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

std::basic_string_view<CharT,Traits>::rend,std::basic_string_view<CharT,Traits>::crend: std::basic_string_view<CharT,Traits>::rend,std::basic_string_view<CharT,Traits>::crend

NAME

std::basic_string_view<CharT,Traits>::rend,std::basic_string_view<CharT,Traits>::crend - std::basic_string_view<CharT,Traits>::rend,std::basic_string_view<CharT,Traits>::crend

Synopsis

constexpr const_reverse_iterator rend() const noexcept; (since C++17)
constexpr const_reverse_iterator crend() const noexcept; (since C++17)

Returns a reverse iterator to the character following the last character of the reversed view. It corresponds to the character preceding the first character of the non-reversed view. This character acts as a placeholder, attempting to access it results in undefined behavior.
 range-rbegin-rend.svg

Parameters

(none)

Return value

const_reverse_iterator to the character following the last 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(), str_view.rend(), out_it);
      *out_it = '\n';

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

Output:

  fedcba
  fedcba