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std::hash (std::bitset)

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< cpp‎ | utility‎ | bitset

 
 
 
std::bitset
Mitglied Typen
Original:
Member types
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bitset::reference
Member-Funktionen
Original:
Member functions
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bitset::bitset
bitset::operator==
bitset::operator!=
Elementzugriff zerstört
Original:
Element access
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bitset::operator[]
bitset::test
bitset::all
bitset::any
bitset::none
(C++11)

 
bitset::count
Kapazität
Original:
Capacity
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bitset::size
Modifiers
Original:
Modifiers
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bitset::operator&=
bitset::operator|=
bitset::operator^=
bitset::operator~
bitset::operator<<=
bitset::operator>>=
bitset::operator<<
bitset::operator>>
bitset::set
bitset::reset
bitset::flip
Conversions
Original:
Conversions
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bitset::to_string
bitset::to_ulong
bitset::to_ullong(C++11)
Non-Member-Funktionen
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Non-member functions
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operator&
operator|
operator^
operator<<
operator>>
Helper-Klassen
Original:
Helper classes
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std::hash(C++11)
 
template<size_t N> struct hash<bitset<N>>;
(seit C++11)
Die Vorlage Spezialisierung std::hash für std::bitset<N> ermöglicht es Benutzern, Hashes von Objekten des Typs std::bitset<N> zu erhalten .
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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[Bearbeiten] Beispiel

Der folgende Code zeigt eine mögliche Ausgabe einer Hash-Funktion auf mehrere BitSets verwendet:
Original:
The following code shows one possible output of a hash function used on several bitsets:
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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';
}

Output:

67918732
118251589
118251589

[Bearbeiten] Siehe auch

(C++11)
hash function object
(Klassen-Template) [edit]