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1996-09-28
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3KB
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59 lines
------------------------------------------------------------------------------
-- --
-- GNAT RUNTIME COMPONENTS --
-- --
-- A D A . S T R E A M S --
-- --
-- S p e c --
-- --
-- $Revision: 1.7 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- 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- --
-- 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 --
-- to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
package Ada.Streams is
pragma Pure (Streams);
type Root_Stream_Type is abstract tagged limited private;
type Stream_Element is mod 2 ** Standard'Storage_Unit;
type Stream_Element_Offset is range
-(2 ** (Standard'Address_Size - 1)) ..
+(2 ** (Standard'Address_Size - 1)) - 1;
subtype Stream_Element_Count is
Stream_Element_Offset range 0 .. Stream_Element_Offset'Last;
type Stream_Element_Array is
array (Stream_Element_Offset range <>) of Stream_Element;
procedure Read
(Stream : in out Root_Stream_Type;
Item : out Stream_Element_Array;
Last : out Stream_Element_Offset)
is abstract;
procedure Write
(Stream : in out Root_Stream_Type;
Item : in Stream_Element_Array)
is abstract;
private
type Root_Stream_Type is abstract tagged limited null record;
end Ada.Streams;