checked_iterator::difference_type
A type that provides the difference between two checked_iterators referring to elements within the same container.
typedef typename iterator_traits<_Iter>::difference_type difference_type;
Remarks
The checked_iterator difference type is the same as the iterator difference type.
For more information, see Checked Iterators.
Example
See checked_iterator::operator[] for an example of how to declare and use difference_type.
Requirements
Header: <iterator>
Namespace: std