[fs.enum.file

This enum class specifies constants used to identify file types, with the meanings listed in Table 118 .

Table 118 — 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 Input/output library [input.output]