NAME¶

std::make_reverse_iterator - std::make_reverse_iterator

Synopsis¶

Defined in header <iterator>
template< class Iter > (since C++14)
std::reverse_iterator<Iter> make_reverse_iterator( Iter i (constexpr since C++17)
);

make_reverse_iterator is a convenience function template that constructs a
std::reverse_iterator for the given iterator i (which must be a
LegacyBidirectionalIterator) with the type deduced from the type of the argument.

Parameters¶

i - iterator to be converted to reverse iterator

Return value¶

A std::reverse_iterator constructed from i.

Notes¶

Feature-test macro Value Std Feature
__cpp_lib_make_reverse_iterator 201402L (C++14) std::make_reverse_iterator

Possible implementation¶

template<class Iter>
constexpr std::reverse_iterator<Iter> make_reverse_iterator(Iter i)
{
return std::reverse_iterator<Iter>(i);
}

Example¶

// Run this code

#include <algorithm>
#include <iostream>
#include <iterator>
#include <vector>

int main()
{
std::vector<int> v{1, 3, 10, 8, 22};

std::sort(v.begin(), v.end());
std::copy(v.begin(), v.end(), std::ostream_iterator<int>(std::cout, ", "));
std::cout << '\n';

std::copy(std::make_reverse_iterator(v.end()),
std::make_reverse_iterator(v.begin()),
std::ostream_iterator<int>(std::cout, ", "));
std::cout << '\n';
}

Output:¶

1, 3, 8, 10, 22,
22, 10, 8, 3, 1,

See also¶

reverse_iterator iterator adaptor for reverse-order traversal
(class template)
rbegin returns a reverse iterator to the beginning of a container or array
crbegin (function template)
(C++14)
rend returns a reverse end iterator for a container or array
crend (function template)
(C++14)