G.1.5 The Package Wide_Wide_Text_IO.Complex_IO
shall also provide the generic library package Wide_Wide_Text_IO.Complex_IO.
Its declaration is obtained from that of Text_IO.Complex_IO by systematically
replacing Text_IO by Wide_Wide_Text_IO and String by Wide_Wide_String;
the description of its behavior is obtained by additionally replacing
references to particular characters (commas, parentheses, etc.) by those
for the corresponding wide wide characters.