Namespace
Varianti

std::get(std::array)

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< cpp‎ | container‎ | array

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C++
 
Contenitori libreria
 
std::array
Membri funzioni
Original:
Member functions
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Elemento accesso
Original:
Element access
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array::at
array::operator[]
array::front
array::back
array::data
Iteratori
Original:
Iterators
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array::begin
array::cbegin
array::end
array::cend
array::rbegin
array::crbegin
array::rend
array::crend
Capacità
Original:
Capacity
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array::empty
array::size
array::max_size
Modificatori
Original:
Modifiers
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array::fill
array::swap
Non membri funzioni
Original:
Non-member functions
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get
swap
Helper classi
Original:
Helper classes
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tuple_size
tuple_element
 
template<size_t I, class T, size_t N >
T& get( array<T,N>& a );
 (1) (dal C++11)
template<size_t I, class T, size_t N >
T&& get( array<T,N>&& a );
 (2) (dal C++11)
template<size_t I, class T, size_t N >
const T& get( const array<T,N>& a );
 (3) (dal C++11)
Estrae l'elemento elemento Ith dalla matrice.
Original:
Extracts the Ith element element from the array.
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I deve essere un valore intero in [0, N) gamma. Questo viene applicato in fase di compilazione in contrasto con 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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Indice

[modifica] Parametri

a -
matrice i cui contenuti da estrarre
Original:
array whose contents to extract
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[modifica] Valore di ritorno

1)
Riferimento all'elemento Ith di a.
Original:
Reference to the Ith element of a.
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2)
Rvalue riferimento all'elemento di Ith a, a meno che l'elemento è di tipo lvalue riferimento, nel qual caso viene restituito lvalue riferimento.
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 riferimento all'elemento Ith di a.
Original:
Const reference to the Ith element of a.
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[modifica] Eccezioni

noexcept specification:  
noexcept
  (dal C++11)

[modifica] Esempio

#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";
}

Output: 

(1, 2, 3)

[modifica] Vedi anche
accedere elemento specificato
Original:
access specified element
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(metodo pubblico) [modifica]
accedere elemento specificato con verifica dei limiti
Original:
access specified element with bounds checking
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(metodo pubblico) [modifica]
tupla accede elemento specificato
Original:
tuple accesses specified element
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(funzione di modello) [modifica]
(C++11)
accede a un elemento di una pair
Original:
accesses an element of a pair
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(funzione di modello) [modifica]
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