std::end

 

C++

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Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

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Localizzazione

Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Biblioteca Iterator

Primitive iteratori Original: Iterator primitives The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
iterator_traits
input_iterator_tag output_iterator_tag forward_iterator_tag bidirectional_iterator_tag random_access_iterator_tag
iterator
Adattatori iteratori Original: Iterator adaptors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
reverse_iterator
move_iterator (C++11) back_insert_iterator front_insert_iterator insert_iterator	make_move_iterator (C++11) back_inserter front_inserter inserter
Flusso iteratori Original: Stream iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Operazioni di iteratori Original: Iterator operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
advance
distance
prev (C++11)
next (C++11)
Intervallo accesso Original: Range access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
begin (C++11)
end (C++11)

 

Elemento definito nell'header <iterator>
template<class C > auto end( C& c )-> decltype(c.end());	(1)	(dal C++11)
template<class C > auto end(const C& c )-> decltype(c.end());	(2)	(dal C++11)
template<class T, size_t N > T* end( T (&array)[N]);	(3)	(dal C++11)

Restituisce un iteratore alla fine (cioè l'elemento dopo l'ultimo elemento) del c contenitore dato o array array.

Original:

Returns an iterator to the end (i.e. the element after the last element) of the given container c or array array.

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Parametri

c	-	un contenitore con un metodo end Original: a container with an end method The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
array	-	una matrice di tipo arbitrario Original: an array of arbitrary type 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

un iteratore alla fine di c o array. Si noti che l'estremità di un contenitore o di array è definito come l'elemento che segue l'ultimo elemento valido.

Original:

an iterator to the end of c or array. Note that the end of a container or array is defined as the element following the last valid element.

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Note

Oltre ad essere incluso nel <iterator>, std::end è garantito per essere disponibile se una qualsiasi delle seguenti intestazioni sono inclusi: <array>, <deque>, <forward_list>, <list>, <map>, <regex>, <set>, <string>, <unordered_map>, <unordered_set> e <vector>.

Original:

In addition to being included in <iterator>, std::end is guaranteed to become available if any of the following headers are included: <array>, <deque>, <forward_list>, <list>, <map>, <regex>, <set>, <string>, <unordered_map>, <unordered_set>, and <vector>.

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Specializzazioni

Specializzazioni personalizzate di std::end può essere previsto per le classi che non espongono un adeguato end() funzione membro, ma può essere iterato. Le specializzazioni sono già fornite dalla libreria standard:

Original:

Custom specializations of std::end may be provided for classes that do not expose a suitable end() member function, yet can be iterated. The following specializations are already provided by the standard library:

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std::end(std::initializer_list) (C++11)	specializzata std::end Original: specializes std::end 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::end(std::valarray) (C++11)	specializzata std::end Original: specializes std::end 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)

Esempio

#include <iostream>#include <vector>#include <iterator>#include <algorithm>   int main(){std::vector<int> v ={3, 1, 4};if(std::find(std::begin(v), std::end(v), 5)!= std::end(v)){std::cout<<"found a 5 in vector v!\n";}   int a[]={5, 10, 15};if(std::find(std::begin(a), std::end(a), 5)!= std::end(a)){std::cout<<"found a 5 in array a!\n";}}

Output:

found a 5 in array a!

Vedi anche

begin (C++11)	restituisce un iteratore all'inizio di un contenitore o matrice Original: returns an iterator to the beginning of a container or array The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione)