+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- 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 --
--- --
--- $Revision: 1.1.16.2 $
--- --
--- Copyright (C) 1992,1993,1994 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 Left + To_Address (Right);
- end "+";
-
- function "+" (Left : Storage_Offset; Right : Address) return Address is
- begin
- return To_Address (Left) + Right;
- end "+";
-
- function "-" (Left : Address; Right : Storage_Offset) return Address is
- begin
- return Left - To_Address (Right);
- end "-";
-
- function "-" (Left, Right : Address) return Storage_Offset is
- begin
- return To_Offset (Left - Right);
- end "-";
-
- function "mod" (Left : Address; Right : Storage_Offset)
- return Storage_Offset is
- begin
- if Right >= 0 then
- return Storage_Offset (Address'(Left mod Address (Right)));
- else
- return -Storage_Offset (Address'(Left mod 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;