std::get(std::array)

 

C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Contenitori libreria

array (C++11)

vector

deque

forward_list (C++11)

list

set

multiset

map

multimap

unordered_set (C++11)

unordered_multiset (C++11)

unordered_map (C++11)

unordered_multimap (C++11)

stack

queue

priority_queue

 

std::array

Membri funzioni 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 accesso 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

Iteratori 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::begin array::cbegin

array::end array::cend

array::rbegin array::crbegin

array::rend array::crend

Capacità 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

Modificatori 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

Non membri funzioni 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

Helper classi 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)	(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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Parametri

a

-

matrice i cui contenuti da estrarre 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.

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 Itha, 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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Eccezioni

noexcept specification:  

noexcept

  (dal C++11)

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)

Vedi anche

operator[]	accedere elemento specificato Original: access specified element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
at	accedere elemento specificato con verifica dei limiti 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. (metodo pubblico)
std::get(std::tuple)	tupla accede elemento specificato 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. (funzione di modello)
std::get(std::pair) (C++11)	accede a un elemento di una 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. (funzione di modello)