--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/ada/libgnat/a-wichun.adb	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,178 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--         A D A . W I D E _ C H A R A C T E R T S . U N I C O D E          --
+--                                                                          --
+--                                 B o d y                                  --
+--                                                                          --
+--          Copyright (C) 2005-2017, 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.      --
+--                                                                          --
+------------------------------------------------------------------------------
+
+package body Ada.Wide_Characters.Unicode is
+
+   package G renames System.UTF_32;
+
+   ------------------
+   -- Get_Category --
+   ------------------
+
+   function Get_Category (U : Wide_Character) return Category is
+   begin
+      return Category (G.Get_Category (Wide_Character'Pos (U)));
+   end Get_Category;
+
+   --------------
+   -- Is_Digit --
+   --------------
+
+   function Is_Digit (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Digit (Wide_Character'Pos (U));
+   end Is_Digit;
+
+   function Is_Digit (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Digit (G.Category (C));
+   end Is_Digit;
+
+   ---------------
+   -- Is_Letter --
+   ---------------
+
+   function Is_Letter (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Letter (Wide_Character'Pos (U));
+   end Is_Letter;
+
+   function Is_Letter (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Letter (G.Category (C));
+   end Is_Letter;
+
+   ------------------------
+   -- Is_Line_Terminator --
+   ------------------------
+
+   function Is_Line_Terminator (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Line_Terminator (Wide_Character'Pos (U));
+   end Is_Line_Terminator;
+
+   -------------
+   -- Is_Mark --
+   -------------
+
+   function Is_Mark (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Mark (Wide_Character'Pos (U));
+   end Is_Mark;
+
+   function Is_Mark (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Mark (G.Category (C));
+   end Is_Mark;
+
+   --------------------
+   -- Is_Non_Graphic --
+   --------------------
+
+   function Is_Non_Graphic (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Non_Graphic (Wide_Character'Pos (U));
+   end Is_Non_Graphic;
+
+   function Is_Non_Graphic (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Non_Graphic (G.Category (C));
+   end Is_Non_Graphic;
+
+   --------------
+   -- Is_Other --
+   --------------
+
+   function Is_Other (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Other (Wide_Character'Pos (U));
+   end Is_Other;
+
+   function Is_Other (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Other (G.Category (C));
+   end Is_Other;
+
+   --------------------
+   -- Is_Punctuation --
+   --------------------
+
+   function Is_Punctuation (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Punctuation (Wide_Character'Pos (U));
+   end Is_Punctuation;
+
+   function Is_Punctuation (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Punctuation (G.Category (C));
+   end Is_Punctuation;
+
+   --------------
+   -- Is_Space --
+   --------------
+
+   function Is_Space (U : Wide_Character) return Boolean is
+   begin
+      return G.Is_UTF_32_Space (Wide_Character'Pos (U));
+   end Is_Space;
+
+   function Is_Space (C : Category) return Boolean is
+   begin
+      return G.Is_UTF_32_Space (G.Category (C));
+   end Is_Space;
+
+   -------------------
+   -- To_Lower_Case --
+   -------------------
+
+   function To_Lower_Case
+     (U : Wide_Character) return Wide_Character
+   is
+   begin
+      return
+        Wide_Character'Val
+          (G.UTF_32_To_Lower_Case (Wide_Character'Pos (U)));
+   end To_Lower_Case;
+
+   -------------------
+   -- To_Upper_Case --
+   -------------------
+
+   function To_Upper_Case
+     (U : Wide_Character) return Wide_Character
+   is
+   begin
+      return
+        Wide_Character'Val
+          (G.UTF_32_To_Upper_Case (Wide_Character'Pos (U)));
+   end To_Upper_Case;
+
+end Ada.Wide_Characters.Unicode;