public member function
<set>
std::set::crbegin
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).
Return Value
A const_reverse_iterator to the reverse beginning of the sequence.
Member type const_reverse_iterator is a bidirectional iterator type that points to a const element.
Example
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| // set::crbegin/crend #include <iostream> #include <set> int main () { std::set<int> myset = {50,20,60,10,25}; std::cout << "myset backwards:"; for (auto rit=myset.crbegin(); rit != myset.crend(); ++rit) std::cout << ' ' << *rit; std::cout << '\n'; return 0; }
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Output:
myset backwards: 60 50 25 20 10 |
Iterator validity
No changes.
Data races
The container is accessed.
Concurrently accessing the elements of a set is safe.
Exception safety
No-throw guarantee: this member function never throws exceptions.
The copy construction or assignment of the returned iterator is also guaranteed to never throw.
See also
- set::begin
- Return iterator to beginning (public member function)
- set::crend
- Return const_reverse_iterator to reverse end (public member function)
- set::rbegin
- Return reverse iterator to reverse beginning (public member function)