File : a-stream.ads
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
5 -- A D A . S T R E A M S --
-- --
-- S p e c --
-- --
-- $Revision: 1.10 $
10 -- --
-- Copyright (C) 1992-2001 Free Software Foundation, Inc. --
-- --
-- This specification is derived from the Ada Reference Manual for use with --
-- GNAT. The copyright notice above, and the license provisions that follow --
15 -- apply solely to the contents of the part following the private keyword. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
20 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
25 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
30 -- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
35 -- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
40
package Ada.Streams is
pragma Pure (Streams);
type Root_Stream_Type is abstract tagged limited private;
45
type Stream_Element is mod 2 ** Standard'Storage_Unit;
type Stream_Element_Offset is range
-(2 ** (Standard'Address_Size - 1)) ..
50 +(2 ** (Standard'Address_Size - 1)) - 1;
subtype Stream_Element_Count is
Stream_Element_Offset range 0 .. Stream_Element_Offset'Last;
55 type Stream_Element_Array is
array (Stream_Element_Offset range <>) of aliased Stream_Element;
procedure Read
(Stream : in out Root_Stream_Type;
60 Item : out Stream_Element_Array;
Last : out Stream_Element_Offset)
is abstract;
procedure Write
65 (Stream : in out Root_Stream_Type;
Item : in Stream_Element_Array)
is abstract;
private
70
type Root_Stream_Type is abstract tagged limited null record;
end Ada.Streams;