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/********************* */
/*! \file predicate.h
** \verbatim
** Top contributors (to current version):
** Morgan Deters, Tim King
** This file is part of the CVC4 project.
** Copyright (c) 2009-2016 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.\endverbatim
**
** \brief Representation of predicates for predicate subtyping
**
** Simple class to represent predicates for predicate subtyping.
** Instances of this class are carried as the payload of
** the CONSTANT-metakinded SUBTYPE_TYPE types.
**/
#include "cvc4_public.h"
#ifndef __CVC4__PREDICATE_H
#define __CVC4__PREDICATE_H
#include "base/exception.h"
namespace CVC4 {
class Predicate;
std::ostream& operator<<(std::ostream& out, const Predicate& p) CVC4_PUBLIC;
struct CVC4_PUBLIC PredicateHashFunction {
size_t operator()(const Predicate& p) const;
};/* class PredicateHashFunction */
}/* CVC4 namespace */
namespace CVC4 {
class CVC4_PUBLIC Expr;
}/* CVC4 namespace */
namespace CVC4 {
class CVC4_PUBLIC Predicate {
public:
Predicate(const Expr& e) throw(IllegalArgumentException);
Predicate(const Expr& e, const Expr& w) throw(IllegalArgumentException);
Predicate(const Predicate& p);
~Predicate();
Predicate& operator=(const Predicate& p);
//operator Expr() const;
const Expr& getExpression() const;
const Expr& getWitness() const;
bool operator==(const Predicate& p) const;
friend std::ostream& CVC4::operator<<(std::ostream& out, const Predicate& p);
friend size_t PredicateHashFunction::operator()(const Predicate& p) const;
private:
Expr* d_predicate;
Expr* d_witness;
};/* class Predicate */
}/* CVC4 namespace */
#endif /* __CVC4__PREDICATE_H */
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