cbegin overloads
Declared in <bslstl_unorderedset.h>
Return an iterator providing non-modifiable access to the first value_type object in the sequence of value_type objects maintained by this set, or the cend iterator if this set is empty.
const_iterator
cbegin() const noexcept;Return a local iterator providing non-modifiable access to the first value_type object (in the sequence of value_type objects) of the bucket having the specified index in the array of buckets maintained by this set, or the cend(index) otherwise.
const_local_iterator
cbegin(size_type index) const;