obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 130 insertions, 0 deletions

diff --git a/gcc/ada/s-wwdwch.adb b/gcc/ada/s-wwdwch.adb
new file mode 100644
index 000000000..001680ef5
--- /dev/null
+++ b/gcc/ada/s-wwdwch.adb
@@ -0,0 +1,130 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                     S Y S T E M . W W D _ W C H A R                      --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNAT is free software;  you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
+-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
+--                                                                          --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception,   --
+-- version 3.1, as published by the Free Software Foundation.               --
+--                                                                          --
+-- You should have received a copy of the GNU General Public License and    --
+-- a copy of the GCC Runtime Library Exception along with this program;     --
+-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
+-- <http://www.gnu.org/licenses/>.                                          --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+with Interfaces; use Interfaces;
+
+with System.WWd_Char;
+
+package body System.Wwd_WChar is
+
+   ------------------------------------
+   -- Wide_Wide_Width_Wide_Character --
+   ------------------------------------
+
+   --  This is the case where we are talking about the Wide_Wide_Image of
+   --  a Wide_Character, which is always the same character sequence as the
+   --  Wide_Image of the same Wide_Character.
+
+   function Wide_Wide_Width_Wide_Character
+     (Lo, Hi : Wide_Character) return Natural
+   is
+   begin
+      return Wide_Width_Wide_Character (Lo, Hi);
+   end Wide_Wide_Width_Wide_Character;
+
+   ------------------------------------
+   -- Wide_Wide_Width_Wide_Wide_Char --
+   ------------------------------------
+
+   function Wide_Wide_Width_Wide_Wide_Char
+     (Lo, Hi : Wide_Wide_Character) return Natural
+   is
+      LV : constant Unsigned_32 := Wide_Wide_Character'Pos (Lo);
+      HV : constant Unsigned_32 := Wide_Wide_Character'Pos (Hi);
+
+   begin
+      --  Return zero if empty range
+
+      if LV > HV then
+         return 0;
+
+      --  Return max value (12) for wide character (Hex_hhhhhhhh)
+
+      elsif HV > 255 then
+         return 12;
+
+      --  If any characters in normal character range, then use normal
+      --  Wide_Wide_Width attribute on this range to find out a starting point.
+      --  Otherwise start with zero.
+
+      else
+         return
+           System.WWd_Char.Wide_Wide_Width_Character
+             (Lo => Character'Val (LV),
+              Hi => Character'Val (Unsigned_32'Min (255, HV)));
+      end if;
+   end Wide_Wide_Width_Wide_Wide_Char;
+
+   -------------------------------
+   -- Wide_Width_Wide_Character --
+   -------------------------------
+
+   function Wide_Width_Wide_Character
+     (Lo, Hi : Wide_Character) return Natural
+   is
+      LV : constant Unsigned_32 := Wide_Character'Pos (Lo);
+      HV : constant Unsigned_32 := Wide_Character'Pos (Hi);
+
+   begin
+      --  Return zero if empty range
+
+      if LV > HV then
+         return 0;
+
+      --  Return max value (12) for wide character (Hex_hhhhhhhh)
+
+      elsif HV > 255 then
+         return 12;
+
+      --  If any characters in normal character range, then use normal
+      --  Wide_Wide_Width attribute on this range to find out a starting point.
+      --  Otherwise start with zero.
+
+      else
+         return
+           System.WWd_Char.Wide_Width_Character
+             (Lo => Character'Val (LV),
+              Hi => Character'Val (Unsigned_32'Min (255, HV)));
+      end if;
+   end Wide_Width_Wide_Character;
+
+   ------------------------------------
+   -- Wide_Width_Wide_Wide_Character --
+   ------------------------------------
+
+   function Wide_Width_Wide_Wide_Character
+     (Lo, Hi : Wide_Wide_Character) return Natural
+   is
+   begin
+      return Wide_Wide_Width_Wide_Wide_Char (Lo, Hi);
+   end Wide_Width_Wide_Wide_Character;
+
+end System.Wwd_WChar;