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1 ------------------------------------------------------------------------------
2 -- --
3 -- GNAT RUNTIME COMPONENTS --
4 -- --
5 -- S Y S T E M . W W D _ C H A R --
6 -- --
7 -- B o d y --
8 -- --
9 -- Copyright (C) 1992-2005 Free Software Foundation, Inc. --
10 -- --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
21 -- --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
28 -- --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
31 -- --
32 ------------------------------------------------------------------------------
34 package body System.WWd_Char is
36 --------------------------
37 -- Wide_Width_Character --
38 --------------------------
40 function Wide_Width_Character (Lo, Hi : Character) return Natural is
41 W : Natural;
43 begin
44 W := 0;
45 for C in Lo .. Hi loop
46 declare
47 S : constant Wide_String := Character'Wide_Image (C);
48 begin
49 W := Natural'Max (W, S'Length);
50 end;
51 end loop;
53 return W;
54 end Wide_Width_Character;
56 -------------------------------
57 -- Wide_Wide_Width_Character --
58 -------------------------------
60 function Wide_Wide_Width_Character (Lo, Hi : Character) return Natural is
61 W : Natural;
63 begin
64 W := 0;
65 for C in Lo .. Hi loop
66 declare
67 S : constant Wide_Wide_String := Character'Wide_Wide_Image (C);
68 begin
69 W := Natural'Max (W, S'Length);
70 end;
71 end loop;
73 return W;
74 end Wide_Wide_Width_Character;
76 end System.WWd_Char;