std::basic_string<CharT,Traits,Allocator>::rend, std::basic_string<CharT,Traits,Allocator>::crend
(1) | ||
reverse_iterator rend(); |
(until C++11) | |
reverse_iterator rend() noexcept; |
(since C++11) (until C++20) |
|
constexpr reverse_iterator rend() noexcept; |
(since C++20) | |
(2) | ||
const_reverse_iterator rend() const; |
(until C++11) | |
const_reverse_iterator rend() const noexcept; |
(since C++11) (until C++20) |
|
constexpr const_reverse_iterator rend() const noexcept; |
(since C++20) | |
(3) | ||
const_reverse_iterator crend() const noexcept; |
(since C++11) (until C++20) |
|
constexpr const_reverse_iterator crend() const noexcept; |
(since C++20) |
Returns a reverse iterator to the character following the last character of the reversed string. It corresponds to the character preceding the first character of the non-reversed string. This character acts as a placeholder, attempting to access it results in undefined behavior.
Parameters
(none).
Return value
reverse iterator to the character following the last character.
Complexity
Constant.
Example
#include <algorithm> #include <iostream> #include <iterator> #include <string> int main() { std::string s("A man, a plan, a canal: Panama"); { std::string c; std::copy(s.rbegin(), s.rend(), std::back_inserter(c)); std::cout << c <<'\n'; // "amanaP :lanac a ,nalp a ,nam A" } { std::string c; std::copy(s.crbegin(), s.crend(), std::back_inserter(c)); std::cout << c <<'\n'; // "amanaP :lanac a ,nalp a ,nam A" } }
Output:
amanaP :lanac a ,nalp a ,nam A amanaP :lanac a ,nalp a ,nam A
See also
(C++11)
|
returns a reverse iterator to the beginning (public member function) |
(C++17)
|
returns a reverse iterator to the end (public member function of std::basic_string_view<CharT,Traits> ) |
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