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