Re: Threading in new C++ standard

From:
James Kanze <james.kanze@gmail.com>
Newsgroups:
comp.lang.c++,comp.soft-sys.ace
Date:
Wed, 30 Apr 2008 04:25:38 -0700 (PDT)
Message-ID:
<4202b6a1-ae32-4174-a0b2-9ca21af601f1@m36g2000hse.googlegroups.com>
On Apr 30, 7:55 am, Markus Elfring <Markus.Elfr...@web.de> wrote:

The C++ standard does not distinguish linking as a separate
operation. It's one of the "phases of translation". The C++
standard specifies behavior for a legal program, and gives the
programmer certain guarantees, without regard to who does what
in any particular implementation's translation process.


Are you generally looking for instruction reordering
prevention that should be supported by compilers and various
linkers? Are there still any dangers for the concurrency
memory model because of potential optimisations?


I'm not sure I understand the question. The current rules allow
considerable reordering, and don't take threading issues into
consideration. Which means that you can't write concurrent code
without additional, implementation defined guarantees.

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