std::get(std::pair)

 

C++

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Utilidades de la biblioteca

Escriba apoyo (basic types, RTTI, type traits)

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Objetos Function

initializer_list (C++11)

bitset

hash (C++11)

Operadores relacionales 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 y 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)

Cambiar, hacia adelante y mover 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::pair

Las funciones miembro 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=

pair::swap

Terceros funciones 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)

Clases de ayuda 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)

tuple_element (C++11)

 

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

Extrae un elemento de la tupla usando par-como el interfaz .

Original:

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

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Parámetros

p

-

par cuyo contenido desea extraer 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)

Devoluciones p.first si N==0 y p.second si N==1 .

Original:

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

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3)

Devoluciones std::forward<T1&&>(p.first) si N==0 y std::forward<T2&&>(p.second) si 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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Excepciones

1-3)

noexcept specification:  

noexcept

  (ya que C + +11)

Ejemplo

#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;
}

Output:

(1, 3.14)

Ver también

std::get(std::tuple)	accesos a tuplas 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. (función de plantilla)
std::get(std::array)	accesses an element of an array (función de plantilla)