public member function
const_reverse_iterator crend() const noexcept;
Return const_reverse_iterator to reverse end
Returns a const_reverse_iterator pointing to the theoretical element preceding the first element in the container (which is considered its reverse end).
A const_reverse_iterator to the reverse end of the sequence.
Member type const_reverse_iterator is a reverse bidirectional iterator type that points to a const element (see map member types).
int main ()
mymap['b'] = 100;
mymap['a'] = 200;
mymap['c'] = 300;
std::cout << "mymap backwards:";
for (auto rit = mymap.crbegin(); rit != mymap.crend(); ++rit)
std::cout << " [" << rit->first << ':' << rit->second << ']';
std::cout << '\n';
mymap backwards: [c:300] [b:100] [a:200]
The container is accessed.
No contained elements are accessed by the call, but the iterator returned can be used to access them. Concurrently accessing or modifying different elements is safe.
No-throw guarantee: this member function never throws exceptions.
The copy construction or assignment of the returned iterator is also guaranteed to never throw.
- Return iterator to end (public member function)
- Return const_reverse_iterator to reverse beginning (public member function)
- Return reverse iterator to reverse end (public member function)