void psppire_dict_clear (PsppireDict *d);
/* Return the IDXth variable */
-struct variable * psppire_dict_get_variable (PsppireDict *d, gint idx);
+struct variable * psppire_dict_get_variable (const PsppireDict *d, gint idx);
/* Delete N variables beginning at FIRST */
void psppire_dict_delete_variables (PsppireDict *d, gint first, gint n);
void psppire_dict_replace_dictionary (PsppireDict *, struct dictionary *);
+void psppire_dict_set_weight_variable (PsppireDict *, struct variable *);
+struct variable * psppire_dict_get_weight_variable (const PsppireDict *);
+
G_END_DECLS