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1994-05-19
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53 lines
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- S Y S T E M . A D D R E S S _ I M A G E --
-- --
-- B o d y --
-- --
-- $Revision: 1.2 $ --
-- --
-- Copyright (c) 1992,1993,1994 NYU, All Rights Reserved --
-- --
-- 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, 675 Mass Ave, Cambridge, MA 02139, USA. --
-- --
------------------------------------------------------------------------------
with Unchecked_Conversion;
function System.Address_Image (A : Address) return String is
Result : String (1 .. 2 * Address'Size / Storage_Unit);
type Byte is mod 2 ** 8;
for Byte'Size use 8;
Hexdigs :
constant array (Byte range 0 .. 15) of Character := "0123456789ABCDEF";
type Bytes is array (1 .. Address'Size / Storage_Unit) of Byte;
for Bytes'Size use Address'Size;
function To_Bytes is new Unchecked_Conversion (Address, Bytes);
Byte_Sequence : constant Bytes := To_Bytes (A);
begin
for N in Bytes'range loop
Result (2 * N - 1) := Hexdigs (Byte_Sequence (N) / 16);
Result (2 * N) := Hexdigs (Byte_Sequence (N) mod 16);
end loop;
return Result;
end System.Address_Image;