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1996-09-28
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3KB
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54 lines
------------------------------------------------------------------------------
-- --
-- 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 --
-- --
-- B o d y --
-- --
-- $Revision: 1.3 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- The GNAT library is free software; you can redistribute it and/or modify --
-- it under terms of the GNU Library General Public License as published by --
-- the Free Software Foundation; either version 2, or (at your option) any --
-- later version. The GNAT library 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 --
-- Library General Public License for more details. You should have --
-- received a copy of the GNU Library General Public License along with --
-- the GNAT library; see the file COPYING.LIB. If not, write to the Free --
-- Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
with Unchecked_Conversion;
package body System.Address_To_Access_Conversions is
----------------
-- To_Address --
----------------
function To_Address (Value : Object_Pointer) return Address is
begin
if Value = null then
return Null_Address;
else
return Value.all'Address;
end if;
end To_Address;
----------------
-- To_Pointer --
----------------
function To_Pointer (Value : Address) return Object_Pointer is
function A_To_P is new Unchecked_Conversion (Address, Object_Pointer);
begin
return A_To_P (Value);
end To_Pointer;
end System.Address_To_Access_Conversions;