31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.8 Enumerations [fs.enum]

31.12.8.6 Enum class directory_options [fs.enum.dir.opts]

The enum class type directory_options is a bitmask type ([bitmask.types]) that specifies bitmask constants used to identify directory traversal options, with the meanings listed in Table 148.
The constant none represents the empty bitmask; every other constant in the table represents a distinct bitmask element.
Table 148: Enum class directory_options[tab:fs.enum.dir.opts]
Name
Meaning
(Default) Skip directory symlinks, permission denied is an error.
Follow rather than skip directory symlinks.
Skip directories that would otherwise result in permission denied.