January 2007 - Boost-users - lists.preview.boost.org

Compiling boost 1.33.1, Visual Studio 2005 SP1, 64 bit Windows, AMD
by Leslie Brody (TT) 18 Jan '07

18 Jan '07

When compiling boost 1.33.1 with Visual Studio 2005 SP1 for 64 bit AMD on windows I get the following error. once.obj : error LNK2019: unresolved external symbol _InterlockedCompareExchange referenced in function "long __cdecl `anonymous namespace'::compare_exchange(long * volatile,long,long)" (?compare_exchange@?A0x74ecc88f@@YAJREAJJJ@Z) >From what I have seen this works in multiple other projects. This also works if I use that header in a new isolated project. I am assuming it is some compiler setting. But I am not sure which. Any thoughts are greatly appreciated Thank You -Leslie

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using serialization
by 041021042＠fudan.edu.cn 18 Jan '07

18 Jan '07

Dear all, I have been experimenting with the boost serialization library. The working environment is Cygwin + gcc3.4.4 + boost_1_33. I creat the following program, the data structure is about electric circuits. The data is saved successfully, but the loadded data is wrong, some pointers in the Wire objects points to invalid address. While when I compile and run it in another machine (Linux + gcc4.1.1 + boost_1_33_1), it works properly. I wonder if it is a compiler compatibility problem or there is something wrong in my program. #ifndef CIRCUIT_H_ #define CIRCUIT_H_ #include <ostream> #include <string> #include <vector> #include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <boost/serialization/base_object.hpp> #include <boost/serialization/vector.hpp> #include <boost/serialization/nvp.hpp> class Pin { std::string parent; int index; friend std::ostream& operator<< (std::ostream& os, const Pin& pin); friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & BOOST_SERIALIZATION_NVP(parent) & BOOST_SERIALIZATION_NVP (index); } public: Pin(std::string p="", int i=0) : parent(p), index(i) {} }; class Wire { Pin* source; Pin* sink; friend std::ostream& operator<< (std::ostream& os, const Wire& wire); friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & BOOST_SERIALIZATION_NVP(source) & BOOST_SERIALIZATION_NVP(sink); } public: Wire(Pin* src=0, Pin* snk=0) : source(src), sink(snk) {} }; class Block { protected: std::string name; std::vector<Pin*> pins; Block() {} virtual std::ostream& print(std::ostream& os) const; friend std::ostream& operator<< (std::ostream& os, const Block& blk); friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version ) { ar & BOOST_SERIALIZATION_NVP(name) & BOOST_SERIALIZATION_NVP (pins); } public: Block(std::string n, int np) : name(n), pins(np) { for (int i=0; i<np; i++) pins[i] = new Pin(n, i); } virtual ~Block() { for (int i=0; i<pins.size(); i++) delete pins [i]; } Pin* get_pin(int i) { return pins[i]; } std::string get_name() { return name; } virtual std::ostream& print_recursive(std::ostream& os) const { return print(os); } }; class Circuit : public Block { protected: std::vector<Block*> children; std::vector<Wire*> wires; std::ostream& print(std::ostream& os) const; friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar.register_type(static_cast<Circuit *>(NULL)); ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Block); ar & BOOST_SERIALIZATION_NVP(children) & BOOST_SERIALIZATION_NVP(wires); } public: Circuit() : Block() {} Circuit(std::string name, int np) : Block(name, np) { } void add_block(Block& b) { children.push_back(&b); } void add_wire(Wire& w) { wires.push_back(&w); } std::ostream& print_recursive(std::ostream& os) const; }; std::ostream& operator<< (std::ostream& os, const Pin& pin); std::ostream& operator<< (std::ostream& os, const Wire& wire); std::ostream& operator<< (std::ostream& os, const Block& blk); #endif /*CIRCUIT_H_*/ // main.cpp #include <iostream> #include <fstream> #include "circuit.h" void save_circuit(const Circuit& c, const char * filename) { std::ofstream ofs(filename); boost::archive::xml_oarchive oa(ofs); oa << BOOST_SERIALIZATION_NVP(c); } void load_circuit(Circuit& c, const char * filename) { std::ifstream ifs(filename); boost::archive::xml_iarchive ia(ifs); ia >> BOOST_SERIALIZATION_NVP(c); } int main() { Circuit pe1("pe1",5); Circuit top("top", 4); top.add_block(pe1); Wire w6(top.get_pin(0), pe1.get_pin(0)); Wire w7(top.get_pin(1), pe1.get_pin(1)); Wire w8(pe1.get_pin(4), top.get_pin(2)); top.add_wire(w6); top.add_wire(w7); top.add_wire(w8); top.print_recursive(std::cout); save_circuit(top, "circuit.xml"); Circuit top2; load_circuit(top2, "circuit.xml"); top2.print_recursive(std::cout); } There is another problem, when I inlined the 'save' and 'load' function, the following error occured, and the data couldn't be saved. terminate called after throwing an instance of 'boost::archive::xml_archive_exception' what(): unrecognized XML syntax Aborted The program is listed here: int main() { // ... ... // prepare data std::ofstream ofs("circuit.xml"); boost::archive::xml_oarchive oa(ofs); oa << BOOST_SERIALIZATION_NVP(top); Circuit top2; std::ifstream ifs("circuit.xml"); boost::archive::xml_iarchive ia(ifs); ia >> BOOST_SERIALIZATION_NVP(top2); top2.print_recursive(std::cout); } The error occured on both machine. Could anyone explain what's the difference between the two programs. Best regards, Roger Zhou

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Fusion/Phoenix/mpl/lamda/... (was Re: [Bind] arity of arbitrary object)
by Gottlob Frege 18 Jan '07

18 Jan '07

On 1/17/07, Joel de Guzman <joel(a)boost-consulting.com> wrote: > > Peter Dimov wrote: > > arity( _bi::bind_t<R,F,L> ) :- max( arity( e ) ) for each e in L > > arity( X ) :- is_placeholder<X>::value > > > > This could be much easier with a bind that uses a fusion tuple as L. :-) > > Phoenix :) > > Regards, > -- > Joel de Guzman > http://www.boost-consulting.com > http://spirit.sf.net Someone (Joel?) want to explain the differences between fusion/phoenix/mpl/etc/whatever-else-seems-overlapping? Thanks. Tony

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MPL-Buch
by Ovanes Markarian 18 Jan '07

18 Jan '07

Hi Dave, I was going to send to a collegue a link to some sample articles of your and Alexey's book, which were available online, but unfortunately they are not available now. I mean sample chapters from the site: http://www.boost-consulting.org/metaprogramming-book.html Is this intention? With Kind Regards, Ovanes Markarian

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Interprocess & STL
by Sunil Chomal 17 Jan '07

17 Jan '07

Dear All, As it was previously possible to use shmem shared memory allocator with STL containers, is it still possible to use the interprocess shared memory allocator along with STL containers? If I try to use a STL container with interprocess shared memory allocator, I get the following error: Error: cannot convert boost::interprocess::offset_ptr<type> to type* Can someone help with this issue? Regards, Sunil Chomal

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Regression tests for MSVC-8.0 on Win64?
by Anders Dalvander 17 Jan '07

17 Jan '07

Anyone doing regression tests for Microsoft Visual C++ 8.0 on 64-bit Windows? // Anders

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[Bind] arity of arbitrary object
by Chris Uzdavinis 17 Jan '07

17 Jan '07

Can anyone tell me how to determine the arity of an arbitrary bind object? I have a generic function that receives a bind object, but so far I've been unable to detect at compile time how many arguments it takes. Am I overlooking something obvious? Thanks a lot. Chris

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adjaceny_list typedef scope
by Alec Resnick 17 Jan '07

17 Jan '07

It would seem that I'm having a bit of trouble nailing down the scope of a typedef of the adjacency_list type in a class I'm writing. For some reason, I keep getting the error "error: 'directed_graph' does not name a type" when trying to compile the following code using XCode 2.4 with the boost library installed via DarwinPorts and the appropriate library and search paths (/opt/local/lib/ and /opt/local/ include/) set. If someone could help me out with this, I would very much appreciate it. Thanks for your time! Gratefully, a. /* * GARN.h * GA_RuleNetwork * * Created by Alec Resnick on 1/8/07. * Copyright 2007 dror. All rights reserved. * */ #ifndef GRAPH_AUTOMATA_RULE_NETWORK_CLASS_HEADER_FILE #define GRAPH_AUTOMATA_RULE_NETWORK_CLASS_HEADER_FILE #include <iostream> #include <vector> #include <string> #include <math.h> #include <boost/graph/adjacency_list.hpp> #include "GARN_helpers.h" #include "GARN_neighborhood.h" using namespace std; using namespace boost; class GARN{ typedef property<edge_name_t, int> edge_property; typedef property<vertex_name_t, GARN_neighborhood> vertex_property; typedef adjacency_list<vecS, vecS, directedS, vertex_property, edge_property> directed_graph; typedef graph_traits<directed_graph>::vertex_descriptor vertex; typedef graph_traits<directed_graph>::edge_descriptor edge; private: vector<int> lookupTable; int neighborhoodSize; int numStates; int ruleNumber; directed_graph ruleNetwork; vector<GARN_neighborhood> neighborhoodSpace; public: // Constructors------------------------------------------------------------ -> GARN(); GARN(int,int,int); // Destructors------------------------------------------------------------- -> ~GARN(); // Accessors--------------------------------------------------------------- -> directed_graph get_ruleNetwork(); // Mutators---------------------------------------------------------------- -> }; // Constructors------------------------------------------------------------ -----> GARN::GARN(){ } GARN::GARN(int _ruleNumber, int _numStates, int _neighborhoodSize){ ruleNumber = _ruleNumber; numStates = _numStates; neighborhoodSize = _neighborhoodSize; int neighborhoodSpaceSize = int(pow(numStates,neighborhoodSize)); lookupTable = intToNary(ruleNumber, numStates, neighborhoodSpaceSize); typedef property_map<directed_graph, vertex_name_t>::type vertex_map; typedef property_map<directed_graph, edge_name_t>::type edge_map; vertex_map vertexState = get(vertex_name, ruleNetwork); edge_map edgeState = get(edge_name, ruleNetwork); vertex parent, child; for(int i = 0 ; i < neighborhoodSpaceSize; ++i){ parent = add_vertex(ruleNetwork); child = add_vertex(ruleNetwork); GARN_neighborhood firstGeneration(intToNary (i,numStates,neighborhoodSize)); GARN_neighborhood secondGeneration(firstGeneration.stepTo (lookupTable.at(i))); vertexState[parent] = firstGeneration; vertexState[child] = secondGeneration; } } // Destructors------------------------------------------------------------- -----> GARN::~GARN(){ } // Accessors--------------------------------------------------------------- -----> directed_graph GARN::get_ruleNetwork(){ return ruleNetwork; } // Mutators---------------------------------------------------------------- -----> #endif

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Re: [Boost-users] [boost.serialization] compiler warnings
by jsanga＠cox.net 17 Jan '07

17 Jan '07

---- Robert Ramey <ramey(a)rrsd.com> wrote: > Double check that you're compiling with the switch that uses an intrinsic > type for wchar_t rather than a short int. > > Note that a lot of the warnings are from boost::io::state_saver... so maybe > there is an issue there. > > Robert Ramey I double checked. I'm treating wchar_t as an intrinsic type. I tried changing that and didn't notice any difference in the number of warnings issued.

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COM and boost::intrusive_ptr
by Philipp Henkel 17 Jan '07

17 Jan '07

Hi all, I would like to discuss some code I'm using to manage COM objects with intrusive_ptr. 1. I need to access the address of the raw pointer (to use QueryInterface). Therefore I implemented operator& for intrusive_ptr. Like in COM this pointer-pointer will only be used for intialization purposes. My implementation relies on the intrusive_ptr's memory layout and returns reinterpret_cast<T**>(addressof(ptr)). I know, this is evil... CComPtr-like usage: boost::intrusive_ptr<IVideo> video; someObject->QueryInterface(IID_IVideo,(void**)&video); Is there a better way? How do you bring intrusive_ptr and QueryInterface together? 2. My functions intrusive_ptr_add_ref and intrusive_ptr_release are specialized to handle IUnknown instances only. This way I avoid any conflicts with implementations of other reference counted objects. Maybe you can make use of them :-) Here's my code: template<typename T> T** operator&(intrusive_ptr<T>& ptr) { ASSERT(0 == *reinterpret_cast<T**>(addressof(ptr))); return reinterpret_cast<T**>(addressof(ptr)); } template<typename T> inline typename enable_if < is_base_of<IUnknown, T> >::type intrusive_ptr_add_ref(T* pObject) { pObject->AddRef(); } template<typename T> inline typename enable_if < is_base_of<IUnknown, T> >::type intrusive_ptr_release(T* pObject) { pObject->Release(); } Best regards, Philipp

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[regex] Does boost::regex support grouping?
by Roman Morokutti 17 Jan '07

17 Jan '07

Hi, I was just wondering if boost::regex supports grouping in either way. Roman

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Re: [Boost-users] BoostCon 2007 Program Committee progress report
by Peter 17 Jan '07

17 Jan '07

Something else that would be good to do if possible is to record the sessions. If this is possible these videos could be uploaded to youtube, google videos, or .... This way those of us who cannot afford or make the time to go could still learn quite a bit. Thanks, Peter > ------------------------------ > > Message: 4 > Date: Mon, 15 Jan 2007 14:31:03 -0000 > From: "Andrew Marlow" <Andrew.Marlow(a)icap.com> > Subject: Re: [Boost-users] BoostCon 2007 Program Committee progress > report > To: <boost-users(a)lists.boost.org> > Message-ID: > <EF291372CE2908408E5D44327293A81203E4E540(a)ukexmb4.uk.icap.com> > Content-Type: text/plain; charset="us-ascii" > > boost-users-bounces(a)lists.boost.org wrote: > > The conference dates (May 14-16) are firm, and other > > arrangements are moving forward. See > > http://www.boost.org/more/BoostCon07.html > > > This sounds like the bees knees. Unfortunately I will not be able to > persaude my current employer to send me and my colleagues to Colorado > for that week. What plans does Boost have for a UK conference please? I > am trying to get my employer to consider using boost for some platform > independence. > > Regards, > > Andrew Marlow >

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[fusion] construct a tuple's elements with arguments
by Yuval Ronen 17 Jan '07

17 Jan '07

If I have a typedef fusion::tuple<X, Y, Z> T; can I somehow create a T instance like T t(1, "hello"); and by that I mean that each of T's elements (of types X, Y and Z) would be constructed using the constructor that accepts an int and a string, assuming there is such a constructor for all T's elements. If there isn't such constructor for all T's elements, then it shouldn't compile, of course. Of course using the exact syntax above is not possible, because it's reserved for something else, but any other syntax would be just as good (perhaps using in_place_factory). Yuval

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BGL edge properties
by marina mentelmacher 17 Jan '07

17 Jan '07

Hi, I didn’t find a way to define BGL adjacency_list without property pointer on edges. I suppose it’s a bug. It’s edge_descriptor is defined as follows: typedef detail::edge_desc_impl<directed_category, vertex_descriptor> edge_descriptor; and template <typename Directed, typename Vertex> class edge_desc_impl : public edge_base<Directed,Vertex> { typedef edge_desc_impl self; typedef edge_base<Directed,Vertex> Base; public: typedef void property_type; inline edge_desc_impl() : m_eproperty(0) {} inline edge_desc_impl(Vertex s, Vertex d, const property_type* eplug) : Base(s,d), m_eproperty(const_cast<property_type*>(eplug)) { } property_type* get_property() { return m_eproperty; } const property_type* get_property() const { return m_eproperty; } // protected: property_type* m_eproperty; }; I think that edge_descriptor should be derived directly from edge_base. Regards, Roman.

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[boost.serialization] compiler warnings
by jsanga＠cox.net 17 Jan '07

17 Jan '07

I have been experimenting with the boost serialization library. It seems to do what I need. I am using Boost_1_33_1 and Microsoft’s VC8 compiler. When I create a simple little program, I’m getting a lot of compiler warnings even at the /w3 level. Could compiler switches or installation configuration be the problem? #include "stdafx.h" #include <iostream> #include <vector> #include <string> #include <sstream> #include <boost/archive/text_woarchive.hpp> #include <boost/serialization/vector.hpp> typedef std::vector<std::wstring> VCT_WSTR; struct Foo { VCT_WSTR vws; private: // Take care of serializing the class friend class boost::serialization::access; template< class Archive > void serialize( Archive &ar, unsigned int ver ); }; BOOST_CLASS_VERSION ( Foo, 1 ) template< class Archive > void Foo::serialize( Archive &ar, unsigned int /* ver */ ) { ar & vws; } // text archive void Test1( const Foo &foo ) { unsigned int flags = boost::archive::no_header | boost::archive::no_codecvt | boost::archive::no_xml_tag_checking; std::wstringstream wos; boost::archive::text_woarchive oa(wos,flags); oa & foo; std::wcout << L"Foo is " << wos.str() << L"\n"; wos.str(L""); // reset the output stream oa & foo; std::wcout << L"Foo is " << wos.str() << L"\n"; } int _tmain(int argc, _TCHAR* argv[]) { argc; argv; // Set up some recognizable values Foo foo; for( size_t i=0; i < 5; ++i ) foo.vws.push_back( L"Big String for vws" ); Test1( foo ); return 0; } Compiler options are: /O2 /I "D:\Boost_1_33_1" /D "WIN32" /D "NDEBUG" /D "_CONSOLE" /D "_SCL_SECURE_NO_DEPRECATE" /D "_UNICODE" /D "UNICODE" /FD /EHsc /MD /Yu"stdafx.h" /Fp"Release\Test.pch" /Fo"Release\\" /Fd"Release\vc80.pdb" /W4 /nologo /c /Wp64 /Zi /TP /errorReport:prompt Sample of Warnings (at /w4) ------ Build started: Project: Test, Configuration: Release Win32 ------ Compiling... Test.cpp D:\Boost_1_33_1\boost/io/ios_state.hpp(52) : warning C4512: 'boost::io::ios_flags_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(32) : see declaration of 'boost::io::ios_flags_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(75) : warning C4512: 'boost::io::ios_precision_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(55) : see declaration of 'boost::io::ios_precision_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(98) : warning C4512: 'boost::io::ios_width_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(78) : see declaration of 'boost::io::ios_width_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(275) : warning C4512: 'boost::io::ios_iword_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(253) : see declaration of 'boost::io::ios_iword_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(300) : warning C4512: 'boost::io::ios_pword_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(278) : see declaration of 'boost::io::ios_pword_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(330) : warning C4512: 'boost::io::ios_base_all_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(306) : see declaration of 'boost::io::ios_base_all_saver' D:\Boost_1_33_1\boost/io/ios_state.hpp(406) : warning C4512: 'boost::io::ios_all_word_saver' : assignment operator could not be generated D:\Boost_1_33_1\boost/io/ios_state.hpp(382) : see declaration of 'boost::io::ios_all_word_saver' D:\Boost_1_33_1\boost/serialization/void_cast.hpp(127) : warning C4512: 'boost::serialization::void_cast_detail::void_caster' : assignment operator could not be generated D:\Boost_1_33_1\boost/serialization/void_cast.hpp(91) : see declaration of 'boost::serialization::void_cast_detail::void_caster' D:\Boost_1_33_1\boost/io/ios_state.hpp(246) : warning C4512: 'boost::io::basic_ios_locale_saver<Ch>' : assignment operator could not be generated with [ Ch=wchar_t ] D:\Boost_1_33_1\boost/archive/basic_text_oprimitive.hpp(75) : see reference to class template instantiation 'boost::io::basic_ios_locale_saver<Ch>' being compiled with [ Ch=wchar_t ] D:\Boost_1_33_1\boost/archive/text_woarchive.hpp(45) : see reference to class template instantiation 'boost::archive::basic_text_oprimitive<OStream>' being compiled with [ OStream=std::wostream ] D:\Boost_1_33_1\boost/archive/text_woarchive.hpp(99) : see reference to class template instantiation 'boost::archive::text_woarchive_impl<Archive>' being compiled D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(118) : warning C4100: 'flags' : unreferenced formal parameter D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(118) : while compiling class template member function 'bool boost::archive::detail::oserializer<Archive,T>::tracking(const unsigned int) const' with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(264) : see reference to class template instantiation 'boost::archive::detail::oserializer<Archive,T>' being compiled with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(263) : while compiling class template member function 'void boost::archive::detail::save_non_pointer_type<Archive,T>::save_standard::invoke(Archive &,const Foo &)' with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(322) : see reference to class template instantiation 'boost::archive::detail::save_non_pointer_type<Archive,T>::save_standard' being compiled with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(310) : while compiling class template member function 'void boost::archive::detail::save_non_pointer_type<Archive,T>::invoke(Archive &,const Foo &)' with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/detail/oserializer.hpp(536) : see reference to class template instantiation 'boost::archive::detail::save_non_pointer_type<Archive,T>' being compiled with [ Archive=boost::archive::text_woarchive, T=Foo ] D:\Boost_1_33_1\boost/archive/basic_text_oarchive.hpp(78) : see reference to function template instantiation 'void boost::archive::save<Archive,const T>(Archive &,const T &)' being compiled with [ Archive=boost::archive::text_woarchive, T=const Foo ] D:\Boost_1_33_1\boost/archive/detail/interface_oarchive.hpp(78) : see reference to function template instantiation 'void boost::archive::basic_text_oarchive<Archive>::save_override<T>(T &,int)' being compiled with [ Archive=boost::archive::text_woarchive, T=const Foo ] D:\Boost_1_33_1\boost/archive/detail/interface_oarchive.hpp(86) : see reference to function template instantiation 'Archive &boost::archive::detail::interface_oarchive<Archive>::operator <<<T>(T &)' being compiled with [ Archive=boost::archive::text_woarchive, T=const Foo ] .\Test.cpp(60) : see reference to function template instantiation 'Archive &boost::archive::detail::interface_oarchive<Archive>::operator &<const Foo>(T &)' being compiled with [ Archive=boost::archive::text_woarchive, T=const Foo ]

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Re: [Boost-users] Visual C++ 2005 help installing Boost
by Harry Georgakopoulos 17 Jan '07

17 Jan '07

I am having exactly the same problem as a previous user. Could you please show me how you fixed your boost build? I'm getting the following errors ...failed updating 120 targets ...skipped 80 targets... ...updated 847 targets... I don't know how to open the vsvars32.bat file in order to change the paths that Mr Kozicki suggested. Any help would be greatly appreciated. I have installed the latest SDK. Also, how do i get rid of the warnings? I know i need to define _SCL_SECURE_NO_DEPRECATE globally, but how do i do that exactly? Finally, how do i know i have a correct build install? How do i test it? Thank you Please send your response to hgeorgako(a)hotmail.com harry g.

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program_options' exception "Only one tab per paragraph is allowed"
by Peng Yu 16 Jan '07

16 Jan '07

Hi, I got the following exception thrown, when I have multiple tabs (boost 1.33.1). The code worked fine with boost 1.32.0. I'm wondering if there any specific reason to throw this exception in the newer version. If I need multiple tabs, are there any work around? Thanks, Peng terminate called after throwing an instance of 'boost::program_options::error' what(): Only one tab per paragraph is allowed Aborted

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including export.hpp
by Miguel Silvestre 16 Jan '07

16 Jan '07

Ok! Instantiation On the Documentation it says: "...the header file export.hpp has to come after all the archive header files... in the Instatiation. And in the code of the file basic_archive.hpp it says: #error "export.hpp must not be included before any archive header" :S -- Miguel Silvestre

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[boost.python][newbie], i can't compile with it
by Voph Devel 16 Jan '07

16 Jan '07

hello I'm entirely new to boost and also to python... For my first step I'm still having troubles for compiling my c++ code. just including <boost/python.hpp> leads my gcc to output these errors. g++ -O0 -g3 -Wall -c -fmessage-length=0 -oEnvPython.o ../EnvPython.cpp In file included from /usr/include/boost/python/detail/prefix.hpp:13, from /usr/include/boost/python/args.hpp:8, from /usr/include/boost/python.hpp:11, from ../EnvPython.h:4, from ../EnvPython.cpp:1: /usr/include/boost/python/detail/wrap_python.hpp:50:23: error: pyconfig.h: No such file or directory /usr/include/boost/python/detail/wrap_python.hpp:74:24: error: patchlevel.h: No such file or directory /usr/include/boost/python/detail/wrap_python.hpp:77:2: error: #error Python 2.2 or higher is required for this version of Boost.Python. /usr/include/boost/python/detail/wrap_python.hpp:141:21: error: Python.h: No such file or directory ( and then a thousand lines of errors...) I didn't manually build boost and boost.python. I'm running Debian, and I have the corresponding .so files for boost and python in my usr/lib. I have python 2.3 2.4 and 2.5 installed. pyconfig.h seems to be auto-generated. but i haven't a single clue for launching this ? do you know about my problem ?

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Re: [Boost-users] BoostCon 2007 Program Committee progress report
by Andrew Marlow 15 Jan '07

15 Jan '07

boost-users-bounces(a)lists.boost.org wrote: > It would probably make a lot more sense to combine it with > the annual ACCU conference in Oxford. Sounds interesting. I wonder how that would work? I usually attend the ACCU conferences and find myself torn between great talks that are happening at the same time. If boost talks were also going on at the time I might go crazy! > > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Andrew Marlow <snip> This sounds like the bees knees. > Unfortunately I will not be able to persaude my current > employer to send me and my colleagues to Colorado for that > week. What plans does Boost have for a UK conference please? ******************************************************************************" The data and information (collectively called Information) herein is the sole property of ICAP. The Information is confidential, may be legally privileged and is intended solely for the use of the individual or entity to whom it is addressed. Unauthorised disclosure, copying or distribution of the Information is strictly prohibited and the recipient of the Information shall not redistribute the Information in any form to a third party. If you received this Information in error please tell us by reply (or telephone the sender) and delete all copies on your system. References in this Information to ICAP are references to ICAP plc, a company incorporated in England with registered number 3611426 whose registered office is 2 Broadgate, London, EC2M 7UR and where the context requires, includes its subsidiary and associated undertakings. As applicable, certain companies within the ICAP group are authorised and regulated by the Financial Services Authority. Any investment research sent from ICAP will provide an impartial and objective assessment of the securities, companies or other matters that are the subject of their research and our Conflicts of Interest Management Policy regarding investment research can be viewed by requesting a copy from your usual contact at ICAP. Please visit www.icap.com for further regulatory information including details regarding the European eCommerce Directive. *******************************************************************************" We have taken precautions to minimise the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message. We cannot accept liability for any loss or damage caused by software viruses. " *******************************************************************************

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Re: [Boost-users] BoostCon 2007 Program Committee progress report
by Schalk_Cronje＠McAfee.com 15 Jan '07

15 Jan '07

It would probably make a lot more sense to combine it with the annual ACCU conference in Oxford. -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Andrew Marlow <snip> This sounds like the bees knees. Unfortunately I will not be able to persaude my current employer to send me and my colleagues to Colorado for that week. What plans does Boost have for a UK conference please? I am trying to get my employer to consider using boost for some platform independence. </snip>

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Re: [Boost-users] Deriving Serialization classes
by Miguel Silvestre 15 Jan '07

15 Jan '07

???? a) But I'm deriving it from text_archive_imp b) what? I didn't understand.. As I said the binary serialization is working fine c) Onde again what do you mean?? How can I derivate the serialization classes?? I've tried the following code to, but with the same error: class TextArchiveO : public IArchive, // don't derive from text_oarchive !!! public boost::archive::text_oarchive_impl<TextArchiveO> { public: TextArchiveO(std::ostream & os, unsigned flags = 0) : boost::archive::text_oarchive_impl<TextArchiveO>(os, flags) {} ~TextArchiveO(){} virtual void Serialize(int& t) { *this & BOOST_SERIALIZATION_NVP(t); } virtual void Serialize(bool& t) { *this & BOOST_SERIALIZATION_NVP(t); } }; class TextArchiveI : public IArchive, // don't derive from text_oarchive !!! public boost::archive::text_iarchive_impl<TextArchiveI> { public: TextArchiveI(std::istream & is, unsigned flags = 0) : boost::archive::text_iarchive_impl<TextArchiveI>(is,flags) {} ~TextArchiveI(){} virtual void Serialize(int& t) { *this & BOOST_SERIALIZATION_NVP(t); } virtual void Serialize(bool& t) { *this & BOOST_SERIALIZATION_NVP(t); } }; On 1/10/07, Robert Ramey <ramey(a)rrsd.com> wrote: > > > > a) try deriving from text_?archive_impl rather than IArray > b) If you're going to put your own archive in a separate file - make sure you find > a way to explicitly instantiat it. See text_oarchive.cpp in the library. > c) I wouldn't recommend using the HEAD branch for "real" code since > this is altered from time to time. > > Robert Ramey > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > -- Miguel Silvestre -- Miguel Silvestre

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Re: [Boost-users] BoostCon 2007 Program Committee progress report
by Andrew Marlow 15 Jan '07

15 Jan '07

boost-users-bounces(a)lists.boost.org wrote: > The conference dates (May 14-16) are firm, and other > arrangements are moving forward. See > http://www.boost.org/more/BoostCon07.html > This sounds like the bees knees. Unfortunately I will not be able to persaude my current employer to send me and my colleagues to Colorado for that week. What plans does Boost have for a UK conference please? I am trying to get my employer to consider using boost for some platform independence. Regards, Andrew Marlow ******************************************************************************" The data and information (collectively called Information) herein is the sole property of ICAP. The Information is confidential, may be legally privileged and is intended solely for the use of the individual or entity to whom it is addressed. Unauthorised disclosure, copying or distribution of the Information is strictly prohibited and the recipient of the Information shall not redistribute the Information in any form to a third party. If you received this Information in error please tell us by reply (or telephone the sender) and delete all copies on your system. References in this Information to ICAP are references to ICAP plc, a company incorporated in England with registered number 3611426 whose registered office is 2 Broadgate, London, EC2M 7UR and where the context requires, includes its subsidiary and associated undertakings. As applicable, certain companies within the ICAP group are authorised and regulated by the Financial Services Authority. Any investment research sent from ICAP will provide an impartial and objective assessment of the securities, companies or other matters that are the subject of their research and our Conflicts of Interest Management Policy regarding investment research can be viewed by requesting a copy from your usual contact at ICAP. Please visit www.icap.com for further regulatory information including details regarding the European eCommerce Directive. *******************************************************************************" We have taken precautions to minimise the risk of transmitting software viruses, but we advise you to carry out your own virus checks on any attachment to this message. We cannot accept liability for any loss or damage caused by software viruses. " *******************************************************************************

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[bind] Overloaded function names
by Mark Ruzon 15 Jan '07

15 Jan '07

I have a function that performs the same task on several data types and data combinations: template <typename T> int f(const type1<T>& x); template <typename T> int f(const type2<T>& x); template <typename T> int f(const type2<T>& x, const type2<T>& y); I want to create a function object out of the second function. However, bind(f, _1) is ambiguous. Is there a way to disambiguate this using a bind call, or do I have to create my own function object? Thanks, Mark

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[BGL] remove_edge with vecS for vertices and setS for edges
by Alejandro Marcos Aragón 15 Jan '07

15 Jan '07

Hi everyone, I was wondering if the library handles the edge removal for graphs that use the vecS as a container for the vertices and the setS for the edges. I've been trying to use the function and I have a segmentation fault. Thank you, a^2

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