std::basic_string<CharT,Traits,Allocator>::rend, std::basic_string<CharT,Traits,Allocator>::crend

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros (C++20)

Language support library

Concepts library (C++20)

Metaprogramming library (C++11)

Diagnostics library

General utilities library

Strings library

Containers library

Iterators library

Ranges library (C++20)

Algorithms library

Numerics library

Localizations library

Input/output library

Filesystem library (C++17)

Regular expressions library (C++11)

Concurrency support library (C++11)

Execution support library (C++26)

Technical specifications

Symbols index

External libraries

 

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

 

std::basic_string

Member functions basic_string::basic_string basic_string::~basic_string basic_string::operator= basic_string::assign basic_string::assign_range (C++23) basic_string::get_allocator Element access basic_string::at basic_string::operator[] basic_string::front (DR*) basic_string::back (DR*) basic_string::data basic_string::c_str basic_string::operator  basic_string_view (C++17) Iterators basic_string::beginbasic_string::cbegin (C++11) basic_string::endbasic_string::cend (C++11) basic_string::rbeginbasic_string::crbegin (C++11) basic_string::rendbasic_string::crend (C++11) Capacity basic_string::empty basic_string::sizebasic_string::length basic_string::max_size basic_string::reserve basic_string::capacity basic_string::shrink_to_fit (DR*) Modifiers basic_string::clear basic_string::insert basic_string::insert_range (C++23) basic_string::erase basic_string::push_back basic_string::pop_back (DR*) basic_string::append basic_string::append_range (C++23) basic_string::operator+= basic_string::replace basic_string::replace_with_range (C++23) basic_string::copy basic_string::resize basic_string::resize_and_overwrite (C++23)   basic_string::swap

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	(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

Run this code

#include <algorithm>
#include <iostream>
#include <iterator>
#include <string>
 
int main()
{
    std::string p("[A man, a plan, a canal: Panama]");
    std::string q;
 
    std::copy(p.crbegin(), p.crend(), std::back_inserter(q));
    std::cout << "q = " << q << '\n';
 
    std::copy(q.crbegin(), q.crend(), p.rbegin());
    std::cout << "p = " << p << '\n';
}

Output:

q = ]amanaP :lanac a ,nalp a ,nam A[
p = ]amanaP :lanac a ,nalp a ,nam A[

See also

rbegincrbegin (C++11)	returns a reverse iterator to the beginning (public member function)
rendcrend	returns a reverse iterator to the end (public member function of std::basic_string_view<CharT,Traits>)