std::bitset::bitset

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C++

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Libreria di Utilità

Stringhe

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Algoritmi

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Libreria matematca

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Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Utilità libreria

Tipo di supporto (basic types, RTTI, type traits)

Gestione della memoria dinamica

La gestione degli errori

Programma di utilità

Funzioni variadic

Data e ora

Funzione oggetti

initializer_list (C++11)

bitset

hash (C++11)

Gli operatori relazionali Original: Relational operators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

rel_ops::operator!= rel_ops::operator> rel_ops::operator<= rel_ops::operator>=

Coppie e tuple Original: Pairs and tuples The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

Swap, in avanti e spostare Original: Swap, forward and move The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

swap

forward (C++11)

move (C++11)

move_if_noexcept (C++11)

declval (C++11)

 

std::bitset

Membri tipi Original: Member types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::reference

Membri funzioni Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::bitset

bitset::operator== bitset::operator!=

Elemento accesso Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::operator[]

bitset::test

bitset::all bitset::any bitset::none (C++11)

bitset::count

Capacità Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::size

Modificatori Original: Modifiers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::operator&= bitset::operator|= bitset::operator^= bitset::operator~

bitset::operator<<= bitset::operator>>= bitset::operator<< bitset::operator>>

bitset::set

bitset::reset

bitset::flip

Conversioni Original: Conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

bitset::to_string

bitset::to_ulong

bitset::to_ullong (C++11)

Non membri funzioni Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator& operator| operator^

operator<< operator>>

Helper classi Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

std::hash (C++11)

 

<tbody> </tbody>

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)	(fino al c++11) (dal 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)	(dal C++11)

Costruisce un nuovo bitset da una delle varie fonti di dati opzionali:

Original:

Constructs a new bitset from one of several optional data sources:

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1. Costruttore di default. Costruisce un bitset con tutti i bit impostati a zero.

Original:

1. Default constructor. Constructs a bitset with all bits set to zero.

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2. Costruisce un bitset utilizzando i bit in val. Se il N è la dimensione del bitset e M è il numero di bit impostati in val, poi solo min (N, M) bit sarà incluso nel 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. Costruisce un bitset utilizzando i caratteri della std::basic_string str. Un pos opzionale posizione di partenza e n lunghezza può essere fornito, così come i caratteri che denotano valori alternativi per set (one) e unset (zero) bit.

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 lunghezza effettiva della stringa di inizializzazione è min (n, str.size() - pos).

Original:

The effective length of the initializing string is min(n, str.size() - pos).

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Se pos > str.size(), questo costruttore genera std::out_of_range. Se tutti i caratteri esaminati in str non sono zero o one, getta 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. Simile a (3), ma utilizza un CharT* invece di un std::basic_string.

Original:

4. Similar to (3), but uses a CharT* instead of a std::basic_string.

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Parametri

val	-	Numero utilizzato per inizializzare il bitset Original: number used to initialize the bitset The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
str	-	stringa utilizzata per inizializzare il bitset Original: string used to initialize the bitset The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
pos	-	un offset iniziale in str Original: a starting offset into str The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
n	-	il numero di caratteri da utilizzare da str Original: number of characters to use from str The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
one	-	carattere alternativo per i bit impostati in str Original: alternate character for set bits in str The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
zero	-	carattere alternativo per i bit non impostate in str Original: alternate character for unset bits in str The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Eccezioni

1. nessuno

Original:

1. none

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2. nessuno

Original:

2. none

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3. std::out_of_range if pos > str.size()

4. nessuno

Original:

4. none

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Esempio

#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;
}

Vedi anche

set	sets bits to true or given value (metodo pubblico)
reset	imposta i bit a false Original: sets bits to false The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)