std::next

 

C++

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Iterator library

Iterator primitives
iterator_traits
input_iterator_tag output_iterator_tag forward_iterator_tag bidirectional_iterator_tag random_access_iterator_tag
iterator
Iterator adaptors
reverse_iterator
move_iterator (C++11) back_insert_iterator front_insert_iterator insert_iterator	make_move_iterator (C++11) back_inserter front_inserter inserter
Stream iterators
istream_iterator
ostream_iterator
istreambuf_iterator
ostreambuf_iterator
Iterator operations
advance
distance
prev (C++11)
next (C++11)
Range access
begin (C++11)
end (C++11)

 

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.

Parameters

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

Return value

The nth successor of iterator it.

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

See also

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