Re: [Boost-users] mpi non-blocking communication

Am 29.11.2010 um 11:52 schrieb Riccardo Murri:

Hi,

On Sun, Nov 28, 2010 at 5:44 PM, Kraus Philipp wrote:

...

I'll get now some compiler warning in the boost::optional line

Boost/1.45/include/boost/mpi/status.hpp: In member function 'void machinelearning::tools::logger::listener(const boost::mpi::communicator&)': /Boost/1.45/include/boost/mpi/status.hpp:48: warning: dereferencing pointer '<anonymous>' does break strict-aliasing rules

Do you think this warnings can be create a problem?

I'm afraid I don't know. However, a similar topic seems to have been discussed on the Boost mailing list earlier:

http://lists.boost.org/Archives/boost/2009/12/160236.php

As far as I understand, the conclusion is that that warning is harmless for boost::optional.

Thanks, I have read the thread and I think also. On my OSX with gcc 4.0.1 the warning is not created on my Gentoo with 4.4.5 the warning is shown. Phil