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+------------------------------------------------------------------------------
+-- --
+-- GNAT COMPILER COMPONENTS --
+-- --
+-- S Y S T E M . A D D R E S S _ T O _ A C C E S S _ C O N V E R S I O N S --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 1992-2012, 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 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. --
+-- --
+------------------------------------------------------------------------------
+
+generic
+ type Object (<>) is limited private;
+
+package System.Address_To_Access_Conversions is
+ pragma Preelaborate;
+
+ pragma Compile_Time_Warning
+ (Object'Unconstrained_Array,
+ "Object is unconstrained array type" & ASCII.LF &
+ "To_Pointer results may not have bounds");
+
+ type Object_Pointer is access all Object;
+ for Object_Pointer'Size use Standard'Address_Size;
+
+ pragma No_Strict_Aliasing (Object_Pointer);
+ -- Strictly speaking, this routine should not be used to generate pointers
+ -- to other than proper values of the proper type, but in practice, this
+ -- is done all the time. This pragma stops the compiler from doing some
+ -- optimizations that may cause unexpected results based on the assumption
+ -- of no strict aliasing.
+
+ function To_Pointer (Value : Address) return Object_Pointer;
+ function To_Address (Value : Object_Pointer) return Address;
+
+ pragma Import (Intrinsic, To_Pointer);
+ pragma Import (Intrinsic, To_Address);
+
+end System.Address_To_Access_Conversions;