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Re: [Boost-users] [Boost.Test] does not always include checkpoint information
by Peter Soetens 19 Dec '10

19 Dec '10

On Thu, Dec 2, 2010 at 8:34 PM, Gennadiy Rozental <rogeeff(a)gmail.com> wrote: > Peter Soetens <peter.soetens <at> gmail.com> writes: > >> >> I'm using boost 1.40. When parsing the output of a Boost.Test xml file, I >> sometimes get this error: >> >> "test-result.xml:cvc-complex-type.2.4.b: The content of element 'Exception' is >> not complete. One of '{LastCheckpoint}' is expected." (output from Hudson Test >> plugin). > > Can't really comment on this output. This is something generated by your tool. > Can you should the Boost.Test xml? The output is: ./testboost --log_level=all --report_level=detailed --output_format=xml <TestLog><TestSuite name="Master Test Suite"><TestSuite name="TestSuite"><TestCase name="testThrow"><Exception>unknown type</Exception><TestingTime>0</TestingTime></TestCase></TestSuite></TestSuite></TestLog><TestResult><TestSuite name="Master Test Suite" result="failed" assertions_passed="0" assertions_failed="1" expected_failures="0" test_cases_passed="0" test_cases_failed="1" test_cases_skipped="0" test_cases_aborted="1"><TestSuite name="TestSuite" result="failed" assertions_passed="0" assertions_failed="1" expected_failures="0" test_cases_passed="0" test_cases_failed="1" test_cases_skipped="0" test_cases_aborted="1"><TestCase name="testThrow" result="aborted" assertions_passed="0" assertions_failed="1" expected_failures="0"></TestCase></TestSuite></TestSuite></TestResult> The code is : struct A {}; BOOST_FIXTURE_TEST_SUITE( TestSuite, A ) BOOST_AUTO_TEST_CASE(testThrow) { throw A(); } BOOST_AUTO_TEST_SUITE_END() > >> It appears that It does not consider the entry point of the unit test function >> as a checkpoint, while the documentation says it does. > > I do not believe so. Can you point me to the relevant page? >From : http://www.boost.org/doc/libs/1_45_0/libs/test/doc/html/utf/user- guide/test-output/test-log.html "In most cases The UTF can't provide an exact location, where system error occurs or uncaught C++ exception is thrown from. To be able to pinpoint it as close as possible the UTF keeps track of checkpoints - the location a test module passed through. ***A test case entrance and exit points, a test tool invocation point the UTF tracks automatically***. Any other checkpoints should be entered by you manually. The test log provides two macros for this purpose: BOOST_TEST_CHECKPOINT - to specify a "named" checkpoint and BOOST_TEST_PASSPOINT - to specify an "unnamed" checkpoint." *** emphasis mine. So I would expect that it appears as a checkpoint in the XML output, with the line number pointing at declaration of the test name. > >> I can 'fix' this by >> inserting check/pass points at the beginning of every function, but shouldn't >> Boost.Test do this automatically ? > > Test log output reports test case enter/exit events, thus you should be able to > figure this out already. I don't get any line number when it's not explicitly present as a checkpoint xml tag for example. The xml data is read by an external tool, that then tries to relate the errors to files and linenumbers. As you can see from the XML output above. No filename nor linenumber is listed, although something definately went wrong. A 'LastCheckPoint' tag would provide that information. Could I add a checkpoint in all my fixtures in order to 'inject' an initial checkpoint in each test ? Peter

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[MPL] Applying a boost::mpl::list to the template parameter of a type.
by Andrew Hundt 18 Dec '10

18 Dec '10

Hello, I have a class that requires a boost::variant containing shared pointers to various types as follows: template <typename ToySharedPtrVariant, typename ColorSharedPtrVariant> class ToyPicker { typedef std::pair< ToySharedPtrVariant, ColorSharedPtrVariant > toyAndColorPair; typedef std::map< std::string, std::vector< toyAndColoPair > > stringToToyColorPairMap; // ... methods that use the defined types... } This class currently requires template parameters of the following form to compile: ToyPicker< boost::variant< boost::shared_ptr<ToyModel> >, boost::variant< boost::shared_ptr<BlueToy>, boost::shared_ptr<RedToy>, boost::shared_ptr<GreenToy> > > toyPicker; How do I use an mpl list so that I can allow the following much simpler definition for users, then convert it into the one above inside my class? ToyPicker< boost::mpl::list< ToyModel >, boost::mpl::list< BlueToy, RedToy, GreenToy > > toyPicker; I really appreciate all of the user help you all give, and hope that as I become more experienced I may be able to contribute myself. Cheers! Andrew Hundt

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boost::date_time: date & time in RFC 3339 format
by Stuart 17 Dec '10

17 Dec '10

Hello I'm trying to use boost::date_time to format the date and time (with fractional seconds) in RFC3339 format http://tools.ietf.org/html/rfc3339. I'd like my date to look like "1996-12-19T16:39:57.76-08:00". date +'%FT%T.%N%:z' gives me the format that I want 2010-12-17T17:09:41.079937078+01:00 The boost/C++ code at the end of this message gives me 2010-12-17T16:10:03.141889Z this is the correct time but I want the time in my time zone with an indication of the time zone (+0100) not in UTC with a "Z". Can anyone give me a hint? Another question, is there anyway to control the number of decimals after the point for the seconds? thanks Stuart #include <boost/date_time.hpp> std::cout.imbue(std::locale(std::cout.getloc(), new boost::local_time::local_time_facet("%Y-%m-%dT%H:%M:%S%F%Q"))); std::cout << boost::local_time::local_microsec_clock::local_time(boost::local_time::time_zone_ptr()) << std::endl;

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Simple boost::python::dict question (I hope)
by Tim Aerts 17 Dec '10

17 Dec '10

Hello, I have a pretty urgent matter. Is it possible to add an element to a Python's dict using boost::python? I tried: extrafields["validated"] = "False"; With 'extrafields' in this case being a boost::python::dict But that crashes. I hope this will be an easy one... :) thx Tim

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[Regex] Can't create dylib that links regex statically
by Marcos Pearson 17 Dec '10

17 Dec '10

Hi there, I'm hoping someone can give me some hints on what I'm doing wrong. I'm trying to create a library that uses regex and has no external dependencies. My understanding is that I need to compile boost to be static and link static at runtime. My project is multi-platform, but I'm currently working on OSX 10.6.5. To build boost, I'm using the following command: sudo ./bjam link=static threading=multi runtime-link=static architecture=combined address-model=32_64 macosx-version=10.5 macosx-version-min=10.5 install In Xcode, I've included the produced library, libboost_regex.a, in my Xcode project. I compile my dylib without errors or warning. However, I'm unable to load it. Checking the dependencies, my library seems to want the libboost_regex.dylib. Why? $ otool -L libglobalkvp.dylib libglobalkvp.dylib: /usr/local/lib/libglobalkvp.dylib (compatibility version 1.0.0, current version 1.0.0) /Users/marcospearson/Library/Frameworks/iqvectorsdk.framework/Versions/A/iqvectorsdk (compatibility version 1.0.0, current version 1.0.0) libboost_regex.dylib (compatibility version 0.0.0, current version 0.0.0) /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0) /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0) /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4) I've built, and re-build the boost libraries more times that I can remember and have read post after post, but haven't been able to figure out a solution. Any help would be appreciated. Thanks, Marcos

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serialization/fusion: non intrusive serialize() function templated on type being serialized
by Hicham Mouline 17 Dec '10

17 Dec '10

Hello, I have a base class and a large number of derived classes that are all adapted as fusion sequences. The intention is to serialize through the base pointer. struct Base; struct D_1 : public Base;struct D_2 : public Base;... All the D_i are adapted as fusion sequences. Besides, there is an mpl vector of all the D_i called DVECTOR. In a normal setting, I would have written this: template <typename Archive>void serialize(Archive& ar, Base& b, unsigned int ){ ar & b.member1;} template <typename Archive>void serialize(Archive& ar, D1& d, unsigned int ){ ar & boost::serialization::base_object<Base>(d); ar & d.memberd1;}BOOST_CLASS_EXPORT_KEY(D1) and the same for all D_i. Then I would need BOOST_CLASS_EXPORT_IMPLEMENT for all the D_i as well in the relevant translation units. The base_object part of serialize() is the same for all D_i The D_i specific part of serialize(), I have the ability to generate with fusion meta functions. This leads to a template function with 2 template arguments: template <typename Archive, template Derived>void serialize(Archive& ar, Derived& d, unsigned int ){ ar & boost::serialization::base_object<Base>(d); // fusion code to work on the Derived fusion sequence to generate a " ar & ... " line for each member of Derived} Robert, My question is about the BOOST_CLASS_EXPORT_KEY() and BOOST_CLASS_EXPORT_IMPLEMENT() macros. Am I able to generate all of them from DVECTOR? regards,

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[Interprocess] Strange behaviour on erase in a b::i::vector of b::i::weak_ptr
by Gaetan Gaumer 17 Dec '10

17 Dec '10

Hello Ion and others, I currently work with b::i::vectors storing b::i::managed_weak_ptr on objects created in a fixed_managed_shared_memory. I add shared_ptr whith push_back, but when I want to remove a weak_ptr using erase, the last item is erase instead of the one I want to remove. In the sample code below I add 3 objects and try to remove the middle one in both a vector of shared_ptr and a vector of weak_ptr : interprocessWeakVectorTest.cc http://pastebin.com/yDCngGw4 The result is the expected one for vector of shared_ptr, but not for a vector of weak_ptr : foo_shared_vector: 1 3 foo_weak_vector: 1 2 A tried the same with std::vectors of boost::shared_ptr and boost::weak_ptr (sample code below) : weakVectorTest.cc http://pastebin.com/fMEi0iaA The result is the expected one for both : foo_shared_vector: 1 3 foo_weak_vector: 1 3 I don't understand the behaviour of erase on b::i::vector of b::i::weak_ptr. Is this some kind of bug or am I doing something wrong ? For information I'm doing the same kind of thing with b::i::maps of b::i::shared_ptr and b::i::weak_ptr and the behaviour is correct. I compile this with : g++44 (GCC) 4.4.0 20090514 (Red Hat 4.4.0-6), and the 1.44 release of boost (but nothing in the 1.45 release note seems related to this), using options : -std=c++0x -lrt I don't know why but when I remove -std=c++0x this do not compile anymore even if I don't think I use any c++0x feature (am I ?). Can you check this or explain me my error ? Thank you. Gaëtan

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Re: [Boost-users] mpi/serialization: broadcast function and the value argument
by Hicham Mouline 17 Dec '10

17 Dec '10

>-----Original Message----- >From: "Matthias Troyer" [troyer(a)phys.ethz.ch] >Date: 16/12/2010 03:20 PM >To: "Hicham Mouline" >Subject: Re: [Boost-users] mpi/serialization: broadcast function and the value argument >On Dec 16, 2010, at 10:54 PM, Hicham Mouline wrote: >> 1.44 >> As I wrote, I am able to debug deep into boost mpi and archive. >> Please let me know if I should send any more stacks or other data, >> >Please try with 1.45. Pointer serialization in Boost.MPI has been broken in 1.44 due to changes in Boost.Serialization. >Matthias This is fantastic. It does indeed work. I don't need the clobbered variant solution anymore. regards,

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multivariate random variables
by Stefano Gallo 17 Dec '10

17 Dec '10

Hi Folks, I am new here. I would like to ask whether exist or not something which could help me. My problem is the following. I have a vector of mean values (size N) and a covariance matrix (size NxN). I would like to generate a vector of normal random variables. Thanks for your help. Stefano Gallo

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(boost serialization) wstring portability issue
by Arash Abghari 16 Dec '10

16 Dec '10

Hi, I wonder if there is a way to have wstring portable between Windows and Linux. To be more elaborative consider the following code: wstring s(L"abcd"); std::ofstream ofs("./my_archive",std::iostream::binary); boost::archive::text_oarchive oa(ofs); oa << s; the file my_archive under Linux looks like this: $ xxd my_archive 0000000: 3232 2073 6572 6961 6c69 7a61 7469 6f6e 22 serialization 0000010: 3a3a 6172 6368 6976 6520 3520 3420 6100 ::archive 5 4 a. 0000020: 0000 6200 0000 6300 0000 6400 0000 ..b...c...d... while under Windows it looks like: $ xxd my_archive 0000000: 3232 2073 6572 6961 6c69 7a61 7469 6f6e 22 serialization 0000010: 3a3a 6172 6368 6976 6520 3520 3420 6100 ::archive 5 4 a. 0000020: 6200 6300 6400 b.c.d. as expected it reserved 4 bytes for each character under Linux while 2 bytes under Windows. Thus the archive file created under Linux is not loadable under Windows and vice versa. So my question is if there is a workaround or solution to this problem? By the way I am using boost 1.40 , gcc 4.3.4 and VC 9.0. Thanks, Arash

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