| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT LIBRARY COMPONENTS -- |
| -- -- |
| -- A D A . C O N T A I N E R S . O R D E R E D _ M U L T I S E T S -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 2004-2006, 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.Red_Black_Trees; |
| with Ada.Finalization; |
| with Ada.Streams; |
| |
| generic |
| type Element_Type is private; |
| |
| with function "<" (Left, Right : Element_Type) return Boolean is <>; |
| with function "=" (Left, Right : Element_Type) return Boolean is <>; |
| |
| package Ada.Containers.Ordered_Multisets is |
| pragma Preelaborate; |
| |
| function Equivalent_Elements (Left, Right : Element_Type) return Boolean; |
| |
| type Set is tagged private; |
| |
| type Cursor is private; |
| |
| Empty_Set : constant Set; |
| |
| No_Element : constant Cursor; |
| |
| function "=" (Left, Right : Set) return Boolean; |
| |
| function Equivalent_Sets (Left, Right : Set) return Boolean; |
| |
| function To_Set (New_Item : Element_Type) return Set; |
| |
| function Length (Container : Set) return Count_Type; |
| |
| function Is_Empty (Container : Set) return Boolean; |
| |
| procedure Clear (Container : in out Set); |
| |
| function Element (Position : Cursor) return Element_Type; |
| |
| procedure Replace_Element |
| (Container : in out Set; |
| Position : Cursor; |
| New_Item : Element_Type); |
| |
| procedure Query_Element |
| (Position : Cursor; |
| Process : not null access procedure (Element : Element_Type)); |
| |
| procedure Move (Target : in out Set; Source : in out Set); |
| |
| procedure Insert |
| (Container : in out Set; |
| New_Item : Element_Type; |
| Position : out Cursor); |
| |
| procedure Insert |
| (Container : in out Set; |
| New_Item : Element_Type); |
| |
| -- TODO: include Replace too??? |
| -- |
| -- procedure Replace |
| -- (Container : in out Set; |
| -- New_Item : Element_Type); |
| |
| procedure Exclude |
| (Container : in out Set; |
| Item : Element_Type); |
| |
| procedure Delete |
| (Container : in out Set; |
| Item : Element_Type); |
| |
| procedure Delete |
| (Container : in out Set; |
| Position : in out Cursor); |
| |
| procedure Delete_First (Container : in out Set); |
| |
| procedure Delete_Last (Container : in out Set); |
| |
| procedure Union (Target : in out Set; Source : Set); |
| |
| function Union (Left, Right : Set) return Set; |
| |
| function "or" (Left, Right : Set) return Set renames Union; |
| |
| procedure Intersection (Target : in out Set; Source : Set); |
| |
| function Intersection (Left, Right : Set) return Set; |
| |
| function "and" (Left, Right : Set) return Set renames Intersection; |
| |
| procedure Difference (Target : in out Set; Source : Set); |
| |
| function Difference (Left, Right : Set) return Set; |
| |
| function "-" (Left, Right : Set) return Set renames Difference; |
| |
| procedure Symmetric_Difference (Target : in out Set; Source : Set); |
| |
| function Symmetric_Difference (Left, Right : Set) return Set; |
| |
| function "xor" (Left, Right : Set) return Set renames Symmetric_Difference; |
| |
| function Overlap (Left, Right : Set) return Boolean; |
| |
| function Is_Subset (Subset : Set; Of_Set : Set) return Boolean; |
| |
| function First (Container : Set) return Cursor; |
| |
| function First_Element (Container : Set) return Element_Type; |
| |
| function Last (Container : Set) return Cursor; |
| |
| function Last_Element (Container : Set) return Element_Type; |
| |
| function Next (Position : Cursor) return Cursor; |
| |
| procedure Next (Position : in out Cursor); |
| |
| function Previous (Position : Cursor) return Cursor; |
| |
| procedure Previous (Position : in out Cursor); |
| |
| function Find (Container : Set; Item : Element_Type) return Cursor; |
| |
| function Floor (Container : Set; Item : Element_Type) return Cursor; |
| |
| function Ceiling (Container : Set; Item : Element_Type) return Cursor; |
| |
| function Contains (Container : Set; Item : Element_Type) return Boolean; |
| |
| function Has_Element (Position : Cursor) return Boolean; |
| |
| function "<" (Left, Right : Cursor) return Boolean; |
| |
| function ">" (Left, Right : Cursor) return Boolean; |
| |
| function "<" (Left : Cursor; Right : Element_Type) return Boolean; |
| |
| function ">" (Left : Cursor; Right : Element_Type) return Boolean; |
| |
| function "<" (Left : Element_Type; Right : Cursor) return Boolean; |
| |
| function ">" (Left : Element_Type; Right : Cursor) return Boolean; |
| |
| procedure Iterate |
| (Container : Set; |
| Process : not null access procedure (Position : Cursor)); |
| |
| procedure Reverse_Iterate |
| (Container : Set; |
| Process : not null access procedure (Position : Cursor)); |
| |
| procedure Iterate |
| (Container : Set; |
| Item : Element_Type; |
| Process : not null access procedure (Position : Cursor)); |
| |
| procedure Reverse_Iterate |
| (Container : Set; |
| Item : Element_Type; |
| Process : not null access procedure (Position : Cursor)); |
| |
| generic |
| type Key_Type (<>) is private; |
| |
| with function Key (Element : Element_Type) return Key_Type; |
| |
| with function "<" (Left, Right : Key_Type) return Boolean is <>; |
| |
| package Generic_Keys is |
| |
| function Equivalent_Keys (Left, Right : Key_Type) return Boolean; |
| |
| function Key (Position : Cursor) return Key_Type; |
| |
| function Element (Container : Set; Key : Key_Type) return Element_Type; |
| |
| procedure Exclude (Container : in out Set; Key : Key_Type); |
| |
| procedure Delete (Container : in out Set; Key : Key_Type); |
| |
| function Find (Container : Set; Key : Key_Type) return Cursor; |
| |
| function Floor (Container : Set; Key : Key_Type) return Cursor; |
| |
| function Ceiling (Container : Set; Key : Key_Type) return Cursor; |
| |
| function Contains (Container : Set; Key : Key_Type) return Boolean; |
| |
| procedure Update_Element |
| (Container : in out Set; |
| Position : Cursor; |
| Process : not null access |
| procedure (Element : in out Element_Type)); |
| |
| procedure Iterate |
| (Container : Set; |
| Key : Key_Type; |
| Process : not null access procedure (Position : Cursor)); |
| |
| procedure Reverse_Iterate |
| (Container : Set; |
| Key : Key_Type; |
| Process : not null access procedure (Position : Cursor)); |
| |
| end Generic_Keys; |
| |
| private |
| |
| type Node_Type; |
| type Node_Access is access Node_Type; |
| |
| type Node_Type is limited record |
| Parent : Node_Access; |
| Left : Node_Access; |
| Right : Node_Access; |
| Color : Red_Black_Trees.Color_Type := Red_Black_Trees.Red; |
| Element : Element_Type; |
| end record; |
| |
| package Tree_Types is new Red_Black_Trees.Generic_Tree_Types |
| (Node_Type, |
| Node_Access); |
| |
| type Set is new Ada.Finalization.Controlled with record |
| Tree : Tree_Types.Tree_Type; |
| end record; |
| |
| procedure Adjust (Container : in out Set); |
| |
| procedure Finalize (Container : in out Set) renames Clear; |
| |
| use Red_Black_Trees; |
| use Tree_Types; |
| use Ada.Finalization; |
| use Ada.Streams; |
| |
| type Set_Access is access all Set; |
| for Set_Access'Storage_Size use 0; |
| |
| type Cursor is record |
| Container : Set_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 := Cursor'(null, null); |
| |
| procedure Write |
| (Stream : access Root_Stream_Type'Class; |
| Container : Set); |
| |
| for Set'Write use Write; |
| |
| procedure Read |
| (Stream : access Root_Stream_Type'Class; |
| Container : out Set); |
| |
| for Set'Read use Read; |
| |
| Empty_Set : constant Set := |
| (Controlled with Tree => (First => null, |
| Last => null, |
| Root => null, |
| Length => 0, |
| Busy => 0, |
| Lock => 0)); |
| |
| end Ada.Containers.Ordered_Multisets; |