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Showing content from https://en.cppreference.com/w/cpp/language/../string/../named_req/../string/basic_string/rend.html below:

std::basic_string<CharT,Traits,Allocator>::rend, std::basic_string<CharT,Traits,Allocator>::crend - cppreference.com

reverse_iterator rend();

(1) (noexcept since C++11)
(constexpr since C++20)

const_reverse_iterator rend() const;

(2) (noexcept since C++11)
(constexpr since C++20)

const_reverse_iterator crend() const noexcept;

(3) (since C++11)
(constexpr 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.

[edit] Parameters

(none)

[edit] Return value

Reverse iterator to the character following the last character.

[edit] Complexity

Constant.

[edit] Notes

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

[edit] Example

Output:

q = ]amanaP :lanac a ,nalp a ,nam A[
p = ]amanaP :lanac a ,nalp a ,nam A[
[edit] See also returns a reverse iterator to the beginning
(public member function) [edit] returns a reverse iterator to the end
(public member function of std::basic_string_view<CharT,Traits>) [edit]

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