1------------------------------------------------------------------------------
2--                                                                          --
3--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
4--                                                                          --
5--                       S Y S T E M . V E C T O R S                        --
6--                                                                          --
7--                                 S p e c                                  --
8--                                                                          --
9--          Copyright (C) 2002-2009 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 package defines a datatype which is most efficient for performing
33--  logical operations on large arrays. See System.Generic_Vector_Operations.
34
35--  In the future this package may also define operations such as element-wise
36--  addition, subtraction, multiplication, minimum and maximum of vector-sized
37--  packed arrays of Unsigned_8, Unsigned_16 and Unsigned_32 values. These
38--  operations could be implemented as system intrinsics on platforms with
39--  direct processor support for them.
40
41package System.Vectors is
42   pragma Pure;
43
44   type Vector is mod 2**System.Word_Size;
45   for Vector'Alignment use Integer'Min
46     (Standard'Maximum_Alignment, System.Word_Size / System.Storage_Unit);
47   for Vector'Size use System.Word_Size;
48
49end System.Vectors;
50