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/********************* */
/*! \file arith_activity.h
** \verbatim
** Original author: taking
** Major contributors: none
** 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_ACTIVITY_H
#define __CVC4__THEORY__ARITH__ARITH_ACTIVITY_H
#include "expr/node.h"
#include "expr/attribute.h"
namespace CVC4 {
namespace theory {
namespace arith {
struct ArithActivityID {};
typedef expr::Attribute<ArithActivityID, uint64_t> ArithActivity;
inline void resetActivity(TNode var){
var.setAttribute(ArithActivity(), 0);
}
inline void initActivity(TNode var){
resetActivity(var);
}
inline uint64_t getActivity(TNode var){
return var.getAttribute(ArithActivity());
}
inline void increaseActivity(TNode var, uint64_t x){
Assert(var.hasAttribute(ArithActivity()));
uint64_t newValue = x + getActivity(var);
var.setAttribute(ArithActivity(), newValue);
}
const static uint64_t ACTIVITY_THRESHOLD = 100;
}; /* namesapce arith */
}; /* namespace theory */
}; /* namespace CVC4 */
#endif
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