std::basic_string_view<CharT,Traits>::rbegin, (3) - Linux Manuals

std::basic_string_view<CharT,Traits>::rbegin,: std::basic_string_view<CharT,Traits>::rbegin,

NAME

std::basic_string_view<CharT,Traits>::rbegin, - std::basic_string_view<CharT,Traits>::rbegin,

Synopsis

constexpr const_reverse_iterator rbegin() const noexcept;   (since C++17)
constexpr const_reverse_iterator crbegin() const noexcept;  (since C++17)

Returns a reverse iterator to the first character of the reversed view. It
corresponds to the last character of the non-reversed view.

range-rbegin-rend.svg

Parameters

(none)

Return value

const_reverse_iterator to the first character

Complexity

Constant

Example

// Run this code

 #include <algorithm>
 #include <iostream>
 #include <iterator>
 #include <string_view>

 int main()
 {
  std::ostream_iterator<char> out_it(std::cout);
  std::string_view str_view("abcdef");

  std::copy(str_view.rbegin(), std::next(str_view.rbegin(), 3), out_it);
  *out_it = '\n';

  std::copy(str_view.crbegin(), std::next(str_view.crbegin(), 3), out_it);
  *out_it = '\n';
 }

Output:

 fed
 fed