[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 151 .

Table 151 — 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]