BigattiBaseCase.h

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/* Frobby: Software for monomial ideal computations.
   Copyright (C) 2009 University of Aarhus
   Contact Bjarke Hammersholt Roune for license information (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 BIGATTI_BASE_CASE_GUARD
#define BIGATTI_BASE_CASE_GUARD
 
class BigattiState;
class TermTranslator;
 
#include "Term.h"
#include "Ideal.h"
#include "HashPolynomial.h"
#include "UniHashPolynomial.h"
#include <vector>
 
class BigattiBaseCase {
 public:
  BigattiBaseCase(const TermTranslator& translator);
 
  bool genericBaseCase(const BigattiState& state);
 
  bool baseCase(const BigattiState& state);
 
  void output(bool plus, const Term& term);
 
  void feedOutputTo(CoefBigTermConsumer& consumer, bool inCanonicalOrder);
 
  void setPrintDebug(bool value);
 
  void setComputeUnivariate(bool value);
 
  size_t getTotalBaseCasesEver() const;
 
  size_t getTotalTermsOutputEver() const;
 
  size_t getTotalTermsInOutput() const;
 
 private:
  bool simpleBaseCase(const BigattiState& state);
 
  bool univariateAllFaces(const BigattiState& state);
 
  void enumerateScarfComplex(const BigattiState& state, bool allFaces);
 
  vector<size_t> _maxCount;
  Term _lcm;
  mpz_class _tmp;
 
  HashPolynomial _outputMultivariate;
 
  UniHashPolynomial _outputUnivariate;
 
  struct State {
    Term term;
    Ideal::const_iterator pos;
    bool plus;
  };
 
  vector<State> _states;
 
  bool _computeUnivariate;
 
  const TermTranslator& _translator;
 
  size_t _totalBaseCasesEver;
 
  size_t _totalTermsOutputEver;
 
  bool _printDebug;
};
 
#endif