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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [ada/] [a-coinho.ads] - Rev 706

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------------------------------------------------------------------------------
--                                                                          --
--                         GNAT LIBRARY COMPONENTS                          --
--                                                                          --
--    A D A . C O N T A I N E R S . I N D E F I N I T E _ H O L D E R S     --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--             Copyright (C) 2011, 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/>.                                          --
------------------------------------------------------------------------------
 
private with Ada.Finalization;
private with Ada.Streams;
 
generic
   type Element_Type (<>) is private;
   with function "=" (Left, Right : Element_Type) return Boolean is <>;
 
package Ada.Containers.Indefinite_Holders is
   pragma Preelaborate (Indefinite_Holders);
   pragma Remote_Types (Indefinite_Holders);
 
   type Holder is tagged private;
   pragma Preelaborable_Initialization (Holder);
 
   Empty_Holder : constant Holder;
 
   function "=" (Left, Right : Holder) return Boolean;
 
   function To_Holder (New_Item : Element_Type) return Holder;
 
   function Is_Empty (Container : Holder) return Boolean;
 
   procedure Clear (Container : in out Holder);
 
   function Element (Container : Holder) return Element_Type;
 
   procedure Replace_Element
     (Container : in out Holder;
      New_Item  : Element_Type);
 
   procedure Query_Element
     (Container : Holder;
      Process   : not null access procedure (Element : Element_Type));
   procedure Update_Element
     (Container : Holder;
      Process   : not null access procedure (Element : in out Element_Type));
 
   procedure Assign (Target : in out Holder; Source : Holder);
 
   function Copy (Source : Holder) return Holder;
 
   procedure Move (Target : in out Holder; Source : in out Holder);
 
private
 
   package AF renames Ada.Finalization;
 
   type Element_Access is access all Element_Type;
 
   procedure Read
     (Stream    : not null access Ada.Streams.Root_Stream_Type'Class;
      Container : out Holder);
 
   procedure Write
     (Stream    : not null access Ada.Streams.Root_Stream_Type'Class;
      Container : Holder);
 
   type Holder is new Ada.Finalization.Controlled with record
      Element : Element_Access;
      Busy    : Natural := 0;
   end record;
   for Holder'Read use Read;
   for Holder'Write use Write;
 
   overriding procedure Adjust (Container : in out Holder);
   overriding procedure Finalize (Container : in out Holder);
 
   Empty_Holder : constant Holder := (AF.Controlled with null, 0);
 
end Ada.Containers.Indefinite_Holders;
 

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