std::hash (std::experimental::string_view, std::experimental::wstring_view, std::experimental::u16string_view, std::experimental::u32string_view)

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Filesystem library (filesystem TS)
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Defined in header <experimental/string_view>
template<> struct hash<std::experimental::string_view>;

template<> struct hash<std::experimental::wstring_view>;
template<> struct hash<std::experimental::u16string_view>;

template<> struct hash<std::experimental::u32string_view>;
(library fundamentals TS)

Template specializations of std::hash for the various view classes for hashing views.

[edit] See also

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