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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 A S H E D _ M A P S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2004-2005, 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, 51 Franklin Street, Fifth Floor, --
+-- Boston, MA 02110-1301, 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. --
+-- --
+-- This unit was originally developed by Matthew J Heaney. --
+------------------------------------------------------------------------------
+
+with Ada.Containers.Hash_Tables;
+with Ada.Streams;
+with Ada.Finalization;
+
+generic
+ type Key_Type (<>) is private;
+ type Element_Type (<>) is private;
+
+ with function Hash (Key : Key_Type) return Hash_Type;
+ with function Equivalent_Keys (Left, Right : Key_Type) return Boolean;
+ with function "=" (Left, Right : Element_Type) return Boolean is <>;
+
+package Ada.Containers.Indefinite_Hashed_Maps is
+ pragma Preelaborate;
+
+ type Map is tagged private;
+ type Cursor is private;
+
+ Empty_Map : constant Map;
+ No_Element : constant Cursor;
+
+ function "=" (Left, Right : Map) return Boolean;
+
+ function Capacity (Container : Map) return Count_Type;
+
+ procedure Reserve_Capacity
+ (Container : in out Map;
+ Capacity : Count_Type);
+
+ function Length (Container : Map) return Count_Type;
+
+ function Is_Empty (Container : Map) return Boolean;
+
+ procedure Clear (Container : in out Map);
+
+ function Key (Position : Cursor) return Key_Type;
+
+ function Element (Position : Cursor) return Element_Type;
+
+ procedure Replace_Element
+ (Container : in out Map;
+ Position : Cursor;
+ New_Item : Element_Type);
+
+ procedure Query_Element
+ (Position : Cursor;
+ Process : not null access procedure (Key : Key_Type;
+ Element : Element_Type));
+
+ procedure Update_Element
+ (Container : in out Map;
+ Position : Cursor;
+ Process : not null access procedure (Key : Key_Type;
+ Element : in out Element_Type));
+
+ procedure Move (Target : in out Map; Source : in out Map);
+
+ procedure Insert
+ (Container : in out Map;
+ Key : Key_Type;
+ New_Item : Element_Type;
+ Position : out Cursor;
+ Inserted : out Boolean);
+
+ procedure Insert
+ (Container : in out Map;
+ Key : Key_Type;
+ New_Item : Element_Type);
+
+ procedure Include
+ (Container : in out Map;
+ Key : Key_Type;
+ New_Item : Element_Type);
+
+ procedure Replace
+ (Container : in out Map;
+ Key : Key_Type;
+ New_Item : Element_Type);
+
+ procedure Exclude (Container : in out Map; Key : Key_Type);
+
+ procedure Delete (Container : in out Map; Key : Key_Type);
+
+ procedure Delete (Container : in out Map; Position : in out Cursor);
+
+ function First (Container : Map) return Cursor;
+
+ function Next (Position : Cursor) return Cursor;
+
+ procedure Next (Position : in out Cursor);
+
+ function Find (Container : Map; Key : Key_Type) return Cursor;
+
+ function Contains (Container : Map; Key : Key_Type) return Boolean;
+
+ function Element (Container : Map; Key : Key_Type) return Element_Type;
+
+ function Has_Element (Position : Cursor) return Boolean;
+
+ function Equivalent_Keys (Left, Right : Cursor) return Boolean;
+
+ function Equivalent_Keys (Left : Cursor; Right : Key_Type) return Boolean;
+
+ function Equivalent_Keys (Left : Key_Type; Right : Cursor) return Boolean;
+
+ procedure Iterate
+ (Container : Map;
+ Process : not null access procedure (Position : Cursor));
+
+private
+ pragma Inline ("=");
+ pragma Inline (Length);
+ pragma Inline (Is_Empty);
+ pragma Inline (Clear);
+ pragma Inline (Key);
+ pragma Inline (Element);
+ pragma Inline (Move);
+ pragma Inline (Contains);
+ pragma Inline (Capacity);
+ pragma Inline (Reserve_Capacity);
+ pragma Inline (Has_Element);
+ pragma Inline (Equivalent_Keys);
+
+ type Node_Type;
+ type Node_Access is access Node_Type;
+
+ type Key_Access is access Key_Type;
+ type Element_Access is access Element_Type;
+
+ type Node_Type is limited record
+ Key : Key_Access;
+ Element : Element_Access;
+ Next : Node_Access;
+ end record;
+
+ package HT_Types is new Hash_Tables.Generic_Hash_Table_Types
+ (Node_Type,
+ Node_Access);
+
+ type Map is new Ada.Finalization.Controlled with record
+ HT : HT_Types.Hash_Table_Type;
+ end record;
+
+ use HT_Types;
+ use Ada.Finalization;
+ use Ada.Streams;
+
+ procedure Adjust (Container : in out Map);
+
+ procedure Finalize (Container : in out Map);
+
+ type Map_Access is access constant Map;
+ for Map_Access'Storage_Size use 0;
+
+ type Cursor is
+ record
+ Container : Map_Access;
+ Node : Node_Access;
+ end record;
+
+ procedure Write
+ (Stream : access Root_Stream_Type'Class;
+ Item : Cursor);
+
+ for Cursor'Write use Write;
+
+ procedure Read
+ (Stream : access Root_Stream_Type'Class;
+ Item : out Cursor);
+
+ for Cursor'Read use Read;
+
+ No_Element : constant Cursor :=
+ (Container => null,
+ Node => null);
+
+ procedure Write
+ (Stream : access Root_Stream_Type'Class;
+ Container : Map);
+
+ for Map'Write use Write;
+
+ procedure Read
+ (Stream : access Root_Stream_Type'Class;
+ Container : out Map);
+
+ for Map'Read use Read;
+
+ Empty_Map : constant Map := (Controlled with HT => (null, 0, 0, 0));
+
+end Ada.Containers.Indefinite_Hashed_Maps;