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std::bitset::bitset

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< cpp‎ | utility‎ | bitset

 
 
 
std::bitset
Types de membres
Original:
Member types
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bitset::reference
Les fonctions membres
Original:
Member functions
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bitset::bitset
bitset::operator==
bitset::operator!=
Elément d'accès
Original:
Element access
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bitset::operator[]
bitset::test
bitset::all
bitset::any
bitset::none
(C++11)

 
bitset::count
Capacité
Original:
Capacity
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bitset::size
Modificateurs
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)
Tiers fonctions
Original:
Non-member functions
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operator&
operator|
operator^
operator<<
operator>>
Classes d'aide
Original:
Helper classes
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std::hash (C++11)
 
constexpr bitset() noexcept;
(1)
constexpr bitset( unsigned long long val ) noexcept;
(2)
template< class CharT, class Traits, class Allocator >

explicit bitset( const std::basic_string<CharT,Traits,Allocator>& str,
                 typename std::basic_string<CharT,Traits,Allocator>::size_type pos = 0,
                 typename std::basic_string<CharT,Traits,Allocator>::size_type n =
                     std::basic_string<CharT,Traits,Allocator>::npos);

         bitset( const std::basic_string<CharT,Traits,Allocator>& str,
                 typename std::basic_string<CharT,Traits,Allocator>::size_type pos = 0,
                 typename std::basic_string<CharT,Traits,Allocator>::size_type n =
                     std::basic_string<CharT,Traits,Allocator>::npos,
                 CharT zero = CharT(0),

                 CharT one = CharT(1));
(3) (avant C++11)



(depuis C++11)
template< class CharT >

explicit bitset( const CharT* str,
                 typename std::basic_string<CharT>::size_type n =
                     std::basic_string<CharT>::npos,
                 CharT zero = CharT(0),

                 CharT one = CharT(1));
(4) (depuis C++11)
Construit une nouvelle bitset parmi plusieurs sources de données en option:
Original:
Constructs a new bitset from one of several optional data sources:
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1. Constructeur par défaut. Construit un bitset avec tous les bits sont à zéro .
Original:
1. Default constructor. Constructs a bitset with all bits set to zero.
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2. Construit un bitset à l'aide des bits dans val. Si la N est la taille de la bitset et M est le nombre de bits mis en val, alors que min (N, M) bits seront inclus dans le bitset .
Original:
2. Constructs a bitset using the bits in val. If the N is the size of the bitset and M is the number of set bits in val, then only min(N, M) bits will be included in the bitset.
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3. Construit un bitset utilisant les caractères de l'std::basic_string str. Un pos position optionnelle de départ et n longueur peut être fournie, ainsi que des caractères indiquant des valeurs de remplacement pour jeu (one) et unset (zero) bits .
Original:
3. Constructs a bitset using the characters in the std::basic_string str. An optional starting position pos and length n can be provided, as well as characters denoting alternate values for set (one) and unset (zero) bits.
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La longueur effective de la chaîne d'initialisation est min (n, str.size() - pos) .
Original:
The effective length of the initializing string is min(n, str.size() - pos).
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Si pos > str.size(), ce constructeur lève std::out_of_range. Si tous les caractères examinés dans str ne sont pas zero ou one, il jette std::invalid_argument .
Original:
If pos > str.size(), this constructor throws std::out_of_range. If any characters examined in str are not zero or one, it throws std::invalid_argument.
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4. Similaire à (3), mais utilise un CharT* au lieu d'un std::basic_string .
Original:
4. Similar to (3), but uses a CharT* instead of a std::basic_string.
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Sommaire

[modifier] Paramètres

val -
Numéro utilisé pour initialiser la bitset
Original:
number used to initialize the bitset
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str -
Chaîne utilisée pour initialiser le bitset
Original:
string used to initialize the bitset
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pos -
un décalage de départ en str
Original:
a starting offset into str
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n -
nombre de caractères à utiliser à partir de str
Original:
number of characters to use from str
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one -
caractère de remplacement pour les bits définis dans str
Original:
alternate character for set bits in str
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zero -
caractères de remplacement pour les bits non définis dans str
Original:
alternate character for unset bits in str
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[modifier] Exceptions

  1. aucune
    Original:
    none
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  2. aucune
    Original:
    none
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  3. std::out_of_range
    si
    Original:
    if
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    pos > str.size()
  4. aucune
    Original:
    none
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[modifier] Exemple

#include <bitset>
#include <string>
 
int main() 
{
    // empty constructor
    std::bitset<8> b1; // [0,0,0,0,0,0,0,0]
 
    // unsigned long long constructor
    std::bitset<8> b2(42); // [0,0,1,0,1,0,1,0]
 
    // string constructor
    std::string bit_string = "110010";
    std::bitset<8> b3(bit_string);       // [0,0,1,1,0,0,1,0]
    std::bitset<8> b4(bit_string, 2);    // [0,0,0,0,0,0,1,0]
    std::bitset<8> b5(bit_string, 2, 3); // [0,0,0,0,0,0,0,1]
 
    // string constructor using custom zero/one digits
    std::string alpha_bit_string = "aBaaBBaB";
    std::bitset<8> b6(alpha_bit_string, 0, alpha_bit_string.size(),
                      'a', 'B');         // [0,1,0,0,1,1,0,1]
 
    // char* constructor using custom digits
    std::bitset<8> b7("XXXXYYYY", 0, 'X', 'Y'); // [0,0,0,0,1,1,1,1]
    return 0;
}


[modifier] Voir aussi

définit les bits à true ou valeur donnée
Original:
sets bits to true or given value
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(fonction membre publique) [edit]
définit les bits à false
Original:
sets bits to false
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(fonction membre publique) [edit]