------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- S Y S T E M . S T O R A G E _ E L E M E N T S -- -- -- -- B o d y -- -- -- -- Copyright (C) 1992-2004 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 2, 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. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNAT; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ with Unchecked_Conversion; package body System.Storage_Elements is pragma Suppress (All_Checks); function To_Address is new Unchecked_Conversion (Storage_Offset, Address); function To_Offset is new Unchecked_Conversion (Address, Storage_Offset); -- Address arithmetic function "+" (Left : Address; Right : Storage_Offset) return Address is begin return To_Address (To_Integer (Left) + To_Integer (To_Address (Right))); end "+"; function "+" (Left : Storage_Offset; Right : Address) return Address is begin return To_Address (To_Integer (To_Address (Left)) + To_Integer (Right)); end "+"; function "-" (Left : Address; Right : Storage_Offset) return Address is begin return To_Address (To_Integer (Left) - To_Integer (To_Address (Right))); end "-"; function "-" (Left, Right : Address) return Storage_Offset is begin return To_Offset (To_Address (To_Integer (Left) - To_Integer (Right))); end "-"; function "mod" (Left : Address; Right : Storage_Offset) return Storage_Offset is begin if Right >= 0 then return Storage_Offset (To_Integer (Left) mod Integer_Address (Right)); else return -Storage_Offset (To_Integer (Left) mod Integer_Address (-Right)); end if; end "mod"; -- Conversion to/from integers function To_Address (Value : Integer_Address) return Address is begin return Address (Value); end To_Address; function To_Integer (Value : Address) return Integer_Address is begin return Integer_Address (Value); end To_Integer; end System.Storage_Elements;