November 2009 - Boost-users - lists.preview.boost.org

Mac OSX - gcc crash
by Igor R 01 Dec '09

01 Dec '09

Hello, My question is not focused, but maybe someone had similar experience and could share his conslucions. I'm porting to iPhone (SDK 3.1.2, XCode3.2.1) rather big static library that uses boost very extensively. It compiles and works well under the simulator both in debug and in release modes. But when I try to compile it for the device, gcc4.2 crashes ("exists with code 1"). I found-out that if I do not generate debug symbols, the compilation succeeds. However, then I can't debug the application on iPhone - it doesn't stop on breakpoints and I can't step through the code (if the application would work on the device like it works on simulator, debugging wouldn't be an issue, but it doens't work for some reason). Again, I even don't know *where* the compiler crashes and whether it's related to boost headers or not, but any idea/experience would be greatly appreciated. Thanks.

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serialization library leaks memory in its global object
by gast128 01 Dec '09

01 Dec '09

Dear all, we were transferring to Boost 1.41 but came across some serious issues in Boost.Serialization. The first is already adressed in a previous post, but now the M$ crt reports a memory leak when using Boost.Serialization in combination of pointers. I think it is located in 'basic_iarchive_impl::load_pointer' where an object is allocated and added to a global object ('object_id_vector') but never released. I know that we might end up here in an argument about the defintion of a memory leak, but the fact remains that the crt just reports it on program closure and until now we never had any reports of that type. If we have to think about every report dumped by the crt, it's just unacceptable. It's like a broken window syndrome; in the end u can not distinguish between false and correct reports. Code: #include <sstream> #include <boost\smart_ptr\make_shared.hpp> #include <boost\archive\xml_oarchive.hpp> #include <boost\archive\xml_iarchive.hpp> struct Foo { template <class Archive> void serialize(Archive& /*ar*/, const unsigned int /*version*/) { } }; int main() { #ifdef _DEBUG _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_LEAK_CHECK_DF); #endif std::stringstream sstr; boost::shared_ptr<Foo> ptrFoo = boost::make_shared<Foo>(); { boost::archive::xml_oarchive oa(sstr); oa << boost::serialization::make_nvp("v", ptrFoo); } boost::archive::xml_iarchive ia(sstr); ia >> boost::serialization::make_nvp("v", ptrFoo); return 0; }

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Adding additional property in Boost graph object.
by Amanullah Yasin 30 Nov '09

30 Nov '09

Hi, Dear all I want to add one additional edge property in Boost graph object of type "bool". Please guide me how i can do it. I tried but not successful. ////////////////////// Here is the main definition of Boost graph object "slGraph" ///////////////////////////////////////////////////////////////////////// namespace boost { struct computable_object_t { typedef vertex_property_tag kind; }; } typedef boost::property<boost::vertex_index_t, unsigned int, boost::property<boost::computable_object_t, plComputableObject*> > slVertexProperty; typedef boost::property<boost::edge_weight_t, slScoreValueType> slEdgeProperty; typedef boost::adjacency_list<boost::vecS, boost::listS, boost::bidirectionalS, \ slVertexProperty, slEdgeProperty> slGraph; typedef slGraph::vertex_descriptor slNode; typedef slGraph::edge_descriptor slEdge; typedef slGraph::vertex_iterator slNodeIterator; typedef slGraph::edge_iterator slEdgeIterator; typedef slGraph::out_edge_iterator slOutEdgeIterator; typedef slGraph::in_edge_iterator slInEdgeIterator; typedef slGraph::adjacency_iterator slOutNodeIterator; typedef slGraph::inv_adjacency_iterator slInNodeIterator; ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Thanks in advance. Amanullah YASIN PhD student Equipe COD (Connaissances et Décision) LINA (Laboratoire d'Informatique de Nantes Atlantique) Ecole Polytechnique de l'Université de Nantes La Chantrerie - rue Christian Pauc - BP 50609 44306 Nantes Cedex 3 FRANCE Mob# 06 99 07 49 71 Fix # 02 72 00 26 45 amanyasin@ gmail.com, hotmail.com, yahoo.com

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Re: [Boost-users] [boost bimap]- question on use of optionalsorting predicate for set_of declarations
by Curtis Himel 30 Nov '09

30 Nov '09

"The thing is that you are using the left view of the bimap, and not the one you have customized. Try using the right view map, it should work as you expect." I didn't understand why switching views would work, and it didn't do what I wanted. (I tried it anyway.) If I use the right view, then I'm looking up the multiset ints with a unique short, right? I want to go the other way- I want to look up a sorted range of unique shorts from the right side with a non-unique int from the left side. I might have misunderstood you, but I don't see how using the right view works there. Thanks, Curtis _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ This e-mail and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the originator of the message. This footer also confirms that this e-mail message has been scanned for the presence of computer viruses. Any views expressed in this message are those of the individual sender, except where the sender specifies and with authority, states them to be the views of Indra Systems, Inc.

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std_hash_set_fwd.hpp:29: error: redeclared with 3 template parameter(s)
by Mathieu Malaterre 30 Nov '09

30 Nov '09

Has anyone seen this type of error before: /usr/include/boost/spirit/home/phoenix/stl/algorithm/detail/././std_hash_set_fwd.hpp:29: error: redeclared with 3 template parameter(s) /usr/include/c++/4.3/backward/hash_set:84: note: previous declaration ‘template<class _Value, class _HashFcn, class _EqualKey, class _Alloc> class __gnu_cxx::hash_set’ used 4 template parameter(s) /usr/include/boost/spirit/home/phoenix/stl/algorithm/detail/././std_hash_set_fwd.hpp:36: error: redeclared with 3 template parameter(s) /usr/include/c++/4.3/backward/hash_set:285: note: previous declaration ‘template<class _Value, class _HashFcn, class _EqualKey, class _Alloc> class __gnu_cxx::hash_multiset’ used 4 template parameter(s) make[2]: *** [Simulation/CMakeFiles/GraphicDisplay.dir/GraphicDisplay/Visualization.o] Error 1 System: debian stable $ gcc -dumpversion 4.3.4 $ apt-cache policy libboost-all-dev libboost-all-dev: Installed: 1.40.0.1 Candidate: 1.40.0.1 Version table: *** 1.40.0.1 0 200 http://ftp.fr.debian.org testing/main Packages 100 http://ftp.fr.debian.org unstable/main Packages 100 /var/lib/dpkg/status Thanks, -- Mathieu

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asio to read device files
by Lloyd 30 Nov '09

30 Nov '09

Hi, In Windows we can open and read storage meidias by using the call CreateFile() and ReadFile() respecively. The device name is passed as a string to the CreateFile() call, as an example "PhysicalDrive1". Create file returns a handle of type "HANDLE". can I use this handle in asio in order to read a device file? Thanks, Lloyd ______________________________________ Scanned and protected by Email scanner

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MultiArray and point-wise product
by Claudio Martella 30 Nov '09

30 Nov '09

Hello list, I'm trying to calculate point-wise product from a MultiArray (basically the adjacency list from the boost graph). Can anybody suggest how the point-wise product can be calculated in boost in the most efficient way (of course i can implement the function myself with a nested for())? For those not familiar with point-wise product, it's defined as: A[i,j] = B[i,j] * C[i,j] TIA /CM -- Claudio Martella Digital Technologies Unit Research & Development - Analyst TIS innovation park Via Siemens 19 | Siemensstr. 19 39100 Bolzano | 39100 Bozen Tel. +39 0471 068 123 Fax +39 0471 068 129 claudio.martella(a)tis.bz.it http://www.tis.bz.it Short information regarding use of personal data. According to Section 13 of Italian Legislative Decree no. 196 of 30 June 2003, we inform you that we process your personal data in order to fulfil contractual and fiscal obligations and also to send you information regarding our services and events. Your personal data are processed with and without electronic means and by respecting data subjects' rights, fundamental freedoms and dignity, particularly with regard to confidentiality, personal identity and the right to personal data protection. At any time and without formalities you can write an e-mail to privacy(a)tis.bz.it in order to object the processing of your personal data for the purpose of sending advertising materials and also to exercise the right to access personal data and other rights referred to in Section 7 of Decree 196/2003. The data controller is TIS Techno Innovation Alto Adige, Siemens Street n. 19, Bolzano. You can find the complete information on the web site www.tis.bz.it.

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Re: [Boost-users] Two questions on boost::function
by CR Koudella 30 Nov '09

30 Nov '09

Thanks for your reply on this, too. Yes, I am beginning to look into phoenix. Here too, it would be of great help if you could indicate to me how you would handle my example with phoenix. Thanks, ChrisK

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pow math function and bind in boost::lambda
by Conoscenza Silente 30 Nov '09

30 Nov '09

Hi All I tried to use pow function from <cmath> in a lamda function using boost::lamdba. Below the piece of code I used. Do you know what is wrong with it? Thank you very much. CS double l_tmp; double p_tmp; constant_type<double>::type h( constant(2.3) ); constant_type<double>::type g( constant(1.2) ); var_type<double>::type tmp( var(l_tmp) ); var_type<double>::type pow_tmp( var(p_tmp) ); std::for_each( x.begin(), x.end(),( tmp = 10, pow_tmp = boost::lambda::bind( pow, tmp - h - g , 3.15 ) ));

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test errors due to possible boost config issue
by McLemon, Sean 30 Nov '09

30 Nov '09

I've just got back to configuring\building boost for our compiler again. In one of the tests I'm running into a compiler error, perhaps I'm hoping someone can help me figure out what's going wrong. The test is libs/bind/test/bind_cdecl_mf_test.cpp and i'm getting a parse error fairly early on (line 30) and an undefined identifier "F" (line 32). $ c:/analog/tools6.0/ccblkfn.exe c:/dsp_testsuite/TESTS/boost/boost_1_40_0/libs/bind/test/bind_cdecl_mf_test.cpp -double-size-64 -Ic:/dsp_testsuite/TESTS/boost/boost_1_40_0/ -full-io -full-cpplib -c++ -eh -rtti c:/dsp_testsuite/TESTS/boost/bf_cplb.c -proc ADSP-BF537 -O -time -D__DSPTEST_API__ -D__DSPTEST_USING_60__ -flags-link -MDUSE_SDRAM_HEAP -flags-link -MDUSE_CACHE -o d_dsptest_bind_cdecl_mf_testcpp_0e80028.dxe -DBOOST_NO_FUNCTION_TEMPLATE_ORDERING ccblkfn.exe: Compiling c:\dsp_testsuite\TESTS\boost\boost_1_40_0\libs\bind\test\bind_cdecl_mf_test.cpp "c:\dsp_testsuite\TESTS\boost\boost_1_40_0\boost/bind/mem_fn_template.hpp", line 30: cc0018: error: expected a ")" BOOST_MEM_FN_TYPEDEF(R (BOOST_MEM_FN_CC T::*F) ()) ^ "c:\dsp_testsuite\TESTS\boost\boost_1_40_0\boost/bind/mem_fn_template.hpp", line 32: cc0020: error: identifier "F" is undefined F f_; ^ <snip, lots more errors here. suspect due to F being undefined> Perhaps I'm missing a define in my configuration header, or this is a genuine error in our compiler. - Sean

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