std::hash (std::bitset)
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| template<size_t N> struct hash<bitset<N>>; |
(desde C++11) | |
A especialização de modelo de std::hash para std::bitset<N> permite que os usuários obtenham hashes de objetos de std::bitset<N> tipo.
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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[editar] Exemplo
O código a seguir mostra uma possível saída de uma função hash usado em vários 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'; }
Saída:
67918732 118251589 118251589
[editar] Veja também
| (C++11) |
hash function object (modelo de classe) |
