std::hash
Defined in header <string_view> | | |
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template<> struct hash<std::string_view>; template<> struct hash<std::wstring_view>; template<> struct hash<std::u16string_view>; template<> struct hash<std::u32string_view>; | | (since C++17) |
模板的专门化std::hash用于哈希视图的各种视图类。
These hashes equal the hashes of corresponding std::basic_string classes: If S is one of the standard basic_string types, SV is the corresponding string view type, and s is an object of type S, then std::hash<S>()(s) == std::hash<SV>()(SV(s)). | (since C++17) |
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另见
hash (C++11) | hash function object (class template) |
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