Fwd: C++0x developments

-------- Original Message --------
Subject: 	[liblf-dev] C++0x developments
Date: 	Fri, 22 Feb 2008 12:47:36 -0500
From: 	Bjorn Roche <bjorn@...>
Reply-To: 	liblf-dev@...
To: 	liblf-dev@...

Hey all,

I just wanted to update everyone on the latest developments in C++0x
(hopefully that will be C++08!). Lawrence Crowl, one of the members of
the committee gave a talk to google back in may about the developments:

http://video.google.com/videoplay?docid=3528799355371049884
<http://video.google.com/videoplay?docid=3528799355371049884>

One of the most important things is that C++ will have built-in
support for threads, including a memory model, synchronization and
atomics. Since he gave his talk, the committee has decided to add
limited support for fences as well.

Note that GCC currently has intrinsic support for atomic operations
(http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html
<http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html>
) and even fences, so it's possible to build such types now that's at
least compatible with gcc. I'm going to write a prototype for and
atomic int for GCC if anyone is interested -- should be pretty simple
with those intrinsics, but who knows.