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/****************************************************************************** |
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* Top contributors (to current version): |
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* Tim King, Kshitij Bansal, Andres Noetzli |
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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 "expr/emptyset.h" |
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#include <iostream> |
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#include "expr/type_node.h" |
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namespace cvc5 { |
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std::ostream& operator<<(std::ostream& out, const EmptySet& asa) { |
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return out << "emptyset(" << asa.getType() << ')'; |
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} |
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size_t EmptySetHashFunction::operator()(const EmptySet& es) const { |
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return std::hash<TypeNode>()(es.getType()); |
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} |
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/** |
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* Constructs an emptyset of the specified type. Note that the argument |
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* is the type of the set itself, NOT the type of the elements. |
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*/ |
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EmptySet::EmptySet(const TypeNode& setType) : d_type(new TypeNode(setType)) {} |
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EmptySet::EmptySet(const EmptySet& es) : d_type(new TypeNode(es.getType())) {} |
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EmptySet& EmptySet::operator=(const EmptySet& es) { |
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(*d_type) = es.getType(); |
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return *this; |
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} |
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EmptySet::~EmptySet() {} |
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const TypeNode& EmptySet::getType() const { return *d_type; } |
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bool EmptySet::operator==(const EmptySet& es) const |
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{ |
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return getType() == es.getType(); |
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} |
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bool EmptySet::operator!=(const EmptySet& es) const { return !(*this == es); } |
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bool EmptySet::operator<(const EmptySet& es) const |
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{ |
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return getType() < es.getType(); |
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} |
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bool EmptySet::operator<=(const EmptySet& es) const |
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{ |
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return getType() <= es.getType(); |
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} |
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bool EmptySet::operator>(const EmptySet& es) const { return !(*this <= es); } |
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bool EmptySet::operator>=(const EmptySet& es) const { return !(*this < es); } |
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} // namespace cvc5 |