FILE
	/usr/common/lib/exit.c

NAME
	is_open - query whether exit is open

PROTOTYPE
	int is_open(void)

CALLED BY
	Anybody

DESCRIPTION
	Returns true if the object is open, false otherwise.

	This function isn't access-protected.  You should access-protect
	your version of this and all other inherited functions, including
	upgraded() and destructed().

RETURN VALUE
	Whether the object is open.

ERRORS
	Usually none.

SEE ALSO
	is_container, is_openable, is_locked