std::filesystem::file_type

enum class file_type { none = /* unspecified */, not_found = /* unspecified */, regular = /* unspecified */, directory = /* unspecified */, symlink = /* unspecified */, block = /* unspecified */, character = /* unspecified */, fifo = /* unspecified */, socket = /* unspecified */, unknown = /* unspecified */, /* implementation-defined */ };

?

(since C++17)

none

indicates that the file status has not been evaluated yet, or an error occurred when evaluating it

not_found

indicates that the file was not found (this is not considered an error)

regular

a regular file

directory

a directory

symlink

a symbolic link

block

a block special file

character

a character special file

fifo

a FIFO (also known as pipe) file

socket

a socket file

implementation-defined

an additional implementation-defined constant for each additional file type supported by the implementation

unknown

the file exists but its type could not be determined