Originally posted by: Sunanda_Gamage

Hi all,

I'm trying to compile a program that uses boost::lockfree::queue with IBM XLC++ 13.1.2 and I get a number of errors similar to

"boost/parameter/parameters.hpp:718:22: error: pasting formed 'BOOST_PP_SEQ_ELEM_0(', an invalid preprocessing token"

This seems to come from the "##" preprocessing operator in boost/preprocessor/list/adt.hpp

define BOOST_PP_LIST_IS_CONS_D(list) BOOST_PP_LIST_IS_CONS_ ## list

I'm on a POWER8 (Little Endian) machine with SUSE Linux Enterprise Server 12. I have tried boost 1.55 (with the patch for XLC++ 13.1) and 1.58 and get similar results.

The following compiler flags are used.

/usr/bin/xlc++  -+  -qlanglvl=extended0x -qthreaded -ferror-limit=500 -O4 -q64

Full compile report and my system information are attached.

Anyone has any idea why this is happening?

Thanks in advance!

Sunanda

Originally posted by: hstong

Hello Sunanda,

This issue may be avoided by compiling with the option -qnoxlcompatmacros. An update to the patch file is pending to address this issue.
I hope this helps.

Sincerely,



Hubert Tong

Originally posted by: Sunanda_Gamage

Hi Hubert,

Thanks for the answer!

 I haven't been able to try this on our Power8 machine yet. I will post the results as soon as I do.

Sunanda

Originally posted by: Sunanda_Gamage

Hi Hubert,

The -qnoxlcompatmacros option fixed the compilation issue. Thanks for the answer!

But as DaveyC has pointed out, atomic support is not implemented in xlc and this is a major barrier to the project we're doing. Any idea when this might get implemented?

Originally posted by: hstong

Hi Sunanda,

Support for C++11 atomics is under consideration for a future release. For more information, feel free to contact me directly via e-mail at [my username]<at>ca.ibm.com.

Sincerely,



Hubert Tong

Originally posted by: hstong

Hi Sunanda,

As announced yesterday, C++11 atomics is now available for XL C/C++ for Linux™, V13.1.3 on little endian distributions:

http://www.ibm.com/common/ssi/cgi-bin/ssialias?subtype=ca&infotype=an&appname=iSource&supplier=897&letternum=ENUS215-517

You may need to link with -latomic for boost::lockfree. Please let us know if we could be of further assistance.

Sincerely,



Hubert Tong

Originally posted by: DaveyC

On the z/OS platform IBM have not implemented atomics yet (or threads). It's about time they did IMO!