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boost program options cannot accept hex number
by Peng Yu 30 Mar '06

30 Mar '06

I tried to supply a hex number to an unsigned long integer. But it fails. ("code", po::value<unsigned long>(), "Via pattern code") Error message: in option 'code': invalid option value '0x5A' Could you please let me if it is possible to input a hex form integer in the command line? Thanks, Peng

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Problems compiling Serialisation libs because of Spirit problem
by James Hughes 30 Mar '06

30 Mar '06

Hello all, I reported some time ago an issue with trying to compile the Boost libs using an ARM cross compiler. This has just started to have an impact as I wish to try out the Serialisation libs, and these are one of the areas with a compile issue. The following error is repeated over a considerable number of files and seems to indicate a problem with Spirit. I am using the latest release version of Boost (1.33.1)- no patches (are there any?) and a gcc v3.4.3 cross compiler to ARM architecture. Does anyone have any suggestions? I have had no luck figuring it out, but to be honest haven't spent a lot of time on it yet. Rgds James >>>>> gcc-C++-action bin/boost/libs/serialization/build/libboost_serialization.a/gcc/debug/xml_gr ammar.o In file included from /home/jhughes/boost_1_33_1/libs/serialization/build/../src/basic_xml_grammar .ipp:22, from /home/jhughes/boost_1_33_1/libs/serialization/build/../src/xml_grammar.cpp:6 3: /home/jhughes/boost_1_33_1/boost/spirit/core/primitives/numerics.hpp:120: error: declaration of `template<class ScannerT> struct boost::spirit::sign_parser::result' /home/jhughes/boost_1_33_1/boost/spirit/core/parser.hpp:123: error: conflicts with previous declaration `template<class ScannerT> struct boost::spirit::parser<boost::spirit::sign_parser>::result' set -e "/opt/montavista/mobilinux/devkit/arm/iwmmxt_le/bin/iwmmxt_le-g++" -D_REENTRANT -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 "/home/jhughes/boost_1_33_1" -o "bin/boost/libs/serialization/build/libboost_serialization.a/gcc/debug/xml_g rammar.o" "/home/jhughes/boost_1_33_1/libs/serialization/build/../src/xml_grammar.cpp" "/opt/montavista/mobilinux/devkit/arm/iwmmxt_le/bin/iwmmxt_le-objcopy" --set-section-flags .debug_str=contents,debug "bin/boost/libs/serialization/build/libboost_serialization.a/gcc/debug/xml_g rammar.o" ...failed gcc-C++-action bin/boost/libs/serialization/build/libboost_serialization.a/gcc/debug/xml_gr ammar.o... <<<<<

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Building boost libraries for x64 platform
by Sergei N. Malyutin 30 Mar '06

30 Mar '06

Hi, I need to use boost libraries under amd64 platform. At the build time of the library boost_thread I've got an error message from the linker that it failed to find an external symbol _InterlockedCompareExchange (this call is used in the source once.cpp). I really have not found this export among system libraries functions. Does this mean that currently the boost cannot be used in this environment? I did not see any limitations on the boost use under x64. May be I missed anything? Any help or links to the required information would be appreciated. Sergei Malyutin _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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[serialization] XML archive limitations?
by Delfin Rojas 30 Mar '06

30 Mar '06

Hello, I would like to know if it is possible to use the serialization lib and the XML archive to serialize into XML attributes instead of XML elements. For example I want to be able to generate something like: <song id="5" title="foo"/> I would also like to know if the order of XML elements is strict. Meaning, if I have the XML: <song> <id>5</id> <name>foo</name> </song> Can I ask the library to de-serialize "name" and then "id"? What if the xml contains extra XML elements that I don't care to de-serialize? Will I get an error processing the archive? If these things are not supported right now, what would it take to support it? New xml archive? Thanks a lot, Delfin Rojas

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Re: [Boost-users] Serialization library question
by wayne.x.liu＠jpmchase.com 30 Mar '06

30 Mar '06

Thanks for the help. The new code works. For my application, I would like to use BOOST_CLASS_EXPORT_GUID to simplify the registration process. Changing the demo code to use EXPORT causes it to core dump. Perhaps I'm not using correctly... Again, help would be appreciated. Wayne Liu #0 0x004a2575 in boost::archive::detail::basic_iarchive_impl::load_preamble () from /cbb/public/wayne/build/lib/libboost_serialization-gcc-1_33_1.so.1.33.1 #1 0x004a30b9 in boost::archive::detail::basic_iarchive_impl::load_pointer () from /cbb/public/wayne/build/lib/libboost_serialization-gcc-1_33_1.so.1.33.1 #2 0x004a2934 in boost::archive::detail::basic_iarchive::load_pointer () from /cbb/public/wayne/build/lib/libboost_serialization-gcc-1_33_1.so.1.33.1 #3 0x0804d989 in boost::archive::detail::load_pointer_type<boost::archive::text_iarchive, bus_stop*>::invoke (ar=@0xbfff7fd0, t=@0xbfff800c) at /cbb/public/wayne/build/include/boost-1_33_1/boost/archive/detail/iserializer.hpp:486 #4 0x0804d8f6 in load<boost::archive::text_iarchive, bus_stop*> (ar=@0xbfff7fd0, t=@0xbfff800c) at /cbb/public/wayne/build/include/boost-1_33_1/boost/archive/detail/iserializer.hpp:572 #5 0x0804d80b in boost::archive::basic_text_iarchive<boost::archive::text_iarchive>::load_override<bus_stop*> (this=0xbfff7fd0, t=@0xbfff800c) at /cbb/public/wayne/build/include/boost-1_33_1/boost/archive/basic_text_iarchive.hpp:64 #6 0x0804d718 in boost::archive::text_iarchive_impl<boost::archive::text_iarchive>::load_override<bus_stop*> (this=0xbfff7fd0, t=@0xbfff800c) at /cbb/public/wayne/build/include/boost-1_33_1/boost/archive/text_iarchive.hpp:64 #7 0x0804d65d in operator>><bus_stop*> (this=0xbfff7fd0, t=@0xbfff800c) at /cbb/public/wayne/build/include/boost-1_33_1/boost/archive/detail/interface_iarchive.hpp:76 #8 0x0804c807 in restore (ss=@0xbfff8070) at test/d3.cpp:138 #9 0x0804cf69 in main (argc=1, argv=0xbfff8274) at test/d3.cpp:180 /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 // demo.cpp // // (C) Copyright 2002-4 Robert Ramey - http://www.rrsd.com . // Use, modification and distribution is subject to the Boost Software // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #include <iomanip> #include <iostream> #include <sstream> #include <string> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/serialization/access.hpp> #include <boost/serialization/base_object.hpp> #include <boost/serialization/utility.hpp> #include <boost/serialization/export.hpp> ///////////////////////////////////////////////////////////// // One bus stop // // illustrates serialization of serializable members // class bus_stop { friend class boost::serialization::access; friend std::ostream & operator<<(std::ostream &os, const bus_stop &gp); virtual std::string description() const = 0; int latitude; int longitude; template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & latitude; ar & longitude; } protected: bus_stop(const int & _lat, const int & _long) : latitude(_lat), longitude(_long) {} public: bus_stop(){} virtual ~bus_stop(){} }; BOOST_IS_ABSTRACT(bus_stop) BOOST_CLASS_EXPORT_GUID(bus_stop, "bus_stop") std::ostream & operator<<(std::ostream &os, const bus_stop &bs) { return os << bs.latitude << bs.longitude << ' ' << bs.description(); } ///////////////////////////////////////////////////////////// // Several kinds of bus stops // // illustrates serialization of derived types // class bus_stop_corner : public bus_stop { friend class boost::serialization::access; std::string street1; std::string street2; virtual std::string description() const { return street1 + " and " + street2; } template<class Archive> void serialize(Archive &ar, const unsigned int version) { // save/load base class information ar & boost::serialization::base_object<bus_stop>(*this); ar & street1 & street2; } public: bus_stop_corner(){} bus_stop_corner(const int & _lat, const int & _long, const std::string & _s1, const std::string & _s2 ) : bus_stop(_lat, _long), street1(_s1), street2(_s2) { } }; BOOST_CLASS_EXPORT_GUID(bus_stop_corner, "bus_stop_corner") class bus_stop_destination : public bus_stop { friend class boost::serialization::access; std::string name; virtual std::string description() const { return name; } template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & boost::serialization::base_object<bus_stop>(*this) & name; } public: bus_stop_destination(){} bus_stop_destination( const int & _lat, const int & _long, const std::string & _name ) : bus_stop(_lat, _long), name(_name) { } }; BOOST_CLASS_EXPORT_GUID(bus_stop_destination, "bus_stop_destination") void save(const bus_stop * const s, std::stringstream &ss) /* NOTE extra const here !! */ { std::cout << "original"; std::cout << *s; boost::archive::text_oarchive oa(ss); //oa.register_type(static_cast<bus_stop_corner *>(NULL)); //oa.register_type(static_cast<bus_stop_destination *>(NULL)); oa << s; } void restore( std::stringstream &ss) { bus_stop *s; boost::archive::text_iarchive ia(ss); //ia.register_type(static_cast<bus_stop_corner *>(NULL)); //ia.register_type(static_cast<bus_stop_destination *>(NULL)); ia >> s; std::cout << "restored"; std::cout << *s; } int main(int argc, char *argv[]) { // fill in the data // make a few stops bus_stop *bs0 = new bus_stop_corner( 34, 134, "24th Street", "10th Avenue" ); bus_stop *bs1 = new bus_stop_corner( 35, 133, "State street", "Cathedral Vista Lane" ); bus_stop *bs2 = new bus_stop_destination( 35, 133, "White House" ); bus_stop *bs3 = new bus_stop_destination( 35, 133, "Lincoln Memorial" ); { std::stringstream ss; // display the complete schedule save(bs0,ss); restore(ss); } { std::stringstream ss; // display the complete schedule save(bs1,ss); restore(ss); } { std::stringstream ss; // display the complete schedule save(bs2,ss); restore(ss); } { std::stringstream ss; // display the complete schedule save(bs3,ss); restore(ss); } return 0; }

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Re: [Boost-users] Dynamically creating classed by name?
by Wu Yinghui, Freddie 30 Mar '06

30 Mar '06

> Note that a component of the serialization library "extended_type_info" addresses > this issue (as it must) in order to de-serialize pointers. You might look in > the serialization documentation. > > Robert Ramey Frankly speaking, I've been researching on this topic as well. Most of the current libraries (e.g. Reflex) uses external programs/scripts to general the "stub" program for reflection support. This is not acceptable for our current environment. Boost.Serialization was a very good candidate, though a little bit difficult to use--It provides the necessary support all under the hood of C++ and C++ alone. Nonetheless, though I've inspected "extended_type_info" reference in the manual a number of times, I'm sorry that I cannot see how to achieve what Rob Caldecott wanted using it. Maybe you can shed some light on this? TIA! Cheers, Freddie > Rob Caldecott wrote: > > Is there any way that, using Boost, you can dynamically create > > classes by name, similar to the MFC RUNTIME_CLASS macros? I was > > hoping that the boost::serialize libs might be able to help with this. > > > > For example, I want to be able to do something like: > > > > CMyClass* pClass = CREATE_CLASS_BY_NAME("CMyClass"); > > > > Can Boost help me to achieve this? -- Wu Yinghui, Freddie Research & Development Software Engineer Volume Interactions Pte Ltd 1 Kim Seng Promenade, #12-01 Great World City East Tower Singapore 237994 Tel: +65 62226962 (Ext 216) Fax: +65 62226215 Email: yhwu(a)volumeinteractions.com URL: http://www.volumeinteractions.com Important: This message is intended for the recipient(s) addressed above. It contains privileged and confidential information. If you are not the intended recipient, please notify the sender immediately by replying to this message and then delete it from your system. You must not read, copy, use, or disseminate this communication in any form. Thank you.

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Boost::Python core dump
by Dave Steffen 29 Mar '06

29 Mar '06

Hi folks, I've got a Boost::Python compatibility question. Our application is written in python, with a bunch of math stuff written in C++ and access from python via Boost::Python. Having recently rebuilt from scratch, the python code (which formerly worked) now produces an (almost) immediate core dump: ./run_gui.sh: line 3: 25950 Segmentation fault (core dumped) python gui/bntd_gui.py $* GDB is generally unhelpful, but it _looks_ like the problem happens while it's loading shared libraries; that is, the core dump indicates that Python is dying somewhere at the end of the "load shared libraries" stage. Does anybody have any advice? What sorts of things might cause this? Might a mismatch be a compiler-used-for-building-python vs compiler-used-for-building-my-app incompatibility? I'm using python 2.3.3 (built with GCC 3.4.1), and building the C++ code into shared libs with GCC 3.3.1 (not the same!). Any thoughts would be greatly appreciated. Thanks! ---------------------------------------------------------------------- Dave Steffen, Ph.D. Fools ignore complexity. Pragmatists Software Engineer IV suffer it. Some can avoid it. Geniuses Numerica Corporation remove it. ph (970) 419-8343 x27 -- Alan Perlis fax (970) 223-6797 dgsteffen(a)numerica.us

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Re: [Boost-users] [MultiArray] Banded matrix
by Sohail Somani 29 Mar '06

29 Mar '06

Yes, I think this seems to be the case. I read some posts about how multi_array might be extended to support more numerical code. How do you suppose this would be done? > -----Original Message----- > From: Ronald Garcia [mailto:garcia@cs.indiana.edu] > Sent: Wednesday, March 29, 2006 2:10 PM > To: Sohail Somani > Cc: boost-users(a)lists.boost.org > Subject: Re: [MultiArray] Banded matrix > > Hi Sohail, > > You will likely not be able to get this to work correctly. The > multi_array_ref operators rely upon the dense representation of an > array. More likely you will want to use template function that uses > array notation as in: > > template <class Array> > void some_fcn(const Arrray& m); > > ron > > On Mar 29, 2006, at 3:04 PM, Sohail Somani wrote: > > > Well, I'd like to use a banded_matrix *as* a multi_array. > For example: > > > > some_fcn( const multi_array_ref<T,2> & m); > > > > I'd like to pass in an implementation of a multi_array_ref<T,2> > > that is > > optimized to only hold three diagonals of the array (for example). > > > > Should this not be done? :) > > > > Sohail > > > >> -----Original Message----- > >> From: Ronald Garcia [mailto:garcia@cs.indiana.edu] > >> Sent: Wednesday, March 29, 2006 12:01 PM > >> To: Sohail Somani > >> Cc: boost-users(a)lists.boost.org > >> Subject: Re: [MultiArray] Banded matrix > >> > >> Hi Sohail, > >> > >> I'm not clear on what you mean "used as a multi_array_ref". Could > >> you elaborate what you are tryijng to do? > >> > >> ron > >> > >> On Mar 28, 2006, at 1:56 PM, Sohail Somani wrote: > >> > >>> Hi, > >>> > >>> I'd like to continue to use multi array as my array type > >> for numerical > >>> work. I'd like to hear some suggestions on how I could implement a > >>> banded matrix based on multi_array such that it could be used as a > >>> multi_array_ref. The obvious solution is to subclass, have > >> an array of > >>> multi_array<T,1> and overload the indexing operators. > >>> > >>> Are there any gotchas? > >>> > >>> Thanks! > >>> > >>> Sohail > >> > >> > >

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Re: [Boost-users] [MultiArray] Banded matrix
by Sohail Somani 29 Mar '06

29 Mar '06

Well, I'd like to use a banded_matrix *as* a multi_array. For example: some_fcn( const multi_array_ref<T,2> & m); I'd like to pass in an implementation of a multi_array_ref<T,2> that is optimized to only hold three diagonals of the array (for example). Should this not be done? :) Sohail > -----Original Message----- > From: Ronald Garcia [mailto:garcia@cs.indiana.edu] > Sent: Wednesday, March 29, 2006 12:01 PM > To: Sohail Somani > Cc: boost-users(a)lists.boost.org > Subject: Re: [MultiArray] Banded matrix > > Hi Sohail, > > I'm not clear on what you mean "used as a multi_array_ref". Could > you elaborate what you are tryijng to do? > > ron > > On Mar 28, 2006, at 1:56 PM, Sohail Somani wrote: > > > Hi, > > > > I'd like to continue to use multi array as my array type > for numerical > > work. I'd like to hear some suggestions on how I could implement a > > banded matrix based on multi_array such that it could be used as a > > multi_array_ref. The obvious solution is to subclass, have > an array of > > multi_array<T,1> and overload the indexing operators. > > > > Are there any gotchas? > > > > Thanks! > > > > Sohail > >

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[MultiArray] Banded matrix
by Sohail Somani 29 Mar '06

29 Mar '06

Hi, I'd like to continue to use multi array as my array type for numerical work. I'd like to hear some suggestions on how I could implement a banded matrix based on multi_array such that it could be used as a multi_array_ref. The obvious solution is to subclass, have an array of multi_array<T,1> and overload the indexing operators. Are there any gotchas? Thanks! Sohail

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