aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.8/gcc/ada/s-expmod.ads
blob: 99cf46ec754af3cd391bb646eec13307bb144bbd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT RUN-TIME COMPONENTS                         --
--                                                                          --
--                       S Y S T E M . E X P _ M O D                        --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--           Copyright (C) 1992-2009 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.      --
--                                                                          --
------------------------------------------------------------------------------

--  This procedure performs exponentiation of a modular type with non-binary
--  modulus values. Arithmetic is done in Long_Long_Unsigned, with explicit
--  accounting for the modulus value which is passed as the second argument.

package System.Exp_Mod is
   pragma Pure;

   function Exp_Modular
     (Left    : Integer;
      Modulus : Integer;
      Right   : Natural)
      return    Integer;

end System.Exp_Mod;