[fs.enum.perms]

The enum class type perms is a bitmask type ([bitmask.types]) that specifies bitmask constants used to identify file permissions, with the meanings listed in Table 146 .

Table 146: Enum class perms [tab:fs.enum.perms]

🔗	Name	Value	POSIX	Definition or notes
🔗		(octal)	macro
🔗	none	0		There are no permissions set for the file.
🔗	owner_read	0400	S_IRUSR	Read permission, owner
🔗	owner_write	0200	S_IWUSR	Write permission, owner
🔗	owner_exec	0100	S_IXUSR	Execute/search permission, owner
🔗	owner_all	0700	S_IRWXU	Read, write, execute/search by owner; owner_read \| owner_write \| owner_exec
🔗	group_read	040	S_IRGRP	Read permission, group
🔗	group_write	020	S_IWGRP	Write permission, group
🔗	group_exec	010	S_IXGRP	Execute/search permission, group
🔗	group_all	070	S_IRWXG	Read, write, execute/search by group; group_read \| group_write \| group_exec
🔗	others_read	04	S_IROTH	Read permission, others
🔗	others_write	02	S_IWOTH	Write permission, others
🔗	others_exec	01	S_IXOTH	Execute/search permission, others
🔗	others_all	07	S_IRWXO	Read, write, execute/search by others; others_read \| others_write \| others_exec
🔗	all	0777		owner_all \| group_all \| others_all
🔗	set_uid	04000	S_ISUID	Set-user-ID on execution
🔗	set_gid	02000	S_ISGID	Set-group-ID on execution
🔗	sticky_bit	01000	S_ISVTX	Operating system dependent.
🔗	mask	07777		all \| set_uid \| set_gid \| sticky_bit
🔗	unknown	0xFFFF		The permissions are not known, such as when a file_status object is created without specifying the permissions

31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.8 Enumerations [fs.enum]

31.12.8.4 Enum class perms [fs.enum.perms]