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std::hash(std::experimental::propagate_const)

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template<class T> struct hash<std::experimental::propagate_const<T>>;
(library fundamentals TS v2)

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

For a given std::experimental::propagate_const<T> p, this specialization ensures that std::hash<std::experimental::propagate_const<T>>()(p) == std::hash<T>()(p.t_), where p.t_ is the pointer-like object wrapped by p.

[edit] Example

[edit] See also

(C++11)
hash function object
(class template) [edit]