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/****************************************************************************** |
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* Top contributors (to current version): |
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* Aina Niemetz, Mathias Preiner, Martin Brain |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* The definition of rounding mode values. |
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*/ |
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#include "cvc5_public.h" |
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#ifndef CVC5__ROUNDINGMODE_H |
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#define CVC5__ROUNDINGMODE_H |
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#include <fenv.h> |
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#include <iosfwd> |
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namespace cvc5 { |
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#define CVC5_NUM_ROUNDING_MODES 5 |
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/** |
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* A concrete instance of the rounding mode sort |
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*/ |
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enum class RoundingMode |
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{ |
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ROUND_NEAREST_TIES_TO_EVEN = FE_TONEAREST, |
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ROUND_TOWARD_POSITIVE = FE_UPWARD, |
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ROUND_TOWARD_NEGATIVE = FE_DOWNWARD, |
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ROUND_TOWARD_ZERO = FE_TOWARDZERO, |
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// Initializes this to the diagonalization of the 4 other values. |
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ROUND_NEAREST_TIES_TO_AWAY = |
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(((~FE_TONEAREST) & 0x1) | ((~FE_UPWARD) & 0x2) | ((~FE_DOWNWARD) & 0x4) |
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| ((~FE_TOWARDZERO) & 0x8)) |
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}; /* enum RoundingMode */ |
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/** |
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* Hash function for rounding mode values. |
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*/ |
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struct RoundingModeHashFunction |
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{ |
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inline size_t operator()(const RoundingMode& rm) const { return size_t(rm); } |
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}; /* struct RoundingModeHashFunction */ |
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std::ostream& operator<<(std::ostream& os, RoundingMode s); |
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} // namespace cvc5 |
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#endif |