std::next

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C++ Standard Library
Iterator library
Defined in header <iterator>

template< class ForwardIterator >

ForwardIterator next( ForwardIterator it,

                      typename std::iterator_traits<ForwardIterator>::difference_type n = 1);
 (since C++11)

Return the nth successor of iterator it.

Equivalent to std::advance(it, n); return it;, that is, advances a copy of the iterator it.

Contents

[edit] Parameters

it - forward iterator
n - number of elements by which a copy of it should be advanced.

[edit] Return value

The nth successor of iterator it.

[edit] Example 

#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

[edit] See also

(C++11)
 decrement an iterator
(function)
advances an iterator by given distance
(function)
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