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Learn more about: <filesystem> enumerations | <filesystem> enumerations | 11/04/2016 |
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This topic documents the enums in the filesystem header.
Header: <experimental/filesystem>
Namespace: std::experimental::filesystem
An enumeration of bitmask values that is used with copy and copy_file functions to specify behavior.
enumclasscopy_options { none = 0, skip_existing = 1, overwrite_existing = 2, update_existing = 4, recursive = 8, copy_symlinks = 16, skip_symlinks = 32, directories_only = 64, create_symlinks = 128, create_hard_links = 256 };| Name | Description |
|---|---|
none | Perform the default behavior for the operation. |
skip_existing | Do not copy if the file already exists, do not report an error. |
overwrite_existing | Overwrite the file if it already exists. |
update_existing | Overwrite the file if it already exists and is older than the replacement. |
recursive | Recursively copy subdirectories and their contents. |
copy_symlinks | Copy symbolic links as symbolic links, instead of copying the files they point to. |
skip_symlinks | Ignore symbolic links. |
directories_only | Only iterate over directories, ignore files. |
create_symlinks | Make symbolic links instead of copying files. An absolute path must be used as the source path unless the destination is the current directory. |
create_hard_links | Make hard links instead of copying files. |
Specifies whether to follow symbolic links to directories or to ignore them.
enumclassdirectory_options { none = 0, follow_directory_symlink };| Name | Description |
|---|---|
none | Default behavior: ignore symbolic links to directories. Permission denied is an error. |
follow_directory_symlink | Treat symbolic links to directories as actual directories. |
An enumeration for file types. The supported values are regular, directory, not_found, and unknown.
enumclassfile_type { not_found = -1, none, regular, directory, symlink, block, character, fifo, socket, unknown };| Name | Value | Description |
|---|---|---|
not_found | -1 | Represents a file that does not exist. |
none | 0 | Represents a file that has no type attribute. (Not supported.) |
regular | 1 | Represents a conventional disk file. |
directory | 2 | Represents a directory. |
symlink | 3 | Represents a symbolic link. (Not supported.) |
block | 4 | Represents a block-special file on UNIX-based systems. (Not supported.) |
character | 5 | Represents a character-special file on UNIX-based systems. (Not supported.) |
fifo | 6 | Represents a FIFO file on UNIX-based systems. (Not supported.) |
socket | 7 | Represents a socket on UNIX based systems. (Not supported.) |
unknown | 8 | Represents a file whose status cannot be determined. |
Includes values replace, add, remove, and nofollow.
enumclassperm_options;Flags for file permissions. The supported values are essentially "readonly" and all. For a readonly file, none of the *_write bits are set. Otherwise the all bit (0x0777) is set.
enumclassperms {// names for permissions none = 0, owner_read = 0400, // S_IRUSR owner_write = 0200, // S_IWUSR owner_exec = 0100, // S_IXUSR owner_all = 0700, // S_IRWXU group_read = 040, // S_IRGRP group_write = 020, // S_IWGRP group_exec = 010, // S_IXGRP group_all = 070, // S_IRWXG others_read = 04, // S_IROTH others_write = 02, // S_IWOTH others_exec = 01, // S_IXOTH others_all = 07, // S_IRWXO all = 0777, set_uid = 04000, // S_ISUID set_gid = 02000, // S_ISGID sticky_bit = 01000, // S_ISVTX mask = 07777, unknown = 0xFFFF, add_perms = 0x10000, remove_perms = 0x20000, resolve_symlinks = 0x40000 };