gcc/ada/libgnat/s-geveop.ads

   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) 2002-2019, 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
  42 with System.Vectors;
  43 with System.Storage_Elements;
  44
  45 generic
  46    type Element is (<>);
  47    type Index is (<>);
  48    type Element_Array is array (Index range <>) of Element;
  49
  50 package 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);
  66 end System.Generic_Vector_Operations;