1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT RUN-TIME COMPONENTS                         --
4--                                                                          --
5--                      S Y S T E M . E X P _ L L L U                       --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 1992-2021, Free Software Foundation, Inc.         --
10--                                                                          --
11-- GNAT is free software;  you can  redistribute it  and/or modify it under --
12-- terms of the  GNU General Public License as published  by the Free Soft- --
13-- ware  Foundation;  either version 3,  or (at your option) any later ver- --
14-- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
15-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
16-- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
17--                                                                          --
18-- As a special exception under Section 7 of GPL version 3, you are granted --
19-- additional permissions described in the GCC Runtime Library Exception,   --
20-- version 3.1, as published by the Free Software Foundation.               --
21--                                                                          --
22-- You should have received a copy of the GNU General Public License and    --
23-- a copy of the GCC Runtime Library Exception along with this program;     --
24-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
25-- <http://www.gnu.org/licenses/>.                                          --
26--                                                                          --
27-- GNAT was originally developed  by the GNAT team at  New York University. --
28-- Extensive contributions were provided by Ada Core Technologies Inc.      --
29--                                                                          --
30------------------------------------------------------------------------------
31
32--  This function performs exponentiation of unsigned types with binary modulus
33--  values exceeding that of System.Unsigned_Types.Long_Long_Unsigned.
34--  The result is always full width, the caller must do a masking operation if
35--  the modulus is less than 2 ** Long_Long_Long_Unsigned'Size.
36
37with System.Exponu;
38with System.Unsigned_Types;
39
40package System.Exp_LLLU is
41
42   subtype Long_Long_Long_Unsigned is Unsigned_Types.Long_Long_Long_Unsigned;
43
44   function Exp_Long_Long_Long_Unsigned is
45     new Exponu (Long_Long_Long_Unsigned);
46   pragma Pure_Function (Exp_Long_Long_Long_Unsigned);
47
48end System.Exp_LLLU;
49