Re: [Boost-users] C++11 ABI stability

Subject: Re: [Boost-users] C++11 ABI stability
From: Marek Skalický (mskalick_at_[hidden])
Date: 2017-06-29 07:40:02

Thank you all for your answers.

So generally boost is not affected by -std=c++XY. Asio library is
exception. I hope I get it right.

Probably mongo-cxx-driver upstream was referring to gcc dual ABI
problem and that it can affect Boost too.

Thanks again,
Marek

Miloslav Marik via Boost-users píše v St 21. 06. 2017 v 17:23 +0200:
> The problem is in ASIO library. S.
> 
> 2017-06-21 15:44 GMT+02:00 Steve Lorimer via Boost-users <boost-users
> @lists.boost.org>:
> > They are probably referring to the changes wrt std::string and
> > std::list
> > 
> > Pre-C++11 a lot of standard libraries used copy-on-write strings,
> > which was forbidden in C++11.
> > 
> > std::list now has to have O(1) size, which is another possibly ABI
> > incompatible change.
> > 
> > More details here: https://gcc.gnu.org/onlinedocs/libstdc++/manual/
> > using_dual_abi.html
> > 
> > On 21 June 2017 at 01:09, Marek Skalický via Boost-users <boost-use
> > rs_at_[hidden]> wrote:
> > > Hi,
> > > mongo-cxx-driver notices this:
> > > "Important note about C++11/C++14: The boost libraries do not
> > > offer a
> > > stable ABI across different versions of the C++ standard. As a
> > > result,
> > > you must ensure that your application, the C++ driver, and boost
> > > are
> > > all built with the same language standard. In particular, if you
> > > are
> > > building the C++ driver with C++11 enabled, you must also build
> > > your
> > > application with C++11 enabled, and link against a C++11 compiled
> > > boost. " [1]
> > > 
> > > Is it true? What changes with new standard? (or is this only
> > > related to
> > > ABI change in gcc introduced by c++11?)
> > > 
> > > I'm interested mainly in libraries: filesystem, chrono, thread,
> > > system
> > > and regex
> > > 
> > > Thanks,
> > > Marek
> > > 
> > > [1] http://mongodb.github.io/mongo-cxx-driver/legacy-v1/installat
> > > ion/#s
> > > cons-options-when-compiling-the-c-driver
> > > _______________________________________________
> > > Boost-users mailing list
> > > Boost-users_at_[hidden]
> > > https://lists.boost.org/mailman/listinfo.cgi/boost-users
> > > 
> > 
> > 
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > https://lists.boost.org/mailman/listinfo.cgi/boost-users
> 
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> https://lists.boost.org/mailman/listinfo.cgi/boost-users