# std::hash(std::experimental::observer_ptr)

From cppreference.com
< cpp‎ | experimental‎ | observer ptr

Defined in header `<experimental/memory>` |  |
template<class T> struct hash<std::experimental::observer_ptr<T>>; |  | (library fundamentals TS v2)

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

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

### Example

| This section is incomplete Reason: no example

### See also

hash (C++11) | hash function object (class template)

Retrieved from "http://en.cppreference.com/mwiki/index.php?title=cpp/experimental/observer_ptr/hash&oldid=79441"
Category:

- Todo no example