std::move_iterator

 

C++

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Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

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)

 

std::istream_iterator

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.

move_iterator::move_iterator

move_iterator::operator=

move_iterator::base

move_iterator::operator* move_iterator::operator->

move_iterator::operator[]

move_iterator::operator++ move_iterator::operator+ move_iterator::operator+= move_iterator::operator-- move_iterator::operator- move_iterator::operator-=

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.

operator== operator!= operator< operator>

operator+

operator-

 

Elemento definito nell'header <iterator>
template<class Iterator> class move_iterator		(dal C++11)

std::move_iterator iteratore è un adattatore che si comporta esattamente come l'iteratore di fondo (che deve essere almeno un InputIterator), tranne che dereferenziazione converte il valore restituito dalla iteratore sottostante in un rvalue. Se questo iteratore viene utilizzato come un iteratore di input, l'effetto è che i valori vengono spostati da, anziché copiato da.

Original:

std::move_iterator is an iterator adaptor which behaves exactly like the underlying iterator (which must be at least an InputIterator), except that dereferencing converts the value returned by the underlying iterator into an rvalue. If this iterator is used as an input iterator, the effect is that the values are moved from, rather than copied from.

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Membri tipi

Membro tipo Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
iterator_type	Iterator
difference_type	std::iterator_traits<Iterator>::difference_type
pointer	Iterator
value_type	std::iterator_traits<Iterator>::value_type
iterator_category	std::iterator_traits<Iterator>::iterator_category
reference	value_type&&

Membri funzioni

(costruttore)	costruisce un nuovo adattatore iteratore Original: constructs a new iterator adaptor The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
operator=	assegna un altro iteratore Original: assigns another iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
base	accede l'iteratore sottostante Original: accesses the underlying iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
operator* operator->	accede alla punta-all'elemento Original: accesses the pointed-to 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)
operator[]	ottiene rvalue riferimento all'elemento indicizzati Original: obtains rvalue reference to indexed 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)
operator++ operator++(int) operator+= operator+ operator-- operator--(int) operator-= operator-	anticipi o decrementa l'iteratore Original: advances or decrements the iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)

Non membri funzioni

operator== operator!= operator< operator<= operator> operator>=	confronta i iteratori sottostanti Original: compares the underlying iterators 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)
operator+	avanza l'iteratore Original: advances the iterator 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)
operator-	calcola la distanza tra due schede di iteratore Original: computes the distance between two iterator adaptors 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 <algorithm>#include <vector>#include <iterator>#include <numeric>int main(){std::vector<std::string> v{"this", "is", "an", "example"};   std::cout<<"Old contents of the vector: ";for(auto& s : v)std::cout<<'"'<< s <<"\" ";   typedefstd::vector<std::string>::iterator iter_t;std::string concat =std::accumulate( std::move_iterator<iter_t>(v.begin()), std::move_iterator<iter_t>(v.end()), std::string());// Can be simplified with std::make_move_iterator   std::cout<<"\nConcatenated as string: "<< concat <<'\n'<<"New contents of the vector: ";for(auto& s : v)std::cout<<'"'<< s <<"\" ";std::cout<<'\n';}

Output:

Old contents of the vector: "this" "is" "an" "example" Concatenated as string: thisisanexample New contents of the vector: "" "" "" ""

Vedi anche

make_move_iterator (C++11)	crea un std::move_iterator di tipo derivato dalla tesi Original: creates a std::move_iterator of type inferred from the argument 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)