Regress this iterator and return a copy of its prior value.
Regress this iterator to the previous valid data element, and return by value the value of this iterator before it was decremented. If there is no preceding data element, the value of reverse_iterator(*this) will be rend().
by value the value of this iterator before it was decremented
| Name | Description |
|---|---|
| postfix | unused parameter distinguishing the postfix operator |