/usr/share/ada/adainclude/alog/alog-controlled_map.ads is in libalog0.4.1-base-dev 0.4.1-2.
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-- Copyright (c) 2009,
-- Reto Buerki, Adrian-Ken Rueegsegger
--
-- This file is part of Alog.
--
-- Alog is free software; you can redistribute it and/or modify
-- it under the terms of the GNU Lesser General Public License as published
-- by the Free Software Foundation; either version 2.1 of the License, or
-- (at your option) any later version.
--
-- Alog 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 Lesser General Public License for more details.
--
-- You should have received a copy of the GNU Lesser General Public License
-- along with Alog; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
-- MA 02110-1301 USA
--
with Ada.Finalization;
with Ada.Containers.Indefinite_Ordered_Maps;
generic
type Key_Type (<>) is private;
type Element_Type (<>) is limited private;
type Element_Handle is access Element_Type;
with function "<" (Left, Right : Key_Type) return Boolean is <>;
-- Controlled variant of a map. The memory of an element pointed to by a
-- previously inserted handle is freed upon calling Delete, Clear or during
-- finalization of the controlled map. Thus control over objects inserted into
-- this map resides with the controlled map.
package Alog.Controlled_Map is
pragma Preelaborate;
type Map is new Ada.Finalization.Limited_Controlled with private;
-- A controlled map container.
procedure Insert
(Container : in out Map;
Key : Key_Type;
New_Item : Element_Handle);
-- Insert a new element handle with 'Key' into the controlled map.
function Element
(Container : Map;
Key : Key_Type)
return Element_Handle;
-- Return a handle to an element identified by 'Key'.
procedure Delete
(Container : in out Map;
Key : Key_Type);
-- Delete the element with key 'Key' from the map. Memory of the element is
-- freed.
function Contains
(Container : Map;
Key : Key_Type)
return Boolean;
-- Returns True if an element with key 'Key' is in the map.
function Is_Empty (Container : Map) return Boolean;
-- Returns True if the map is empty.
procedure Clear (Container : in out Map);
-- Remove all elements in the map. Memory of the elements is freed.
function Length (Container : Map) return Natural;
-- Return the current element count.
procedure Iterate
(Container : Map;
Process : not null access procedure (Handle : Element_Handle));
-- Iterate over all elements in the map and call the 'Process' procedure
-- for each handle.
private
overriding
procedure Finalize (Container : in out Map);
-- Clean up the the controlled map. This will Free all the memory occupied
-- by the elements in the map.
package Map_Of_Elements_Package is new
Ada.Containers.Indefinite_Ordered_Maps
(Key_Type => Key_Type,
Element_Type => Element_Handle);
package MOEP renames Map_Of_Elements_Package;
type Map is new Ada.Finalization.Limited_Controlled with record
Data : MOEP.Map;
end record;
end Alog.Controlled_Map;
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