hammersholt Roune (www.broune.com)
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see http://www.gnu.org/licenses/.
*/
#ifndef IDEAL_MINIMIZER_GUARD
#define IDEAL_MINIMIZER_GUARD
 
#include <vector>
 
class Minimizer {
 private:
  typedef vector<Exponent*>::iterator iterator;
  typedef vector<Exponent*>::const_iterator const_iterator;
 
 public:
  Minimizer(size_t varCount):
    _varCount(varCount) {}
 
  iterator minimize(iterator begin, iterator end) const;
 
  pair<iterator, bool> colonReminimize(iterator begin, iterator end,
                                       const Exponent* colon);
  pair<iterator, bool> colonReminimize(iterator begin, iterator end,
                                       size_t var, Exponent exponent);
 
  bool dominatesAny(iterator begin, iterator end, const Exponent* term);
  bool dividesAny(iterator begin, iterator end, const Exponent* term);
 
  bool isMinimallyGenerated(const_iterator begin, const_iterator end);
 
 private:
  size_t _varCount;
};
 
#endif