string::crend
Return a const reverse iterator to the character following the last character of the reversed container.
Synopsis
string::const_reverse_iterator
crend() const noexcept;Description
The pointed-to character corresponds to the character preceding the first character of the non-reversed container. The returned iterator only acts as a sentinel. Dereferencing it results in undefined behavior.
Complexity
Constant.
Exception Safety
No-throw guarantee.