std::get(std::array)

 

C++

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array (C++11)

vector

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forward_list (C++11)

list

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std::array

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.

Elemento acceso 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.

array::at

array::operator[]

array::front

array::back

array::data

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

array::beginarray::cbegin

array::endarray::cend

array::rbeginarray::crbegin

array::rendarray::crend

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

array::empty

array::size

array::max_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.

array::fill

array::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.

get

swap

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

tuple_element

 

template<size_t I, class T, size_t N > T& get( array<T,N>& a );	(1)	(desde C++11)
template<size_t I, class T, size_t N > T&& get( array<T,N>&& a );	(2)	(desde C++11)
template<size_t I, class T, size_t N > const T& get( const array<T,N>& a );	(3)	(desde C++11)

Extrae el elemento Ith elemento de la matriz .

Original:

Extracts the Ith element element from the array.

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I debe ser un valor entero en [0, N) rango. Esto se aplica en tiempo de compilación en lugar de at() o operator[]() .

Original:

I must be an integer value in range [0, N). This is enforced at compile time as opposed to at() or operator[]().

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Parámetros

a

-

matriz cuyo contenido desea extraer Original: array 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)

Referencia al elemento Ith de a .

Original:

Reference to the Ith element of a.

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2)

Rvalue referencia al elemento de Ith a, a menos que el elemento sea de valor-i tipo de referencia, en cuyo caso se devuelve lvalue referencia .

Original:

Rvalue reference to the Ith element of a, unless the element is of lvalue reference type, in which case lvalue reference is returned.

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3)

Const referencia al elemento de Ith a .

Original:

Const reference to the Ith element of a.

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Excepciones

noexcept specification:  

noexcept

  (desde C++11)

Ejemplo

#include <iostream>
#include <array>
 
int main()
{
    std::array<int, 3> arr;
 
    // set values:
    std::get<0>(arr) = 1;
    std::get<1>(arr) = 2;
    std::get<2>(arr) = 3;
 
    // get values:
    std::cout << "(" << std::get<0>(arr) << ", " << std::get<1>(arr)
              << ", " << std::get<2>(arr) << ")\n";
}

Salida:

(1, 2, 3)

Ver también

operator[]	acceder al elemento especificado (función miembro público)
at	acceder al elemento especificado con comprobación de límites Original: access specified element with bounds checking The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función miembro público)
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. (plantilla de función)
std::get(std::pair) (C++11)	accede a un elemento de un pair Original: accesses an element of a pair The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (plantilla de función)