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/********************* */
/*! \file interval.h
** \verbatim
** Top contributors (to current version):
** Gereon Kremer
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 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
**/
#ifndef CVC4__THEORY__ARITH__ICP__INTERVAL_H
#define CVC4__THEORY__ARITH__ICP__INTERVAL_H
#include "cvc4_private.h"
#ifdef CVC4_POLY_IMP
#include <poly/polyxx.h>
#include "expr/node.h"
namespace CVC5 {
namespace theory {
namespace arith {
namespace nl {
namespace icp {
/**
* Represents an interval with poly::Value bounds and origins for these bounds.
*/
struct Interval
{
/** The lower bound */
poly::Value lower = poly::Value::minus_infty();
/** Whether the lower bound is strict or weak */
bool lower_strict = true;
/** The origin of the lower bound */
Node lower_origin;
/** The upper bound */
poly::Value upper = poly::Value::plus_infty();
/** Whether the upper bound is strict or weak */
bool upper_strict = true;
/** The origin of the upper bound */
Node upper_origin;
};
/** Print an interval */
inline std::ostream& operator<<(std::ostream& os, const Interval& i)
{
return os << (i.lower_strict ? '(' : '[') << i.lower << " .. " << i.upper
<< (i.upper_strict ? ')' : ']');
}
} // namespace icp
} // namespace nl
} // namespace arith
} // namespace theory
} // namespace CVC5
#endif
#endif
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