const struct case_ordering *);
bool case_ordering_add_var (struct case_ordering *,
- struct variable *, enum sort_direction);
+ const struct variable *, enum sort_direction);
size_t case_ordering_get_var_cnt (const struct case_ordering *);
-struct variable *case_ordering_get_var (const struct case_ordering *, size_t);
+const struct variable *case_ordering_get_var (const struct case_ordering *, size_t);
enum sort_direction case_ordering_get_direction (const struct case_ordering *,
size_t);
void case_ordering_get_vars (const struct case_ordering *,
- struct variable ***, size_t *);
+ const struct variable ***, size_t *);
#endif /* data/case-ordering.h */