gcc/ada/s-geveop.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                GNU ADA RUNTIME 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 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 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,  59 Temple Place - Suite 330,  Boston, --
  20 -- MA 02111-1307, USA.                                                      --
  21 --                                                                          --
  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.                                      --
  28 --                                                                          --
  29 -- GNAT was originally developed  by the GNAT team at  New York University. --
  30 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  31 --                                                                          --
  32 ------------------------------------------------------------------------------
  33
  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.
  38
  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.
  43
  44 with System.Vectors;
  45 with System.Storage_Elements;
  46 generic
  47    type Element is (<>);
  48    type Index is (<>);
  49    type Element_Array is array (Index range <>) of Element;
  50 package System.Generic_Vector_Operations is
  51 pragma Pure (Generic_Vector_Operations);
  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);
  66 end System.Generic_Vector_Operations;