October 2010 - Boost-users - lists.preview.boost.org

[date_time] POSIX time zones
by david.mcminn＠intelligentwellcontrols.com 28 Oct '10

28 Oct '10

Hi, I'm looking at using the Boost date_time library in an upcoming project and found a few inconsistencies when handling POSIX timezones. The date_time library seems to interpret the offset in a POSIX timezone string using the opposite sign as given in the standards. It also appears to use the DST offset as an offset from it's own local time, rather than the offset from UTC as specified in the standard. And obviously when calling to_string() will output the string with the incorrect values, even if you do fudge the values before creating the object. There was another query about this previously that went unanswered: http://lists.boost.org/boost-users/2009/11/53828.php Is there anyone maintaining the library, or somewhere to report bugs? Or is it just left as an exercise to the user to change? Thanks.

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[regex] BOOST_REGEX_MATCH_EXTRA not working?
by Christian Henning 28 Oct '10

28 Oct '10

Hi there, pretty new to boost::regex and though I'm just toying around with the documentation and some basic test code. The following code crashes when setting the BOOST_REGEX_MATCH_EXTRA symbol. #include <iostream> #include <boost/regex.hpp> void print_captures( const std::string& regx , const std::string& text ) { boost::regex e( regx ); boost::smatch what; std::cout << "Expression: \"" << regx << "\"\n"; std::cout << "Text: \"" << text << "\"\n"; // crash occurs in the next statement if( boost::regex_match( text, what, e, boost::match_extra )) { unsigned int i,j; std::cout << "**Match found ** \n Sub-Expressions:\n"; for( i = 0; i < what.size(); ++i ) { std::cout << " $" << i << " = \"" << what[i] << "\"\n"; } std::cout << " Captures:\n"; for( i = 0; i < what.size(); ++i ) { std::cout << " $" << i << " = {"; for( j = 0; j < what.captures(i).size(); ++j ) { } } } } int _tmain(int argc, _TCHAR* argv[]) { print_captures( "(.*)bar|(.*)bah", "abcbar" ); return 0; } I'm using MSVC10 express. Am I doing something wrong? Regards, Christian

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Are memory leaks reported by Boost.Test Microsoft Memory Leak Detection Enabling spurious or real?
by Paul A. Bristow 28 Oct '10

28 Oct '10

I've just added some code (ready for Inverse Gaussian distribution in preparation for Boost.Math). When I added one new section of kosher-looking C++ code, I started to see memory leaks reported: For example: *** No errors detected Detected memory leaks! Dumping objects -> {3485} normal block at 0x003611B0, 42 bytes long. Data: <class boost::mat> 63 6C 61 73 73 20 62 6F 6F 73 74 3A 3A 6D 61 74 {3484} normal block at 0x003635A0, 8 bytes long. Data: < 6 46 > B0 11 36 00 F8 34 36 00 ... But no filename is given as promised by http://msdn.microsoft.com/en-us/library/e5ewb1h3%28v=VS.80%29.aspx So I'm puzzled if/where I should look for a problem. (occurs for both debug and release) Or is this spurious? Should I just suppress the warnings? Paul --- Paul A. Bristow, Prizet Farmhouse, Kendal LA8 8AB UK +44 1539 561830 07714330204 pbristow(a)hetp.u-net.com

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Checking if a stand-alone function exists
by Ioannis Papadopoulos 28 Oct '10

28 Oct '10

Hi, Is there a way of checking if a stand-alone function exists? Thanks

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Serialization to human-readable formats
by Mateusz Loskot 28 Oct '10

28 Oct '10

Hi, I have a library reading/writing data from binary files. The library defines collection of type representing schema and data stored in the files. Definition of those elements is versioned, so one file can be slightly different than other. The de-/serialization from/to those files is implemented, so it's not part of my problem. I'm looking for recommendation of tools to based implementation of serialization of those objects to/from human-readable format like XML, JSON, other text-based formats. I'm looking for non-intrusive solution with degree of extensibility, so new formats can be added if needed. Ideally, if the mechanism could be aware of the versions of objects being serialized. I have never used the Boost Serialization library, but reading its documentation suggests it may fit the problem well. UDT can be instrumented with serialization mechanism in non-intrusive way. There are some archivers provided and, as far as I understand, new can be added. There are also other tools like Boost Property Tree or even Spirit Qi/Karma which technically could do the job, I think. There is also this naive option dangling around, which is implementation of << and >> operators for my types. Hoping I've described what I need fairly well, I'd like to ask for some suggestions which option sounds better. Perhaps I've missed some details or possibilities, thus any brainstorming is welcome. Best regards, -- Mateusz Loskot, http://mateusz.loskot.net Charter Member of OSGeo, http://osgeo.org Member of ACCU, http://accu.org

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[serialization] compile error on Mac OSX Tiger
by Philipp Münzel 27 Oct '10

27 Oct '10

Hi folks, after successfully deploying boost 1.44 on Windows and Linux, I now fail bitterly on Mac OSX. It is a Power PC with OSX 10.4 and gcc 4.0.1 When building boost with the following command: ./bjam --layout=system --with-serialization link=static variant=release threading=multi I get the following error: darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/basic_xml_archive.o darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o ./boost/archive/basic_binary_iarchive.hpp:74: error: invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>' "g++" -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -Wno-long-double -DBOOST_ALL_NO_LIB=1 -DNDEBUG -I"." -c -o "bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o" "libs/serialization/src/binary_iarchive.cpp" ...failed darwin.compile.c++ bin.v2/libs/serialization/build/darwin-4.0.1/release/link-static/threading- multi/binary_iarchive.o... ...failed updating 1 target... ...updated 74 targets... I did NOT set architecture=combined. I want a PPC only build. Any help is greatly appreciated. Regards Philipp

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[mpl] Accessing the nested value of an invoked placeholder
by Nathan Crookston 27 Oct '10

27 Oct '10

All, I'm writing some code to filter a vector_c of enum values. I have some existing structs which are templatized on those enum types and I'm having some trouble accessing those structs using placeholders. Following is code which hopefully clarifies: #include <boost/cstdint.hpp> #include <boost/mpl/assert.hpp> #include <boost/mpl/copy_if.hpp> #include <boost/mpl/vector_c.hpp> #include <boost/type_traits.hpp> #include <iostream> using boost::mpl::placeholders::_; enum MyEnum { val1, val2, }; template <MyEnum me> struct trait; template <> struct trait<val1> { typedef boost::uint16_t type; }; template <> struct trait<val2> { typedef boost::uint8_t type; }; //PROBLEM: The 'T' passed in is _, not what it substitutes for. template <typename T> struct traitMeta : trait<T::value> {}; typedef boost::mpl::vector_c<MyEnum, val1, val2> Vec; //For each item in Vec, determine if trait<_>::type matches T. If so, add it. template <typename T> struct TypeIs : boost::mpl::copy_if<Vec, boost::is_same<typename traitMeta<_>::type, T> > {}; BOOST_MPL_ASSERT((TypeIs<boost::uint16_t>::type, boost::mpl::vector_c<MyEnum, val1>)); int main() { return 0; } //END CODE I would assume from reading the book and documentation that mpl::apply or mpl::lambda would be best to use here, but my attempts to do so haven't been successful. I'd appreciate any guidance. Thanks, Nate

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[thread] recursive shared mutex
by JOAQUIN M. LOPEZ MUÑOZ 27 Oct '10

27 Oct '10

Hi, Boost.Threads provides a recursive mutex and a shared mutex, but no recursive *and* shared mutex. Would it be a good idea to add this to the library? How hard is it to construct a recursive shared mutex from boost::sahred_mutex (i.e. adding reentrancy to boost::shared_mutex)? Thank you, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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load a serialized object into Matlab?
by James C. Sutherland 27 Oct '10

27 Oct '10

I am just looking into the serialization library. It seems really nice for archiving using C++. Is there a way to import an archive generated by that library into another language (e.g. matlab)? I guess that one would need the rules for IO that the serialization archives use? Thanks, James

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Boost::Log named_scope issue
by Kieran Parsons 27 Oct '10

27 Oct '10

Can someone give me a working example of using named_scope for Boost::Log? I have tried something like: boost::shared_ptr< boost::log::core > logCore = boost::log::core::get(); logCore->add_global_attribute("Scope", boost::make_shared< boost::log::attributes::named_scope >()); boost::shared_ptr< boost::log::sinks::synchronous_sink< boost::log::sinks::text_file_backend > > sink = boost::log::init_log_to_file("myfile.txt"); sink->locked_backend()->set_formatter ( boost::log::formatters::stream << boost::log::formatters::named_scope( "Scope", keywords::iteration = boost::log::formatters::reverse, keywords::delimiter = " | ") ); logCore->add_sink(sink); BOOST_LOG_FUNCTION(); BOOST_LOG_NAMED_SCOPE("MyScope"); boost::log::sources::logger lg; BOOST_LOG(lg) << "TEST"; But it fails with an exception during the BOOST_LOG (I think due to missing attribute). As a general comment, the fact that none of the tutorial examples in the documentation work as-is makes it extremely difficult for a newbie to use (namespaces undefined, lack of include files etc). Thanks for your help.

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Function pointer to in/out_degree in BGL
by langermatze 27 Oct '10

27 Oct '10

Hi, I have a question regarding the boost graph library. I'd like to write a set of depth first search visitors to determine the maximum in/out-degree of a graph. The code should look pretty similar for both cases except for the function call to get the property of the visited node. boost:in_degree(node_id, graph) vs. boost:out_degree(vertexId, graph) At first glance the function signature pretty much the same, maybe: template<class Graph> graph_traits<Graph>::degree_size_type function(graph_traits<Graph>::vertex_descriptor u, const Graph &g) When looking at the BGL headers however, things seem to be a bit more complex, though. I tried to implement a generic dfs_visitor taking a general function pointer to get the in/out degree property of the visited node but I couldn't work out the type of the function pointer to be passed. All my attemtps failed badly. Hopefully, there is anybody on this list who has a better understanding of this business and could provide some help. Any hints/comments are appreciated! Thank you so much, Matthias -- View this message in context: http://boost.2283326.n4.nabble.com/Function-pointer-to-in-out-degree-in-BGL… Sent from the Boost - Users mailing list archive at Nabble.com.

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boost::thread within a dll
by Matheus Araújo Aguiar 27 Oct '10

27 Oct '10

Hello list, I'm facing some problems with a dll that uses boost::thread, boost::mutex and boost::condition_variable. Currently i am clueless about what is causing the problem and wanted to know if it is ok to use boost::thread and the others aforementioned within a dll. Basically, in a singleton in the dll, some threads are created and consume tasks (wrapped with boost::bind) from a queue, using boost::mutex to avoid concurrency problems and boost::condition_variable to sleep and wake, depending on emptiness of the task queue. Sorry for the brief and rapid description of my problem. Could anyone point to me if using these might cause problems with dlls? Thank you all, -- Matheus Araújo Aguiar Computer Scientist matheus.pit(a)gmail.com

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Boost XML compile problem XML_SAVE_FORMAT
by Kraus Philipp 27 Oct '10

27 Oct '10

Hello, I would like to use the Boost XML structure. Is the package within the SVN compatible under OSX, Linux and MS Windows? I'm using it at the moment under OSX, but I must use the code later under Linux and Windows. Under OSX I use the libxml2 Library, but in the boost/xml/dom/io.hpp I get an compile error on line 36 "xmlSaveCtxt *ctx = xmlSaveToIO (detail::stream_write_callback, detail::stream_close_callback, sb, enc, XML_SAVE_FORMAT);" the XML_SAVE_FORMAT isn't defined (message: not declared in this scope). My problem is at this time, that I must parse XML data of a stream objekt on-fly and extract some nodes (and this with a cross-plattform library). Is this the correct way to do the parsing with Boost XML? Thanks Phil

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[geometry][ggl] boost array adapted mechanism
by alfC 27 Oct '10

27 Oct '10

The documentation of GGL (Generic Geometry Library) is still scattered and hard to follow. As usual the first test I do on a library is to see how well it can be adapted to existing code. GGL seems to be able to adapt c_arrays and tuples as nD points. I was wondering if boost::array and fusion::vector can be adapted as well. The manual says it is but the header file boost/geometry/geometries/adapted/boost_array_as_ring.hpp doesn't seem to have that purpose. In the following example, p4 doesn't work as a point #include<boost/geometry/geometry.hpp> #include<boost/geometry/geometries/cartesian3d.hpp> #include<boost/geometry/geometries/adapted/boost_array_as_ring.hpp> #include <boost/geometry/geometries/adapted/c_array_cartesian.hpp> #include <boost/geometry/geometries/adapted/tuple_cartesian.hpp> #include<iostream> int main(){ using namespace boost::geometry; point<double, 3, cs::cartesian> p1(1,2,3); double p2[3] = {4,5,6}; boost::tuple<double, double, double> p3(7,8,9); boost::array<double, 3> p4={{10,11,12}}; std::clog << distance(p1,p2) << std::endl; std::clog << distance(p2,p3) << std::endl; std::clog << distance(p3,p4) << std::endl; return 0; } In other words, why there is not boost/geometry/geometries/adapted/boost_array_cartesian.hpp ? And it indeed this adaptation of boost::array is not included in the library, what steps should I follow to make a boost::array adapted to GGL? Thank you, Alfredo

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[boostbook+quickbook] : A way to write latex math
by Bo Jensen 27 Oct '10

27 Oct '10

This is just some info, that might interest others : I just recently discovered : http://www.mathjax.org which is quite nice for writing math equations. I use quickbook for my documentation. Fortunately it is very easy to incorporate MathJax into quickbook, so you can write : ''' <my-latex-math>some formula in latex</my-latex-math> ''' I just added the following to the stylesheet : <xsl:template name="system.head.content"> <script type="text/javascript" src="somepath/MathJax/MathJax.js"></script> </xsl:template> <xsl:template match="my-latex-math"> <xsl:value-of select="."/> </xsl:template> I should say I am a totally newbie to xsl stylesheets, so I might be doing something bad, never the less it works fine :-)

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[math] round to fraction
by gast128 27 Oct '10

27 Oct '10

Hello all, I couldn't find a functionality like 'round to fraction', which would try round a floating point value to its nearby fraction portion: round2fraction(1.4, 0.5); -> 1.5 round2fraction(1.8, 0.5); -> 2.0 round2fraction(1.0, 0.5); -> 1.0 round2fraction(1.25, 0.5); -> 1.5 round2fraction(-1.6, 0.5); -> -1.5 We have here a private implementation, but this is probably not as optimised as those numerical guru's can come up with. Is this a good suggestion to add to Boost.Math or overkill?

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boost with Visual Studio 2005 (VC8) and 2010 (VC10)
by andrew.marlow＠uk.bnpparibas.com 27 Oct '10

27 Oct '10

I am using boost 1.42 and am considering moving to 1.44.0. I see from the release notes that 1.44.0 has improved support for VC10 especially with the TR1 parts. That's good because I would also like to move to VC10, I am currently on VC8 (i.e. 2005). Please don't laugh. The move to boost 1.44.0, if it happens, will most likely happen before the move to VC10. So does boost 1.44.0 work with VC8? It is not in the supported compilers list. Regards, Andrew Marlow ___________________________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and delete this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is prohibited. Please refer to http://www.bnpparibas.co.uk/en/information/legal_information.asp?Code=ECAS-… for additional disclosures.

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getting started tutorial: link your program to a boost library
by Oliver Adams 27 Oct '10

27 Oct '10

Hi, I've just installed boost and have been going through the getting started guide (for unix variants). I am having problems with the section that discusses how to link your program to a boost library, using boost.regex as an example. $ c++ -I path/to/boost_1_44_0 example.cpp -o example \ ~/boost/stage/lib/libboost_regex-gcc34-mt-d-1_36.a That file does not exist. In fact there is no boost directory in my home directory. I'm not sure if running ./bjam install worked. It did build for a while, but the last few lines of output were: ...failed updating 60 targets... ...skipped 12 targets... ...updated 8866 targets... there seem to be a bunch of object files in /usr/local/boost_1_44_0/bin.v2/libs/regex/build/gcc-4.4.5/release/threading-multi unfortunately, when I try and use those files I end up getting: collect2: ld returned 1 exit status Any help's appreciated, Oliver

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[variant] assignment with possible casting
by Brian Budge 26 Oct '10

26 Oct '10

Hi all - I have a struct which holds parameter name/value pairs. The incoming data is not always exactly the same, as it's read from different sources, so sometimes I might have a parameter named "scale" which is a uint8_t, and other times "scale" is a uint32_t or int32_t. When I try to get() the data, I grab it as uint32_t, but it may be stored in the variant as an int32_t. We're using get<uint32_t> in that case, and this fails if the variant holds int32_t. On the other hand, since the variant can contain vector and matrix values, we can't simply use operator = for automatic casting (compile time errors). We don't expect to do any non-trivial casts (i.e. matrix to float or vice-versa). Are there any helper visitors or anything in the boost::variant library to assist with this, or do we need to write our own visitor? Code below. Thanks, Brian struct ParameterDesc { typedef boost::variant<bool, int32_t, uint32_t, float, Vec2f, Vec3f, Vec4f, Mat2f, Mat3f, Mat4f, std::string> ParamValue; typedef google::dense_hash_map<std::string, ParamValue> ParamMap; typedef ParamMap::iterator ParamMapIter; typedef ParamMap::const_iterator ParamMapCIter; std::string type; std::string name; ParamMap params; template <typename T> bool get(const std::string &name, T &val, const T &defaultValue) const { ParamMapCIter p_it; if( (p_it = params.find(name)) == params.end() ) { val = defaultValue; return false; } val = boost::get<T>(p_it->second); return true; } template <typename T> void get(const std::string &name, T &val) const { ParamMapCIter p_it; if( (p_it = params.find(name)) == params.end() ) { throw ParamException("couldn't find parameter with field name: " + name); } val = boost::get<T>(p_it->second); } ParameterDesc() { params.set_empty_key("__EMPTY__"); } };

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[asio] Error running as Windows service; runs fine from console
by Evan Burkitt 26 Oct '10

26 Oct '10

I have a Windows application that uses ASIO to implement a server that listens on a TCP port. When I run it from the console it starts and operates without error. When I start the same application as a Windows service (it's written to be run either way) my call to boost::asio::ip::tcp::acceptor::async_accept() immediately calls the passed accept handler to report error 995: "The I/O operation has been aborted because of either a thread exit or an application request". This occurs even when I run the service under the same account as the logged-in user. I know I'm a bit sketchy with the details of my implementation, but I think this is at least as likely to be some Windows weirdness as an ASIO problem per se. I'm hoping someone else has encountered and fixed this problem before. Thanks. -evan

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Re: [Boost-users] General design question about threading/concurrency
by Julien Martin 26 Oct '10

26 Oct '10

Hello Steve, Thanks for your post. Can you please tell me where to look for information about TBB tuning in the documentation? Julien. 2010/10/25 McKay, Steve F. <Steve.F.McKay(a)ssa.gov> > We have used Intel TBB in a situation similar to yours. We simulate the > U.S. population on 0.1 percent basis (about 300,000 people). We had > attempted to use raw threads before the TBB package became available, but it > was just too hard. The TBB package more or less automatically figures out > how many threads to use, creates the threads, and doles the work out to the > threads, using parallel_for. The biggest hurdle for us was learning how to > create function objects, since that is what parallel_for is set up to use. > But once you get the hang of it, writing your code that way actually helps > you write good code. You may have to do some things differently, or break > things down into smaller steps. > > > > Once you start using TBB, you will find other parts of it that are also > useful, such as parallel_reduce. Also note that, even though TBB is mostly > automatic, you should do some tuning because TBB may not have set the block > size well (how many people, or whatever you are simulating, it allocates to > a thread at one time). It may appear that TBB is not helping to reduce run > time, until you do some tuning. Read the tutorial. > > > > Steve McKay > > Steve.F.McKay(a)ssa.gov > > Social Security Administration > > Baltimore, Maryland 21235 > > > > *From:* boost-users-bounces(a)lists.boost.org [mailto: > boost-users-bounces(a)lists.boost.org] *On Behalf Of *Julien Martin > *Sent:* Monday, October 25, 2010 10:25 AM > *To:* boost-users(a)lists.boost.org > *Subject:* Re: [Boost-users] General design question about > threading/concurrency > > > > Ok. I will try that! > Thank you, > J. > > 2010/10/25 gast128 <gast128(a)hotmail.com> > > Julien Martin <balteo <at> gmail.com> writes: > > > Thanks gast128,I just installed TBB. Can you please tell me what to look > for > (which class, method or concept) in TBB? It is pretty vast...J. > > > 2010/10/25 gast128 <gast128 <at> hotmail.com>If u stay on the same > computer > > (i.e. plain x86 PC with multi cores or multi > > processors), I would recommend Intel's TBB, which splits up tasks > > automatically and tries to keep the processor busy. > > It would be nice if Boost / std C++ would have such a parallellism > library > > because it is an addition to using threads. > > Hello, > > tbb::parallel_for is probably where u will be interested in if the > individual > tasks are truely independent. > > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > >

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General design question about threading/concurrency
by Julien Martin 26 Oct '10

26 Oct '10

Hello, I am writing a program that needs to run N simulations with N >10 000. Obviously, I cannot instantiate N threads at the same time but I cannot run the simulations sequentially either. Can anyone please advise me how to design my program using the boost threading library and concepts please? Thanks in advance, Julien.

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[OT] Permuting graphs
by Cedric Laczny 26 Oct '10

26 Oct '10

Hi, of course, this general topic is off-topic as it is not directly relatod to the Boost Graph Library. And I want to apologize for that in the first place. However, I think that many using the BGL may also have to deal sometimes with such problems. Therefore, I am addressing this question here and hope to find some answers ;) The question is about permuting a graph in order to assess the statistical significance of a certain aspect of the original graph. Sometimes, it is enough to randomly re-wire the existing edges, but other times, more elaborate techniques are necessary. Do you have some literature or references addressing this fact? I am especially interested in topology-conserving permutations (of tripartite graphs). Thank you. Best reagards, Cedric Laczny

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Boost 1.44 compilation on AIX
by jessica.alfonsi＠unipd.it 25 Oct '10

25 Oct '10

Hello, I'm trying to compile without results the Boost 1.44 package embedded with the ALPS libraries (http://alps.comp-phys.org/mediawiki/index.php/Main_Page) on AIX version 6.1, Visual Age C++ compiler 10.1. Soon after launching, compilation stops with the following error messages: subprogram boost::date_time::gregorian_calendar_base<boost::date_time::year_month_day_base<boost::gregorian::greg_year,boost::gregorian::greg_month,boost::gregorian::greg_day>,unsigned int>::end_of_month_day(year_type, month_type) could not be inlined into boost::gregorian::date::date(year_type, month_type, day_type). 1500-029: (W) WARNING: subprogram std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Assign<std::_Ptrit<char,long,const char *,const char &,char *,char &> >(_Ptrit<char,long,const char *,const char &,char *,char &>, _Ptrit<char,long,const char *,const char &,char *,char &>, input_iterator_tag) could not be inlined into boost::char_separator<char,std::char_traits<char> >::operator() <std::_Ptrit<char,long,const char *,const char &,char *,char &>,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >(_Ptrit<char,long,const char *,const char &,char *,char &> &, _Ptrit<char,long,const char *,const char &,char *,char &>, basic_string<char,std::char_traits<char>,std::allocator<char> > &). 1500-029: (W) WARNING: subprogram std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Assign<std::_Ptrit<char,long,const char *,const char &,char *,char &> >(_Ptrit<char,long,const char *,const char &,char *,char &>, _Ptrit<char,long,const char *,const char &,char *,char &>, input_iterator_tag) could not be inlined into boost::char_separator<char,std::char_traits<char> >::operator() <std::_Ptrit<char,long,const char *,const char &,char *,char &>,std::basic_string<char,std::char_traits<char>,std::allocator<char> > >(_Ptrit<char,long,const char *,const char &,char *,char &> &, _Ptrit<char,long,const char *,const char &,char *,char &>, basic_string<char,std::char_traits<char>,std::allocator<char> > &). 1500-029: (W) WARNING: subprogram std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >::_Assign<wchar_t *>(wchar_t *, wchar_t *, input_iterator_tag) could not be inlined into boost::detail::lexical_cast<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,const wchar_t *,0,wchar_t>(param_type, wchar_t *, size_t). 1500-029: (W) WARNING: subprogram std::basic_string<char,std::char_traits<char>,std::allocator<char> >::_Assign<char *>(char *, char *, input_iterator_tag) could not be inlined into boost::detail::lexical_cast<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,const char *,0,char>(param_type, char *, size_t). 1500-029: (W) WARNING: subprogram boost::filesystem2::basic_directory_entry<boost::filesystem2::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,boost::filesystem2::wpath_traits> >::replace_filename(const string_type &, file_status, file_status) could not be inlined into boost::filesystem2::basic_directory_iterator<boost::filesystem2::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,boost::filesystem2::wpath_traits> >::increment(). 1500-029: (W) WARNING: subprogram boost::filesystem2::basic_directory_entry<boost::filesystem2::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,boost::filesystem2::wpath_traits> >::assign(const path_type &, file_status, file_status) could not be inlined into boost::filesystem2::basic_directory_iterator<boost::filesystem2::basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,boost::filesystem2::wpath_traits> >::m_init(const basic_path<std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t> >,boost::filesystem2::wpath_traits> &). 1500-029: (W) WARNING: subprogram boost::filesystem2::basic_directory_entry<boost::filesystem2::basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem2::path_traits> >::replace_filename(const string_type &, file_status, file_status) could not be inlined into boost::filesystem2::basic_directory_iterator<boost::filesystem2::basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem2::path_traits> >::increment(). 1500-029: (W) WARNING: subprogram boost::filesystem2::basic_directory_entry<boost::filesystem2::basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem2::path_traits> >::assign(const path_type &, file_status, file_status) could not be inlined into boost::filesystem2::basic_directory_iterator<boost::filesystem2::basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem2::path_traits> >::m_init(const basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem2::path_traits> &). "/gpfs/scratch/userexternal/jalfonsi/alps-2.0.0b4-r4959-src-with-boost/boost/boost/filesystem/v3/path.hpp", line 476.7: 1540-0716 (S) The template argument "boost::iterator" does not match the template parameter "class Derived". make[2]: *** [src/boost/CMakeFiles/boost.dir/__/__/boost/libs/filesystem/v3/src/operations.cpp.o] Error 1 make[1]: *** [src/boost/CMakeFiles/boost.dir/all] Error 2 make: *** [all] Error 2 Can someone tell me please if the compiler version could be the issue ? I see on Boost main page that 1.44 has been tested with Visual Age 11.1. I didn't have such problem with Boost 1.43 . Best regards Jessica

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boost MPI about finalize problem
by Jack Bryan 25 Oct '10

25 Oct '10

Hi I got a problem of MPI. I donot know whether it can be resolved in boost MPI. My program has 5 processes. All of them can run MPI_Finalize() and return 0. But, the whole program cannot be completed. In the MPI cluster job queue, it is still in running status. If I use 1 process to run it, no problem. Why ? My program: int main (int argc, char **argv) { MPI_Init(&argc, &argv); MPI_Comm_rank(MPI_COMM_WORLD, &myRank); MPI_Comm_size(MPI_COMM_WORLD, &mySize); MPI_Comm world; world = MPI_COMM_WORLD; if (myRank == 0) { do some things. } if (myRank != 0) { do some things. } cout << " I am rank " << rank << " I am before MPI_Finalize()" << endl; MPI_Finalize(); cout << " I am rank " << rank << " I am after MPI_Finalize()" << endl; return 0; } I can get the output " I am rank 0 (1, 2, ....) I am before MPI_Finalize() ". and " I am rank 0 I am after MPI_Finalize() " But, other processes do not printed out "I am rank ... I am after MPI_Finalize()" . It is weird. The process has reached the point just before MPI_Finalize(), why they are hanged there ? Are there other better ways to check this ? Any help is appreciated. And, some output files get wrong codes, which can not be readible. In 1-process case, the program can print correct results to these output files . Any help is appreciated. thanks Jack Oct. 24 2010

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