-void mv_peek_range (const struct missing_values *, double *low, double *high);
-
-bool mv_is_resizable (struct missing_values *, int width);
-void mv_resize (struct missing_values *, int width);
-
-typedef bool is_missing_func (const struct missing_values *,
- const union value *);
-
-/* Is a value system or user missing? */
-bool mv_is_value_missing (const struct missing_values *, const union value *);
-bool mv_is_num_missing (const struct missing_values *, double);
-bool mv_is_str_missing (const struct missing_values *, const char[]);
-
-/* Is a value user missing? */
-bool mv_is_value_user_missing (const struct missing_values *,
- const union value *);
-bool mv_is_num_user_missing (const struct missing_values *, double);
-bool mv_is_str_user_missing (const struct missing_values *, const char[]);
-
-/* Is a value system missing? */
-bool mv_is_value_system_missing (const struct missing_values *,
- const union value *);