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std::hash (std::bitset)

提供: cppreference.com
< cpp‎ | utility‎ | bitset

 
 
ユーティリティライブラリ
支援を入力します (basic types, RTTI, type traits)
動的なメモリ管理
エラー処理
プログラムユーティリティ
可変個引数関数
日付と時刻
関数オブジェクト
initializer_list(C++11)
bitset
hash(C++11)
関係演算子
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
ペアとタプル
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
フォワード、スワップ、および移動
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
std::bitset
メンバータイプ
Original:
Member types
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bitset::reference
メンバ関数
Original:
Member functions
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bitset::bitset
bitset::operator==
bitset::operator!=
要素アクセスの循環参照を解除するために使用されている
Original:
Element access
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bitset::operator[]
bitset::test
bitset::all
bitset::any
bitset::none
(C++11)

 
bitset::count
容量
Original:
Capacity
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bitset::size
修飾子
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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
変換
Original:
Conversions
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bitset::to_string
bitset::to_ulong
bitset::to_ullong(C++11)
非メンバ関数
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Non-member functions
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operator&
operator|
operator^
operator<<
operator>>
ヘルパークラス
Original:
Helper classes
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std::hash(C++11)
 
template<size_t N> struct hash<bitset<N>>;
(C++11およびそれ以降)
std::hashstd::bitset<N>用のテンプレートの特殊化は、ユーザーがタイプstd::bitset<N>のオブジェクトのハッシュ値を取得することができます.
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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[編集]

次のコードは、いくつかのビットセットで使用されるハッシュ関数の一つの可能​​な出力を示しています
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

[編集] も参照してください

(C++11)
hash function object
(クラステンプレート) [edit]