New Language: Ada

From-SVN: r45957

1 files changed, 84 insertions, 0 deletions

diff --git a/gcc/ada/s-wwdenu.ads b/gcc/ada/s-wwdenu.ads
new file mode 100644
index 0000000..e890079
--- /dev/null
+++ b/gcc/ada/s-wwdenu.ads
@@ -0,0 +1,84 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                         GNAT RUN-TIME COMPONENTS                         --
+--                                                                          --
+--                      S Y S T E M . W W D _ E N U M                       --
+--                                                                          --
+--                                 S p e c                                  --
+--                                                                          --
+--                            $Revision: 1.8 $
+--                                                                          --
+--          Copyright (C) 1992-2000 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 2,  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.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNAT;  see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- As a special exception,  if other files  instantiate  generics from this --
+-- unit, or you link  this unit with other files  to produce an executable, --
+-- this  unit  does not  by itself cause  the resulting  executable  to  be --
+-- covered  by the  GNU  General  Public  License.  This exception does not --
+-- however invalidate  any other reasons why  the executable file  might be --
+-- covered by the  GNU Public License.                                      --
+--                                                                          --
+-- GNAT was originally developed  by the GNAT team at  New York University. --
+-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This package contains the routine used for Enumeration_Type'Wide_Width
+
+with System.WCh_Con;
+
+package System.WWd_Enum is
+pragma Pure (WWd_Enum);
+
+   function Wide_Width_Enumeration_8
+     (Names   : String;
+      Indexes : System.Address;
+      Lo, Hi  : Natural;
+      EM      : System.WCh_Con.WC_Encoding_Method)
+      return    Natural;
+   --  Used to compute Enum'Wide_Width where Enum is an enumeration subtype
+   --  other than those defined in package Standard. Names is a string with
+   --  a lower bound of 1 containing the characters of all the enumeration
+   --  literals concatenated together in sequence. Indexes is the address
+   --  of an array of type array (0 .. N) of Natural_8, where N is the
+   --  number of enumeration literals in the type. The Indexes values are
+   --  the starting subscript of each enumeration literal, indexed by Pos
+   --  values, with an extra entry at the end containing Names'Length + 1.
+   --  The reason that Indexes is passed by address is that the actual type
+   --  is created on the fly by the expander.
+   --
+   --  Lo and Hi are the Pos values of the lower and upper bounds of the
+   --  subtype. The result is the value of Width, i.e. the maximum value
+   --  of the length of any enumeration literal in the given range. The
+   --  fifth parameter, EM, is the wide character encoding method used in
+   --  the Names table.
+
+   function Wide_Width_Enumeration_16
+     (Names   : String;
+      Indexes : System.Address;
+      Lo, Hi  : Natural;
+      EM      : System.WCh_Con.WC_Encoding_Method)
+      return    Natural;
+   --  Identical to Wide_Width_Enumeration_8 except that it handles types
+   --  using array (0 .. Num) of Natural_16 for the Indexes table.
+
+   function Wide_Width_Enumeration_32
+     (Names   : String;
+      Indexes : System.Address;
+      Lo, Hi  : Natural;
+      EM      : System.WCh_Con.WC_Encoding_Method)
+      return    Natural;
+   --  Identical to Wide_Width_Enumeration_8 except that it handles types
+   --  using array (0 .. Num) of Natural_32 for the Indexes table.
+
+end System.WWd_Enum;