std::hash (std::bitset)
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| template<size_t N> struct hash<bitset<N>>; |
(depuis C++11) | |
La spécialisation de template de std::hash pour std::bitset<N> permet aux utilisateurs d'obtenir des hachages d'objets de std::bitset<N> type .
Original:
The template specialization of std::hash for std::bitset<N> allows users to obtain hashes of objects of type std::bitset<N>.
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[modifier] Exemple
Le code suivant montre une sortie possible d'une fonction de hachage utilisée sur plusieurs bitsets:
Original:
The following code shows one possible output of a hash function used on several bitsets:
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You can help to correct and verify the translation. Click here for instructions.
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#include <iostream> #include <bitset> #include <functional> int main() { std::bitset<4> b1(1); std::bitset<4> b2(2); std::bitset<4> b3(b2); std::hash<std::bitset<4>> hash_fn; size_t h1 = hash_fn(b1); size_t h2 = hash_fn(b2); size_t h3 = hash_fn(b3); std::cout << h1 << '\n'; std::cout << h2 << '\n'; std::cout << h3 << '\n'; }
Résultat :
67918732 118251589 118251589
[modifier] Voir aussi
| (C++11) |
hash function object (classe générique) |
