------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUNTIME COMPONENTS                          --
--                                                                          --
--                       S Y S T E M . I M G _ W I U                        --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--                            $Revision: 1.1 $                              --
--                                                                          --
--           Copyright (c) 1992,1993,1994 NYU, All Rights Reserved          --
--                                                                          --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software  Foundation; either version 2, or (at your option) any --
-- later version.  The GNAT library is distributed in the hope that it will --
-- be useful, but WITHOUT ANY WARRANTY;  without even  the implied warranty --
-- of MERCHANTABILITY  or  FITNESS FOR  A PARTICULAR PURPOSE.  See the  GNU --
-- Library  General  Public  License for  more  details.  You  should  have --
-- received  a copy of the GNU  Library  General Public License  along with --
-- the GNAT library;  see the file  COPYING.LIB.  If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.        --
--                                                                          --
------------------------------------------------------------------------------

--  Contains the routine for computing the image  of signed and unsigned
--  integers whose size <= Integer'Size for use by Text_Io.Integer_Io,
--  Text_Io.Modular_Io, and the Img attribute when a width is given.

with System.Unsigned_Types;

package System.Img_WIU is
pragma Preelaborate (Img_WIU);

   procedure Set_Image_Width_Integer
     (V : Integer;
      W : Integer;
      S : out String;
      P : in out Natural);
   --  Sets the signed image of V in decimal format, starting at S (P + 1),
   --  updating P to point to the last character stored. The image includes
   --  a leading minus sign if necessary, but no leading spaces unless W is
   --  positive, in which case leading spaces are output if necessary to ensure
   --  that the output string is no less than W characters long. The caller
   --  promises that the buffer is large enough and no check is made for this.
   --  Constraint_Error will not necessarily be raised if this is violated,
   --  since it is perfectly valid to compile this unit with checks off.

   procedure Set_Image_Width_Unsigned
     (V : System.Unsigned_Types.Unsigned;
      W : Integer;
      S : out String;
      P : in out Natural);
   --  Sets the unsigned image of V in decimal format, starting at S (P + 1),
   --  updating P to point to the last character stored. The image includes no
   --  leading spaces unless W is positive, in which case leading spaces are
   --  output if necessary to ensure that the output string is no less than
   --  W characters long. The caller promises that the buffer is large enough
   --  and no check is made for this. Constraint_Error will not necessarily be
   --  raised if this is violated, since it is perfectly valid to compile this
   --  unit with checks off.

end System.Img_WIU;
