30 Input/output library [input.output]

30.10 File systems [filesystems]

30.10.32 Class directory_­iterator [fs.class.directory_iterator]

30.10.32.2 directory_­iterator non-member functions [fs.dir.itr.nonmembers]

directory_iterator begin(directory_iterator iter) noexcept;

directory_iterator end(const directory_iterator&) noexcept;