November 2006 - Boost-users - lists.preview.boost.org

dijkstra_shortest_paths and Python
by Hugo Ferreira 30 Nov '06

30 Nov '06

HI there, I'm trying to use the BGL bindings for python found here: http://www.osl.iu.edu/~dgregor/bgl-python/ The problem is that I can't seem to understand how the dijkstra_shortest_paths() and the corresponding graph works. My code, so far, is like this: ---8<---8<--- import boost as bgl graph = bgl.Graph() a = graph.add_vertex() b = graph.add_vertex() e = graph.add_edge(a, b) weights = graph.edge_property_map('integer') weights[e] = 5 graph.edge_properties['weight'] = weights boost.dijkstra_shortest_paths(graph, a) ---8<---8<--- Which, of course, complains about the dijkstra_shortest_paths function signature. Can anyone please provide me an working example of setting up a graph and calling this function? I basically need the shortest path from vertex A to vertex B. Thanks in advance, Hugo Ferreira -- GPG Fingerprint: B0D7 1249 447D F5BB 22C5 5B9B 078C 2615 504B 7B85

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BGL: Retrieving a vertex_descriptor from a custom property?
by Peter Palotas 30 Nov '06

30 Nov '06

I'm wondering if it is somehow possible to attach a custom property (eg. a pointer to some object) to each vertex in a graph, and then lookup the vertex based on that index? My first attempt was to use a simple map outside of the graph, mapping my custom property to a vertex_descriptor, but since the vertex_descriptors seem to change as vertices are inserted and removed this does not work. Is it possible to do this using BGL? An example would be greatly appreciated. Sincerely, Peter

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more lambda issues
by Noah Roberts 30 Nov '06

30 Nov '06

I'm kind of loosing faith that this list ever responds to questions but here goes anyway. I've narrowed a problem down to this: #include <iostream> #include <boost/lambda/lambda.hpp> #include <boost/lambda/bind.hpp> struct test_b { test_b() { std::cerr << "test_b::test_b()\n"; } test_b(test_b const&) { std::cerr << "test_b::test_b(test_b const&)\n"; } virtual int f() = 0; //{ return 5; } }; struct test_d : test_b { test_d() : test_b() { std::cerr << "test_d::test_d()\n"; } test_d(test_d const& d) : test_b(d) { std::cerr << "test_d::test_d(test_d const&)\n"; } int f() { return 5; } }; int main(void) { namespace l = boost::lambda; test_b & td = test_d(); std::cerr << "Value: " << (l::bind(&test_b::f, l::_1))(td) << "\n"; int x; std::cin >> x; } Compiler result: cannot instantiate abstract class test_b. Because lambda doesn't seem to be able to handle smart pointers at all I have been trying to come up with a way to pass the dereferenced result into the function call. Nothing is working. In the end lambda must be able to handle the above in order to make this work. If lambda cannot handle this simple case I just don't see how it can be any use. The full compiler output follows: 1>c:\boost\include\boost-1_33_1\boost\tuple\detail\tuple_basic.hpp(419) : error C2259: 'test_b' : cannot instantiate abstract class 1> due to following members: 1> 'int test_b::f(void)' : is abstract 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\playground\playground\playground.cpp(14) : see declaration of 'test_b::f' 1> c:\boost\include\boost-1_33_1\boost\tuple\detail\tuple_basic.hpp(329) : see reference to class template instantiation 'boost::tuples::cons<HT,TT>' being compiled 1> with 1> [ 1> HT=test_b, 1> TT=boost::lambda::detail::deduce_non_ref_argument_types_<boost::tuples::cons<const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::tuples::detail::map_tuple_to_cons<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>::type>::tail_type,boost::tuples::tuple<test_b &,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>>::type 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(151) : see reference to class template instantiation 'boost::tuples::cons<HT,TT>' being compiled 1> with 1> [ 1> HT=int (__thiscall test_b::* const )(void), 1> TT=boost::tuples::cons<test_b,boost::lambda::detail::deduce_non_ref_argument_types_<boost::tuples::cons<const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::tuples::detail::map_tuple_to_cons<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>::type>::tail_type,boost::tuples::tuple<test_b &,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>>::type> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(228) : see reference to class template instantiation 'boost::lambda::detail::has_null_type<Tuple>' being compiled 1> with 1> [ 1> Tuple=boost::tuples::cons<int (__thiscall test_b::* const )(void),boost::tuples::cons<test_b,boost::lambda::detail::deduce_non_ref_argument_types_<boost::tuples::cons<const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::tuples::detail::map_tuple_to_cons<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>::type>::tail_type,boost::tuples::tuple<test_b &,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>>::type>> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(398) : see reference to class template instantiation 'boost::lambda::detail::deduce_non_ref_argument_types<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::tuple<int (__thiscall test_b::* const )(void),const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>, 1> SigArgs=boost::tuples::tuple<test_b &,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> 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\playground\playground\playground.cpp(32) : see reference to class template instantiation 'boost::lambda::lambda_functor_base<Act,Args>::sig<SigArgs>' being compiled 1> with 1> [ 1> Act=boost::lambda::action<2,boost::lambda::function_action<2>>, 1> Args=boost::tuples::tuple<int (__thiscall test_b::* const )(void),const boost::lambda::lambda_functor<boost::lambda::placeholder<1>>,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>, 1> SigArgs=boost::tuples::tuple<test_b &,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> 1> ]

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Re: [Boost-users] Suggestion for boost`s smart pointers
by Sohail Somani 30 Nov '06

30 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of mark cox > Sent: Tuesday, November 28, 2006 2:37 PM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Suggestion for boost`s smart pointers > > wow, this seems like a great idea, a scoped_ptr with deleter > would be v.useful. > mark I've been thinking something like (just something I hacked together just now). Not sure if there is a nicer way. #include <string> #include <cstdio> #include <iostream> template<typename T> struct DeletingDeleter { DeletingDeleter(T * p) { delete p; std::cout << "DeletingDeleter" << std::endl; } }; struct FileCloser { FileCloser(FILE * f) { std::cout << "Closing file" << std::endl; fclose(f); } }; template<typename T, typename Deleter=DeletingDeleter<T> > struct scoped_ptr { scoped_ptr():p_(0){} scoped_ptr(T * p):p_(p){} ~scoped_ptr() { Deleter d(p_); } T * get() {return p_;} // regular stuff private: T * p_; }; typedef scoped_ptr<FILE,FileCloser> file_ptr; int main() { scoped_ptr<int> a; // maintain old interface scoped_ptr<int> b(new int(5)); file_ptr p(fopen("myfile.txt","w")); fprintf(p.get(),"Hello world!\n"); }

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Re: [Boost-users] [Serialization] error C2027: use of undefined type 'boost::serialization::extended_type_info_null<T>'?
by Lawrence Spector 30 Nov '06

30 Nov '06

Ok, I got past the errors I was having last night. Seemed to have to do with the ordering of the libraries and then an incorrect constant used in the load method. Moving on, I now get the following linker errors: Linking... Creating library Debug/SerializationDemo.lib and object Debug/SerializationDemo.exp demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >::~basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >(void)" (??1?$basic_text_oprimitive@V?$basic_ostream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@XZ) referenced in function "public: __thiscall boost::archive::text_woarchive_impl<class boost::archive::text_woarchive>::~text_woarchive_impl<class boost::archive::text_woarchive>(void)" (??1?$text_woarchive_impl@Vtext_woarchive@archive@boost@@@archive@boost@ @QAE@XZ) demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::text_wiarchive_impl<class boost::archive::text_wiarchive>::text_wiarchive_impl<class boost::archive::text_wiarchive>(class std::basic_istream<unsigned short,struct std::char_traits<unsigned short> > &,unsigned int)" (??0?$text_wiarchive_impl@Vtext_wiarchive@archive@boost@@@archive@boost@ @QAE@AAV?$basic_istream@GU?$char_traits@G@std@@@std@@I@Z) referenced in function "public: __thiscall boost::archive::text_wiarchive::text_wiarchive(class std::basic_istream<unsigned short,struct std::char_traits<unsigned short> > &,unsigned int)" (??0text_wiarchive@archive@boost@@QAE@AAV?$basic_istream@GU?$char_traits @G@std@@@std@@I@Z) demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_iprimitive<class std::basic_istream<unsigned short,struct std::char_traits<unsigned short> > >::~basic_text_iprimitive<class std::basic_istream<unsigned short,struct std::char_traits<unsigned short> > >(void)" (??1?$basic_text_iprimitive@V?$basic_istream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@XZ) referenced in function "public: __thiscall boost::archive::text_wiarchive_impl<class boost::archive::text_wiarchive>::~text_wiarchive_impl<class boost::archive::text_wiarchive>(void)" (??1?$text_wiarchive_impl@Vtext_wiarchive@archive@boost@@@archive@boost@ @QAE@XZ) demo.obj : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >::basic_text_oprimitive<class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > >(class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > &,bool)" (??0?$basic_text_oprimitive@V?$basic_ostream@GU?$char_traits@G@std@@@std @@@archive@boost@@QAE@AAV?$basic_ostream@GU?$char_traits@G@std@@@std@@_N @Z) referenced in function "public: __thiscall boost::archive::text_woarchive_impl<class boost::archive::text_woarchive>::text_woarchive_impl<class boost::archive::text_woarchive>(class std::basic_ostream<unsigned short,struct std::char_traits<unsigned short> > &,unsigned int)" (??0?$text_woarchive_impl@Vtext_woarchive@archive@boost@@@archive@boost@ @QAE@AAV?$basic_ostream@GU?$char_traits@G@std@@@std@@I@Z) Debug/SerializationDemo.exe : fatal error LNK1120: 4 unresolved externals However, if I change the build type to not be unicode, then it all compiles, links, and works. I checked to see what libraries are being linked in a non- unicode build vs. a unicode: Non-Unicode: Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Good Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Good Unicode: Linking to lib file: libboost_wserialization-vc71-sgd-1_33_1.lib // Good Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Why?? Linking to lib file: libboost_serialization-vc71-sgd-1_33_1.lib // Why?? Any ideas? Does the boost serialization possibly have unicode issues in 1.33.1? Thanks in advance, Lawrence

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Re: [Boost-users] serialize explicit template instantiation
by Reusser, Edward 30 Nov '06

30 Nov '06

This email was an eye popper for me because I have never had any luck declaring a template function in a header file and defining the implementation in a cpp file. I either get compilation/link errors, or very odd run-time problems. My understanding is that many compilers (of which mine, the MSVC 7.1 compiler) simply cannot handle this situation at all. I have always had to include the actual implementation of the template function inside the header file, which is a real pain. Note that this has nothing to do with the serialization per se. Are other people finding that newer compilers are finally able to handle this? I have several projects that I could improve by splitting the implementation code away from the headers. Ed -----Original Message----- From: Robert Ramey [mailto:ramey@rrsd.com] Sent: Wednesday, November 29, 2006 8:33 AM To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] serialize explicit template instantiation I just compiled, linked and ran the following program on my system: vc 7.1 Boost 1.35 - HEAD There was no need to explicitly instantiate anything. Robert Ramey #include <boost/serialization/string.hpp> #include <boost/serialization/base_object.hpp> #include <boost/serialization/utility.hpp> #include <boost/serialization/version.hpp> class CSerTest { std::string a_, b_, c_; friend class boost::serialization::access; template<class Archive> void serialize( Archive & ar, const unsigned int ); public: CSerTest(); }; BOOST_CLASS_VERSION(CSerTest, 1); // Class.cpp #include <boost/archive/xml_oarchive.hpp> #include <boost/archive/xml_iarchive.hpp> CSerTest::CSerTest() : a_("1"), b_("2"), c_("3") { } template<class Archive> void CSerTest::serialize( Archive & ar, const unsigned int ) { ar & BOOST_SERIALIZATION_NVP(a_) & BOOST_SERIALIZATION_NVP(b_) & BOOST_SERIALIZATION_NVP(c_); } // main.cpp #include <fstream> ///////////////////////// without effect //////////////////////////////////// //template void CSerTest::serialize<boost::archive::xml_oarchive>(boost::archive::xml_oa rchive&, unsigned int ); int main() { const CSerTest instance; std::ofstream ofs( "out_file.txt" ); boost::archive::xml_oarchive oxa( ofs ); oxa << BOOST_SERIALIZATION_NVP(instance); } The information contained in or attached to this email may be subject to the Export Administration Regulations (EAR), administered by the U.S. Department of Commerce, or the International Traffic in Arms Regulations (ITAR), administered by the U.S. Department of State, and may require an export license from the Commerce or State Department prior to its export. An export can include a release or disclosure to a foreign national inside or outside the United States. Include this notice with any reproduced portion of this information.

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Re: [Boost-users] more lambda issues
by Johan Torp 30 Nov '06

30 Nov '06

I haven't read all of your posts but I think your main problem is that boost bind stores arguments by value and takes them by reference. Because of this it requires lvalues as arguments. You can either add an internal bind to boost::shared_ptrs get() method which returns a raw pointer that can be bound or you can make a functor which accepts a raw pointer (given it won't outlive the shared_ptr). The latter requires you to create a temporary raw pointer when calling the functor since you need an lvalue. Consider the following: struct A{ int foo() {} }; int main() { boost::shared_ptr<A> sa; bind(&A::foo, bind(&boost::shared_ptr<A>::get,_1))(sa); A* pa=sa.get(); bind(&A::foo, _1)(pa); } Best Regards, Johan Torp boost-users-request(a)lists.boost.org wrote: >On 11/29/06, "JOAQUIN LOPEZ MU?Z" <joaquin(a)tid.es> wrote: > >First, thank you for your response. > > > >> std::cerr << "Value: " << >> (l::bind(&test_b::f, l::_1))(boost::ref(td)) << "\n"; >> >> > >Well, I tried putting ref on the other side but this works...my way didn't. > >Now I would need to find how to use this solution for my original >problem when td is actually a shared_ptr to an abstract base: > >boost::shared_ptr<test_b> td = boost::shared_ptr<test_b>(new test_d); > >This does not work: > >l::bind(l::bind(&test_b::f, l::_1), boost::ref(*l::_1))(td) > >Unlike boost::bind, lambda::bind doesn't work like this: > >l::bind(&test_b::f, l::_1)(td) > >This does but can't be used in an algorithm on a container holding >smart pointers: > >l::bind(&test_b::f, l::_1)(boost::ref(*td)) > >Interestingly, boost::bind has an operator == that will allow me to >compare the result of f() to a value just fine...I thought I needed >lambda for this. Boost::bind doesn't suffer from an inability to work >directly with smart pointers and doesn't require special magic to use >them vs. raw vs. non-ptr. So my original problem is solved by tossing >lambda out the airlock but it might be worthwhile to find a way to >accomplish a smart pointer member call with lambda for the future. > >So in the end, my problem is thus: > >std::find_if(cont.begin(), cont.end(), bind(&deref_val_type::f, _1) == 5); > >How is that accomplished with lambda if cont holds smart pointers? So >far I haven't found any way... > > > -- System Developer TouchTable AB Tel: +46 (0)31 773 68 12 johan.torp(a)touchtable.se

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Re: [Boost-users] odd msvc 7.1 compilation errors with mpl
by Küppers, Ben 30 Nov '06

30 Nov '06

craigp wrote: > For some reason, I can't get the IDE to compile BOOST_MPL_ASSERT. <snip> > anyone else seen something like this before?? all the mpl regression tests > compile fine via bjam (using msvc 7.1), so it appears ide-specific, > somehow... I am seeing the same behaviour. I also noticed that a release build seems to be immune to this problem. Also, the problem goes away as soon as the two character types are replaced by template classes and the character types are passed in later. #include <boost/type_traits/is_same.hpp> #include <boost/mpl/assert.hpp> template< class T, class U > struct my { BOOST_MPL_ASSERT( ( boost::is_same< T, U > ) ); // ok }; my<char,char> test; template< class T, class U > void f() { // ... BOOST_MPL_ASSERT( ( boost::is_same< T, U > ) ); // ok BOOST_MPL_ASSERT( ( boost::is_same< char, char > ) ); // ok }; int main() { f< char, char >(); BOOST_MPL_ASSERT( ( boost::is_same< char, char > ) ); // fail } -Ben This e-mail and any attachment is for authorised use by the intended recipient(s) only. It may contain proprietary material, confidential information and/or be subject to legal privilege. It should not be copied, disclosed to, retained or used by, any other party. If you are not an intended recipient then please promptly delete this e-mail and any attachment and all copies and inform the sender. Thank you.

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gccxml compilation error with msc
by craigp 30 Nov '06

30 Nov '06

hello - i'm using gccxml (with pygccxml to generate python wrappers and fusion extension code), and under msc (7.1 in this case) i get compilation errors. it's a trivial fix, since gccxml attempts to emulate msc, it just needs another check in a couple files (naturally you'll probably want to rename 'CDP_USING_GCCXML'). i thought i'd send a patch, since i think others may try using gccxml (esp. since pygccxml is shaping up quite nicely). there are probably other places where this may be a problem, but for now, they're the only ones i've run into. HTH, --craig cvs -z9 diff -u -- and.hpp or.hpp (in directory D:\dev\boost.cvs\boost\boost\mpl\) Index: and.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/mpl/and.hpp,v retrieving revision 1.5 diff -u -r1.5 and.hpp --- and.hpp 2 Sep 2004 15:40:41 -0000 1.5 +++ and.hpp 30 Nov 2006 09:08:40 -0000 @@ -28,7 +28,7 @@ // 'or' and 'and' macros, see http://tinyurl.com/3et69; 'defined(and)' // has to be checked in a separate condition, otherwise GCC complains // about 'and' being an alternative token -#if defined(_MSC_VER) +#if defined(_MSC_VER) && !defined(CDP_USING_GCCXML) #if defined(and) # pragma push_macro("and") # undef and @@ -39,7 +39,7 @@ # define BOOST_MPL_PREPROCESSED_HEADER and.hpp # include <boost/mpl/aux_/include_preprocessed.hpp> -#if defined(_MSC_VER) +#if defined(_MSC_VER) && !defined(CDP_USING_GCCXML) #if defined(and) # pragma pop_macro("and") #endif Index: or.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/mpl/or.hpp,v retrieving revision 1.4 diff -u -r1.4 or.hpp --- or.hpp 2 Sep 2004 15:40:42 -0000 1.4 +++ or.hpp 30 Nov 2006 09:08:46 -0000 @@ -29,7 +29,7 @@ // 'or' and 'and' macros, see http://tinyurl.com/3et69; 'defined(or)' // has to be checked in a separate condition, otherwise GCC complains // about 'or' being an alternative token -#if defined(_MSC_VER) +#if defined(_MSC_VER) && !defined(CDP_USING_GCCXML) #if defined(or) # pragma push_macro("or") # undef or @@ -40,7 +40,7 @@ # define BOOST_MPL_PREPROCESSED_HEADER or.hpp # include <boost/mpl/aux_/include_preprocessed.hpp> -#if defined(_MSC_VER) +#if defined(_MSC_VER) && !defined(CDP_USING_GCCXML) #if defined(or) # pragma pop_macro("or") #endif ____________________________________________________________________________________ Want to start your own business? Learn how on Yahoo! Small Business. http://smallbusiness.yahoo.com/r-index

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Re: [Boost-users] Boost Lambda Newbie question
by Haroon Khan 30 Nov '06

30 Nov '06

Hi, I'm experimenting with the boost lambda library, and I wrote the following code, to go through the vector of numbers and print out statements if the number is greater than 5 or less than 5 int a[]={1,2,3,4,5,6,7,8,9,10,10,9,8,4,7,6,5,4,3,3,1}; std::vector<int> v(a,a+sizeof(a)/sizeof(int)); std::for_each ( v.begin() , v.end() , (if_(_1<5)[ std::cout<<var((boost::format("%d is less than 5\n")%_1).str()) ].else_[ std::cout<<var((boost::format("%d is greater than 5\n")%_1).str()) ]) ); The boost::basic_format::operator % code gives an assertion since the object that is being passed is the placeholder object, and not the current value. Is there a correct way of doing this? Thanks, Haroon

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[iostreams] Any simple examples on implementing a Symmetric_filter?
by eg 30 Nov '06

30 Nov '06

Hi all, I'm new to the iostreams library. It looks pretty cool. We have a bunch of existing objects which already have interfaces for reading and writing their state to a stream, e.g. MyWrite(std::ostream &out) and MyRead(std::istream &in) I've convinced myself I can filter these with iostreams, as I prototyped setting up a filtering stream with an existing gzip_compressor() filter, then reversed it with a gzip_decompressor(). Nice. Now, what I want to do is write my own filter, and thought that a symmetric_filter met my needs based on the description. Unfortunately, there are no simple examples in the tutorial section, and the documentation seems a bit weaker in this area. As a first kick at the can, reading the zlib/bzip implementations is a bit dense to pick out the nuances. Does anyone have an identity_filter example (based on symmetric_filter) that just copies input to output characters? ... or given some dumb c function like the following, how to construct a symmetric_filter using it. my_dumb_crypt(char* in, char* out, char *pwd, int len) { for (int i=0; i < len; ++i) // assumes in, out, and pwd are len long out[i] = in[i] ^ pwd[i]; } Thanks. eg

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[Serialization] error C2027: use of undefined type 'boost::serialization::extended_type_info_null<T>'?
by Lawrence Spector 30 Nov '06

30 Nov '06

Hi all. I'm playing with the boost::serialization library, but having a compile issue, with a very obscure error message. It is as follows: Compiler: VC7.1 on Windows XP I get the following compile errors: Compiling... TestClass.cpp c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(142) : error C2027: use of undefined type 'boost::serialization::extended_type_info_null<T>' with [ T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(142) : see reference to class template instantiation 'boost::serialization::extended_type_info_null<T>' being compiled with [ T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(138) : while compiling class-template member function 'bool boost::archive::detail::iserializer<Archive,T>::is_polymorphic(void) const' with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(375) : see reference to class template instantiation 'boost::archive::detail::iserializer<Archive,T>' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(369) : while compiling class-template member function 'void boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard: :invoke(Archive &,T &)' with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(425) : see reference to class template instantiation 'boost::archive::detail::load_non_pointer_type<Archive,T>::load_standard ' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(418) : while compiling class-template member function 'void boost::archive::detail::load_non_pointer_type<Archive,T>::invoke(Archive &,T &)' with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(572) : see refe rence to class template instantiation 'boost::archive::detail::load_non_pointer_type<Archive,T>' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\basic_text_iarchi ve.hpp(64) : see reference to function template instantiation 'void boost::archive::load<Archive,T>(Archive &,T &)' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\text_wiarchive.hp p(68) : see reference to function template instantiation 'void boost::archive::basic_text_iarchive<Archive>::load_override<T>(T &,int)' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\interface_ iarchive.hpp(76) : see reference to function template instantiation 'void boost::archive::text_wiarchive_impl<Archive>::load_override<T>(T &,int)' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Work\Sandbox\CppThroughCOM\CppThroughCOM\TestClass.cpp(67) : see reference to function template instantiation 'Archive &boost::archive::detail::interface_iarchive<Archive>::operator >><CppTestClass>(T &)' being compiled with [ Archive=boost::archive::text_wiarchive, T=CppTestClass ] c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(142) : error C2146: syntax error : missing ';' before identifier 'typex' c:\Dev.Releasev7.2.CR4556\3rdparty\boost\boost\archive\detail\iserialize r.hpp(142) : error C2065: 'typex' : undeclared identifier Here's my code: CppTestClass.hpp: #pragma once #include <boost/serialization/serialization.hpp> #include <boost/serialization/base_object.hpp> #include <boost/serialization/version.hpp> class CppTestClass { private: int m_x; public: CppTestClass(void); virtual ~CppTestClass(void); private: friend class boost::serialization::access; template<class Archive> void load(Archive & ar, const unsigned int version) { ar & version; ar & m_x; } template<class Archive> void save(Archive & ar, const unsigned int version) const { ar & version; ar & m_x; } public: friend std::wostream& operator<<(std::wostream& p_stream, const CppTestClass& p_testClass) { p_stream << p_testClass.m_x; return p_stream; } friend std::wistream& operator>>(std::wistream& p_stream, CppTestClass& p_testClass) { p_stream >> p_testClass.m_x; return p_stream; } BOOST_SERIALIZATION_SPLIT_MEMBER() public: void setX(int p_x) { m_x = p_x; } int getX() const { return m_x; } }; BOOST_CLASS_VERSION(CppTestClass, 1) In TestClass.cpp: This gives no compile errors: std::wstringstream ofs; boost::archive::text_woarchive oa(ofs); // write class instance to archive ofs << m_cppTestClass; ofs >> serData; However, this does: // create and open an archive for input std::wstringstream ifs; ifs << serData; boost::archive::text_wiarchive ia(ifs); // read class state from archive ia >> m_cppTestClass; //!!! errant line? Any ideas what's going on? Thanks in advance, Lawrence

1 0

lambda warning
by Noah Roberts 29 Nov '06

29 Nov '06

This is about the same function but has been changed to this definition: template < typename T > typename T::const_iterator first_pipe(T const& cont) { namespace l = boost::lambda; typedef esi::metafunc::dereference_type<typename T::value_type>::type value_type; return std::find_if(cont.begin(), cont.end(), (l::bind(&value_type::GetType, *(l::_1))) == DT_PIPE); } Reason being that the function would work ok with containers holding raw pointers but couldn't resolve for smart pointers like shared_ptr. This way works for both, but with shared_ptr I get the warning pasted at the end of this message. Gnu handles it fine even with -Wall and -pedantic. Is there a better way to do what I'm doing and get rid of the warning or do I just need to supress it? Thanks. 1>c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_return_type_traits.hpp(240) : warning C4181: qualifier applied to reference type; ignored 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_traits.hpp(45) : see reference to class template instantiation 'boost::lambda::detail::contentsof_type<A>' being compiled 1> with 1> [ 1> A=const boost::shared_ptr<mock_pipe> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_traits.hpp(53) : see reference to class template instantiation 'boost::lambda::detail::IF_type_<T>' being compiled 1> with 1> [ 1> T=boost::lambda::detail::contentsof_type<const boost::shared_ptr<mock_pipe>> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_return_type_traits.hpp(314) : see reference to class template instantiation 'boost::lambda::detail::IF_type<C,T,E>' being compiled 1> with 1> [ 1> C=true, 1> T=boost::lambda::detail::contentsof_type<const boost::shared_ptr<mock_pipe>>, 1> E=boost::lambda::detail::identity_mapping<boost::lambda::detail::unspecified> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\return_type_traits.hpp(88) : see reference to class template instantiation 'boost::lambda::return_type_1<Act,A>' being compiled 1> with 1> [ 1> Act=boost::lambda::other_action<boost::lambda::contentsof_action>, 1> A=const boost::shared_ptr<mock_pipe> & 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_lambda_func_base.hpp(79) : see reference to class template instantiation 'boost::lambda::return_type_1_prot<Act,A>' being compiled 1> with 1> [ 1> Act=boost::lambda::other_action<boost::lambda::contentsof_action>, 1> A=const boost::shared_ptr<mock_pipe> & 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_lambda_func_base.hpp(248) : see reference to class template instantiation 'boost::lambda::detail::unary_rt<Action,Bound,Open>' being compiled 1> with 1> [ 1> Action=boost::lambda::other_action<boost::lambda::contentsof_action>, 1> Bound=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>, 1> Open=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(191) : see reference to class template instantiation 'boost::lambda::lambda_functor_base<Act,Args>::sig<SigArgs>' being compiled 1> with 1> [ 1> Act=boost::lambda::other_action<boost::lambda::contentsof_action>, 1> Args=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>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(197) : see reference to class template instantiation 'boost::lambda::detail::deduce_non_ref_argument_types_<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::cons<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::detail::map_tuple_to_cons<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>::type>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(225) : see reference to class template instantiation 'boost::lambda::detail::deduce_non_ref_argument_types_<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(398) : see reference to class template instantiation 'boost::lambda::detail::deduce_non_ref_argument_types<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(164) : see reference to class template instantiation 'boost::lambda::lambda_functor_base<Act,Args>::sig<SigArgs>' being compiled 1> with 1> [ 1> Act=boost::lambda::action<2,boost::lambda::function_action<2>>, 1> Args=boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\lambda_functor_base.hpp(213) : see reference to class template instantiation 'boost::lambda::detail::deduce_argument_types_<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_lambda_func_base.hpp(60) : see reference to class template instantiation 'boost::lambda::detail::deduce_argument_types<Args,SigArgs>' being compiled 1> with 1> [ 1> Args=boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\boost\include\boost-1_33_1\boost\lambda\detail\operator_lambda_func_base.hpp(222) : see reference to class template instantiation 'boost::lambda::detail::binary_rt<Action,Bound,Open>' being compiled 1> with 1> [ 1> Action=boost::lambda::relational_action<boost::lambda::equal_action>, 1> Bound=boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>, 1> Open=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\program files\microsoft visual studio 8\vc\include\algorithm(87) : see reference to class template instantiation 'boost::lambda::lambda_functor_base<Act,Args>::sig<SigArgs>' being compiled 1> with 1> [ 1> Act=boost::lambda::relational_action<boost::lambda::equal_action>, 1> Args=boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>, 1> SigArgs=boost::tuples::tuple<const boost::shared_ptr<mock_pipe> &,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> 1> ] 1> c:\program files\microsoft visual studio 8\vc\include\algorithm(96) : see reference to function template instantiation '_InIt std::_Find_if<std::list<_Ty>::_Const_iterator<_Secure_validation>,_Pr>(_InIt,_InIt,_Pr)' being compiled 1> with 1> [ 1> _InIt=std::list<boost::shared_ptr<mock_pipe>>::_Const_iterator<false>, 1> _Ty=boost::shared_ptr<mock_pipe>, 1> _Secure_validation=false, 1> _Pr=boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::relational_action<boost::lambda::equal_action>,boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>>> 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\playground\playground\playground.cpp(44) : see reference to function template instantiation '_InIt std::find_if<std::list<_Ty>::_Const_iterator<_Secure_validation>,boost::lambda::lambda_functor<T>>(_InIt,_InIt,_Pr)' being compiled 1> with 1> [ 1> _InIt=std::list<boost::shared_ptr<mock_pipe>>::_Const_iterator<true>, 1> _Ty=boost::shared_ptr<mock_pipe>, 1> _Secure_validation=true, 1> T=boost::lambda::lambda_functor_base<boost::lambda::relational_action<boost::lambda::equal_action>,boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>>, 1> _Pr=boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::relational_action<boost::lambda::equal_action>,boost::tuples::tuple<boost::lambda::lambda_functor<boost::lambda::lambda_functor_base<boost::lambda::action<2,boost::lambda::function_action<2>>,boost::tuples::tuple<DT_TYPE (__thiscall mock_pipe::* const )(void) 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::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type,boost::lambda::detail::bind_traits<boost::tuples::null_type>::type>>>,const DT_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>>> 1> ] 1> c:\documents and settings\nroberts\my documents\visual studio 2005\projects\playground\playground\playground.cpp(65) : see reference to function template instantiation 'std::list<_Ty>::_Const_iterator<_Secure_validation> first_pipe<list1_t>(const T &)' being compiled 1> with 1> [ 1> _Ty=boost::shared_ptr<mock_pipe>, 1> _Secure_validation=true, 1> T=list1_t 1> ]

1 0

lambda help
by Noah Roberts 29 Nov '06

29 Nov '06

If I change the parameter of first_pipe to "T & cont" this code compiles. As it stands I get this error on the lambda part of the algorithm call. Error 1 error C2664: 'std::list<_Ty>::_Iterator<_Secure_validation>::_Iterator(const std::list<_Ty>::_Iterator<_Secure_validation> &)' : cannot convert parameter 1 from 'std::list<_Ty>::_Const_iterator<_Secure_validation>' to 'const std::list<_Ty>::_Iterator<_Secure_validation> &' How can I adjust my usage so that the lambda function construction resolves the correct constness and will accept the const iterator? Thanks....code follows. #include <iostream> #include <list> #include <boost/shared_ptr.hpp> #include <boost/lambda/lambda.hpp> #include <boost/lambda/bind.hpp> #include <boost/shared_ptr.hpp> namespace esi { namespace metafunc { template < typename T > struct dereference_type { typedef T type; }; template < typename T > struct dereference_type< T* > { typedef T type; }; template < typename T > struct dereference_type< boost::shared_ptr< T > > { typedef T type; }; } } template < typename T > typename T::iterator first_pipe(T const& cont) { namespace l = boost::lambda; typedef esi::metafunc::dereference_type<T::value_type>::type value_type; return std::find_if(cont.begin(), cont.end(), l::bind(&value_type::GetType, l::_1) == DT_PIPE); } enum DT_TYPE { DT_PUMP, DT_PIPE }; struct mock_pipe { bool pipe; mock_pipe(bool b) : pipe(b) {} DT_TYPE GetType() const { return pipe ? DT_PIPE : DT_PUMP; } }; void test_first_pipe() { typedef std::list<mock_pipe*> list1_t; std::list<mock_pipe*> l; l.push_back(new mock_pipe(false)); l.push_back(new mock_pipe(false)); l.push_back(new mock_pipe(false)); list1_t::iterator fit = first_pipe(l); } int main(void) { test_first_pipe(); }

1 1

Re: [Boost-users] Suggestion for boost`s smart pointers
by Sohail Somani 29 Nov '06

29 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of David Klein > > Sohail Somani wrote: > >> -----Original Message----- > >> From: boost-users-bounces(a)lists.boost.org > >> [mailto:boost-users-bounces@lists.boost.org] On Behalf Of mark cox > >> > >> wow, this seems like a great idea, a scoped_ptr with deleter > >> would be v.useful. > >> mark > >> > > > > I've been thinking something like (just something I hacked > together just > > now). Not sure if there is a nicer way. > > [snip] > +1 vote for this idea :) > > i actually kind of did this for my current project, > because i needed a custom deleter for scoped_ptr, > when shared_ptr was to much overhead... As did I, but it was not for performance but for readability. Shared pointers mean... Shared. Scoped don't.

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Re: [Boost-users] Suggestion for boost`s smart pointers
by Sohail Somani 29 Nov '06

29 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Maitre Bart > Sent: Wednesday, November 29, 2006 8:50 AM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users]Suggestion for boost`s smart pointers > > Richard Hadsell <hadsell <at> blueskystudios.com> writes: > > > David Klein wrote: > > [...] If you can implement the feature without adding any data > > members, fine. Otherwise, please create a new class. > > I agree too! > Why not calling it raii_ptr? I like this idea. Defaults to delete?

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Re: [Boost-users] Suggestion for boost`s smart pointers
by Sohail Somani 29 Nov '06

29 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Sohail Somani > > The deleter feature in shared_ptr is very useful for raii > > with any kind of > > resource (variables, functions, objects, etc.). Having it in > > scoped_ptr will > > offer the same advantage for noncopyable pointers. > > > > Thank you. > > +1 from me too but I think the reason is that people wanted > sizeof(scoped_ptr<T>) to be sizeof(T *) (or they don't want it to > change) A part solution could be a second template parameter but of course there can be no state.

4 3

serialize explicit template instantiation
by Jan Boehme 29 Nov '06

29 Nov '06

Hi, I want to use a non inline serialize method of a class. When instantiating it not explicitly the linker quits with undefined symbols. So I tried to instantiate it that way and it does not work anyway. Here is my code. Does anyone see what I've done wrong? I did also try to use export.hpp but it doesn't help too. Thank you very much, Jan. // Class.hpp #include <boost/archive/xml_oarchive.hpp> #include <boost/archive/xml_iarchive.hpp> #include <boost/serialization/string.hpp> #include <boost/serialization/base_object.hpp> #include <boost/serialization/utility.hpp> class CSerTest { std::string a_, b_, c_; friend class boost::serialization::access; template<class Archive> void serialize( Archive & ar, const unsigned int ); public: CSerTest(); }; BOOST_CLASS_VERSION(CSerTest, 1); // Class.cpp #include "Class.hpp" CSerTest::CSerTest() : a_("1"), b_("2"), c_("3") { } template<class Archive> void CSerTest::serialize( Archive & ar, const unsigned int ) { ar & BOOST_SERIALIZATION_NVP(a_) & BOOST_SERIALIZATION_NVP(b_) & BOOST_SERIALIZATION_NVP(c_); } // main.cpp #include <fstream> #include "Class.hpp" ///////////////////////// without effect //////////////////////////////////// template void CSerTest::serialize<boost::archive::xml_oarchive>(boost::archive::xml_oarchive&, unsigned int ); int main() { CSerTest instance; std::ofstream ofs( "out_file.txt" ); boost::archive::xml_oarchive oxa( ofs ); oxa << BOOST_SERIALIZATION_NVP(instance); } The linker (MS version 8) returns with: --- Creating library mytest.lib and object mytest.exp Main.obj : error LNK2019: unresolved external symbol "private: void __thiscall CSerTest::serialize<class boost::archive::xml_oarchive>(class boost::archive::xml_oarchive &,unsigned int)"(??$serialize@ Vxml_oarchive@archive@boost@@@CSerTest@@AAEXAAVxml_oarchive@archive@boost@@ I@Z) referenced in function "public: static void __cdeclboost::serialization::access::serialize<class boost::archive::xml_oarchive,class CSerTest>(class boost::archive::xml_oarchive &,class CSerTest &,unsigned int)"(??$serialize@ Vxml_oarchive@archive@boost@@VCSerTest@@@access@serialization@boost@@ SAXAAVxml_oarchive@archive@2@AAVCSerTest@@I@Z)mytest.exe : fatal error LNK1120: 1 unresolved externals

2 4

using lambda's pointer to member function and boost::function
by rodolfo＠rodsoft.org 29 Nov '06

29 Nov '06

Hi, I'm trying to put a simple lambda functor which uses pointer to member function into a boost::function like this: struct aux { int a() const { return 5; } }; int main() { function<int(const aux &)> f = &_1->*&aux::a; } But the compiler chokes at the assignment with the error: /usr/include/boost/function/function_template.hpp:119: error: cannot convert 'boost::lambda::detail::member_pointer_caller<int, const aux*, int (aux::*)()const>' to 'int' in return I think it should be able to convert the member_pointer_caller to boost::function, as its result (int) is the same of function's result, as well as its only argument is the one that makes the lambda functor valid. According to the documentation, something like this should work because it says that boost::function<int(int, int)> f = _1 + _2 works. Am I missing something? Thank you, Rodolfo Lima.

4 7

FW: Suggestion for boost`s smart pointers
by Sohail Somani 29 Nov '06

29 Nov '06

Hi, Please see the following email about additional template parameters for scoped_ptr. The quick hack I wrote for it is below (I've used this in previous project as well). I think it would be very useful to many users and wouldn't change any source using scoped_ptr. Thanks, Sohail ==== I've been thinking something like (just something I hacked together just now). Not sure if there is a nicer way. #include <string> #include <cstdio> #include <iostream> template<typename T> struct DeletingDeleter { DeletingDeleter(T * p) { delete p; std::cout << "DeletingDeleter" << std::endl; } }; struct FileCloser { FileCloser(FILE * f) { std::cout << "Closing file" << std::endl; fclose(f); } }; template<typename T, typename Deleter=DeletingDeleter<T> > struct scoped_ptr { scoped_ptr():p_(0){} scoped_ptr(T * p):p_(p){} ~scoped_ptr() { Deleter d(p_); } T * get() {return p_;} // regular stuff private: T * p_; }; typedef scoped_ptr<FILE,FileCloser> file_ptr; int main() { scoped_ptr<int> a; // maintain old interface scoped_ptr<int> b(new int(5)); file_ptr p(fopen("myfile.txt","w")); fprintf(p.get(),"Hello world!\n"); } > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of David Klein > Sent: Tuesday, November 28, 2006 4:55 PM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] Suggestion for boost`s smart pointers > > Sohail Somani wrote: > >> -----Original Message----- > >> From: boost-users-bounces(a)lists.boost.org > >> [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > David Klein > >> > >> Sohail Somani wrote: > >> > >>>> -----Original Message----- > >>>> From: boost-users-bounces(a)lists.boost.org > >>>> [mailto:boost-users-bounces@lists.boost.org] On Behalf > Of mark cox > >>>> > >>>> wow, this seems like a great idea, a scoped_ptr with deleter > >>>> would be v.useful. > >>>> mark > >>>> > >>>> > >>> I've been thinking something like (just something I hacked > >>> > >> together just > >> > >>> now). Not sure if there is a nicer way. > >>> > >>> > > [snip] > > > >> +1 vote for this idea :) > >> > >> i actually kind of did this for my current project, > >> because i needed a custom deleter for scoped_ptr, > >> when shared_ptr was to much overhead... > >> > > > > As did I, but it was not for performance but for readability. Shared > > pointers mean... Shared. Scoped don't. > > _______________________________________________ > > Boost-users mailing list > > Boost-users(a)lists.boost.org > > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > > > > > yep exactly, > thatswhy i "ripped" scoped_ptr out of boost and added my > custom_deleter > stuff. > (i only *thought* about shared_ptr to do the job) > > so are there any objections about adding this feature to scoped_ptr? > > -- > regards dave > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users >

1 0

[multiIndex] modify_key
by Jeffrey Holle 29 Nov '06

29 Nov '06

I'm using boost version 1.33.1 and am contemplating using a multiIndex container in my application. The held object will be something like: class element { int x; int y; Object *pObject; }; I need 2 ordered_non_unique indices using x and y and one ordered_unique index on pObject. The problem is that the values of x and y will need to be modified during the life of this container. Since the documentation says these indices are implemented using red-black trees, I think I'm heading for trouble. However, the multiIndex container seems to have a "modify_key" method. I can guarantee that the pObject value will not change, so if I obtain an iterator to an element based on this index, will I be able to modify either x or y and expect their related indices to still work?

2 2

Re: [Boost-users] Suggestion for boost`s smart pointers
by Sohail Somani 28 Nov '06

28 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Maitre Bart > Sent: Tuesday, November 28, 2006 12:36 PM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Suggestion for boost`s smart pointers > > I am assuming I am at the right tribune! (Let me know otherwise) > > I would suggest to add a constructor (as well as the > supporting members and > rules) to scoped_ptr<> that could allow specifying a deleter, as per: > > template<class Y, class D> scoped_ptr(Y * p, D d); > > as the same exists for shared_ptr<>. > > The deleter feature in shared_ptr is very useful for raii > with any kind of > resource (variables, functions, objects, etc.). Having it in > scoped_ptr will > offer the same advantage for noncopyable pointers. > > Thank you. +1 from me too but I think the reason is that people wanted sizeof(scoped_ptr<T>) to be sizeof(T *) (or they don't want it to change)

1 0

Suggestion for boost`s smart pointers
by Maitre Bart 28 Nov '06

28 Nov '06

I am assuming I am at the right tribune! (Let me know otherwise) I would suggest to add a constructor (as well as the supporting members and rules) to scoped_ptr<> that could allow specifying a deleter, as per: template<class Y, class D> scoped_ptr(Y * p, D d); as the same exists for shared_ptr<>. The deleter feature in shared_ptr is very useful for raii with any kind of resource (variables, functions, objects, etc.). Having it in scoped_ptr will offer the same advantage for noncopyable pointers. Thank you.

1 0

boost + linux + mingw ( g++: unrecognized option `-pthread' , cannot find -lrt )
by sfinks 28 Nov '06

28 Nov '06

Hi. Has anyone compiled boost on linux+mingw ? I have Debian Etch, mingw32 mingw32-binutils mingw32-runtime installed. mingw binaries linked as so: (CHROOT-wine-386)root@kroko386:~/boost_1_33_1# find /usr/bin/ -type l -ls|grep 586 9601281 0 lrwxrwxrwx 1 root root 26 Nov 24 08:16 /usr/bin/gcc-3.4.5 -> i586-mingw32msvc-gcc-3.4.5 9601293 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/windres -> i586-mingw32msvc-windres 9601260 0 lrwxrwxrwx 1 root root 19 Nov 24 08:16 /usr/bin/cc -> i586-mingw32msvc-cc 9601282 0 lrwxrwxrwx 1 root root 23 Nov 24 08:16 /usr/bin/gccbug -> i586-mingw32msvc-gccbug 9601259 0 lrwxrwxrwx 1 root root 20 Nov 24 08:16 /usr/bin/c++ -> i586-mingw32msvc-c++ 9601275 0 lrwxrwxrwx 1 root root 20 Nov 24 08:14 /usr/bin/i586-mingw32msvc-cc -> i586-mingw32msvc-gcc 9601264 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/c++filt -> i586-mingw32msvc-c++filt 9601284 0 lrwxrwxrwx 1 root root 19 Nov 24 08:16 /usr/bin/ld -> i586-mingw32msvc-ld 9601290 0 lrwxrwxrwx 1 root root 21 Nov 24 08:16 /usr/bin/size -> i586-mingw32msvc-size 9601278 0 lrwxrwxrwx 1 root root 20 Nov 24 08:16 /usr/bin/gcc -> i586-mingw32msvc-gcc 9601292 0 lrwxrwxrwx 1 root root 22 Nov 24 08:16 /usr/bin/strip -> i586-mingw32msvc-strip 9601285 0 lrwxrwxrwx 1 root root 19 Nov 24 08:16 /usr/bin/nm -> i586-mingw32msvc-nm 9601286 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/objcopy -> i586-mingw32msvc-objcopy 9601283 0 lrwxrwxrwx 1 root root 21 Nov 24 08:16 /usr/bin/gcov -> i586-mingw32msvc-gcov 9601291 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/strings -> i586-mingw32msvc-strings 9601271 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/dllwrap -> i586-mingw32msvc-dllwrap 9601277 0 lrwxrwxrwx 1 root root 20 Nov 24 08:16 /usr/bin/g++ -> i586-mingw32msvc-g++ 9601287 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/objdump -> i586-mingw32msvc-objdump 9601258 0 lrwxrwxrwx 1 root root 19 Nov 24 08:16 /usr/bin/as -> i586-mingw32msvc-as 9601027 0 lrwxrwxrwx 1 root root 26 Nov 24 08:16 /usr/bin/addr2line -> i586-mingw32msvc-addr2line 9601265 0 lrwxrwxrwx 1 root root 20 Nov 24 08:16 /usr/bin/cpp -> i586-mingw32msvc-cpp 9601289 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/readelf -> i586-mingw32msvc-readelf 9601223 0 lrwxrwxrwx 1 root root 19 Nov 24 08:16 /usr/bin/ar -> i586-mingw32msvc-ar 9601266 0 lrwxrwxrwx 1 root root 24 Nov 24 08:16 /usr/bin/dlltool -> i586-mingw32msvc-dlltool 9601288 0 lrwxrwxrwx 1 root root 23 Nov 24 08:16 /usr/bin/ranlib -> i586-mingw32msvc-ranlib (CHROOT-wine-386)root@kroko386:~/boost_1_33_1# now I try to build with command: ~/bjam -sTOOLS=mingw -sGCC_INCLUDE_DIRECTORY=/usr/i586-mingw32msvc/include/ -sGCC_STDLIB_DIRECTORY=/usr/i586-mingw32msvc/lib/ --prefix=/opt/ gcc-C++-action bin/boost/libs/date_time/build/libboost_date_time.so/mingw/debug/shared-linkable-true/threading-multi/greg_month.o g++: unrecognized option `-pthread' /root/boost_1_33_1/libs/date_time/build/../src/gregorian/greg_month.cpp:1: warning: -fPIC ignored for target (all code is position independent) gcc-C++-action bin/boost/libs/date_time/build/libboost_date_time.so/mingw/debug/shared-linkable-true/threading-multi/greg_weekday.o g++: unrecognized option `-pthread' /root/boost_1_33_1/libs/date_time/build/../src/gregorian/greg_weekday.cpp:1: warning: -fPIC ignored for target (all code is position independent) gcc-C++-action bin/boost/libs/date_time/build/libboost_date_time.so/mingw/debug/shared-linkable-true/threading-multi/date_generators.o g++: unrecognized option `-pthread' /root/boost_1_33_1/libs/date_time/build/../src/gregorian/date_generators.cpp:1: warning: -fPIC ignored for target (all code is position independent) gcc-Link-action bin/boost/libs/date_time/build/libboost_date_time.so/mingw/debug/shared-linkable-true/threading-multi/libboost_date_time-mgw-mt-d-1_33_1.so g++: unrecognized option `-pthread' /usr/lib/gcc/i586-mingw32msvc/3.4.5/../../../../i586-mingw32msvc/bin/ld: cannot find -lrt collect2: ld returned 1 exit status What about those: 1) g++: unrecognized option `-pthread' 2) /usr/lib/gcc/i586-mingw32msvc/3.4.5/../../../../i586-mingw32msvc/bin/ld: cannot find -lrt collect2: ld returned 1 exit status Thanks..

5 9

Re: [Boost-users] Boost-Jam - Building Boost.Python extensions
by Lawrence Spector 28 Nov '06

28 Nov '06

Oops. Thanks for the assistance and quick response! =) -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Vladimir Prus Sent: Monday, November 27, 2006 9:54 AM To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Boost-Jam - Building Boost.Python extensions Lawrence Spector wrote: > Hello all. Quick question on boost-jam, because I couldn't get it work > right on my system. When I went into the > $BOOST_ROOT_DIR\libs\python\example\tutorial directory and build as > follows: > > > > bjam -sTOOLS=vc-7_1 > > > > It built with no problems. > > > I then took the tutorial example and moved it outside the boost tree. I > edited the Jamrules so that: > > > > path-global BOOST_ROOT : ../../../.. ; You need to *also* set BOOST_ROOT in environment. The above is Boost.Build definition, and for it to have any effect, or be even read, bjam must be able to find Boost.Build first. - Volodya _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

1 0