tmp/tmp7snvs_h5/{from.md → to.md}
RENAMED
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#### Comparison <a id="util.smartptr.shared.cmp">[[util.smartptr.shared.cmp]]</a>
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``` cpp
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template<class T, class U>
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bool operator==(const shared_ptr<T>& a, const shared_ptr<U>& b) noexcept;
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```
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@@ -19,15 +19,19 @@ template<class T, class U>
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strong_ordering operator<=>(const shared_ptr<T>& a, const shared_ptr<U>& b) noexcept;
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```
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*Returns:* `compare_three_way()(a.get(), b.get())`.
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[*Note
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to be used as keys in associative containers. — *end note*]
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``` cpp
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template<class T>
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strong_ordering operator<=>(const shared_ptr<T>& a, nullptr_t) noexcept;
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```
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*Returns:*
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##### Comparison <a id="util.smartptr.shared.cmp">[[util.smartptr.shared.cmp]]</a>
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``` cpp
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template<class T, class U>
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bool operator==(const shared_ptr<T>& a, const shared_ptr<U>& b) noexcept;
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```
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strong_ordering operator<=>(const shared_ptr<T>& a, const shared_ptr<U>& b) noexcept;
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```
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*Returns:* `compare_three_way()(a.get(), b.get())`.
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[*Note 8*: Defining a comparison operator function allows `shared_ptr`
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objects to be used as keys in associative containers. — *end note*]
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``` cpp
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template<class T>
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strong_ordering operator<=>(const shared_ptr<T>& a, nullptr_t) noexcept;
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```
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*Returns:*
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``` cpp
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compare_three_way()(a.get(), static_cast<typename shared_ptr<T>::element_type*>(nullptr).
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```
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