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std::get(std::pair)

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< cpp‎ | utility‎ | pair

 
 
Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
initializer_list(C++11)
bitset
hash(C++11)
Operadores relacionales
Original:
Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Pares y tuplas
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Cambiar, hacia adelante y mover
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
std::pair
Las funciones miembro
Original:
Member functions
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pair::pair
pair::operator=
pair::swap
Terceros funciones
Original:
Non-member functions
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make_pair
operator=
operator!=
operator<
operator<=
operator>
operator>=
std::swap
get(C++11)
Clases de ayuda
Original:
Helper classes
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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) (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)
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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Contenido

[editar] Parámetros

p -
par cuyo contenido desea extraer
Original:
pair whose contents to extract
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[editar] 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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[editar] Excepciones

1-3)
noexcept specification:  
noexcept
  (desde C++11)

[editar] 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)


[editar] Ver también

accesos a tuplas elemento especificado
Original:
tuple accesses specified element
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(función de plantilla) [edit]
accesses an element of an array
(función de plantilla) [edit]