std::basic_string_view::rend, std::basic_string_view::crend

C++

Language

Headers

Freestanding and hosted implementations

Named requirements

Language support library

Concepts library (C++20)

Diagnostics library

Utilities library

Strings library

Containers library

Algorithms library

Iterators library

Numerics library

Input/output library

Localizations library

Regular expressions library (C++11)

Atomic operations library (C++11)

Thread support library (C++11)

Filesystem library (C++17)

Technical Specifications

Strings library

Null-terminated strings

Byte strings

Multibyte strings

Wide strings

Classes

basic_string

basic_string_view (C++17)

char_traits

std::basic_string_view

Member functions basic_string_view::basic_string_view basic_string_view::operator= Iterators basic_string_view::beginbasic_string_view::cbegin basic_string_view::endbasic_string_view::cend basic_string_view::rbeginbasic_string_view::crbegin basic_string_view::rendbasic_string_view::crend Element access basic_string_view::at basic_string_view::operator[] basic_string_view::front basic_string_view::back basic_string_view::data Capacity basic_string_view::sizebasic_string_view::length basic_string_view::max_size basic_string_view::empty Modifers basic_string_view::remove_prefix basic_string_view::remove_suffix basic_string_view::swap

Operations basic_string_view::copy basic_string_view::substr basic_string_view::compare basic_string_view::starts_with (C++20) basic_string_view::ends_with (C++20) basic_string_view::find basic_string_view::rfind basic_string_view::find_first_of basic_string_view::find_last_of basic_string_view::find_first_not_of basic_string_view::find_last_not_of Constants basic_string_view::npos Non-member functions operator==operator!=operator<operator>operator<=operator>= operator<< operator""sv Helper classes hash<std::string_view>hash<std::wstring_view>hash<std::u16string_view>hash<std::u32string_view>

constexpr const_reverse_iterator rend() const noexcept;		(since C++17)
constexpr const_reverse_iterator crend() const noexcept;		(since C++17)

Returns a reverse iterator to the character following the last character of the reversed view. It corresponds to the character preceding the first character of the non-reversed view. This character acts as a placeholder, attempting to access it results in undefined behavior.

Parameters

(none)

Return value

const_reverse_iterator to the character following the last character.

Complexity

Constant

Example

Run this code

#include <algorithm>
#include <iostream>
#include <iterator>
#include <string_view>

int main()
{
    std::ostream_iterator<char> out_it(std::cout);
    std::string_view str_view("abcdef");

    std::copy(str_view.rbegin(), str_view.rend(), out_it);
    *out_it = '\n';

    std::copy(str_view.crbegin(), str_view.crend(), out_it);
    *out_it = '\n';
}

Output:

fedcba
fedcba

See also

rbegincrbegin

returns a reverse iterator to the beginning (public member function)