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std::back_insert_iterator

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C++
 
Biblioteca Iterator
Primitive iteratori
Original:
Iterator primitives
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iterator_traits
input_iterator_tag
output_iterator_tag
forward_iterator_tag
bidirectional_iterator_tag
random_access_iterator_tag
iterator
Adattatori iteratori
Original:
Iterator adaptors
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reverse_iterator
Flusso iteratori
Original:
Stream iterators
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istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Operazioni di iteratori
Original:
Iterator operations
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advance
distance
prev(C++11)
next(C++11)
Intervallo accesso
Original:
Range access
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begin(C++11)
end(C++11)
 
std::back_insert_iterator
Membri funzioni
Original:
Member functions
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back_insert_iterator::back_insert_iterator
back_insert_iterator::operator=
back_insert_iterator::operator*
back_insert_iterator::operator++
back_insert_iterator::operator++(int)
 
Elemento definito nell'header <iterator>
template< class Container >

class back_insert_iterator : public std::iterator< std::output_iterator_tag,

                                                   void,void,void,void >
std::back_insert_iterator è un OutputIterator che aggiunge a un contenitore con cui è stato costruito, utilizzando il contenitore funzione membro push_back() ogni volta che l'iteratore (se referenziato o meno) è assegnato. Incremento del std::back_insert_iterator è un no-op.
Original:
std::back_insert_iterator is an OutputIterator that appends to a container for which it was constructed, using the container's push_back() member function whenever the iterator (whether dereferenced or not) is assigned to. Incrementing the std::back_insert_iterator is a no-op.
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Indice

[modifica] Membri tipi

Membro tipo
Original:
Member type
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 Definition
container_type Container

[modifica] Membri funzioni

Template:cpp/iterator/inserter/dsc operator++
costruisce un nuovo back_insert_iterator
Original:
constructs a new back_insert_iterator
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(metodo pubblico) [modifica]
inserisce un oggetto nel contenitore associato
Original:
inserts an object into the associated container
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(metodo pubblico) [modifica]
no-op
(metodo pubblico) [modifica]

[modifica] Membri oggetti

Persona
Original:
Member name
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 Definition
container (protetto)
un puntatore di tipo Container*
Original:
a pointer of type Container*
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Inherited from std::iterator

Member types

Membro tipo
Original:
Member type
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 Definition
value_type void
difference_type void
pointer void
reference void
iterator_category std::output_iterator_tag

[modifica] Esempio

#include <iostream>
#include <iterator>
#include <algorithm>
#include <cstdlib>
int main()
{
    std::vector<int> v;
    std::generate_n(std::back_insert_iterator<std::vector<int>>(v), // can be simplified
                    10, [](){return std::rand()%10;});        // with std::back_inserter
    for(int n : v)
        std::cout << n << ' ';
    std::cout << '\n';
}

Output: 

3 6 7 5 3 5 6 2 9 1

[modifica] Vedi anche
crea un std::back_insert_iterator di tipo derivato dalla tesi
Original:
creates a std::back_insert_iterator of type inferred from the argument
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(funzione di modello) [modifica]
Adattatore iteratore per l'inserimento nella parte anteriore di un contenitore
Original:
iterator adaptor for insertion at the front of a container
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(classe template) [modifica]
Adattatore iteratore per l'inserimento in un contenitore
Original:
iterator adaptor for insertion into a container
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(classe template) [modifica]
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