File : asgc-hash-expandable.ads
-- The Ada Structured Library - A set of container classes and general
-- tools for use with Ada95.
-- Copyright (C) 1998-1999 Corey Minyard (minyard@acm.org)
--
-- This library is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License as published by the
-- Free Software Foundation; either version 2 of the License, or (at your
-- option) any later version.
--
-- This library is distributed in the hope that it will be useful, but
-- WITHOUT 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 along
-- with this library; if not, write to the Free Software Foundation, Inc.,
-- 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.
--
generic
package Asgc.Hash.Expandable is
type Fill_Percent is range 20 .. 99;
------------------------------------------------------------------------
type Object (Allow_Duplicates : Boolean;
Size : Positive;
Max_Fill_Percent : Fill_Percent)
is new Asgc.Hash.Object with private;
type Object_Class is access all Object'Class;
type Object_Ptr is access all Object;
procedure Add (O : in out Object; Val : in Contained_Type);
procedure Delete (O : in out Object;
Val : in Contained_Type);
function Value_Exists (O : in Object;
Val : in Contained_Type)
return Boolean;
function "=" (O1, O2 : in Object) return Boolean;
function Member_Count (O : in Object)
return Natural;
procedure Verify_Integrity (O : in Object);
function Copy (O : in Object) return Asgc.Object_Class;
procedure Initialize (O : in out Object);
procedure Adjust (O : in out Object);
procedure Finalize (O : in out Object);
------------------------------------------------------------------------
type Iterator is new Asgc.Hash.Iterator with private;
type Iterator_Class is access all Iterator'Class;
type Iterator_Ptr is access all Iterator;
function New_Iterator (O : access Object) return Asgc.Iterator_Class;
function New_Iterator (O : in Object_Class) return Iterator;
procedure Free (Iter : access Iterator);
procedure Set_Container (Iter : in out Iterator;
O : in Asgc.Object_Class);
procedure Add (Iter : in out Iterator;
Val : in Contained_Type);
procedure Search (Iter : in out Iterator;
Val : in Contained_Type;
Found : out Boolean);
procedure Search_Again (Iter : in out Iterator;
Found : out Boolean);
procedure First (Iter : in out Iterator; Is_End : out End_Marker);
procedure Next (Iter : in out Iterator; Is_End : out End_Marker);
procedure Delete (Iter : in out Iterator; Is_End : out End_Marker);
function Is_Same (Iter1, Iter2 : in Iterator) return Boolean;
function Get (Iter : in Iterator) return Contained_Type;
procedure Get_Incr (Iter : in out Iterator;
Val : out Contained_Type;
Is_End : out End_Marker);
function "=" (Iter1, Iter2 : in Iterator) return Boolean;
function "=" (Iter : in Iterator; Val : in Contained_Type) return Boolean;
function "=" (Val : in Contained_Type; Iter : in Iterator) return Boolean;
procedure Finalize (Iter : in out Iterator);
private
type Node;
type Node is record
Inuse : Boolean := False;
Val : Contained_Type;
end record;
type Table is array (Integer range <>) of Node;
type Object (Allow_Duplicates : Boolean;
Size : Positive;
Max_Fill_Percent : Fill_Percent)
is new Asgc.Hash.Object with record
Data : Table(1 .. Size);
Count : Natural := 0;
Next : Object_Ptr := null;
Max_Items : Positive;
end record;
type Iterator is new Asgc.Hash.Iterator with record
Robj : Object_Class := null;
Cobj : Object_Ptr := null;
Pos : Positive := 1;
end record;
end Asgc.Hash.Expandable;