NAME¶

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

Synopsis¶

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

Notes¶

libc++ backports crbegin() to C++98 mode.

Example¶

// Run this code

#include <algorithm>
#include <iostream>
#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>)