const_reverse_iterator crbegin() const noexcept;
Returns an iterator to the reverse-beginning; that is, the last element.
reverse iterator to the first element
No-throw guarantee: this member function never throws exceptions.
Constant.
??? example
The following code shows an example for `crbegin()`. ```cpp --8<-- "examples/crbegin.cpp" ``` Output: ```json --8<-- "examples/crbegin.output" ```