std::bitset::test

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Os operadores relacionais 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>=

Pares e tuplas 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.

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swap

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std::bitset

Tipos de membro 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

Funções de membro 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!=

acesso. Elemento 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

Capacidade 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

Modificadores 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

Conversões 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)

Não-membros funções 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>>

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std::hash (C++11)

 

<tbody> </tbody>

bool test( size_t pos ) const;

Retorna o valor do bit no pos posição.

Original:

Returns the value of the bit at the position pos.

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Ao contrário operator[](), realiza uma verificação de limites e joga std::out_of_range se pos não corresponde a uma posição válida no bitset.

Original:

Unlike operator[](), performs a bounds check and throws std::out_of_range if pos does not correspond to a valid position in the bitset.

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Parâmetros

pos

-

posição do bit para retornar Original: position of the bit to return The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valor de retorno

true se o bit solicitado está definido, caso contrário false.

Original:

true if the requested bit is set, false otherwise.

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Exceções

std::out_of_range se pos não corresponde a uma posição válida no bitset.

Original:

std::out_of_range if pos does not correspond to a valid position within the bitset.

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Exemplo

#include <iostream>
#include <bitset>

int main() 
{
    std::bitset<10> b1("1111010000");

    size_t idx = 0;
    while (idx < b1.size() && !b1.test(idx)) {
      ++idx;
    }

    if (idx < b1.size()) {
        std::cout << "first set bit at index " << idx << '\n';
    } else {
        std::cout << "no set bits\n";
    }

    return 0;
}

Saída:

first set bit at index 4

Veja também

operator[]	acessa pouco específico Original: accesses specific bit The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)