std::get(std::pair)

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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.

pair

tuple (C++11)

piecewise_construct_t (C++11)

piecewise_construct (C++11)

Troque, avançar e avançar 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)

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std::pair

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.

pair::pair

pair::operator=

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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.

make_pair

operator=operator!=operator<operator<=operator>operator>=

std::swap

get (C++11)

Classes auxiliares 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.

tuple_size (C++11)

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<tbody> </tbody>

template< size_t N, class T1, class T2 > typename std::tuple_element<I, std::pair<T1,T2> >::type& get( pair<T1, T2>& p );	(1)	(desde C++11)
template< size_t N, class T1, class T2 > const typename std::tuple_element<I, std::pair<T1,T2> >::type& get( const pair<T1,T2>& p );	(2)	(desde C++11)
template< size_t N, class T1, class T2 > typename std::tuple_element<I, std::pair<T1,T2> >::type&& get( std::pair<T1,T2>&& p );	(3)	(desde C++11)

Extrai um elemento do par usando-tupla como interface.

Original:

Extracts a element from the pair using tuple-like interface.

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You can help to correct and verify the translation. Click here for instructions.

Parâmetros

p

-

par cujo conteúdo para extrair Original: pair whose contents to extract 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

1-2)

Retorna p.first se N==0 e p.second se N==1.

Original:

Returns p.first if N==0 and p.second if N==1.

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3)

Retorna std::forward<T1&&>(p.first) se N==0 e std::forward<T2&&>(p.second) se N==1

Original:

Returns std::forward<T1&&>(p.first) if N==0 and std::forward<T2&&>(p.second) if N==1

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Exceções

1-3)

noexcept specification:  

<tbody> </tbody>

noexcept

  (desde C++11)

Exemplo

#include <iostream>
#include <utility>

int main()
{
    auto p = std::make_pair(1, 3.14);
    std::cout << '(' << std::get<0>(p) << ", " << std::get<1>(p) << ')' << std::endl;
}

Saída:

(1, 3.14)

Veja também

std::get(std::tuple)	tupla acessa elemento especificado Original: tuple accesses specified element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (modelo de função)
std::get(std::array)	accesses an element of an array (modelo de função)