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 (Ordered_Multisets);
type Set is tagged private;
type Cursor is private;
Empty_Set : constant Set;
No_Element : constant Cursor;
function "=" (Left, Right : Set) return Boolean;
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 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);
procedure Delete
(Container : in out Set;
Item : Element_Type);
procedure Exclude
(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 Contains (Container : Set; Item : Element_Type) return Boolean;
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 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;
function Previous (Position : Cursor) return Cursor;
procedure Next (Position : in out Cursor);
procedure Previous (Position : in out Cursor);
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 limited private;
with function Key (Element : Element_Type) return Key_Type;
with function "<" (Left : Key_Type; Right : Element_Type)
return Boolean is <>;
with function ">" (Left : Key_Type; Right : Element_Type)
return Boolean is <>;
package Generic_Keys is
function Contains (Container : Set; Key : Key_Type) return Boolean;
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 Key (Position : Cursor) return Key_Type;
function Element (Container : Set; Key : Key_Type) return Element_Type;
procedure Delete (Container : in out Set; Key : Key_Type);
procedure Exclude (Container : in out Set; Key : Key_Type);
function "<" (Left : Cursor; Right : Key_Type) return Boolean;
function ">" (Left : Cursor; Right : Key_Type) return Boolean;
function "<" (Left : Key_Type; Right : Cursor) return Boolean;
function ">" (Left : Key_Type; Right : Cursor) return Boolean;
procedure Checked_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;
package Tree_Types is
new Red_Black_Trees.Generic_Tree_Types (Node_Access);
use Tree_Types;
use Ada.Finalization;
type Set is new Controlled with record
Tree : Tree_Type := (Length => 0, others => null);
end record;
procedure Adjust (Container : in out Set);
procedure Finalize (Container : in out Set) renames Clear;
type Set_Access is access constant Set;
for Set_Access'Storage_Size use 0;
type Cursor is record
Container : Set_Access;
Node : Node_Access;
end record;
No_Element : constant Cursor := Cursor'(null, null);
use Ada.Streams;
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 => (Length => 0, others => null));
end Ada.Containers.Ordered_Multisets;