Namespace
Varianti

std::next

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)
 
Defined in header <iterator>
template< class ForwardIt >

ForwardIt next( ForwardIt it,

                typename std::iterator_traits<ForwardIt>::difference_type n = 1 );
(dal C++11)
Restituisce il successore di nth it iteratore.
Original:
Return the nth successor of iterator it.
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Indice

[modifica] Parametri

it -
un iterater '
Original:
an iterater'
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n -
numero di elementi da avanzare
Original:
number of elements to advance
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Type requirements
-
ForwardIt must meet the requirements of ForwardIterator.

[modifica] Valore di ritorno

Il successore di nth it iteratore.
Original:
The nth successor of iterator it.
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[modifica] Possibile implementazione

template<class ForwardIt>
ForwardIt next(ForwardIt it, typename std::iterator_traits<ForwardIt>::difference_type n = 1)
{
    std::advance(it, n);
    return it;
}

[modifica] Esempio

#include <iostream>
#include <iterator>
#include <vector>
 
int main() 
{
    std::vector<int> v{ 3, 1, 4 };
 
    auto it = v.begin();
 
    auto nx = std::next(it, 2);
 
    std::cout << *it << ' ' << *nx << '\n';
}

Output:

3 4

[modifica] Vedi anche

(C++11)
decrementare un iteratore
Original:
decrement an iterator
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(funzione) [edit]
avanza di un iteratore per distanza data
Original:
advances an iterator by given distance
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(funzione) [edit]