std::basic_string_view::rend,std::basic_string_view::crend -
std::basic_string_view::rend,std::basic_string_view::crend
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.
range-rbegin-rend.svg
const_reverse_iterator to the character following the last
character.
// 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';
}
rbegin returns a reverse iterator to the beginning
crbegin (public member function)
(C++17)
rend returns a reverse iterator to the end
crend (public member function of
std::basic_string<CharT,Traits,Allocator>)
(C++11)