std::basic_string<CharT,Traits,Allocator>::rbegin, std::basic_string<CharT,Traits,Allocator>::crbegin
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std::basic_string
(C++23)
(DR*)
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basic_string::rbeginbasic_string::crbegin
(C++11)
(C++23)
(DR*)
(C++23)
(C++23)
(C++20)
(C++20)
(C++23)
(C++20)(C++20)
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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.
[edit] Parameters
(none)
[edit] Return value
Reverse iterator to the first character.
[edit] Complexity
Constant.
[edit] Notes
libc++ backports crbegin() to C++98 mode.
[edit] 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
[edit] See also
returns a reverse iterator to the beginning
(public member function of
(public member function of
std::basic_string_view<CharT,Traits>) [edit]