CanonicalCoefTermConsumer.h

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/* 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 CANONICAL_COEF_TERM_CONSUMER_GUARD
#define CANONICAL_COEF_TERM_CONSUMER_GUARD
 
#include "CoefTermConsumer.h"
#include "Polynomial.h"
#include "VarNames.h"
 
class Term;
 
// Passes consumed items on in a canonical order. This requires
// storing all items before any can be passed on.
class CanonicalCoefTermConsumer : public CoefTermConsumer {
 public:
  CanonicalCoefTermConsumer(auto_ptr<CoefTermConsumer> consumer);
 
  virtual void consumeRing(const VarNames& names);
 
  virtual void beginConsuming();
  virtual void consume(const mpz_class& coef, const Term& term);
  virtual void doneConsuming();
 
 private:
  auto_ptr<CoefTermConsumer> _consumer;
  Polynomial _polynomial;
  VarNames _names;
};
 
#endif