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From: tmoran@acm.org
Subject: Re: A copy question....
Date: Wed, 17 Oct 2001 00:18:33 GMT
Date: 2001-10-17T00:18:33+00:00	[thread overview]
Message-ID: <t74z7.24114$gT6.15011939@news1.rdc1.sfba.home.com> (raw)
In-Reply-To: 2d87db3f.0110160209.4c6f55c2@posting.google.com

> The use of
> >   for Source'Address use Address;
> is not portable.
>
> Rational would initialise Source to 0's (unless the Pragma Import is used).
  It's not a portability problem, it's an error in the code I posted. :(
Most compilers of my acquaintance only initialize things with
initializers, and don't initialize simple arrays of integers.  But that
just demonstrates the disadvantages of not using a diversity of compilers.
Yes indeed there should be a Pragma Import.
  As I read the LRM, the array Source ought to be declared aliased, also.
  Speaking of portability,
>  function To_Pointer_To_The_Array is
>     new Ada.Unchecked_Conversion (System.Address, Pointer_To_The_Array);
is not portable, while
package System.Address_To_Access_Conversions
is specifically designed to do what you want.
> Put_Line (Copied_Array (N)'Img);
  The 'Img attribute is a "vendor special", 'Image would be portable.



  reply	other threads:[~2001-10-17  0:18 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-15 10:40 A copy question Zebylon
2001-10-15 11:21 ` Dale Stanbrough
2001-10-15 11:30   ` Dale Stanbrough
2001-10-15 11:59     ` Petter Fryklund
2001-10-15 21:04       ` Dale Stanbrough
2001-10-16  2:34         ` Jeffrey Carter
2001-10-16 11:15           ` Dale Stanbrough
2001-10-15 13:38   ` Ted Dennison
2001-10-15 13:30 ` Mark Doherty
2001-10-15 17:00 ` tmoran
2001-10-16 10:09   ` Mark Doherty
2001-10-17  0:18     ` tmoran [this message]
2001-10-17  1:14       ` David Botton
2001-10-16 23:00 ` David Botton
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