Showing content from https://timsong-cpp.github.io/cppwp/n4659/fs.enum below:
[fs.enum]
30 Input/output library [input.output] 30.10 File systems [filesystems] 30.10.29 Enumerations [fs.enum] 30.10.29.1 Enum path::format [fs.enum.path.format]
This enum specifies constants used to identify the format of the character sequence, with the meanings listed in Table 122.
Table
122
— Enum
path::format
Name Meaning native_format The native pathname format. generic_format The generic pathname format. auto_format The interpretation of the format of the character sequence is implementation-defined. The implementation may inspect the content of the character sequence to determine the format. [ Note: For POSIX-based systems, native and generic formats are equivalent and the character sequence should always be interpreted in the same way. — end note ] 30.10.29.2 Enum class file_type [fs.enum.file_type]
This enum class specifies constants used to identify file types, with the meanings listed in Table 123.
Table
123
— Enum class
file_type
Constant Meaning none The type of the file has not been determined or an error occurred while trying to determine the type. not_found Pseudo-type indicating the file was not found. [ Note: The file not being found is not considered an error while determining the type of a file. — end note ] regular Regular file directory Directory file symlink Symbolic link file block Block special file character Character special file fifo FIFO or pipe file socket Socket file implementation-defined Implementations that support file systems having file types in addition to the above file_type types shall supply implementation-defined file_type constants to separately identify each of those additional file types unknown The file exists but the type could not be determined 30.10.29.3 Enum class copy_options [fs.enum.copy.opts]
The enum class type copy_options is a bitmask type ([bitmask.types]) that specifies bitmask constants used to control the semantics of copy operations. The constants are specified in option groups with the meanings listed in Table 124. Constant none is shown in each option group for purposes of exposition; implementations shall provide only a single definition.
Table
124
— Enum class
copy_options
Option group controlling copy_file function effects for existing target files Constant Meaning none (Default) Error; file already exists. skip_existing Do not overwrite existing file, do not report an error. overwrite_existing Overwrite the existing file. update_existing Overwrite the existing file if it is older than the replacement file. Option group controlling copy function effects for sub-directories Constant Meaning none (Default) Do not copy sub-directories. recursive Recursively copy sub-directories and their contents. Option group controlling copy function effects for symbolic links Constant Meaning none (Default) Follow symbolic links. copy_symlinks Copy symbolic links as symbolic links rather than copying the files that they point to. skip_symlinks Ignore symbolic links. Option group controlling copy function effects for choosing the form of copying Constant Meaning none (Default) Copy content. directories_only Copy directory structure only, do not copy non-directory files. create_symlinks Make symbolic links instead of copies of files. The source path shall be an absolute path unless the destination path is in the current directory. create_hard_links Make hard links instead of copies of files. 30.10.29.4 Enum class perms [fs.enum.perms]
The enum class type perms is a bitmask type that specifies bitmask constants used to identify file permissions, with the meanings listed in Table 125.
Table
125
— Enum class
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 30.10.29.5 Enum class perm_options [fs.enum.perm.opts]
The enum class type perm_options is a bitmask type ([bitmask.types]) that specifies bitmask constants used to control the semantics of permissions operations, with the meanings listed in Table 126. The bitmask constants are bitmask elements. In Table 126 perm denotes a value of type perms passed to permissions.
Table
126
— Enum class
perm_options
Name Meaning replace permissions shall replace the file's permission bits with perm add permissions shall replace the file's permission bits with the bitwise OR of perm and the file's current permission bits. remove permissions shall replace the file's permission bits with the bitwise AND of the complement of perm and the file's current permission bits. nofollow permissions shall change the permissions of a symbolic link itself rather than the permissions of the file the link resolves to. 30.10.29.6 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 127.
Table
127
— Enum class
directory_options
Name Meaning none (Default) Skip directory symlinks, permission denied is an error. follow_directory_symlink Follow rather than skip directory symlinks. skip_permission_denied Skip directories that would otherwise result in permission denied.
RetroSearch is an open source project built by @garambo
| Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4