...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Return a reverse iterator to the first character of the reversed container.
string::const_reverse_iterator
crbegin() const noexcept;
Returns the pointed-to character that corresponds to the last character
of the non-reversed container. If the container is empty, crend()
is returned.
Constant.
No-throw guarantee.