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Compilation Problem !! (Platform does not have wide character support) !!
by Patel Priyank-PPATEL1 15 Mar '06

15 Mar '06

Hi all, I am trying to compile Boost on following Solaris machine: => SunOS isdbuild9 5.8 Generic_108528-18 sun4u sparc SUNW,Sun-Fire-480R I have used following command to build boost : => ../boost-jam-3.1.12/bin.solaris/bjam -sTOOLS=gcc --libdir=./lib stage I have got following error, during compilation. ======================================================================== =================== gcc-C++-action bin/boost/libs/serialization/build/libboost_wserialization.a/gcc/debug/u tf8_codecvt_facet.o /vob/wibb_test/tools/cots/boost_1_33_1/libs/serialization/src/utf8_codec vt_facet.cpp:8:2: #error "wide char i/o not supported on this platform" set -e "g++" -c -Wall -ftemplate-depth-255 -DBOOST_LIB_DIAGNOSTIC=1 -g -O0 -fno-inline -Wno-non-virtual-dtor -Wno-ctor-dtor-privacy -I"bin/boost/libs/serialization/build" -I "/vob/wibb_test/tools/cots/boost_1_33_1" -o "bin/boost/libs/serialization/build/libboost_wserialization.a/gcc/debug/ utf8_codecvt_facet.o" "/vob/wibb_test/tools/cots/boost_1_33_1/libs/serialization/build/../src/ utf8_codecvt_facet.cpp" "/apps/public/bin/objcopy" --set-section-flags .debug_str=contents "bin/boost/libs/serialization/build/libboost_wserialization.a/gcc/debug/ utf8_codecvt_facet.o" ...failed gcc-C++-action bin/boost/libs/serialization/build/libboost_wserialization.a/gcc/debug/u tf8_codecvt_facet.o... gcc-C++-action bin/boost/libs/serialization/build/libboost_wserialization.a/gcc/debug/b asic_text_wiprimitive.o /vob/wibb_test/tools/cots/boost_1_33_1/libs/serialization/src/basic_text _wiprimitive.cpp:14:2: #error "wide char i/o not supported on this platform" ======================================================================== =================== I tried to compile with following command too, but somehow it does not skip compilation of boost_serialization library: => ../boost-jam-3.1.12/bin.solaris/bjam -sTOOLS=gcc --libdir=./lib --without-boost_serialization stage Please let me know if you have similar issue before and aware of any solution. Thanks Priyank

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Need help in understanding boost lambda compile error:
by Meryl Silverburgh 15 Mar '06

15 Mar '06

Need help in understanding boost lambda compile error: I have this line of code: where grlpVector is vector<GroupResultListProcessor*> for_each(grlpVector.begin(), grlpVector.end(), boost::lambda::bind(&GroupResultListProcessorExecuter::do_process, this, *_1)); But I get this compile error, can you help me understand what's wrong? /usr/include/boost/tuple/detail/tuple_basic.hpp: In instantiation of 'boost::tuples::cons<GroupResultListProcessor, boost::tuples::null_type>': /usr/include/boost/tuple/detail/tuple_basic.hpp:329: instantiated from 'boost::tuples::cons<GroupResultListProcessorExecuter* const, boost::tuples::cons<GroupResultListProcessor, boost::tuples::null_type> >' /usr/include/boost/tuple/detail/tuple_basic.hpp:329: instantiated from 'boost::tuples::cons<void (GroupResultListProcessorExecuter::* const)(GroupResultListProcessor&), boost::tuples::cons<GroupResultListProcessorExecuter* const, boost::tuples::cons<GroupResultListProcessor, boost::tuples::null_type> > >' /usr/include/boost/lambda/detail/lambda_functor_base.hpp:151: instantiated from 'const bool boost::lambda::detail::has_null_type<boost::tuples::cons<void (GroupResultListProcessorExecuter::* const)(GroupResultListProcessor&), boost::tuples::cons<GroupResultListProcessorExecuter* const, boost::tuples::cons<GroupResultListProcessor, boost::tuples::null_type> > > >::value' /usr/include/boost/lambda/detail/lambda_functor_base.hpp:229: instantiated from 'boost::lambda::detail::deduce_non_ref_argument_types<boost::tuples::tuple<void (GroupResultListProcessorExecuter::* const)(GroupResultListProcessor&), GroupResultListProcessorExecuter* const, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::other_action<boost::lambda::contentsof_action>, boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, boost::tuples::tuple<GroupResultListProcessor*&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >' /usr/include/boost/lambda/detail/lambda_functor_base.hpp:412: instantiated from 'boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> >, boost::tuples::tuple<void (GroupResultListProcessorExecuter::* const)(GroupResultListProcessor&), GroupResultListProcessorExecuter* const, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::other_action<boost::lambda::contentsof_action>, boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >::sig<boost::tuples::tuple<GroupResultListProcessor*&, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >' /usr/lib/gcc/i386-redhat-linux/4.0.2/../../../../include/c++/4.0.2/bits/stl_algo.h:158: instantiated from '_Function std::for_each(_InputIterator, _InputIterator, _Function) [with _InputIterator = __gnu_cxx::__normal_iterator<GroupResultListProcessor**, std::vector<GroupResultListProcessor*, std::allocator<GroupResultListProcessor*> > >, _Function = boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<3, boost::lambda::function_action<3, boost::lambda::detail::unspecified> >, boost::tuples::tuple<void (GroupResultListProcessorExecuter::* const)(GroupResultListProcessor&), GroupResultListProcessorExecuter* const, const boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::other_action<boost::lambda::contentsof_action>, boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::placeholder<1> >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> > >]' ../GroupResultListProcessorExecutor.cpp:30: instantiated from here /usr/include/boost/tuple/detail/tuple_basic.hpp:419: error: cannot declare field 'boost::tuples::cons<GroupResultListProcessor, boost::tuples::null_type>::head' to be of abstract type 'GroupResultListProcessor' ../GroupResultListProcessor.h:15: note: because the following virtual functions are pure within 'GroupResultListProcessor': ../GroupResultListProcessor.h:17: note: virtual void GroupResultListProcessor::process(GroupResultList&) make: *** [GroupResultListProcessorExecutor.o] Error 1

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bjam and VC8
by Andreas Fabri 15 Mar '06

15 Mar '06

Hello, I first executed C:\Program Files\Microsoft Visual Studio 8\Common7\Tools\vsvars32.bat I then called bjam "-sTools=vc-8_0" install but it installs me the libs c:/boost/lib/boost_date_time-vc71-mt-1_33_1.lib that is for the vc71 toolset. Can anybody tell me what I did wrong. thanks, andreas

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[multi_index] modify_range?
by Jeff Flinn 14 Mar '06

14 Mar '06

It would be nice to have a modify_range/modify_key_range that would apply a function object to each deref'd iterator in the range. Since the multi_index iterator derefences to a const value_type&, one can not use std::for_each in particular to apply modifications. Or am I missing something. Thanks, Jeff

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stopping dijkstra_shortest_path after target achieved
by Celso Pitta 14 Mar '06

14 Mar '06

Dear ALL, Its probably a easy/dummy question, but as i`m new with template programming and i`ve seen no discussion about this in the mailing list... Is there an easy/already implemented way to stop the computation of the dijkstra_shortest_path algorithm when some target vertex is marked as black?? The problem is: i have a _huge_ graph and need to calculate the shortest distance between two points, but in 90% of all use cases the these points will be very close of each other, so doesn't make sense for me to keep the calculation until all shortest paths are found.. Best regards, Celso.

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Re: [Boost-users] Using bind to call a member function
by James Hughes 14 Mar '06

14 Mar '06

Also thanks, I was wondering how to do exactly the same thing the other day. James > -----Original Message----- > From: Rob Caldecott [mailto:robert.caldecott@gmail.com] > Sent: 14 March 2006 09:52 > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Using bind to call a member function > > > Thankyou Stuart - it works like a charm. > > > > You certainly can - add 'this' as the first bound > parameter, like so: > > > > for_each(v.begin(), v.end(), bind(&CTest::SomeFunc, this, _1)); > > > > HTH > > Stuart Dootson > > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users >

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Using bind to call a member function
by Rob Caldecott 14 Mar '06

14 Mar '06

Greetings, Is it possible to use boost::bind in a for_each loop to call a member of the class that is making the call? For example: class CTest { public: void SomeFunc(const std::wstring& str) const { // Do something with str } void DoSomething() const { std::vector<std::wstring> v; v.push_back(L"test"); ... for_each(v.begin(), v.end(), bind(&CTest::SomeFunc, _1)); } }; Obviously the above will not compile - and I'm pretty sure that somewhere in the bind, "this" will need to be passed, but I am struggling to make this work. I know I could use a static member function or use a function object and pass it "this", but I wondered if there is a way to cut out the middle-man and call a member function directly in this way?

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[serialization] Problem writing and reading in same block, with work-around
by Robert S. Grimes 14 Mar '06

14 Mar '06

Hi all, It seems there is a problem with using both an output and an input archive in the same code block. Here is a simple sample that illustrates the problem. By defining the symbol BREAK_IT, you can see the problem; not defining it, the example works. What is particularly odd is that it is throwing an std::bad_alloc from within text_iarchive_impl<Archive>::load(std::string &s) in text_iarchive_impl.ipp because the requested size is obviously wrong - for example, 3435973837!!! I can't follow well enough what is happening, but I have figured out a work-around from noticing the differences between my example and demo.cpp; in the latter, the writing and reading of an archive are performed in two separate functions, or more precisely, two different blocks. Is this normal? Have I missed the documentation about this? Still, seems rather fussy, though to be honest, I'm not likely to suffer from the workaround in "production" code, but it's a bit unnerving nonetheless... Thanks! -Bob Example follows: #include <fstream> #include <iostream> #include <string> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> class Simple { private: int anIntMember; bool aBoolMember; template<class Archive> void serialize(Archive & ar, const unsigned int file_version) { ar & BOOST_SERIALIZATION_NVP(anIntMember) & BOOST_SERIALIZATION_NVP(aBoolMember); } // Grant access to serialization library friend class boost::serialization::access; public: Simple(): anIntMember(27), aBoolMember(false) {} int GetAnIntMember() const { return anIntMember; } void SetAnIntMember(int v) { anIntMember = v; } bool GetABoolMember() const { return aBoolMember; } void SetABoolMember(bool v) { aBoolMember = v; } }; #define BREAK_IT void TestBoostText(const Simple& parms) { #ifndef BREAK_IT { #endif // Write out to boost archive std::ofstream ofs("./boost.txt"); boost::archive::text_oarchive oa(ofs); oa << parms; /// Could use a better XML element name #ifndef BREAK_IT } #endif // Read it back and check Simple rparms; std::ifstream ifs("./boost.txt"); // THIS IS THE BROKEN LINE boost::archive::text_iarchive ia(ifs); ia >> rparms; std::cout << "Checking boost read..."; if (rparms.GetAnIntMember() == 99) { std::cout << "Worked!!!" << std::endl; } else { std::cout << "Failed - appears not to have been updated" << std::endl; } } int main(int argc, char* argv[]) { Simple parms; // Modify parms for testing purposes parms.SetAnIntMember(99); // Test both binary archives TestBoostText(parms); return 0; }

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Known issues loading lots of objects with xml_iarchive?
by Christopher Gillett 14 Mar '06

14 Mar '06

I am serializing a LOT of objects, one per file. I can create XML for many thousands of objects with no issue. However, when trying to load a few hundred objects (using a separate program, btw) I am hitting a boost::archive::archive_exception with a stream error while loading around the 161st file, which I believe based on stack traces is coming from within boost::archive::basic_xml_grammar<char>::parse_end_tag (). The approach I'm taking is fairly textbook, so I'm curious if there are known issues with loading a lot of files, etc. Any advice appreciate. Thanks, Chris Gillett

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Re: [Boost-users] Boost Statechart: general questionss about whatthelibrary can do
by RIVASSEAU Jean Noel 13 Mar '06

13 Mar '06

Hi Andreas Hmmm, at first that sounds more like a BGL problem than one for the statechart library. What you describe above is easy to do with an appropriately designed state machine but I'm not sure it would be the right abstraction. For what real-world problem do you plan to use Statechart? Actually, after I sent the mail I thought some more and yes, I realised that this can be more of a graph problem (shortest path or such...) so it would be easy to with the BGL. But I'd like to do it with Boost Statechart since my real-world problem is at heart a state problem (statechart). What I am trying to do is: * I have an embedded software to *test*. I am trying to develop a framework for somewhat automatically testing the software. If I look at the specification of the software, I have lots of possible states (specs mention a lot of UML like diagrams). I need to test if the software correctly respects the specification, that is, if it correctly changes from one state to another according to a given event. Since the diagrams are complex, and thus the state space is huge (sometimes more than 100 states), I'd like for my framework to be able to automatically go to a given state, to be able to test the software in that particular state. Eg, if you just start by powering up the device, I'd like to compute the paths (and thus, events, that have to be translated to commands sent to the embedded device) to go to a particular state. Do you think Boost Statechart would be a good abstraction? If yes, how can I implement some of the Boost algorithms for graphs (such as shortest path) to achieve what I need? Is it even possible from a technical point of view to convert a fsm to a graph and run BGL algorithms on it ? I am already quite familiar with the BGL as I used it extensively one year ago. Thanks. > When a transition is executed (automatically, or explicitely), can I > call a function? That is, when an event is processed, can I implement > some code that will be executed each time an event is processed ? Yes, that is probably the feature every FSM library supports. Ok. Regards Jean-Noël

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