NAME

std::basic_string::rbegin, - std::basic_string::rbegin,

Synopsis

reverse_iterator rbegin(); (until C++11)
reverse_iterator rbegin() noexcept; (since C++11)
(until C++20)
constexpr reverse_iterator rbegin() noexcept; (since C++20)
const_reverse_iterator rbegin() const; (until
C++11)
(since
const_reverse_iterator rbegin() const C++11)
noexcept; (1) (until
C++20)
constexpr const_reverse_iterator rbegin() (2) (since
const noexcept; C++20)
(since
const_reverse_iterator crbegin() const C++11)
noexcept; (3) (until
C++20)
constexpr const_reverse_iterator crbegin() (since
const noexcept; C++20)

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

See also

rend returns a reverse iterator to the end
crend (public member function)
(C++11)
rbegin returns a reverse iterator to the beginning
crbegin (public member function of std::basic_string_view<CharT,Traits>)
(C++17)