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/********************* */
/*! \file dio_solver.h
** \verbatim
** Original author: mdeters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010, 2011 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief Diophantine equation solver
**
** A Diophantine equation solver for the theory of arithmetic.
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__ARITH__DIO_SOLVER_H
#define __CVC4__THEORY__ARITH__DIO_SOLVER_H
#include "context/context.h"
#include "theory/arith/tableau.h"
#include "theory/arith/partial_model.h"
#include "theory/arith/arith_utilities.h"
#include "util/rational.h"
#include <vector>
#include <utility>
namespace CVC4 {
namespace theory {
namespace arith {
class DioSolver {
context::Context* d_context;
const Tableau& d_tableau;
ArithPartialModel& d_partialModel;
public:
/** Construct a Diophantine equation solver with the given context. */
DioSolver(context::Context* ctxt, const Tableau& tab, ArithPartialModel& pmod) :
d_context(ctxt),
d_tableau(tab),
d_partialModel(pmod) {
}
/**
* Solve the set of Diophantine equations in the tableau.
*
* @return true if the set of equations was solved; false if no
* solution
*/
bool solve();
/**
* Get the parameterized solution to this set of Diophantine
* equations. Must be preceded by a call to solve() that returned
* true. */
void getSolution();
};/* class DioSolver */
}/* CVC4::theory::arith namespace */
}/* CVC4::theory namespace */
}/* CVC4 namespace */
#endif /* __CVC4__THEORY__ARITH__DIO_SOLVER_H */
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