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/********************* */
/*! \file predicate.h
** \verbatim
** Original author: Morgan Deters
** Major contributors: none
** Minor contributors (to current version): none
** This file is part of the CVC4 project.
** Copyright (c) 2009-2014 New York University and The University of Iowa
** 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 "util/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 */
#include "expr/expr.h"
namespace CVC4 {
class CVC4_PUBLIC Predicate {
Expr d_predicate;
Expr d_witness;
public:
Predicate(Expr e, Expr w = Expr()) throw(IllegalArgumentException);
operator Expr() 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;
};/* class Predicate */
}/* CVC4 namespace */
#endif /* __CVC4__PREDICATE_H */
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