1------------------------------------------------------------------------------
2--                                                                          --
3--                 GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS                 --
4--                                                                          --
5--      S Y S T E M . G E N E R I C _ V E C T O R _ O P E R A T I O N 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 contains generic procedures for vector operations on arrays.
33--  If the arguments are aligned on word boundaries and the word size is a
34--  multiple M of the element size, the operations will be done M elements
35--  at a time using vector operations on a word.
36
37--  All routines assume argument arrays have the same length, and arguments
38--  with mode "in" do not alias arguments with mode "out" or "in out".
39--  If the number N of elements to be processed is not a multiple of M
40--  the final N rem M elements will be processed one item at a time.
41
42with System.Vectors;
43with System.Storage_Elements;
44
45generic
46   type Element is (<>);
47   type Index is (<>);
48   type Element_Array is array (Index range <>) of Element;
49
50package System.Generic_Vector_Operations is
51   pragma Pure;
52
53   generic
54      with function Element_Op (X, Y : Element) return Element;
55      with function Vector_Op (X, Y : Vectors.Vector) return Vectors.Vector;
56   procedure Binary_Operation
57     (R, X, Y : System.Address;
58      Length  : System.Storage_Elements.Storage_Count);
59
60   generic
61      with function Element_Op (X : Element) return Element;
62      with function Vector_Op (X : Vectors.Vector) return Vectors.Vector;
63   procedure Unary_Operation
64     (R, X    : System.Address;
65      Length  : System.Storage_Elements.Storage_Count);
66end System.Generic_Vector_Operations;
67