------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUNTIME COMPONENTS                          --
--                                                                          --
--                          S Y S T E M . F O R E                           --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--                            $Revision: 1.1 $                              --
--                                                                          --
--           Copyright (c) 1992,1993,1994 NYU, All Rights Reserved          --
--                                                                          --
-- 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, 675 Mass Ave, Cambridge, MA 02139, USA. --
--                                                                          --
------------------------------------------------------------------------------

package body System.Fore is

   ----------
   -- Fore --
   ----------

   function Fore (Lo, Hi : Long_Long_Float) return Natural is
      T : Long_Long_Float := Long_Long_Float'Max (abs Lo, abs Hi);
      R : Natural;

   begin
      --  Initial value of 2 allows for sign and mandatory single digit

      R := 2;

      --  Loop to increase Fore as needed to include full range of values

      while T >= 10.0 loop
         T := T / 10.0;
         R := R + 1;
      end loop;

      return R;
   end Fore;
end System.Fore;


----------------------
-- REVISION HISTORY --
----------------------

--  ----------------------------
--  revision 1.1
--  date: Thu Jul 28 00:29:28 1994;  author: dewar
--  Initial revision
--  ----------------------------
--  New changes after this line.  Each line starts with: "--  "