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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . C H E C K E D _ P O O L S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2009, Free Software Foundation, Inc. --
+-- --
+-- 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 3, 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- GNAT was originally developed by the GNAT team at New York University. --
+-- Extensive contributions were provided by Ada Core Technologies Inc. --
+-- --
+------------------------------------------------------------------------------
+
+with System.Storage_Elements;
+with System.Storage_Pools;
+package System.Checked_Pools is
+
+ type Checked_Pool is abstract
+ new System.Storage_Pools.Root_Storage_Pool with private;
+ -- Equivalent of storage pools with the addition that Dereference is
+ -- called on each implicit or explicit dereference of a pointer which
+ -- has such a storage pool
+
+ procedure Dereference
+ (Pool : in out Checked_Pool;
+ Storage_Address : Address;
+ Size_In_Storage_Elements : System.Storage_Elements.Storage_Count;
+ Alignment : System.Storage_Elements.Storage_Count)
+ is abstract;
+ -- Called implicitly each time a pointer to a checked pool is dereferenced
+ -- All parameters in the profile are compatible with the profile of
+ -- Allocate/Deallocate: the Storage_Address corresponds to the address of
+ -- the dereferenced object, Size_in_Storage_Elements is its dynamic size
+ -- (and thus may involve an implicit dispatching call to size) and
+ -- Alignment is the alignment of the object.
+
+private
+ type Checked_Pool is abstract
+ new System.Storage_Pools.Root_Storage_Pool with null record;
+end System.Checked_Pools;