908:/std/object.c (/std/object.c)
(void) enter_inv(object ob, object old)
/*
 * Function name: enter_inv
 * Description  : This function is called each time an object enters the
 *                inventory of this object. If you mask it, be sure that
 *                you _always_ call the ::enter_inv(ob, old) function.
 * Arguments    : object ob  - the object entering our inventory.
 *                object old - wherever 'ob' came from. This can be 0.
 */
