tmp/tmpocf2tslf/{from.md → to.md}
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###
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``` cpp
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template<class T, class D> struct hash<unique_ptr<T, D>>;
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```
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Letting `UP` be `unique_ptr<T,D>`, the specialization `hash<UP>` is
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enabled
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enabled. When enabled, for an object `p` of type `UP`, `hash<UP>()(p)`
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-
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-
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guaranteed to be `noexcept`.
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``` cpp
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template<class T> struct hash<shared_ptr<T>>;
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```
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For an object `p` of type `shared_ptr<T>`, `hash<shared_ptr<T>>()(p)`
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`hash<typename shared_ptr<T>::element_type*>()(p.get())`.
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### Smart pointer hash support <a id="util.smartptr.hash">[[util.smartptr.hash]]</a>
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``` cpp
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template<class T, class D> struct hash<unique_ptr<T, D>>;
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```
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Letting `UP` be `unique_ptr<T,D>`, the specialization `hash<UP>` is
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enabled [[unord.hash]] if and only if `hash<typename UP::pointer>` is
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enabled. When enabled, for an object `p` of type `UP`, `hash<UP>()(p)`
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evaluates to the same value as `hash<typename UP::pointer>()(p.get())`.
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The member functions are not guaranteed to be `noexcept`.
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``` cpp
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template<class T> struct hash<shared_ptr<T>>;
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```
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For an object `p` of type `shared_ptr<T>`, `hash<shared_ptr<T>>()(p)`
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evaluates to the same value as
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`hash<typename shared_ptr<T>::element_type*>()(p.get())`.
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