785:/std/heap.c (/std/heap.c)
(int) add_prop_obj_i_volume(mixed val)
/*
 * Function name: add_prop_obj_i_volume
 * Description:   Hook to avoid wrong settings of OBJ_I_VOLUME in a heap
 * Arguments:     val - The value OBJ_I_VOLUME is intended to be set to
 * Returns:       1 - If OBJ_I_VOLUME shouldn't get this new setting.
 */
