From: Simon Wright <simon@pogner.demon.co.uk>
Subject: Re: Initialized global data
Date: 1998/05/08
Date: 1998-05-08T00:00:00+00:00 [thread overview]
Message-ID: <x7vhg30zu85.fsf@pogner.demon.co.uk> (raw)
In-Reply-To: 199805061414.QAA14832@basement.replay.com
nobody@REPLAY.COM (Anonymous) writes:
[...]
> Or you can use an uninitialized "variable" (that doesn't) at a specified
> address:
>
> X : T;
> for X'Address use A; -- Ada 83: "for X use at A;"
I'm not sure of chapter-and-verse, but I believe that a compiler is
allowed to initialize X here under some circumstances; which wouldn't
be what you wanted!
The specific case where this happened to us was when T happened to be
a packed array of bits. We were assured by our support that it was OK
for their compiler to initialize all the bits to 0, I was dubious
about this! (and I can't seem to recreate the situation in the latest
release ..)
next prev parent reply other threads:[~1998-05-08 0:00 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-05-05 0:00 Initialized global data Kevin Wells
1998-05-05 0:00 ` A little more data Kevin Wells
1998-05-06 0:00 ` Stephen Leake
1998-05-06 0:00 ` Initialized global data Anonymous
1998-05-08 0:00 ` Simon Wright [this message]
1998-05-08 0:00 ` Tucker Taft
1998-05-09 0:00 ` Simon Wright
1998-05-10 0:00 ` Robert Dewar
1998-05-11 0:00 ` Simon Wright
1998-05-11 0:00 ` Matthew Heaney
1998-05-06 0:00 ` John English
1998-05-06 0:00 ` Tucker Taft
1998-05-09 0:00 ` Niklas Holsti
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