gboolean psppire_case_file_insert_values (PsppireCaseFile *cf, gint n_values, gint where);
-struct case_ordering;
+struct subcase;
-void psppire_case_file_sort (PsppireCaseFile *cf, struct case_ordering *);
+void psppire_case_file_sort (PsppireCaseFile *cf, const struct subcase *);
gboolean psppire_case_file_get_case (const PsppireCaseFile *cf,
casenumber casenum,