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/********************* */
/*! \file roundingmode.h
** \verbatim
** Top contributors (to current version):
** Aina Niemetz, Martin Brain, Tim King
** 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 The definition of rounding mode values.
**/
#include "cvc4_public.h"
#ifndef CVC5__ROUNDINGMODE_H
#define CVC5__ROUNDINGMODE_H
#include <fenv.h>
namespace cvc5 {
#define CVC5_NUM_ROUNDING_MODES 5
/**
* A concrete instance of the rounding mode sort
*/
enum RoundingMode
{
ROUND_NEAREST_TIES_TO_EVEN = FE_TONEAREST,
ROUND_TOWARD_POSITIVE = FE_UPWARD,
ROUND_TOWARD_NEGATIVE = FE_DOWNWARD,
ROUND_TOWARD_ZERO = FE_TOWARDZERO,
// Initializes this to the diagonalization of the 4 other values.
ROUND_NEAREST_TIES_TO_AWAY =
(((~FE_TONEAREST) & 0x1) | ((~FE_UPWARD) & 0x2) | ((~FE_DOWNWARD) & 0x4)
| ((~FE_TOWARDZERO) & 0x8))
}; /* enum RoundingMode */
/**
* Hash function for rounding mode values.
*/
struct RoundingModeHashFunction
{
inline size_t operator()(const RoundingMode& rm) const { return size_t(rm); }
}; /* struct RoundingModeHashFunction */
} // namespace cvc5
#endif
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