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/********************* */
/*! \file arith_constants.h
** \verbatim
** Original author: taking
** Major contributors: mdeters
** Minor contributors (to current version): none
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010 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 [[ Add one-line brief description here ]]
**
** [[ Add lengthier description here ]]
** \todo document this file
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__ARITH__ARITH_CONSTANTS_H
#define __CVC4__THEORY__ARITH__ARITH_CONSTANTS_H
#include "expr/node.h"
#include "expr/node_manager.h"
#include "util/rational.h"
#include "theory/arith/delta_rational.h"
namespace CVC4 {
namespace theory {
namespace arith {
class ArithConstants {
public:
Rational d_ZERO;
Rational d_ONE;
Rational d_NEGATIVE_ONE;
DeltaRational d_ZERO_DELTA;
Node d_ZERO_NODE;
Node d_ONE_NODE;
Node d_NEGATIVE_ONE_NODE;
ArithConstants(NodeManager* nm) :
d_ZERO(0,1),
d_ONE(1,1),
d_NEGATIVE_ONE(-1,1),
d_ZERO_DELTA(d_ZERO),
d_ZERO_NODE(nm->mkConst(d_ZERO)),
d_ONE_NODE(nm->mkConst(d_ONE)),
d_NEGATIVE_ONE_NODE(nm->mkConst(d_NEGATIVE_ONE))
{}
~ArithConstants() {
d_ZERO_NODE = Node::null();
d_ONE_NODE = Node::null();
d_NEGATIVE_ONE_NODE = Node::null();
}
};/* class ArithConstants */
}/* namespace CVC4::theory::arith */
}/* namespace CVC4::theory */
}/* namespace CVC4 */
#endif /* __CVC4__THEORY__ARITH_ARITH_CONSTANTS_H */
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