-void case_to_values (const struct ccase *, union value *, size_t);
-void case_from_values (struct ccase *,
- const union value *, size_t);
+void case_copy_out (const struct ccase *,
+ size_t start_idx, union value *, size_t value_cnt);
+void case_copy_in (struct ccase *,
+ size_t start_idx, const union value *, size_t value_cnt);