end loop;

      Digit := Value (Input (Offset));
      Finished := False;
      Offset := Offset + 1;
   end Next_Digit_Or_End;


   function Symbol_Count (Input : Ada.Streams.Stream_Element_Array)
     return Ada.Streams.Stream_Element_Count
   is
      Result : Ada.Streams.Stream_Element_Count := 0;
   begin
      for S of Input loop
         if S in Base_64_Symbol then
            Result := Result + 1;
         end if;
      end loop;

      return Result;
   end Symbol_Count;

end Natools.Smaz_Implementations.Base_64_Tools;