From the NannyMUD documentation

LAST CHANGE

2007-05-13

FUNCTION

NAME
        is_corpse - is the object a corpse?


LOCATION
	/obj/corpse

SYNTAX
	int is_corpse();

DESCRIPTION
	This function returns 1, and thus mark the object as a corpse. It
	should be defined by objects that are true corpses, i.e. that will
	handle all things a corpse should. This means basically corpse objects
	in the lib.


RETURN VALUES
	1 - marks the object as a corpse.