INTERFACE OS;

IMPORT File, OSError;
FROM Ctypes IMPORT int;

PROCEDURE IsDirectory (path: TEXT): BOOLEAN;

PROCEDURE Close (f: File.T;  modTime: LONGREAL;  path: TEXT) RAISES {OSError.E};

<*EXTERNAL OS__UTimes*>
PROCEDURE UTimes (path: TEXT;  time: LONGREAL): int;

END OS.