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Re: [Boost-users] Boost 1.34 and VC++ 64
by Yutaka Leon Suematsu 13 Jun '07

13 Jun '07

Hi Chris, Thank you for your help. >> The command I used was: >> >> bjam --build-dir=C:\tmp\build-boost --toolset=msvc address-model=64 >> stage > > Hi, > you have to use the 'Visual Studio x64 Win64 Command Prompt', so > the correct environment variables are set and then use bjam like: > > bjam --build-dir=C:\tmp\build-boost --toolset=msvc-8-0_64 stage > I could compile with the toolset "msvc-8.0_64", I didn't know its existence. bjam --build-dir=C:\tmp\build-boost --toolset=msvc-8.0_64 stage Thanks, Yutaka.

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multi_index and base class
by Andrej van der Zee 13 Jun '07

13 Jun '07

Hi, I'm trying to store these classes in a multi_index: struct Foo { int a; }; struct Bar :Foo { }; typedef multi_index_container< Bar, indexed_by< ordered_unique< member<Foo, int, &Bar::a> > > > Bar_container; Notice I have to use "Foo" in the "member<" line. However, even with this, when trying to do a search: Bar_container bar_container; int function() { Bar_container::nth_index<0>::type& a_index = bar_container.get<0>(); Bar_container::nth_index<0>::type::iterator i = a_index.find(5); if (i != a_index.end()) return -1; return 0; } I get this: /usr/include/boost/multi_index/member.hpp: In member function 'Type& boost::multi_index::detail::non_const_member_base<Class, Type, PtrToMember>::operator()(const ChainedPtr&) const [with ChainedPtr = Bar, Class = Foo, Type = int, Type Class::* PtrToMember = &Foo::a]': /usr/include/boost/multi_index/detail/ord_index_ops.hpp:65: instantiated from 'Node* boost::multi_index::detail::ordered_index_find(Node*, const KeyFromValue&, const CompatibleKey&, const CompatibleCompare&) [with Node = boost::multi_index::detail::ordered_index_node<boost::multi_index::detail::i ndex_node_base<Bar> >, KeyFromValue = boost::multi_index::member<Foo, int, &Foo::a>, CompatibleKey = int, CompatibleCompare = std::less<int>]' /usr/include/boost/multi_index/ordered_index.hpp:376: instantiated from 'boost::multi_index::detail::index_iterator<boost::multi_index::detail::orde red_index_node<typename SuperMeta::type::node_type> > boost::multi_index::detail::ordered_index<KeyFromValue, Compare, SuperMeta, TagList, Category>::find(const CompatibleKey&) const [with CompatibleKey = int, KeyFromValue = boost::multi_index::member<Foo, int, &Foo::a>, Compare = std::less<int>, SuperMeta = boost::multi_index::detail::nth_layer<1, Bar, boost::multi_index::indexed_by<boost::multi_index::ordered_unique<boost::mul ti_index::member<Foo, int, &Foo::a>, mpl_::na, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<Bar> >, TagList = boost::mpl::vector0<mpl_::na>, Category = boost::multi_index::detail::ordered_unique_tag]' multitest2.cc:55: instantiated from here /usr/include/boost/multi_index/member.hpp:84: error: no match for 'operator*' in '*x' I've tried a few alternatives such as providing a custom compare function but I always get this error. It seems to have something to do with the fact that the key is in the base class. If I move the key to the derived class (and change the "member<" line), it works fine. Surely there's a way to do this. Anyone know how ? Using gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21) and libboost 1.33.1. Thanks ___________________________________________________________ New Yahoo! Mail is the ultimate force in competitive emailing. Find out more at the Yahoo! Mail Championships. Plus: play games and win prizes. http://uk.rd.yahoo.com/evt=44106/*http://mail.yahoo.net/uk

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Problems instantiating class Boost Python class
by Phil 13 Jun '07

13 Jun '07

Hi, I'm a newbie having some problems instantiating a class written in C++ in Python using Boost.Python. I can get a very simple example working when I expose a function outside of a class, that returns a string, but the below fails as shown, despite building. The enum in the same library however works fine. I've googled the error returned from Python and I get zero hits - has anyone get any idea what I'm doing wrong? I'm using Python 2.5, GCC 4.0.1 and Boost 1.33 on Mac OS X 10.4.9. I don't think it matters but I'm building the solution as a dynamic C++ bsd library in XCode and the changing the Mac OS X .dylib extention to .so as is required by Python. This all works for simpler examples and the enum in this example. Error: TypeError: __init__() should return None, not 'NoneType' Thanks, Phil. From header file example.h: enum payOffType { CALL, PUT }; class Option { public: //defaults to call Option( double strike, double expiry ); double getPutCallMultiplier(); private: double strike; double expiry; payOffType type; }; From cpp file example.cpp: Option::Option( double strike, double expiry ) : strike( strike ), expiry( expiry ), type( CALL ) { cout << "Option Contructor called"; } double Option::getPutCallMultiplier() { return ( type == CALL ) ? 1 : -1; } BOOST_PYTHON_MODULE(libphil_boost) { class_<Option>("Option", init<double, double>()) .def("getPutCallMultiplier", &Option::getPutCallMultiplier) ; enum_<payOffType>("payOffType") .value("CALL", CALL) .value("PUT", PUT) ; } Using Python on the resulting .so: $ python Python 2.5.1 (r251:54863, Jun 10 2007, 17:57:56) [GCC 4.0.1 (Apple Computer, Inc. build 5250)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import libphil_boost >>> p = libphil_boost.Option( 23, 23 ) Option Contructor calledTraceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: __init__() should return None, not 'NoneType' >>>

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boost::pool issue
by v r 12 Jun '07

12 Jun '07

Hi, I have a main object that allocates many small objects via singleton_pool , and during its operation main obj uses up much memory so i want to release that memory before program termination, because main obj performs only support operations in my program. So upon main obj destruction i make a singleton_pool::purge_memory() call in main obj destructor, the memory is released and i should be quite happy,but when the main obj is constructed again the pool allocates twice as much memory as it used before, and it continues to double every time i construct/destruct the main object, so very soon my program hangs up. I wonder what have i done wrong? It seems like something is not reset on memory purge, or maybe it`s a bug? --------------------------------- Вы уже с Yahoo!? Испытайте обновленную и улучшенную Yahoo! Почту!

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[asio] Receiving non-UDP multicast frames?
by Eric Hill 12 Jun '07

12 Jun '07

I have been requested to write a tiny diagnostic application that will listen for Cisco Discovery Protocol (CDP) messages from Cisco switches on a workstation so that the workstation will "know" what switch port it is plugged into. I have found the following information with my limited google-foo: CDP Packet Format: http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/frames.htm#xtocid… CDP Information: http://www.cisco.com/en/US/products/hw/switches/ps663/products_tech_note091… The latter link says that CDP uses a destination multicast address 01-00-0c-cc-cc-cc, HDLC protocol type 0x2000 on an Ethernet segment. This is where I get lost. Is that an Ethernet MAC broadcast, or a socket-based broadcast? Can I capture those CDP advertisements with asio? Eric

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Binary 1.34 installer
by Luigi Ballabio 12 Jun '07

12 Jun '07

Hi all, I'm one of the developers of a project that requires a few Boost libraries. First of all, thanks to the people at Boost Consulting who made the binary installer available; we have a constant stream of new users asking for instructions on how to build Boost, and let's just say that since the installer was released for version 1.33.1, it streamlined our answers... we still had a few users we couldn't direct to this solution, though; namely, those behind a corporate firewall. Does the new installer for 1.34 work in this setting? I can't test it myself, as I'm not behind such a firewall. Thanks again, Luigi ---------------------------------------- Blessed is the man who, having nothing to say, abstains from giving wordy evidence of the fact. -- George Eliot

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[Pool] pool_allocator with vector-of-vectors ??
by Williams, Alan B 12 Jun '07

12 Jun '07

I have a question about using the standard allocator interface in the boost.pool library. (I'm using boost 1.34.0 with g++ 3.4.3 on redhat linux, in case it matters.) I've successfully used boost::pool_allocator with individual std::vector objects, but I'm having trouble using it with a vector-of-vectors object, like this: std::vector<std::vector<int, boost::pool_allocator<int> > > myvec(1); myvec[0].push_back(99); The "push_back" line causes a seg-fault, which purify says is an array-bounds-write occurring in boost::simple_segregated_storage<unsigned long>::segregate. Am I misusing the pool_allocator? Thanks, Alan

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[mpl] can't transform a map
by Yuval Ronen 12 Jun '07

12 Jun '07

I have the following code: #include <utility> #include <boost/mpl/map.hpp> #include <boost/mpl/transform.hpp> template <typename MplPair> struct make_ptr_pair1 { typedef std::pair<typename MplPair::first *, typename MplPair::second *> type; }; template <typename First, typename Second> struct make_ptr_pair2 { typedef std::pair<First *, Second *> type; }; int main(int argc, char *argv[]) { namespace mpl = boost::mpl; typedef mpl::map< mpl::pair<int, double> > my_map; //typedef mpl::transform< my_map, make_ptr_pair1<mpl::_1> >::type ptr_pair_seq1; //typedef mpl::transform< my_map, make_ptr_pair2<mpl::_1, mpl::_2> >::type ptr_pair_seq2; return 0; } If I uncomment any of the two mpl::transform lines in main(), the code doesn't compile (VC8). The point is to get a sequence of std::pairs out of the content of the mpl::map. Is there anything I'm doing wrong? Can mpl::transform be used for mpl::map? Maybe I can do it with fusion, but the above code seems to be something that's supposed to be working, isn't it? Yuval

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sun studio 8 5.5 and boost
by Christophe Delarue 12 Jun '07

12 Jun '07

HI boost users, I allready post this request : is boost compatible with compiler sun studio 8 C++ 5.5 ? We are trying to compile boost spirit to use the xml serialization, but we got compiler error on : CC -V CC: Sun C++ 5.5 2003/03/12 + /Soft/sunstudio/8/bin/CC +d -g -xs -mt -DBOOST_ALL_DYN_LINK=1 + -DBOOST_ALL_NO_LIB=1 -I. -I/Home/ut0bcm/Boost/boost_1 _34_0 + -I/Soft/sunstudio/8/prod/include/CC/stlport4 -I/usr/include + -library=stlport4 -c -o bin.v2/libs/wave/build/sun/debug/threading-multi/instantiate_cpp_exprgrammar.o libs/wave/src/instantiate_cpp_exprgrammar.cpp "./boost/spirit/phoenix/actor.hpp", line 345: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&) const. "./boost/ spirit/phoenix/actor.hpp", line 354: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, phoenix::B&) const. "./boost/spirit/phoenix/actor.hpp", line 354: Error: Too many args in template, from phoenix::B on ignored. "./boost/spirit /phoenix/actor.hpp", line 363: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, phoenix::B&, phoenix::C&) const. "./boost/spirit/phoenix/actor.hpp", line 363: Error: Too many args in template, from phoenix::B on ignored. "./boost/spirit /phoenix/actor.hpp", line 373: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, phoenix::B&, phoenix::C&, phoenix::D&) const. "./boost/spirit/phoenix/actor.hpp", line 373: Error: Too many args in template, from phoenix::B on ignored. "./boost/spirit /phoenix/actor.hpp", line 382: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, phoenix::B&, phoenix::C&, phoenix::D&, phoenix::E&) const. "./boost/spirit/phoenix/actor.hpp", line 382: Error: Too many args in template, from phoenix::B on ignored. "./boost/spirit /phoenix/actor.hpp", line 397: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, phoenix::B&, phoenix::C&, phoenix::D&, phoenix::E&, phoenix::F&) const. "./boost/spirit/phoenix/actor.hpp", line 397: Error: Too many args in template, from phoenix::B on ignored. "./boost/spirit /phoenix/actor.hpp", line 589: Error: Could not find a match for phoenix::actor<phoenix::BaseT>::operator()(const phoenix::unpack_tuple<phoenix::actor<phoenix::BaseT>::TupleT>&) const. -- -- Christophe Delarue mailto:christophe.delarue@gmail.com

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how to Serialize boost::Multiaray
by Alejandro Rubinos Carbajal 12 Jun '07

12 Jun '07

I want to know how can i serialize with boost::serialization a two dimensions boost::multiarray.

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