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From: John McCabe <john@nospam.assen.demon.co.uk>
Newsgroups: comp.lang.ada
Subject: C++0x and Threads - a poor relation to Ada's tasking model?
Date: Tue, 11 Aug 2009 16:30:13 +0100
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Date: 2009-08-11T16:30:13+01:00
List-Id: <comp.lang.ada>

I was just wondering if anyone here has been following the C++0x
development, particularly wrt concurrency etc.

Obviously we all know that one of the big issues Ada compilers had in
the early days was providing a supporting run-time system that was
robust, efficient and reliable.

To be honest, I haven't been following the C++0x development but,
based on what I have read about C++0x's threads stuff (based on
Boost.Thread) am I right in assuming that all that's being proposed is
a standardised abstraction of the threading functions of whatever OS
that your C++ program is running on?

I'm fairly sure this is how many Ada implementations work anyway, but
I believe there are (or have been) many Ada implementations developed
for bare machines where the Ada vendor provided the run time system.
That's definitely how TLD Systems Ada 83 run-time worked anyway.

So, are we seeing something arriving in C++ that need only be
supported by implementations running on a 3rd party OS (e.g. Windows,
VxWorks etc), or will threads need to be supported for bare machines
as well?

Thanks for any responses. This may seem like a C++ question, but it's
more a question of "why will Ada's threading model remain vastly
superior"!

Thanks