June 2015 - Boost-users - lists.preview.boost.org

[Variant]Maximum Limit of types in variant and fusion vector
by Elizabeta 21 Jun '15

21 Jun '15

Hi I want to use boost::variant with types more than 50. Until now I was using boost::variant with types up to 50 like this : #define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS #define BOOST_MPL_LIMIT_LIST_SIZE 50 #define BOOST_MPL_LIMIT_VECTOR_SIZE 50 #include <boost/variant.hpp> However , now if I change BOOST_MPL_LIMIT_LIST_SIZE and BOOST_MPL_LIMIT_VECTOR_SIZE to 100 it gives me compiler errors: Cannot open include file: 'boost/mpl/list/list100.hpp': No such file or directory So is 50 the maximum limit of types that can be put in the variant ? Also it seems that the maximum limit of types for vector fusion is 50, and can't increase that, and I want to have fusion vector for more than 50. Is this possible. Any suggestion -- View this message in context: http://boost.2283326.n4.nabble.com/Variant-Maximum-Limit-of-types-in-varian… Sent from the Boost - Users mailing list archive at Nabble.com.

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bimap : Ordering
by Norman Goldstein 20 Jun '15

20 Jun '15

When iterating though a bimap with a left iterator, I notice that for the pairs having the same left member e.g. (L, R1) (L,R2), (L,R3), ... the pairs are not in increasing R, but in the insertion order of the pairs. Is this an artefact of the design, or an intention? The actual bimap I am using is typedef boost::bimap< boost::bimaps::multiset_of< unsigned int >, boost::bimaps::multiset_of< unsigned int >, boost::bimaps::set_of_relation<>, boost::bimaps::with_info< int > > BMAP; I set it up so that info stores the insertion order index. Thanks.

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[Test] Small Enhancement Suggestion
by Merrill Cornish 19 Jun '15

19 Jun '15

I couldn't find the official way of suggesting an enhancement, but here goes: When a Boost Test currently runs in console mode, it logs the message lines "Running X test cases..." at the start and "*** Y failure detected in test suite 'My Test Suite' " at the end. That's all good. However, if <ahem> the test goes bad wrong and never reaches the end, there is no record in the log of which test did it. Suggestion: Change the initial log message to include the test suite name. For example, "Running X test cases from 'My Test Suite'" Merrill Cornish

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Re: [Boost-users] [IPC Named Mutex]
by Lorenzo Trivelli 19 Jun '15

19 Jun '15

> >One thing you could try...in interprocess's win32_api.hpp, there is another implementation of get_last_bootup_time() which uses WMI instead of the event log (there were warnings in the source about WMI not supporting hibernation/clock changes correctly, so beware). If you define >BOOST_INTERPROCESS_BOOTSTAMP_IS_LASTBOOTUPTIME >it should use that other version...give that a try. (in visual studio Project Properties -> C/C++ -> Preprocessor -> Preprocessor Definitions: add a semi colon ';' then t Thanks Tom, I'll try to fallback to the "old" WMI version (which BTW worked in the 1.44 version I we used before) I'd also be glad to fix it by myself and so help boost developement, , but I do not completely understand the usage of the system boot time... If boost needs in some way a tmestamp to differentiate things, in my opinion there are plenty of them to use instead of the last boot time. Obviously it has been done for a reason, but I cannot understand why :-D Best regards Lorenzo

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Linking Boost Log
by Florian Lindner 19 Jun '15

19 Jun '15

Hello, I try to compile/link a boost log example: http://www.boost.org/doc/libs/1_58_0/libs/log/example/doc/tutorial_file.cpp Using: g++ boostlog.cpp -lboost_log -lpthread with g++ 5.1.0 and boost 1.58 on arch linux. The trivial examples worked fine when I put #define BOOST_LOG_DYN_LINK 1 at the very first line. But with this example I get % g++ boostlog.cpp -lboost_log -lpthread /usr/bin/ld: /tmp/ccT2pz5x.o: undefined reference to symbol '_ZN5boost6detail12set_tss_dataEPKvNS_10shared_ptrINS0_20tss_cleanup_functionEEEPvb' /usr/lib/libboost_thread.so.1.58.0: error adding symbols: DSO missing from command line Probably a missing library but which one? I've not really found any linking documentation and I was guessing so far... Thanks, Florian

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[Serialization]: compiler error when registering derived class
by Mccall, Kurt E. (JSC-EG411) 18 Jun '15

18 Jun '15

I'm embarrassed to to ask this, but maybe someone could interpret this strange compiler error for me: I am registering a derived class everywhere that it is archived through a base class pointer: class MyDerivedClass : public MyBaseClass { … }; class AnotherClass { MyBaseClass *p; … void serialize(Archive &ar, unsigned int) { ar.register_type(static_cast<MyDerivedClass *>(NULL)); // compiler error here … ar & p; } At the line above, the error is error: no matching function for call to ‘boost::archive::xml_oarchive::register_type(AnotherClass:serialize (Archive&, unsigned int) [with Archive = boost::archive::xml_oarchive]::MyDerivedClass*)’ Does the complier think that MyDerivedClass is a member of boost::archive::xml_oarchive? Im using Boost 1.57 and gcc 4.4.7. Thanks.

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[Boost] Visual Studio 2013 Debugger Visualizers
by dariomt＠gmail.com 18 Jun '15

18 Jun '15

Hi, FYI, I just found VS2013 debugger visualizers for boost here: https://visualstudiogallery.msdn.microsoft.com/61f12e7a-bc62-4b2c-b02e-d660… Just download and double-click to install. So far works like a charm! I didn't find them listed in the wiki at https://svn.boost.org/trac/boost/wiki/DebuggerVisualizers It may be a good idea to update the wiki page with the VS2013 info. Regards, Dario

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[Pyhton] boost::shared_ptr problem between python modules
by Tamas.Ruszkai＠leica-geosystems.com 17 Jun '15

17 Jun '15

Hi All, I use - Visual Studio 2013 - boost 1.58 with NuGet - 64 bit Intel I have a class (called Log::FileSink) that I want to instantiate via a boost::shared_ptr. This class is derived from an abstract interface (Log::ISink) which is wrapped (Log::ISinkRealizer) boost::python::class_<Log::ISinkRealizer, boost::shared_ptr<Log:: ISinkRealizer>, boost::noncopyable>("ISink", boost::python::no_init) .def("AddEntry", boost::python::pure_virtual(&Log:: ISinkRealizer::AddEntry)) .def("ShallLog", boost::python::pure_virtual(&Log:: ISinkRealizer::ShallLog)); boost::python::class_<Log::FileSink, boost::shared_ptr<Log:: FileSink>, boost::python::bases<Log::ISink>, boost::noncopyable> ("FileSink", boost::python::init<const std::string&>()) .def("AddDomain", &Log::FileSink::AddDomain): When I create a python instance from the FileSink and I pass it to the constructor of another class inside the same module then it works fine. >>> import DiagnsoticsPy >>> logFile = DiagnsoticsPy.FileSink("system.log"); >>> logFile.AddDomain("Sensor.SensorController", DiagnsoticsPy.Severity.VerboseAndAbove); >>> logFile.AddDomain("Python.DI", DiagnsoticsPy.Severity.VerboseAndAbove); >>> logSource = DiagnsoticsPy.Source("Python.DI", logFile) boost::python::class_<Log::Source, boost::shared_ptr<Log::Source >>("Source", boost::python::init<const std::string&>()) .def(boost::python::init<const std::string&, boost:: shared_ptr<Log::ISink>>()); class DIAGNOSTICS_API Source { public: Source(const std::string& name, boost::shared_ptr<Log:: ISink> sink); }; However when I want to pass the same "logFile" instance to a method which is defined in another python module then the conversion between python and C++ fails. boost::python::class_<Sensor::SensorController, boost::shared_ptr <Sensor::SensorController>, boost::noncopyable>("SensorController", boost::python::init<boost::shared_ptr<Log::ISink>>()); class SENSORCONTROL_API SensorController : public boost:: enable_shared_from_this<SensorController> { public: explicit SensorController(boost::shared_ptr<Log::ISink> logSink); }; >>> import SensorControlPy >>> sensorController = SensorControlPy.SensorController(logFile); Python argument types in SensorController.__init__(SensorController, FileSink) did not match C++ signature: __init__(struct _object * __ptr64, class boost::shared_ptr<class Log::ISink>) If I put the all the Python bindings (also the SensorController) into the same python module then the call to the SensorController constructor works.

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[Random] Change in normal_distribution behavior between Boost 1.49 and Boost 1.56
by Jonathan Jones 17 Jun '15

17 Jun '15

Hi folks, Given the same set of inputs, this program is producing different answers in Boost 1.56 as compared to Boost 1.49: #include <boost/random/mersenne_twister.hpp> #include <boost/random/normal_distribution.hpp> int main() { boost::normal_distribution<double> dist(0.0, 1.0); boost::mt19937 gen(0); for (int ii=1; ii <= 5; ++ii) { printf("%2d) %g\n", ii, dist(gen)); } } I've isolated this to a change in the implementation of normal_distribution between these two versions (mt19937 is producing the same sequence of numbers with the same starting seed). My question is, is there any guarantee that this distribution is going to produce the same answers across different versions of Boost, given the same starting seed (zero in this case)? Thanks, Jon

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Building boost with clang on windows
by Ernest Zaslavsky 16 Jun '15

16 Jun '15

Any progress with it? Last time I tried to build boost 1.58 with clang 3.6.1 it didn't do it out of the box [Read More]<http://feeds.feedburner.com/~r/sizmek-blog/~6/1> [http://www.sizmek.com/Sizmek.png]<http://www.sizmek.com/>

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Re: [Boost-users] [Serialization] Non-default constructor and template class
by Mccall, Kurt E. (JSC-EG411) 15 Jun '15

15 Jun '15

> you should be able to simply define a private default constructor, if boost::serialization::acess is declared as a friend of your class. There is no need to initialize variables > that are in your serialize() function, as Boost.Serialization should set > their values after default construction. So in most cases the default constructor may be empty and > is trivial to implement, while it can not be called by any external entity (except if it is also declared „friend“). Thanks Beet, That makes it sound like overriding load_construct_data() and save_construct_data() is almost never necessary. In what cases would it be needed? Kurt

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C# application crashes due exception in exception_ptr.hpp
by Markus Pieper 15 Jun '15

15 Jun '15

Hi there, I´m new to boost so this might be a silly question. We have a simulation that is written in C++ and compiled as a static lib. It uses a few boost (v1.56) functions like thread. My job is to create a WPF GUI, that uses this lib. For that, I created a C++ CLR DLL which interacts as a wrapper between .NET GUI and the unmanaged libs. Everything works fine but closing my program results in a crash. This crash is described here: http://stackoverflow.com/questions/8144630/mixed-mode-c- cli-dll-throws-exception-on-exit And someone replied, that the reason for this lies in the exception_ptr.hpp beacause a "static exception_ptr ep" is being used instead of "exception_ptr ep". When I delete the static attribute, my program ends normally without the crash. My understanding of C++ is not that big, so I can´t say why it crashes here. But the boost programmers have a reason to do so. I also followed These advices (http://thread.gmane.org/gmane.comp.lib.boost.user/44515) but with no further luck. Best regards, Markus

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c++14 support
by Freddy Martinez Garcia 14 Jun '15

14 Jun '15

hi guys, I’m new with boost... can anyone tell me if boost library can be compiled with c++14 support ?? in that case, how can I do that ?? best regards ============================================= "El tamaño de tus logros depende del tamaño de tus metas." C++ and Qt Senior Developer Lic. Computer Science Buenos Aires, Argentina

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How do I use the output of -showme:link and -showme:compile to customize my boost mpi build?
by Cook, Rich 13 Jun '15

13 Jun '15

Hello, Apologies if this is redundant. I have not heard back so I thought I would try to restate my question more clearly in case it was overlooked. Hopefully I don't seem impatient, but I have a customer waiting on me and I'm not sure if I can help them. In an earlier thread, titled "Cannot build boost with MPI using Intel openMPI wrapper", Alain Miniussi suggested I execute the following commands: $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link I have done so and they appear to give me sane output: rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/hwloc/hwloc191/hwloc/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi -pthread My question is now, how do I use this output to configure boost to properly build using my Intel MPI wrappers? Currently, I'm seeing this in my output: ==============MPI Auto-configuration=============== MPI auto-detection failed: unknown wrapper compiler /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC Please report this error to the Boost mailing list: http://www.boost.org<http://www.boost.org/> You will need to manually configure MPI support. MPI launcher: mpirun -np ==================================================== Thanks so much for any help. -- ✐Richard Cook ✇ Lawrence Livermore National Laboratory Bldg-453 Rm-4024, Mail Stop L-557 7000 East Avenue, Livermore, CA, 94550, USA ☎ (office) (925) 423-9605 ☎ (fax) (925) 423-6961 --- Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. (opinions expressed herein are mine and not those of LLNL)

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future: unreferenced formal parameter 'lk'
by forumer＠smartmobili.com 13 Jun '15

13 Jun '15

Hello, I am using boost 1.58 and when I compile my project I have this annoying warning: Warning 4 warning C4100: 'lk' : unreferenced formal parameter C:\proj\boost\include\boost\thread\future.hpp When I look at source code I can see that lk is not used: future_state::state get_state(boost::unique_lock<boost::mutex>& lk) const { if(!done) { return future_state::waiting; } else { return future_state::ready; } } It would be great to fix it for the next release. Thanks

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Interprocess support for Pipe
by Lloyd 12 Jun '15

12 Jun '15

Hi, Does boost interprocess support "pipe" like operations. That is if process A writes something and when process B reads it, the memory content should be reset. If I use shared memory, it complicates things. Thanks, Lloyd

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Boost Random Numbers: Normal Distribution
by Hadidi, Lars 11 Jun '15

11 Jun '15

Hello, I tried to find out which method is used by the boost library to transform random numbers from a random number engine to the Gaussian Distribution. There are the Box-Muller-Method, Marsaglia's Polar Method and Ziggurat's algorithm out there, but i could not determine which of those is actually used by boost::normal_distribution<double>? I'd like to know which method is employed here. Thanks for reply in advance, sincerely, Lars

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Re: [Boost-users] "Re: Cannot build boost with MPI using Intel openMPI wrapper"
by Cook, Rich 11 Jun '15

11 Jun '15

I have looked over the docs at http://www.boost.org/doc/libs/1_55_0/doc/html/mpi/getting_started.html#mpi.… and I just don't really understand what the <find-shared-library> option does in this: using mpi : : <find-shared-library>lammpio <find-shared-library>lammpi++ <find-shared-library>mpi <find-shared-library>lam <find-shared-library>dl ; I don't understand how this maps into the instructions here: http://www.boost.org/build/doc/html/bbv2/reference/tools.html > Date: Wed, 10 Jun 2015 18:42:17 +0000 > From: "Cook, Rich" <cook47(a)llnl.gov> > To: "boost-users(a)lists.boost.org" <boost-users(a)lists.boost.org> > Subject: Re: [Boost-users] Boost-users Digest, Vol 4163, Issue 2 > Message-ID: <4F5E3BDC-CDF6-442E-BB02-054510A61C61(a)llnl.gov> > Content-Type: text/plain; charset="utf-8" > >> >> Hi, here is the output of those commands, modified to reflect the actual tool I told boost to use, which is mpiCC, not mpicxx. What should I do with this output, and why does boost not accept it? Thanks! >> >> rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile >> -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/hwloc/hwloc191/hwloc/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi -pthread >> >> rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link >> -pthread -Wl,-rpath -Wl,/usr/local/tools/openmpi-intel-debug-1.8.4/lib -Wl,--enable-new-dtags -L/usr/local/tools/openmpi-intel-debug-1.8.4/lib -lmpi >> >> >> >> Subject: Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper >> From: Alain Miniussi (alain.miniussi_at_[hidden]) >> Date: 2015-06-10 10:07:41 >> >> * Next message: Hadidi, Lars: "[Boost-users] Boost Random Numbers: Normal Distribution"<http://lists.boost.org/boost-users/2015/06/84409.php> >> * Previous message: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> >> * In reply to: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> >> >> ________________________________ >> >> What is the result of: >> $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile >> $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link >> ? >> >> >> On 10/06/2015 11:08, Boris Sch?ling wrote: >>> On Wed, 10 Jun 2015 02:37:26 +0200, Cook, Rich <cook47_at_[hidden]> wrote: >>> >>>> Hello, I'm seeing this in my build output. I'm hoping someone can >>>> help me find out what the actual problem is. Thanks for any assistance. >>>> >>>> ===============MPI Auto-configuration=============== >>>> MPI auto-detection failed: unknown wrapper compiler >>>> /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC >>>> Please report this error to the Boost mailing list: http://www.boost.org<http://www.boost.org/> >>>> You will need to manually configure MPI support. >>>> MPI launcher: mpirun -np >>>> ==================================================== >>>> > > -- > ?Richard Cook > ? Lawrence Livermore National Laboratory > Bldg-453 Rm-4024, Mail Stop L-557 > 7000 East Avenue, Livermore, CA, 94550, USA > ? (office) (925) 423-9605 > ? (fax) (925) 423-6961 > --- > Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. > (opinions expressed herein are mine and not those of LLNL) > > > > > ------------------------------ > > Message: 2 > Date: Wed, 10 Jun 2015 16:56:04 -0700 > From: Nicholas Yue <yue.nicholas(a)gmail.com> > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Modify an asio echo server so that it does > not send message back to client > Message-ID: <5578CE94.9000304(a)gmail.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > > > On 2015-06-09 5:14 PM, Gavin Lambert wrote: >> >> You need to pass the bytes_transferred to process as well, so that it >> knows how much data was actually read and therefore how much of data_ >> is actually valid. Don't forget that this may be less than max_length >> and may be different from what the client actually sent (ie. data sent >> in one chunk may be received in multiple chunks). > Thanks Gavin. > > I now have a process() method with the bytes_transferred parameter. > > Newbie question, how do I know the last chunk has been sent, so > that I can now process the data (which will be binary) ? > > Is there some simple example which illustrate this I can refer to ? > > Cheers > Nicholas Yue > > > > ------------------------------ > > Message: 3 > Date: Thu, 11 Jun 2015 12:16:06 +1200 > From: Gavin Lambert <gavinl(a)compacsort.com> > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Modify an asio echo server so that it does > not send message back to client > Message-ID: <mlak07$9ns$1(a)ger.gmane.org> > Content-Type: text/plain; charset=windows-1252; format=flowed > > On 11/06/2015 11:56, Nicholas Yue wrote: >> I now have a process() method with the bytes_transferred parameter. >> >> Newbie question, how do I know the last chunk has been sent, so >> that I can now process the data (which will be binary) ? >> >> Is there some simple example which illustrate this I can refer to ? > > There isn't any inherent way to know. TCP is a stream protocol -- you > just receive a continuous stream of bytes with no demarcation of any kind. > > You will need to define something at the application layer of the > protocol to decide when a logical unit is complete, typically either by > inserting some delimiter that you know can never occur mid-message or by > sending the length of the following data early on. > > > Note that ASIO does provide some helper methods for these scenarios -- > instead of using async_read_some, which just returns data as it becomes > available, you can use asio::async_read (which you can tell to not > return until it has read a specific number of bytes) or > asio::async_read_until (read until a specific delimiter). (It's tricky, > though not impossible, to do a combination of the two -- but it's > something you should avoid if you have a choice.) > > So for a line-based protocol you could async_read_until a CRLF (or just > LF, depending on the other end), or for a binary protocol that sends a > 4-byte length followed by a payload you could async_read 4 bytes to get > the length, then async_read that many bytes to get the payload. > > > > > ------------------------------ > > Message: 4 > Date: Wed, 10 Jun 2015 23:00:42 -0400 > From: Tim Song <t.canens.cpp(a)gmail.com> > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Boost Random Numbers: Normal Distribution > Message-ID: > <CAPQZVxs3YoUgkzmqCp=K=4DtjJ3x_ugbbiKm+uKE0q9rvBgSdw(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > On Wed, Jun 10, 2015 at 11:59 AM, Hadidi, Lars < > lhadidi(a)students.uni-mainz.de> wrote: >> >> I'd like to know which method is employed here. >> > Have you tried reading the implementation ( > http://www.boost.org/doc/libs/1_58_0/boost/random/normal_distribution.hpp)? > > Hint: The first comment after the includes is > > // tables for the ziggurat algorithm > -------------- next part -------------- > HTML attachment scrubbed and removed > > ------------------------------ > > Message: 5 > Date: Thu, 11 Jun 2015 08:06:04 +0200 > From: Oswin Krause <Oswin.Krause(a)ruhr-uni-bochum.de> > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Boost Random Numbers: Normal Distribution > Message-ID: > <ea13f1e81a2759ab472963b5e8e07770(a)mpx2.rz.ruhr-uni-bochum.de> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Recently, it changed to Ziggurat's method. > > On 2015-06-10 17:59, Hadidi, Lars wrote: >> Hello, >> >> I tried to find out which method is used by the boost library to >> transform random numbers from a random number engine to the Gaussian >> Distribution. >> >> There are the Box-Muller-Method, Marsaglia's Polar Method and >> Ziggurat's algorithm out there, but i could not determine which of >> those is actually used by >> >> boost::normal_distribution<double>? >> >> I'd like to know which method is employed here. >> >> Thanks for reply in advance, >> >> sincerely, >> >> Lars >> >> >> _______________________________________________ >> Boost-users mailing list >> Boost-users(a)lists.boost.org >> http://lists.boost.org/mailman/listinfo.cgi/boost-users > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > ------------------------------ > > End of Boost-users Digest, Vol 4164, Issue 1 > ******************************************** -- ✐Richard Cook ✇ Lawrence Livermore National Laboratory Bldg-453 Rm-4024, Mail Stop L-557 7000 East Avenue, Livermore, CA, 94550, USA ☎ (office) (925) 423-9605 ☎ (fax) (925) 423-6961 --- Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. (opinions expressed herein are mine and not those of LLNL)

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Modify an asio echo server so that it does not send message back to client
by Nicholas Yue 11 Jun '15

11 Jun '15

Hi, I am writing a simple server that is listening to binary data bucket being sent by a client. I am basing the prototype server on the following: http://www.boost.org/doc/libs/1_55_0/doc/html/boost_asio/example/cpp03/echo… I am wonder what is the correct way to modify the example so that it does not echo the result back to the client. The amount of binary data sent are substantial, more importantly, the client has no way to handle the incoming data on the socket. Cheers -- Nicholas Yue Graphics - Arnold, Alembic, RenderMan, OpenGL, HDF5 Custom Dev - C++ porting, OSX, Linux, Windows http://au.linkedin.com/in/nicholasyue https://vimeo.com/channels/naiadtools

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Re: [Boost-users] Boost-users Digest, Vol 4163, Issue 2
by Cook, Rich 10 Jun '15

10 Jun '15

I made a mistake. I used mpicxx in the below commands. If I use mpiCC, it gives the exact same output. > Date: Wed, 10 Jun 2015 18:38:26 +0000 > From: "Cook, Rich" <cook47(a)llnl.gov> > To: "boost-users(a)lists.boost.org" <boost-users(a)lists.boost.org> > Subject: Re: [Boost-users] "Re: Cannot build boost with MPI using > Intel openMPI wrapper" > Message-ID: <856FE4B0-86E0-4E87-90AE-65A0C4653D36(a)llnl.gov> > Content-Type: text/plain; charset="utf-8" > > Hi, here is the output of those commands, modified to reflect the actual tool I told boost to use, which is mpiCC, not mpicxx. What should I do with this output, and why does boost not accept it? Thanks! > > rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile > -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/hwloc/hwloc191/hwloc/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi -pthread > > rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link > -pthread -Wl,-rpath -Wl,/usr/local/tools/openmpi-intel-debug-1.8.4/lib -Wl,--enable-new-dtags -L/usr/local/tools/openmpi-intel-debug-1.8.4/lib -lmpi > > > > Subject: Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper > From: Alain Miniussi (alain.miniussi_at_[hidden]) > Date: 2015-06-10 10:07:41 > > * Next message: Hadidi, Lars: "[Boost-users] Boost Random Numbers: Normal Distribution"<http://lists.boost.org/boost-users/2015/06/84409.php> > * Previous message: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> > * In reply to: Boris Sch??ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> > > ________________________________ > > What is the result of: > $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile > $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link > ? > > > On 10/06/2015 11:08, Boris Sch?ling wrote: >> On Wed, 10 Jun 2015 02:37:26 +0200, Cook, Rich <cook47_at_[hidden]> wrote: >> >>> Hello, I'm seeing this in my build output. I'm hoping someone can >>> help me find out what the actual problem is. Thanks for any assistance. >>> >>> ===============MPI Auto-configuration=============== >>> MPI auto-detection failed: unknown wrapper compiler >>> /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC >>> Please report this error to the Boost mailing list: http://www.boost.org<http://www.boost.org/> >>> You will need to manually configure MPI support. >>> MPI launcher: mpirun -np >>> ==================================================== >>> -- ✐Richard Cook ✇ Lawrence Livermore National Laboratory Bldg-453 Rm-4024, Mail Stop L-557 7000 East Avenue, Livermore, CA, 94550, USA ☎ (office) (925) 423-9605 ☎ (fax) (925) 423-6961 --- Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. (opinions expressed herein are mine and not those of LLNL)

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Re: [Boost-users] "Re: Cannot build boost with MPI using Intel openMPI wrapper"
by Cook, Rich 10 Jun '15

10 Jun '15

Hi, here is the output of those commands, modified to reflect the actual tool I told boost to use, which is mpiCC, not mpicxx. What should I do with this output, and why does boost not accept it? Thanks! rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/hwloc/hwloc191/hwloc/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi/opal/mca/event/libevent2021/libevent/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include -I/usr/local/tools/openmpi-intel-debug-1.8.4/include/openmpi -pthread rcook@rzgpu2 (~ ): /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link -pthread -Wl,-rpath -Wl,/usr/local/tools/openmpi-intel-debug-1.8.4/lib -Wl,--enable-new-dtags -L/usr/local/tools/openmpi-intel-debug-1.8.4/lib -lmpi Subject: Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper From: Alain Miniussi (alain.miniussi_at_[hidden]) Date: 2015-06-10 10:07:41 * Next message: Hadidi, Lars: "[Boost-users] Boost Random Numbers: Normal Distribution"<http://lists.boost.org/boost-users/2015/06/84409.php> * Previous message: Boris SchÃ¤ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> * In reply to: Boris SchÃ¤ling: "Re: [Boost-users] Cannot build boost with MPI using Intel openMPI wrapper"<http://lists.boost.org/boost-users/2015/06/84407.php> ________________________________ What is the result of: $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:compile $/usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpicxx --showme:link ? On 10/06/2015 11:08, Boris Schäling wrote: > On Wed, 10 Jun 2015 02:37:26 +0200, Cook, Rich <cook47_at_[hidden]> wrote: > >> Hello, I'm seeing this in my build output. I'm hoping someone can >> help me find out what the actual problem is. Thanks for any assistance. >> >> ===============MPI Auto-configuration=============== >> MPI auto-detection failed: unknown wrapper compiler >> /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC >> Please report this error to the Boost mailing list: http://www.boost.org<http://www.boost.org/> >> You will need to manually configure MPI support. >> MPI launcher: mpirun -np >> ==================================================== >> >> >> Here are the commands that generated it: >> >> + mkdir -p //usr/local/tools/boost-intel-1.57.0 >> + mkdir -p //usr/local/bin >> + pushd boost_1_57_0 >> /tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0 >> /tmp/dpkg-mkdeb.1Tdcc4kqMi/src >> + ./bootstrap.sh --prefix=/usr/local/tools/boost-intel-1.57.0 >> + echo 'using mpi : >> /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC ;' >> >> tools/build/src/user-config.jam >> >> + ./b2 -j20 --debug-configuration install > > It's a while ago that I was using Boost.MPI. But if auto-detection > fails, you could pass MPI-related options explicitly. There is this > remark in the MPI Jamfile: > > # If your MPI implementation does not have a wrapper compiler, or the MPI > # auto-detection code does not work with your MPI's wrapper compiler, > # you can pass MPI-related options explicitly via the second parameter > to the > # mpi module: > # > # using mpi : : <find-shared-library>lammpio > <find-shared-library>lammpi++ > # <find-shared-library>mpi <find-shared-library>lam > # <find-shared-library>dl ; > > HTH, > Boris > >> [...] > > _______________________________________________ > Boost-users mailing list > Boost-users_at_[hidden] > http://lists.boost.org/mailman/listinfo.cgi/boost-users -- --- Alain -- ✐Richard Cook ✇ Lawrence Livermore National Laboratory Bldg-453 Rm-4024, Mail Stop L-557 7000 East Avenue, Livermore, CA, 94550, USA ☎ (office) (925) 423-9605 ☎ (fax) (925) 423-6961 --- Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. (opinions expressed herein are mine and not those of LLNL)

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Cannot build boost with MPI using Intel openMPI wrapper
by Cook, Rich 10 Jun '15

10 Jun '15

Hello, I'm seeing this in my build output. I'm hoping someone can help me find out what the actual problem is. Thanks for any assistance. ===============MPI Auto-configuration=============== MPI auto-detection failed: unknown wrapper compiler /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC Please report this error to the Boost mailing list: http://www.boost.org You will need to manually configure MPI support. MPI launcher: mpirun -np ==================================================== Here are the commands that generated it: + mkdir -p //usr/local/tools/boost-intel-1.57.0 + mkdir -p //usr/local/bin + pushd boost_1_57_0 /tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0 /tmp/dpkg-mkdeb.1Tdcc4kqMi/src + ./bootstrap.sh --prefix=/usr/local/tools/boost-intel-1.57.0 + echo 'using mpi : /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC ;' >> tools/build/src/user-config.jam + ./b2 -j20 --debug-configuration install # ====================================================================== And here is the full output of that last b2 command: notice: found boost-build.jam at /tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/boost-build.jam notice: loading Boost.Build from /tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src notice: Searching '/etc' '/g/g0/rcook' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src' '/usr/share/boost-build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/kernel' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/util' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/tools' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/contrib' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/.' for site-config configuration file 'site-config.jam'. notice: Configuration file 'site-config.jam' not found in '/etc' '/g/g0/rcook' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src' '/usr/share/boost-build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/kernel' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/util' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/tools' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/contrib' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/.'. notice: Searching '/g/g0/rcook' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src' '/usr/share/boost-build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/kernel' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/util' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/build' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/tools' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/contrib' '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src/.' for user-config configuration file 'user-config.jam'. notice: Loading user-config configuration file 'user-config.jam' from '/tmp/dpkg-mkdeb.1Tdcc4kqMi/src/boost_1_57_0/tools/build/src'. ===============MPI Auto-configuration=============== MPI auto-detection failed: unknown wrapper compiler /usr/local/tools/openmpi-intel-debug-1.8.4/bin/mpiCC Please report this error to the Boost mailing list: http://www.boost.org You will need to manually configure MPI support. MPI launcher: mpirun -np ==================================================== -- ✐Richard Cook ✇ Lawrence Livermore National Laboratory Bldg-453 Rm-4024, Mail Stop L-557 7000 East Avenue, Livermore, CA, 94550, USA ☎ (office) (925) 423-9605 ☎ (fax) (925) 423-6961 --- Information Management & Graphics Grp., Services & Development Div., Integrated Computing & Communications Dept. (opinions expressed herein are mine and not those of LLNL)

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eval_if fails - problem for C++ guru
by Robert Ramey 07 Jun '15

07 Jun '15

I've been having a very difficult time with a problem illustrated by the following program: It looks like the eval_if in line 51 isn't working correctly. That is, the metafuction get_promotion_policy is being invoked when both types are not safe types. I've been working on this for two days and can't see what's going on. Any help from a TMP genious would be much appreciated. #include <type_traits> #include <boost/mpl/and.hpp> #include <boost/mpl/or.hpp> #include <boost/mpl/if.hpp> #include <boost/mpl/eval_if.hpp> #include <boost/mpl/identity.hpp> struct safe_tag {}; template<class T, class P = void> struct safe : public safe_tag { T m_t; typedef P PromotionPolicy; }; template<class T> struct is_safe : public //std::is_arithmetic<T> std::is_base_of<safe_tag, T> {}; template<class T, class U> struct common_policies { static_assert( boost::mpl::or_< is_safe<T>, is_safe<U> >::value, "at least one type must be a safe type" ); template<typename Z> struct get_promotion_policy { static_assert( is_safe<Z>::value, "only safe types have promotion policies" ); typedef typename Z::PromotionPolicy type; }; // if both types are safe, the policies have to be the same! static_assert( boost::mpl::eval_if< boost::mpl::and_< is_safe<T>, is_safe<U> >, typename std::is_same< typename get_promotion_policy<T>::type, typename get_promotion_policy<U>::type >::type, boost::mpl::identity<boost::mpl::true_> >::type::value, "if both types are safe, the policies have to be the same!" ); // now we've verified that there is no conflict between policies // return the one from the first safe type typedef typename boost::mpl::if_< is_safe<T>, T, typename boost::mpl::if_< is_safe<U>, U, // boost::mpl::void_ >::type >::type safe_type; typedef typename get_promotion_policy<safe_type>::type promotion_policy; }; common_policies<int, safe<int> > t; int main(){ return 0; }

3 3

boost::tuple in std::map
by Uthpal Urubail 06 Jun '15

06 Jun '15

Experts, I am using boost::tuple as key in std::map. I would like to write my own comparison method (considering tolerance in comparison) The default comparison defined in tuple_comparison.hpp is of no use to me. Any help in this is highly appreciated. Regards, UJ

4 3

[Log] Failed to compile applications with Boost.Log
by lin li 05 Jun '15

05 Jun '15

Hi, guys. I am trying to to compile the tutorial code from Boost.Log with the trivial logger. But it fails with the error: "‘boost::log::v2s_mt_posix::trivial::boost’ has not been declared" OS: OracleLinux 6.6 G++: 4.4.7 Boost: 1.57 I have googled a lot about it, but it seems that all answers are related to some linking error, but this one is different. It seems that it does not even find the declaration in the first place. Anyone has similar experience?

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