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/********************* */
/*! \file emptyset.cpp
** \verbatim
** Top contributors (to current version):
** Tim King, Kshitij Bansal, Andres Noetzli
** 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 [[ Add one-line brief description here ]]
**
** [[ Add lengthier description here ]]
** \todo document this file
**/
#include "expr/emptyset.h"
#include <iostream>
#include "expr/type_node.h"
namespace cvc5 {
std::ostream& operator<<(std::ostream& out, const EmptySet& asa) {
return out << "emptyset(" << asa.getType() << ')';
}
size_t EmptySetHashFunction::operator()(const EmptySet& es) const {
return TypeNodeHashFunction()(es.getType());
}
/**
* Constructs an emptyset of the specified type. Note that the argument
* is the type of the set itself, NOT the type of the elements.
*/
EmptySet::EmptySet(const TypeNode& setType) : d_type(new TypeNode(setType)) {}
EmptySet::EmptySet(const EmptySet& es) : d_type(new TypeNode(es.getType())) {}
EmptySet& EmptySet::operator=(const EmptySet& es) {
(*d_type) = es.getType();
return *this;
}
EmptySet::~EmptySet() {}
const TypeNode& EmptySet::getType() const { return *d_type; }
bool EmptySet::operator==(const EmptySet& es) const
{
return getType() == es.getType();
}
bool EmptySet::operator!=(const EmptySet& es) const { return !(*this == es); }
bool EmptySet::operator<(const EmptySet& es) const
{
return getType() < es.getType();
}
bool EmptySet::operator<=(const EmptySet& es) const
{
return getType() <= es.getType();
}
bool EmptySet::operator>(const EmptySet& es) const { return !(*this <= es); }
bool EmptySet::operator>=(const EmptySet& es) const { return !(*this < es); }
} // namespace cvc5
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