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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . S T R E A M S --
-- --
-- S p e c --
-- --
-- Copyright (C) 1992-2014, 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
package Ada.Streams is
pragma Pure;
type Root_Stream_Type is abstract tagged limited private;
pragma Preelaborable_Initialization (Root_Stream_Type);
type Stream_Element is mod 2 ** Standard'Storage_Unit;
type Stream_Element_Offset is new Long_Long_Integer;
-- Stream_Element_Offset needs 64 bits to accomodate large stream files.
-- However, rather than make this explicitly 64-bits we derive from
-- Long_Long_Integer. In normal usage this will have the same effect.
-- But in the case of CodePeer with a target configuration file with a
-- maximum integer size of 32, it allows analysis of this unit.
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 aliased 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 : Stream_Element_Array)
is abstract;
private
type Root_Stream_Type is abstract tagged limited null record;
-- Stream attributes for Stream_Element_Array: trivially call the
-- corresponding stream primitive for the whole array, instead of doing
-- so element by element.
procedure Read_SEA
(S : access Root_Stream_Type'Class;
V : out Stream_Element_Array);
procedure Write_SEA
(S : access Root_Stream_Type'Class;
V : Stream_Element_Array);
for Stream_Element_Array'Read use Read_SEA;
for Stream_Element_Array'Write use Write_SEA;
end Ada.Streams;
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