From: Simon Wright <simon@pushface.org>
Subject: Re: Introductory Ada Programming Book
Date: Thu, 05 Jan 2017 08:38:02 +0000
Date: 2017-01-05T08:38:02+00:00 [thread overview]
Message-ID: <ly1swhgavp.fsf@pushface.org> (raw)
In-Reply-To: o4kpf8$r4j$1@dont-email.me
"J-P. Rosen" <rosen@adalog.fr> writes:
> A program that does not initialize a variable before using it has a
> bug. If the program works because the compiler provided a default
> value that happened to have an appropriate value, it's a buggy program
> that works by chance.
We had a program that was developed under Windows; when we transterred
it to the VxWorks target, it fell in a tangled heap.
This was because, on Windows, 'new' using the default storage pool
returned zero-filled memory, while under VxWorks (5.3) the memory was
uninitialized. We changed to a storage pool that filled allocated memory
with 16#deadbeef#.
next prev parent reply other threads:[~2017-01-05 8:38 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-31 13:18 Introductory Ada Programming Book Andrew Shvets
2016-12-31 14:26 ` Lucretia
2016-12-31 15:10 ` Dmitry A. Kazakov
2016-12-31 17:14 ` Andrew Shvets
2016-12-31 14:28 ` Lucretia
2016-12-31 14:34 ` Lucretia
2016-12-31 17:22 ` Andrew Shvets
2016-12-31 17:59 ` Gour
2017-01-02 15:56 ` Andrew Shvets
2017-01-02 16:32 ` Gour
2017-01-03 15:31 ` Patrick Noffke
2017-01-03 22:18 ` Andrew Shvets
2017-01-04 1:14 ` Paul Rubin
2017-01-04 3:07 ` Andrew Shvets
2017-01-04 6:46 ` J-P. Rosen
2017-01-04 9:25 ` raph.amiard
2017-01-04 12:40 ` J-P. Rosen
2017-01-04 12:49 ` Dmitry A. Kazakov
2017-01-04 13:45 ` raph.amiard
2017-01-04 14:14 ` Dmitry A. Kazakov
2017-01-04 15:15 ` Simon Wright
2017-01-10 10:02 ` raph.amiard
2017-01-04 15:18 ` Shark8
2017-01-04 21:47 ` Randy Brukardt
2017-01-05 3:04 ` Shark8
2017-01-05 7:51 ` G.B.
2017-01-04 13:44 ` raph.amiard
2017-01-04 22:08 ` Jeffrey R. Carter
2017-01-04 22:39 ` Niklas Holsti
2017-01-05 0:38 ` G.B.
2017-01-05 23:52 ` Randy Brukardt
2017-01-05 6:36 ` J-P. Rosen
2017-01-05 8:38 ` Simon Wright [this message]
2017-01-10 10:13 ` raph.amiard
2017-01-09 22:01 ` Robert Eachus
2017-01-04 23:42 ` Andrew Shvets
2017-01-05 0:47 ` G.B.
2017-01-05 19:01 ` Jacob Sparre Andersen
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