public member function
const_reverse_iterator crbegin() const noexcept;
Return const_reverse_iterator to reverse beginning
Returns a const_reverse_iterator pointing to the last element in the container (i.e., its reverse beginning).
A const_reverse_iterator to the reverse beginning 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 const_reverse_iterator to reverse end (public member function)
- Return iterator to beginning (public member function)
- Return reverse iterator to reverse beginning (public member function)