1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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 --
9 -- Copyright (C) 2002-2005 Free Software Foundation, Inc. --
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 2, 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. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNAT; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
20 -- Boston, MA 02110-1301, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- This package contains generic procedures for vector operations on arrays.
35 -- If the arguments are aligned on word boundaries and the word size is a
36 -- multiple M of the element size, the operations will be done M elements
37 -- at a time using vector operations on a word.
39 -- All routines assume argument arrays have the same length, and arguments
40 -- with mode "in" do not alias arguments with mode "out" or "in out".
41 -- If the number N of elements to be processed is not a multiple of M
42 -- the final N rem M elements will be processed one item at a time.
45 with System
.Storage_Elements
;
49 type Element_Array
is array (Index
range <>) of Element
;
50 package System
.Generic_Vector_Operations
is
51 pragma Pure
(Generic_Vector_Operations
);
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
);
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
);
66 end System
.Generic_Vector_Operations
;