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/****************************************************************************** |
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* Top contributors (to current version): |
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* Andrew Reynolds |
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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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* Utilities for cardinality classes. |
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*/ |
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#include "util/cardinality_class.h" |
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#include <iostream> |
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namespace cvc5 { |
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const char* toString(CardinalityClass c) |
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{ |
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switch (c) |
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{ |
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case CardinalityClass::ONE: return "ONE"; |
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case CardinalityClass::INTERPRETED_ONE: return "INTERPRETED_ONE"; |
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case CardinalityClass::FINITE: return "FINITE"; |
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case CardinalityClass::INTERPRETED_FINITE: return "INTERPRETED_FINITE"; |
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case CardinalityClass::INFINITE: return "INFINITE"; |
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case CardinalityClass::UNKNOWN: return "UNKNOWN"; |
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default: return "?CardinalityClass?"; |
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} |
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} |
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std::ostream& operator<<(std::ostream& out, CardinalityClass c) |
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{ |
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out << toString(c); |
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return out; |
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} |
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CardinalityClass minCardinalityClass(CardinalityClass c1, CardinalityClass c2) |
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{ |
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return c1 < c2 ? c1 : c2; |
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} |
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CardinalityClass maxCardinalityClass(CardinalityClass c1, CardinalityClass c2) |
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{ |
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return c1 > c2 ? c1 : c2; |
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} |
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bool isCardinalityClassFinite(CardinalityClass c, bool fmfEnabled) |
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{ |
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if (c == CardinalityClass::ONE || c == CardinalityClass::FINITE) |
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{ |
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return true; |
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} |
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if (fmfEnabled) |
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{ |
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// if finite model finding is enabled, interpreted one/finite are also |
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// considered finite. |
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return c == CardinalityClass::INTERPRETED_ONE |
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|| c == CardinalityClass::INTERPRETED_FINITE; |
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} |
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return false; |
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} |
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} // namespace cvc5 |