Path iterators iterate over the elements of the pathname in the generic format.

A path​::​iterator is a constant iterator meeting all the requirements of a bidirectional iterator except that, for dereferenceable iterators a and b of type path​::​iterator with a == b, there is no requirement that *a and *b are bound to the same object.

Its value_type is path.

Calling any non-const member function of a path object invalidates all iterators referring to elements of that object.

For the elements of the pathname in the generic format, the forward traversal order is as follows:

• [Note 1:

  It is possible that the use of the generic format is needed to ensure correct lexicographical comparison.

  — end note]

• Each successive filename element, if present.

The backward traversal order is the reverse of forward traversal.

Returns: An iterator for the first present element in the traversal list above.

If no elements are present, the end iterator.

Returns: The end iterator.