std::hash (std::bitset)
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<metanoindex/>
<tbody> </tbody> 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>.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
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:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
#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
Voir aussi
(C++11) |
hash function object (classe générique) |