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

[statechart] status page
by Bill Clark 04 May '09

04 May '09

The status page for boost::statechart, http://www.boost.org/development/tests/release-1_38_0/user/statechart_relea…, appears not to be working. It gives an error message, "Error extracting file: The specified zipfiles were not found." Is the status information available elsewhere?

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Using a shared_ptr in a boost::function definition?
by Ashley McConnell 04 May '09

04 May '09

Hi Folks, I can't quite figure out how to do this correctly (*note* the types ending in Ptr are typedef'd boost::shared_ptr types) I have a function like so: - void setCompleteFunction(boost::function< void (int errorCode, const string &data, HeaderMapPtr headers) > f); I try to bind to it: - wc->setCompleteFunction(boost::bind(&NetworkEventHandler::receiveSkinDownloadResult, this, _1, _2, _3, wc,myFile, filename.str(), carId, crc, networkPlayerId)); I get quite a few errors indicating that it can't match to this pattern, this is the most sensible message: - error C2784: 'boost::_bi::bind_t<R,F,_bi::list_av_9<A1,A2,A3,A4,A5,A6,A7,A8,A9>::type> boost::bind(boost::type<T>,F,A1,A2,A3,A4,A5,A6,A7,A8,A9)' : could not deduce template argument for 'boost::type<T>' from 'void (__thiscall Sirocco::NetworkEventHandler::* )(int,const std::string &,Sirocco::HeaderMapPtr,Sirocco::IWebConnectionPtr,Sirocco::FilePtr,const std::string &,const std::string &,const std::string &,const std::string &)' If i don't put the shared_ptr in there (and remove the _3) it works as expected, any idea what I could be doing wrong? Thanks for your help All the best, Ash -- View this message in context: http://www.nabble.com/Using-a-shared_ptr-in-a-boost%3A%3Afunction-definitio… Sent from the Boost - Users mailing list archive at Nabble.com.

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Re ducing adjacency_list's memory usage
by behzad 04 May '09

04 May '09

Hi, I wanted to ask if anybody knows how I can reduce memory usage of adj_list graph, even by eliminating some of it's features. Any help is greatly appreciated. -- View this message in context: http://www.nabble.com/Reducing-adjacency_list%27s-memory-usage-tp23363864p2… Sent from the Boost - Users mailing list archive at Nabble.com.

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[Signals2] Error on building project RELEASE
by Daniele Barzotti 04 May '09

04 May '09

Hi, I'm writing a library that use the following: #include <boost/asio.hpp> #include <boost/asio/serial_port.hpp> #include <boost/thread.hpp> #include <boost/signals2/signal.hpp> #include <boost/scoped_ptr.hpp> #include <boost/enable_shared_from_this.hpp> I retrieved Signals2 from svn on 15/04/09. When I build it like STATIC DEBUG lib all works fine, but when I switch to STATIC RELEASE I got two errors... The preprocessor statements are: FOR RELEASE: WIN32;_LIB;_WINDOWS;EUROATLIB_EXPORTS;_WIN32_WINNT=0x0501 FOR DEBUG : WIN32;_DEBUG;_LIB;_WINDOWS;EUROATLIB_EXPORTS;_WIN32_WINNT=0x0501 What could be the problem? Tnx, Daniele. -------------------------------------------------------- ATDispatcher.cpp C:\Programmi\Microsoft Visual Studio 9.0\VC\include\xutility(419) : error C2664: 'boost::signals2::detail::stack_allocator<T,n_stack_elements>::stack_allocator(boost::signals2::detail::stack_storage<T,10> *)' : cannot convert parameter 1 from 'boost::signals2::detail::stack_allocator<T,n_stack_elements>' to 'boost::signals2::detail::stack_storage<T,n_stack_elements> *' with [ T=std::_Aux_cont, n_stack_elements=10 ] and [ T=boost::shared_ptr<void>, n_stack_elements=10 ] and [ T=std::_Aux_cont, n_stack_elements=10 ] No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called C:\Programmi\Microsoft Visual Studio 9.0\VC\include\xutility(417) : while compiling class template member function 'std::_Container_base_aux_alloc_real<_Alloc>::_Container_base_aux_alloc_real(_Alloc)' with [ _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] C:\Programmi\Microsoft Visual Studio 9.0\VC\include\vector(421) : see reference to class template instantiation 'std::_Container_base_aux_alloc_real<_Alloc>' being compiled with [ _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] C:\Programmi\Microsoft Visual Studio 9.0\VC\include\vector(439) : see reference to class template instantiation 'std::_Vector_val<_Ty,_Alloc>' being compiled with [ _Ty=boost::shared_ptr<void>, _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] G:\lib\boost_signals2\boost/signals2/detail/stack_vector.hpp(28) : see reference to class template instantiation 'std::vector<_Ty,_Ax>' being compiled with [ _Ty=boost::shared_ptr<void>, _Ax=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] G:\lib\boost_signals2\boost/signals2/detail/slot_call_iterator.hpp(39) : see reference to class template instantiation 'boost::signals2::detail::stack_vector<T,NumStackElements>' being compiled with [ T=boost::shared_ptr<void>, NumStackElements=10 ] G:\lib\boost_signals2\boost/signals2/detail/slot_call_iterator.hpp(41) : see reference to class template instantiation 'boost::signals2::detail::slot_call_iterator_cache<ResultType,Function>' being compiled Serial.cpp C:\Programmi\Microsoft Visual Studio 9.0\VC\include\xutility(419) : error C2664: 'boost::signals2::detail::stack_allocator<T,n_stack_elements>::stack_allocator(boost::signals2::detail::stack_storage<T,10> *)' : cannot convert parameter 1 from 'boost::signals2::detail::stack_allocator<T,n_stack_elements>' to 'boost::signals2::detail::stack_storage<T,n_stack_elements> *' with [ T=std::_Aux_cont, n_stack_elements=10 ] and [ T=boost::shared_ptr<void>, n_stack_elements=10 ] and [ T=std::_Aux_cont, n_stack_elements=10 ] No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called C:\Programmi\Microsoft Visual Studio 9.0\VC\include\xutility(417) : while compiling class template member function 'std::_Container_base_aux_alloc_real<_Alloc>::_Container_base_aux_alloc_real(_Alloc)' with [ _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] C:\Programmi\Microsoft Visual Studio 9.0\VC\include\vector(421) : see reference to class template instantiation 'std::_Container_base_aux_alloc_real<_Alloc>' being compiled with [ _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] C:\Programmi\Microsoft Visual Studio 9.0\VC\include\vector(439) : see reference to class template instantiation 'std::_Vector_val<_Ty,_Alloc>' being compiled with [ _Ty=boost::shared_ptr<void>, _Alloc=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] G:\lib\boost_signals2\boost/signals2/detail/stack_vector.hpp(28) : see reference to class template instantiation 'std::vector<_Ty,_Ax>' being compiled with [ _Ty=boost::shared_ptr<void>, _Ax=boost::signals2::detail::stack_allocator<boost::shared_ptr<void>,10> ] G:\lib\boost_signals2\boost/signals2/detail/slot_call_iterator.hpp(39) : see reference to class template instantiation 'boost::signals2::detail::stack_vector<T,NumStackElements>' being compiled with [ T=boost::shared_ptr<void>, NumStackElements=10 ] G:\lib\boost_signals2\boost/signals2/detail/slot_call_iterator.hpp(41) : see reference to class template instantiation 'boost::signals2::detail::slot_call_iterator_cache<ResultType,Function>' being compiled LRRPTokenizer.cpp --------------------------------------------------------

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Program options negative arguments
by David Doria 04 May '09

04 May '09

If I setup a multitoken option like this: desc.add_options() ("NumberList", po::value<vector<int> >()->multitoken(), "List of numbers.") and then call the program with: ./Program --NumberList 1 2 -3 4 it treats the number "-3" as a new flag so it produces an "unknown option" error. Is there a way to handle this negative argument? Thanks, David

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Specifying daylight savings start/end in zone spec CSV file.
by Jason Cipriani 04 May '09

04 May '09

The timezone data file used by boost::local_time::tz_database is described here: http://www.boost.org/doc/libs/1_39_0/doc/html/date_time/local_time.html#tz_… My question is: Should the DST start time be specified in local time with or without DST applied? What about the DST end time? For example, America/New_York's start time is 2:00 AM. Is that 2:00 AM EST, or EDT? The end time is similar. The documentation says that the start time and end time is the "number of hours past midnight"; so I'm assuming that the start time is in non-DST, and the end time is in DST, but I just want to make sure. Thanks, Jason

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Bind
by Etienne Philip Pretorius 04 May '09

04 May '09

Hello list, Can boost.bind() be used to delay the call to a member function until you have gathered all the data types to populate the function parameter list? Etienne

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thread interrupt does not work on thread proc from dll
by Dan Aragona 04 May '09

04 May '09

I am creating a thread from a static lib, and passing in a thread proc from a dynamic lib. The problem I am having is that the interrupt does not work - join just hangs on the call to WaitForMultipleObjects from within thread.cpp. I can get interrupt to work if my thread proc is from a static lib, but I cannot get it to work if my thread proc is from a dynamic lib. I notice when I step into: bool interruptible_wait() the call if(get_current_thread_data()&&get_current_thread_data()->interruption_enabled) is always false. When I call bool chkInterruptEnabled = boost::this_thread::interruption_enabled(); from within my thread proc it is true from the static lib but false from the dynamic lib. I am using VS2005 sp1 and 1_36 Any help is greatly appreciated.

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Boost Gentoo amd64
by Mark Chandler 03 May '09

03 May '09

Hi, Im trying to run a 32 bit app that uses boost on gentoo 64bit. The problem is that the server is in a secure mode and can only run packages signed by gentoo. The gentoo boost install only has the option of compiling for 64bit (the native os bit size) and i was wondering who i would need to speak to in order to get a 32bit compiling option added. Mark

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Filesystem: Case insensitive search on case sensitive systems
by Chris Spencer 03 May '09

03 May '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, I am writing a cross-platform program which takes path names from a Windows-originating file. As such, there is no guarantee that the paths match the case of what is actually stored in the file system. Does anyone have any advice on the best way to do a case-insensitive search to get the correct path? Thanks, Chris. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkn+AgoACgkQ6iqRtkAADZhrFQCgxL0prbFme94Y6/D6IqNQccT+ bWYAoPZPopoX4YyhjrkCe/u74YsjZUQM =SavU -----END PGP SIGNATURE-----

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