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/********************* */
/*! \file clause_id.h
** \verbatim
** Top contributors (to current version):
** Paul Meng, Mathias Preiner, Liana Hadarean
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 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 Definition of ClauseId
**
** A ClauseId is a shared identifier between the proofs module and the sat
** solver for a clause.
**/
#include "cvc4_private.h"
#ifndef CVC4__PROOF__CLAUSE_ID_H
#define CVC4__PROOF__CLAUSE_ID_H
namespace CVC4 {
/**
* A ClauseId is a shared identifier between the proofs module and the sat
* solver for a clause.
*/
typedef unsigned ClauseId;
/** Reserved clauseId values used in the resolution proof. The represent,
* respectively, the empty clause, that adding the clause to the SAT solver was
* a no-op, and that an error occurred when trying to add. */
const ClauseId ClauseIdEmpty(-1);
const ClauseId ClauseIdUndef(-2);
const ClauseId ClauseIdError(-3);
}/* CVC4 namespace */
#endif /* CVC4__PROOF__CLAUSE_ID_H */
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