------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- Cheddar is a GNU GPL real-time scheduling analysis tool.
-- This program provides services to automatically check schedulability and
-- other performance criteria of real-time architecture models.
--
-- Copyright (C) 2002-2016, Frank Singhoff, Alain Plantec, Jerome Legrand
--
-- The Cheddar project was started in 2002 by 
-- Frank Singhoff, Lab-STICC UMR 6285 laboratory, Université de Bretagne Occidentale
-- 
-- Cheddar has been published in the "Agence de Protection des Programmes/France" in 2008. 
-- Since 2008, Ellidiss technologies also contributes to the development of 
-- Cheddar and provides industrial support.
--
-- The full list of contributors and sponsors can be found in AUTHORS.txt and SPONSORS.txt
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program 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 General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--
--
-- Contact : cheddar@listes.univ-brest.fr
--           
------------------------------------------------------------------------------
-- Last update : 
--    $Rev: 1249 $
--    $Date: 2014-08-28 07:02:15 +0200 (Fri, 28 Aug 2014) $
--    $Author: singhoff $
------------------------------------------------------------------------------
------------------------------------------------------------------------------

with Ada.Strings.Unbounded;  use Ada.Strings.Unbounded;
with Ada.Numerics.Aux;       use Ada.Numerics.Aux;
with Unchecked_Deallocation;

package double_util is

   -- Pointer to a double
   --
   type double_ptr is access Double;

   procedure free is new Unchecked_Deallocation (Double, double_ptr);

   -- Initialize a double
   --
   procedure initialize (f : out Double);

   -- Convert a double into a string
   --
   function format
     (f     : in Double;
      after : in Integer := 5)
      return  Unbounded_String;

   -- Display a double
   --
   procedure put (f : in Double);
   procedure put (f : in double_ptr);
   procedure put_line (f : in Double);

   -- New equal function for numeric stability
   --
   function equal
     (num1, num2 : in Double;
      accuracy   : in Integer := 10000)
      return       Boolean;

   -- return A Modulo B
   --
   function double_mod (a : Double; b : Double) return Double;

   -- return A remainder B
   --
   function double_rem (a : Double; b : Double) return Double;

   -- LCM et GCD
   --
   function lcm (a : Double; b : Double) return Double;
   function gcd (left : double; right : double) return double;


   function copy (obj : double_ptr) return double_ptr;

end double_util;