GNAT RUN-TIME COMPONENTS

A D A . S T R E A M S

S p e c

$Revision: 1.9 $

Copyright (C) 1992-1997 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 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- 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, 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, 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.

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).

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

   --  Implementation-defined ...

end Ada.Streams;