`_stat` structure `st_mode` field constants

Syntax

#include <sys/stat.h>

These constants are used to indicate file type in the st_mode field of the _stat structure.

The bit mask constants are described below:

Constant	Meaning
`_S_IFMT`	File type mask
`_S_IFDIR`	Directory
`_S_IFCHR`	Character special (indicates a device if set)
`_S_IFREG`	Regular
`_S_IREAD`	Read permission, owner
`_S_IWRITE`	Write permission, owner
`_S_IEXEC`	Execute/search permission, owner