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/****************************************************************************** |
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* Top contributors (to current version): |
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* Morgan Deters, Mathias Preiner |
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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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* [[ Add one-line brief description here ]] |
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* |
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* [[ Add lengthier description here ]] |
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* \todo document this file |
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*/ |
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#include "cvc5_public.h" |
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#ifndef CVC5__DIVISIBLE_H |
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#define CVC5__DIVISIBLE_H |
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#include <iosfwd> |
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#include <ostream> |
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#include <stddef.h> |
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#include "util/integer.h" |
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namespace cvc5 { |
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/** |
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* The structure representing the divisibility-by-k predicate. |
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*/ |
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struct Divisible |
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{ |
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const Integer k; |
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Divisible(const Integer& n); |
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bool operator==(const Divisible& d) const { |
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return k == d.k; |
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} |
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bool operator!=(const Divisible& d) const { |
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return !(*this == d); |
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} |
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}; /* struct Divisible */ |
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/** |
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* Hash function for the Divisible objects. |
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*/ |
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struct DivisibleHashFunction |
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{ |
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size_t operator()(const Divisible& d) const { |
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return d.k.hash(); |
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} |
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}; /* struct DivisibleHashFunction */ |
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inline std::ostream& operator<<(std::ostream& os, const Divisible& d); |
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inline std::ostream& operator <<(std::ostream& os, const Divisible& d) { |
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return os << "divisible-by-" << d.k; |
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} |
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} // namespace cvc5 |
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#endif /* CVC5__DIVISIBLE_H */ |