std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin (3) - Linux Manuals

std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin: std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin

NAME

std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin - std::basic_string<CharT,Traits,Allocator>::rbegin,std::basic_string<CharT,Traits,Allocator>::crbegin

Synopsis

reverse_iterator rbegin(); (until C++11)
reverse_iterator rbegin() noexcept; (since C++11)
const_reverse_iterator rbegin() const; (1) (until C++11)
const_reverse_iterator rbegin() const noexcept; (2) (since C++11)
const_reverse_iterator crbegin() const noexcept; (3) (since C++11)

Returns a reverse iterator to the first character of the reversed string. It corresponds to the last character of the non-reversed string.
 range-rbegin-rend.svg

Parameters

(none)

Return value

reverse iterator to the first character

Complexity

Constant

Example

// Run this code

  #include <iostream>
  #include <algorithm>
  #include <iterator>
  #include <string>

  int main()
  {
      std::string s("Exemplar!");
      *s.rbegin() = 'y';
      std::cout << s << '\n'; // "Exemplary"

      std::string c;
      std::copy(s.crbegin(), s.crend(), std::back_inserter(c));
      std::cout << c << '\n'; // "yralpmexE"
  }

Output:

  Exemplary
  yralpmexE