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std::inserter

Da cppreference.com.
< cpp‎ | iterator

 
 
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)
 
Elemento definito nell'header <iterator>
template< class Container >
std::insert_iterator<Container> inserter( Container& c, typename Container::iterator i );
inserter è un modello di funzione di convenienza che costruisce un std::insert_iterator c per il contenitore e il suo i iteratore con il tipo dedotto dal tipo dell'argomento.
Original:
inserter is a convenience function template that constructs a std::insert_iterator for the container c and its iterator i with the type deduced from the type of the argument.
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Indice

[modifica] Parametri

c -
contenitore che supporta un'operazione insert
Original:
container that supports a insert operation
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i -
iteratore in c indica la posizione di inserimento
Original:
iterator in c indicating the insertion position
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[modifica] Valore di ritorno

Un std::insert_iterator che può essere utilizzato per inserire elementi nel c contenitore nella posizione indicata da i.
Original:
A std::insert_iterator which can be used to insert elements into the container c at the position indicated by i.
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[modifica] Possibile implementazione

template< class Container >
std::insert_iterator<Container> inserter( Container& c, typename Container::iterator i )
{
    return std::insert_iterator<Container>(c, i );
}

[modifica] Esempio

#include <iostream>
#include <list>
#include <algorithm>
#include <iterator>
 
int main()
{
    std::list<int> l{1,2,3,4,5,6,7,8,9,10};
    std::fill_n(std::inserter(l, std::next(l.begin())), 3, -1);
    for (int n : l) {
        std::cout << n << ' ';
    }
}

Output:

1 -1 -1 -1 2 3 4 5 6 7 8 9 10

[modifica] Vedi anche

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