Std::make_reverse_iterator (3) Linux Manual Page

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 );            (until C++17)

template <class Iter>                                                   (since C++17)

constexpr std::reverse_iterator<Iter> make_reverse_iterator( Iter i );

make_reverse_iterator is a convenience function template that constructs a std::reverse_iterator for the given iterator i 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

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 <iostream>

#include <iterator>

#include <vector>

#include <algorithm>
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, ", "));
}

Output:

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

std::make_reverse_iterator (3) Linux Manual Page