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std::hash

template<class T> struct hash<shared_ptr<T>>;

(since C++11)

The template specialization of std::hash for std::shared_ptr<T> allows users to obtain hashes of objects of type std::shared_ptr<T>.

For a given std::shared_ptr<T> p, this specialization ensures that std::hash<std::shared_ptr<T>>()(p) == std::hash<T*>()(p.get()).

Example

See also

(C++11)

hash function object
(class template)

Links:

http://en.cppreference.com/w/cpp/memory/shared_ptr/hash

doc_CPP

2016-10-11 10:03:14

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