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/******************************************************************************
* Top contributors (to current version):
* Gereon Kremer
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS
* in the top-level source directory and their institutional affiliations.
* All rights reserved. See the file COPYING in the top-level source
* directory for licensing information.
* ****************************************************************************
*
* Implements a container for CAD constraints.
*/
#include "cvc5_private.h"
#ifndef CVC5__THEORY__ARITH__NL__CAD__CONSTRAINTS_H
#define CVC5__THEORY__ARITH__NL__CAD__CONSTRAINTS_H
#ifdef CVC5_POLY_IMP
#include <poly/polyxx.h>
#include <tuple>
#include <vector>
#include "theory/arith/nl/poly_conversion.h"
namespace cvc5 {
namespace theory {
namespace arith {
namespace nl {
namespace cad {
class Constraints
{
public:
/** Type alias for a list of constraints. */
using Constraint = std::tuple<poly::Polynomial, poly::SignCondition, Node>;
using ConstraintVector = std::vector<Constraint>;
VariableMapper& varMapper() { return d_varMapper; }
/**
* Add a constraint (represented by a polynomial and a sign condition) to the
* list of constraints.
*/
void addConstraint(const poly::Polynomial& lhs,
poly::SignCondition sc,
Node n);
/**
* Add a constraints (represented by a node) to the list of constraints.
* The given node can either be a negation (NOT) or a suitable relation symbol
* as checked by is_suitable_relation().
*/
void addConstraint(Node n);
/**
* Gives the list of added constraints.
*/
const ConstraintVector& getConstraints() const;
/**
* Remove all constraints.
*/
void reset();
private:
/**
* A list of constraints, each comprised of a polynomial and a sign
* condition.
*/
ConstraintVector d_constraints;
/**
* A mapping from cvc5 variables to poly variables.
*/
VariableMapper d_varMapper;
void sortConstraints();
};
} // namespace cad
} // namespace nl
} // namespace arith
} // namespace theory
} // namespace cvc5
#endif
#endif
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