std::hash (std::string, std::wstring, std::u16string, std::u32string)
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< cpp | string | basic string
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| Definido no cabeçalho <string>
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| template<> struct hash<std::string>; template<> struct hash<std::wstring>; |
(desde C++11) | |
The template specializations of std::hash for the various string classes allow users to obtain hashes of strings.
[editar] Exemplo
The following code shows one possible output of a hash function used on a string:
#include <iostream> #include <string> #include <functional> int main() { std::string s = "Stand back! I've got jimmies!"; std::hash<std::string> hash_fn; size_t hash = hash_fn(s); std::cout << hash << '\n'; }
Saída:
325378910
[editar] Veja também
| (C++11) |
hash function object (modelo de classe) |
