std::hash(std::experimental::propagate_const)
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< cpp | experimental | propagate const
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std::experimental::propagate_const
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std::hash
Defined in header
<experimental/propagate_const>
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
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