-size_t dict_get_compacted_value_cnt (const struct dictionary *);
-int *dict_get_compacted_dict_index_to_case_index (const struct dictionary *);
-bool dict_compacting_would_shrink (const struct dictionary *);
-bool dict_compacting_would_change (const struct dictionary *);
-
-struct dict_compactor *dict_make_compactor (const struct dictionary *);
-void dict_compactor_compact (const struct dict_compactor *,
- struct ccase *, const struct ccase *);
-void dict_compactor_destroy (struct dict_compactor *);