/* Data encoding. */
const char *dict_get_encoding (const struct dictionary *d);
-bool dict_id_is_valid (const struct dictionary *, const char *id,
- bool issue_error);
+char *dict_id_is_valid__ (const struct dictionary *, const char *id)
+ WARN_UNUSED_RESULT;
+bool dict_id_is_valid (const struct dictionary *, const char *id);
/* Internal variables. */
struct variable *dict_create_internal_var (int case_idx, int width);