NullIOHandler.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 NULL_IO_HANDLER_GUARD
#define NULL_IO_HANDLER_GUARD
 
#include "IOHandlerImpl.h"
 
class VarNames;
class Scanner;
class BigIdeal;
class BigPolynomial;
class SatBinomConsumer;
class InputConsumer;
 
namespace IO {
  class NullIOHandler : public IOHandlerImpl {
  public:
    NullIOHandler();
 
    static const char* staticGetName();
 
  private:
    virtual BigTermConsumer* doCreateIdealWriter(FILE* out);
    virtual CoefBigTermConsumer* doCreatePolynomialWriter(FILE* out);
 
    virtual void doWriteTerm(const vector<mpz_class>& term,
                             const VarNames& names,
                             FILE* out);
    virtual void doReadIdeal(Scanner& in, InputConsumer& consumer);
    virtual void doReadIdeals(Scanner& in, InputConsumer& consumer);
    virtual void doReadTerm(Scanner& in, InputConsumer& consumer);
    virtual void doReadPolynomial(Scanner& in, CoefBigTermConsumer& consumer);
    virtual void doReadSatBinomIdeal(Scanner& in, SatBinomConsumer& consumer);
    virtual bool doHasMoreInput(Scanner& in) const;
  };
}
 
#endif