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33 lines
764 B
C++
33 lines
764 B
C++
#pragma once
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#include <functional>
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#include <memory>
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namespace llarp
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{
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/// type for comparing smart pointer's managed values
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template <typename Ptr_t, typename Compare = std::less<>>
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struct ComparePtr
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{
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bool
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operator()(const Ptr_t& left, const Ptr_t& right) const
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{
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if (left && right)
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return Compare()(*left, *right);
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return Compare()(left, right);
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}
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};
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/// type for comparing weak_ptr by value
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template <typename Type_t, typename Compare = std::less<>>
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struct CompareWeakPtr
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{
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bool
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operator()(const std::weak_ptr<Type_t>& left, const std::weak_ptr<Type_t>& right) const
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{
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return ComparePtr<std::shared_ptr<Type_t>, Compare>{}(left.lock(), right.lock());
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}
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};
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} // namespace llarp
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