Re: thread local variable

From:
"Mark Salsbery [MVP]" <MarkSalsbery[MVP]@newsgroup.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Fri, 17 Aug 2007 08:53:50 -0700
Message-ID:
<uNDKWbO4HHA.1168@TK2MSFTNGP02.phx.gbl>
:) The "Nitpicking police"

Isn't that variable implicitly static? I think the point is it can't be an
automatic variable.

Cheers,
Mark

--
Mark Salsbery
Microsoft MVP - Visual C++

"Ulrich Eckhardt" <eckhardt@satorlaser.com> wrote in message
news:hqagp4-g05.ln1@satorlaser.homedns.org...

Alex Blekhman wrote:

`__declspec(thread)' modifier can be applied to static variables only.


Hmmm, that statement is pretty misleading, 'static' is not sufficient to
describe the requirement:

namespace answer {
  int __declspec(thread) fourtytwo;
}

This is perfectly valid without any 'static'. Further, the 'namespace' is
only to demonstrate that the declaration is not local or at class scope,
it
could have been in the global namespace or an anonymous one, too.

* You can specify the thread attribute only on data items
with static storage duration.


"static storage duration" is the key here, variables at namespace scope
also
fall under this category.

Uli

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