std::experimental::basic_string_view<CharT,Traits>:: rbegin, std::experimental::basic_string_view<CharT,Traits>:: crbegin

From cppreference.com
constexpr const_reverse_iterator rbegin ( ) const noexcept ;
(library fundamentals TS)
constexpr const_reverse_iterator crbegin ( ) const noexcept ;
(library fundamentals TS)

Returns a reverse iterator to the first character of the reversed view. It corresponds to the last character of the non-reversed view.

range-rbegin-rend.svg

Parameters

(none)

Return value

const_reverse_iterator to the first character

Complexity

Constant

See also

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