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using Boost.Interprocess with different compilers
by Dominik Holler 17 Jun '09

17 Jun '09

Hi, is it possible to communicate between multiple programs using Boost.Interprocess, if the programs are compiled with different compilers e.g. MSVS 7.1 and MinGw gcc 3.4.5 ? regards Dominik Holler

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[variant] Efficiency
by Olivier Tournaire 17 Jun '09

17 Jun '09

Hi all, I need to store in a class an object which type is within a predefined set. As I would like to avoid the overhead of virtual functions, I am wondering if variant could help me. Moreover, I would like to know what is the runtime cost of using such a type (instead of base class pointers), and the cost of the apply_visitor. Hope you could help. Regards, Olivier

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boost::serialization and PHP websites
by KessiMC 17 Jun '09

17 Jun '09

Hi everyone Currently, I'm using boost serialization for some of my configuration files (XML format). Some time ago, it became necessary to edit these files using a web interface in PHP. As I could not think of a suitable method to deserialize such an XML file to PHP (with all object references, etc.), I wrote a C++ program generating HTML code, allowing some simple configuration tasks. Even though this worked as a quick and dirty solution, I do not intend to support such a proprietary workaround for too long. Much more comfortable would it be to deserialize the XML file to PHP classes or, with JSP or ASP.NET websites, Java and C# classes. Does anyone of you know of such libraries for crossing the website/C++ line? Or should I use another serialization library? Currently, I consider the boost serialization a de-facto standard for C++ serialization issues. Thanks for any reply and best regards Pascal Kesseli -- View this message in context: http://www.nabble.com/boost%3A%3Aserialization-and-PHP-websites-tp23770268p… Sent from the Boost - Users mailing list archive at Nabble.com.

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[pool] Crash when attempting to call malloc (1.32)
by James Madison 17 Jun '09

17 Jun '09

I am experiencing a very rare crash with boost::pool, when attempting to call malloc(), using boost 1.32. Specifically: In the header: boost::object_pool<unsigned long long> m_cdPool; In the code in Thread 1: unsigned long long key* = m_cdPool.malloc(); In the code in Thread 2: random_structure->memoryPool->free(...); I am crashing on a call to simple_segregated_storage<unsigned int>::malloc() within boost, specifically in the following method, where at the end of the method ret contains an inaccessable memory address. // pre: !empty() void * malloc() { void * const ret = first; // Increment the "first" pointer to point to the next chunk first = nextof(first); return ret; } I am wondering if anyone has experienced anything similar, and knows what might be happening. Also, about threads. This is being malloced/free in two separate threads, however I sort of assumed that pool was thread safe because of discussion about using boost::thread instead of their current scheme for thread safety on another mailing list. Was my assumption wrong, i.e. pool is not thread safe? (I am a little hesitant to blame this completely on threading without searching a bit elsewhere because of the way the three threads operate, there is very little chance they are stomping over the pool, and the other threads are also all in wait states when this occurs)

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pool allocator based on element type instead of size?
by Kenny Riddile 17 Jun '09

17 Jun '09

I've found myself wanting something similar to boost::fast_pool_allocator, but with the following syntax for releasing memory: using namespace boost; std::list< T, fast_pool_allocator<T> > myList; // Note that second template parameter is T, not sizeof(T). // Basically I guess I just want a pool per type, even if // two types have the same size. singleton_pool< fast_pool_allocator_tag, T >::release_memory(); Is there a reason why this isn't doable that I should know about before I try to implement it? Has something similar already been done (even if it's from outside the Boost community) so I don't reinvent the wheel? Thanks, Kenny Riddile

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[Q] boost::spirit BOOST_FUSION_ADAPT_STRUCT error
by V S P 17 Jun '09

17 Jun '09

Hello, I am attempting to parse FuncName(arg1,arg2,... argN) with Spirit, such that args are saved in a vector and func name is saved into a funct_nm I am just in the beginning of this (I have not learned yet how to construct a grammar that allows comma delimited args within braces ) But running into a compilation error on line (std::string, funct_nm) within BOOST_FUSION_ADAPT_STRUCT I am using mini_xml1.cpp as an example Would like to ask for help/pointers to resolve it. I want to mention that my project on boost 1.38 and also includes json_spirit which uses ( I am guessing the 'classic version' of spirit). thank you in advance, Vlad --------------------------------------- #include <json_spirit.h> /* boost spirit parser specifics START */ #include <boost/config/warning_disable.hpp> #include <boost/spirit/include/qi.hpp> #include <boost/spirit/include/phoenix_core.hpp> #include <boost/spirit/include/phoenix_container.hpp> #include <boost/spirit/include/phoenix_statement.hpp> #include <boost/spirit/include/phoenix_object.hpp> #include <boost/spirit/include/phoenix_operator.hpp> #include <iostream> #include <string> #include <complex> /* boost spirit parser specifics end */ using namespace std; using namespace boost::spirit; using namespace boost::spirit::qi; using namespace boost::spirit::ascii; using namespace boost::spirit::arg_names; namespace fusion = boost::fusion; namespace phoenix = boost::phoenix; //VP do not use this namespace,it is clashes with //regular boost //using namespace boost::spirit::arg_names; /* using phoenix::at_c; using boost::phoenix::ref; using boost::phoenix::push_back; using boost::phoenix::val; using boost::phoenix::construct; */ using namespace json_spirit; struct cmdfunct_2arg; //an argument of a function typedef boost::variant< boost::recursive_wrapper<cmdfunct_2arg> , std::string > t_cmd_arg; //function with name and a list of arguments struct cmdfunct_arg { std::string funct_nm; std::vector<t_cmd_arg> args; }; // We need to tell fusion about cmdfunct struct // to make it a first-class fusion citizen //[tutorial_xml1_adapt_structures BOOST_FUSION_ADAPT_STRUCT( cmdfunct_arg, (std::string, funct_nm) (std::vector<t_cmd_arg>, args) ) -- V S P toreason(a)fastmail.fm -- http://www.fastmail.fm - Does exactly what it says on the tin

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Visual studio 2008 problem with linker or compiler (depending on release or debug version)...
by Ozgur Ozturk 16 Jun '09

16 Jun '09

Hi, I have installed boost libraries and headers using the installer from: http://www.boostpro.com/download Then in visual studio I create an empty c++ project and added the chat_server.cpp and chat_message.hpp code from http://www.boost.org/doc/libs/1_39_0/doc/html/boost_asio/examples.html (I wish there was a code download link by the way, I struggled some because of some characters introduced in copy paste) Then I added "C:\Program Files\boost\boost_1_38" to include directories and "C:\Program Files\boost\boost_1_38\lib" to additional library directories (similar to description in the last two sections of this tutorial: http://blog.emptycrate.com/node/421 , but without property sheets, only on project properties.) Now the errors. If I try to build a release version it says: .\chat_server.cpp(17) : fatal error C1083: Cannot open include file: 'boost/bind.hpp': No such file or directory but If I try to build a debug version it says: LINK : fatal error LNK1104: cannot open file 'libboost_system-vc90-mt-gd-1_38.lib' I have a 'libboost_system-vc90-mt-*s*gd-1_38.lib' not 'libboost_system-vc90-mt-gd-1_38.lib' in my lib folder... Thanks in advance, Ozgur (Oscar) Ozturk www.DrOzgur.com +1 (614) 805-4370

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Problem with boost::bind usage
by Zachary Turner 16 Jun '09

16 Jun '09

Is there a technical limitation preventing this from working? int __stdcall VirtualUnlock(void*, size_t); void f() { std::list<void*> locked_buffers; size_t size; std::for_each(locked_buffers.begin(), locked_buffers.end(), boost::bind(VirtualUnlock, boost::lambda::_1, size)); } Irrelevant code snipped for brevity. I get the error It complains about how it can't find F::result_type in bind_template.hpp line 15, with F = int (__stdcall*)(void*, size_t) If I change it to int __stdcall VirtualUnlock(void*, size_t); void f() { std::list<void*> locked_buffers; size_t size; std::for_each(locked_buffers.begin(), locked_buffers.end(), boost::bind(boost::function<int(void*,size_t)>(VirtualUnlock), boost::lambda::_1, size)); } it works, but this is much uglier and I'd rather avoid it.

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lambda::throw_exception fails
by KessiMC 16 Jun '09

16 Jun '09

Hi everyone Be it that this code is working: try { throw InterfaceTimeoutException(); } catch (const std::exception &ex) { cout << ex.what() << endl; } However, trying this: try { lambda::throw_exception(constructor<InterfaceTimeoutException> ())(); } catch (const std::exception &ex) { cout << ex.what() << endl; } ends up with my programm crashing (Exit code 3). What am I missing here? Thanks for any reply and best regards Pascal -- View this message in context: http://www.nabble.com/lambda%3A%3Athrow_exception-fails-tp24063172p24063172… Sent from the Boost - Users mailing list archive at Nabble.com.

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Problem using boost::asio::ip::address::from_string
by Matheus Araújo Aguiar 16 Jun '09

16 Jun '09

Hello boost-users, I'm using boost::asio::ip::address in a client-server application and i'm having a strange behaviour when using the member method *from_string*. The method isn't working correctly(or doing any work at all), since after calling it, nothing changes. Bellow there's a code that reproduces the problem. #include <boost/asio.hpp> #include <iostream> int main() { char ip[15]; printf("type ip please\n"); std::cin >> ip; boost::asio::ip::address a; printf("address1 before member method is called %s\n", a.to_string().data()); a.from_string(ip); boost::asio::ip::address b(a); printf("address1 %s from string %s\n", a.to_string().data(), ip); printf("address2 %s from address1 %s\n", b.to_string().data(), a.to_string().data()); return 0; } Can anyone see what is possibly wrong with the code? Thanx in advance! -- Matheus Araújo Aguiar Computer Scientist matheus.pit(a)gmail.com

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Memory manager/allocator
by Daniele Barzotti 16 Jun '09

16 Jun '09

Hi, I'm sorry if the question goes in OT. I'm searching for a simple cross platform memory manager/allocator library/class to simply allocate/read/write blocks of memory. I googled around and I found some projects: http://code.google.com/p/stdext/ http://memory-mgr.sourceforge.net/ there is also boost.interprocess but I don't need its complexity. I'd like to know if there is a well-known and used one. Thanks in advance. Daniele.

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[BGL] List of edges as property type
by caligulaemperorofrome＠yahoo.com 16 Jun '09

16 Jun '09

I'm trying to add a "list of edges" as an edge property type like so. typedef adjacency_list < listS, vecS, directedS > Traits; typedef adjacency_list < listS, vecS, directedS, vertex_properties, property < edge_list_t, std::list<Traits::edge_descriptor>, edge_properties > > > graph_t; But the compiler says : error: ‘edge_list_t’ was not declared in this scope So I think I need to add edge_list_t to the set of property tags. I think there is a method like BOOST_INSTALL PROPERTY ( edge_list_t ). But I think I read somewhere that thats the old way. Can someone tell me the new way to do it? PS: How can I tell which version of boost I am using? Thanks - Caligula

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[Lambda] Compiler dependent error, can anyone explain?
by Robert Jones 15 Jun '09

15 Jun '09

Hi Peeps I have this cut down code example #include <vector> #include <map> #include <algorithm> #include <boost/shared_ptr.hpp> #include <boost/lambda/lambda.hpp> #include <boost/lambda/bind.hpp> template < typename Iter, typename Pred > bool any_of_if( Iter first, Iter last, Pred pred ) { return std :: find_if( first, last, pred ) != last; } struct A { }; bool fnOfA( const A & ); typedef std :: vector< boost :: shared_ptr< A > > VecOfPtr; typedef std :: map< int, VecOfPtr > MapOfVecOfPtr; bool contains_if( const VecOfPtr &, bool ( * pred )( const VecOfPtr :: value_type :: value_type &) ); bool f( const boost :: shared_ptr< MapOfVecOfPtr > & myMap ) { using namespace boost; return any_of_if( myMap -> begin( ), myMap -> end( ), lambda :: bind( contains_if, lambda :: bind( & MapOfVecOfPtr :: value_type :: second, lambda :: _1 ), fnOfA ) ); } This compiles under gcc (3.4.4), but under Vis Studio 2008 gives a huge error message, (attached), but summarised as boost\boost/tuple/detail/tuple_basic.hpp(439) : error C2664: 'boost::tuples::detail::non_storeable_type<T>::non_storeable_type(const boost::tuples::detail::non_storeable_type<T> &)' : cannot convert parameter 1 from 'bool (__cdecl &)(const A &)' to 'const boost::tuples::detail::non_storeable_type<T> &' It also goes away if I introduce a temporary local variable for fnOfA. Is this a know bug in VisStudio or Boost, possibly with a known solution? Thanks, - Rob.

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[BGL] destroying a subgraph
by fabricio 15 Jun '09

15 Jun '09

Hi all, I have a vector of subgraphs and at certain situations I have to remove some vertex from one of them. As this is not possible for now, I simply create a temporary subgraph with the vertices I want and replace the old one. The problem is that the memory allocated from the old one is not freed correctly. What should be the correct procedure to do so?? a code snippet: void modgraph::remove_a_vertex(unsigned idx, Vertex vt) { Graph* temp_subg = &g.create_subgraph(); graph_traits < Graph >::vertex_iterator itg, end; for (tie(itg,end) = vertices(*subg(idx)); itg != end; ++itg) { if( (*subg(idx)).local_to_global(*itg) != vt ) { add_vertex(*itg, *temp_subg); } } *subg(idx) = *temp_subg; } where subg is a vector of subgraphs.

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Re: [Boost-users] [mpi] irecv / send problem
by Brian Wood 15 Jun '09

15 Jun '09

Nick Collier writes: > Hmm, I think it should work. Thanks though. The example I posted was > modified from: > http://ci-tutor.ncsa.illinois.edu/content.php?cid=1137 > Namely, > /* deadlock avoided */ > #include <stdio.h> > #include <mpi.h> > void main (int argc, char **argv) { > int myrank; > MPI_Request request; > MPI_Status status; > double a[100], b[100]; > MPI_Init(&argc, &argv); /* Initialize MPI */ > MPI_Comm_rank(MPI_COMM_WORLD, &myrank); /* Get rank */ > if( myrank == 0 ) { > /* Post a receive, send a message, then wait */ > MPI_Irecv( b, 100, MPI_DOUBLE, 1, 19, MPI_COMM_WORLD, &request ); > MPI_Send( a, 100, MPI_DOUBLE, 1, 17, MPI_COMM_WORLD ); > MPI_Wait( &request, &status ); > } > else if( myrank == 1 ) { > /* Post a receive, send a message, then wait */ > MPI_Irecv( b, 100, MPI_DOUBLE, 0, 17, MPI_COMM_WORLD, &request ); > MPI_Send( a, 100, MPI_DOUBLE, 0, 19, MPI_COMM_WORLD ); > MPI_Wait( &request, &status ); > } > MPI_Finalize(); /* Terminate MPI */ > } > I am not sure why MPI was added to Boost. Recently there was an effort to get Boost libs ready for the next C++ standard. I don't think the MPI library was considered in that as it's ties to C are so strong. Having to specify MPI_DOUBLE above when a and b are both declared of type double is sad. Naming it "Message Passing Interface" when you are restricted to messages of a single type is hardly an apt name. If it's going to be in Boost, it may wind up being called the Most Pitiful Interface. -- Brian Wood Ebenezer Enterprises www.webEbenezer.net "The New Deal and Great Society entrenched a welfare mentality in [the US]. The idea of the federal government as the great provider has even moved to the level of corporate America, with business 'leaders' flying to Washington in private jets to beg Congress for handouts to keep their companies afloat." Bill Ragle

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Re: [Boost-users] [ptr_container] Const & non-const ptr_map iteration over mapped values
by Rodolfo Federico Gamarra 15 Jun '09

15 Jun '09

Hi Thorsten, Thanks a lot for your reply. > I would just implement this as (abbreviated) > > template< class R > > struct X > { > template< class Pair > > R operator()( const Pair& p ) const { return *p.second; } > }; umm ... yep, you're right: the T1 and T2 types weren't used in my original alternative. Your struct X needs, tough, the result_type nested typedef (maybe that's why you said "abbreviated"). > Well, why do you want to define that typedef, when it is easier to infer > the type automatically? Yep, it's easier and shorter; but this came so as to to fulfill C++ standard requirements over an "unary function" (as of my understanding). Nevertheless, it seems that (at least in this case) Boost's requirements are weaker, without requiring this other nested typedef. > Why? Dont map::value_type v = *m.find(x) work? Well, yes: at first, this came as a result of the last point: it the arg_type has to be provided (if it has...), then a function template is a no-go alternative. So, an specifically typed function has to be defined: what's the arg_type? The "detail" type shouldn't be used one, and a std::pair didn't work due to the lack of implicit conversion. Then I saw the other nested template typedefs (const_reference and reference). But the question of the to std::pair remainded: does it help with interoperability with code that worked on maps that used the standard std::pair? Is it free to provide it, or there's some impossibility? > Again, why do you want to do this? For the aforementioned reasons, but as you pointed that template parameter wasn't actually needed. Anyway, seemed reasonable to have it provided by ptr_map. Thanks a lot again. Cheers. Rodolfo.

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[lambda] warnings from Lambda
by Robert Jones 15 Jun '09

15 Jun '09

I'm finding that pretty much every lambda :: bind call I make is producing a c4180 warning under Microsoft which I think is warning about the application a meaningless qualifier to the first argument of the bind call. So given, say bool f( int ); lambda::bind( f, lambd::_1 ); inside lambda_traits a const qualifier is applied to f, which is already const, hence the warning. Anyone know how to avoid this, other than #pragma to disable the warning? Thanks, - Rob.

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Copy a smart pointer into allocated memory
by Tiago Alves 15 Jun '09

15 Jun '09

Hi, and sorry for the probable newbieness of this question! I want to put weak_ptr into a piece of memory previously allocated. this is my code: // construct a weak_ptr from a share_ptr boost::weak_ptr<Obj>* cameraPtr = new boost::weak_ptr<Obj>(obj_share_ptr); // lua_newuserdata allocs memory and returns a pointer to it, just like malloc. boost::weak_ptr<Obj>* camera = static_cast<boost::weak_ptr<Obj>*>(lua_newuserdata(pLuaState,sizeof(boost::weak_ptr<Obj>))); Now i want camera to be a weak_ptr of ObjPtr. I tried different ways to do this, such as *camera = boost::weak_ptr<Obj>(obj_share_ptr); or camera->swap(*cameraPtr); or *camera = *cameraPtr; I think none of these work because in fact they all do a swap() between camera and cameraPtr. Since camera is just an malloc, it will try to swap dirty memory and segfault sometimes (yes, sometimes this worked). Out of desperation, i did this: memcpy(camera,cameraPtr,sizeof(boost::weak_ptr<Obj>)); Which seems to work but it stinks. It's copying an object with memcpy instead of using its constructor. Is there a better way to do this? Thanks, Tiago Alves

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[BGL] Searching for index_map
by caligulaemperorofrome＠yahoo.com 15 Jun '09

15 Jun '09

When I run my program the output gives an id to each edge and vertex like so. <edge id="e262" source="n46" target="n43"> This must be the index. So how can I access this index? When I put the following in my code it fails to compile. error: ‘index_map’ was not declared in this scope for (tie(edge_iter, edges_end) = edges(g); edge_iter != edges_end; ++edge_iter) { get(index_map, *edge_iter, g); } Do I need "get_property(index_map) or something? My Graph declaration is as follows. typedef adjacency_list < listS, vecS, directedS >::edge_descriptor edge_t; typedef adjacency_list < listS, vecS, directedS >::vertex_descriptor vertex_t; typedef adjacency_list < listS, vecS, directedS, property< vertex_predecessor_t, vertex_t, vertex_properties >, property< edge_reverse_t, edge_t, edge_properties > > graph_t; Thanks

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[BGL] destroying a subgraph
by "Christian Bähnisch" 15 Jun '09

15 Jun '09

Hello, I'm trying to implement the IncidenceGraph concept for an non-BGL undirected graph like datastructure. Following the boost documentation the target function used with edges from out_edges(u,g) must give vertices != u. Can somebody please explain me why this requirement is in BGL! I think it can make the adaption very difficult as it requieres to artificially orientate undirected edges for each call to out_edges. Any help would be much appreciated! Thanks in advance, Chris -- GMX FreeDSL Komplettanschluss mit DSL 6.000 Flatrate und Telefonanschluss für nur 17,95 Euro/mtl.!* http://portal.gmx.net/de/go/dsl02

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[ptr_container] Const & non-const ptr_map iteration over mapped values.
by Rodolfo Federico Gamarra 15 Jun '09

15 Jun '09

Hi all!! In my class have an internal member of type typedef boost::ptr_map<int, Component> InternalComponentCollection; I'd like to provide const and non-const iterators, through appropriate two pairs of begin / end methods, in order to have "const Component&" and "Component&" as return type in each of the dereferencing operators. What's the way to do that? What I tried: Since the underlying storage relies in "pair" with a pointer, I thought of using a transform iterator to project "second" and then dereference the pointer; something like, for instance, ComponentIterator Begin() { return boost::make_transform_iterator(fComponents.begin(), fResolver); } where fResolver is an instance of template<class T1, class T2, class R> struct SecondResolver { typedef R result_type; template< template <typename,typename> class Pair> result_type operator()(const Pair<T1, const T2>& p) const { return * p.second; } }; and having typedef SecondResolver<KeyType, MappedType, MappedReference> ComponentResolver; typedef typename InternalComponentCollection::key_type KeyType; typedef typename InternalComponentCollection::mapped_type MappedType; typedef typename InternalComponentCollection::mapped_reference MappedReference; typedef typename InternalComponentCollection::iterator PairIterator; typedef boost::transform_iterator<ComponentResolver, PairIterator> ComponentIterator; The case for const iteration is similarly implemented, using the following typedefs: typedef SecondResolver<KeyType, ConstMappedType, ConstMappedReference> ConstComponentResolver; typedef const Component* /* No nested typedef for this...*/ ConstMappedType; typedef typename InternalComponentCollection::const_mapped_reference ConstMappedReference; typedef typename InternalComponentCollection::const_iterato PairConstIterator; typedef boost::transform_iterator<ConstComponentResolver, PairConstIterator> ComponentConstIterator; My remarks about my solution are: 1) SecondResolver is not an "UnaryFunction" in the sense of the C++ standard, since there's no "argument_type" nested typedef. Tough it seems that that isn't actually required by transform_iterator. I have problems in trying to define that typedef (see 2). 2) The actual pairs are instances of boost::ptr_container_detail::ref_pair so it wouldn't be right to typedef that as arg type (it's a "detail"). This class provides implicit conversion from std::pair, but no implicit conversion to std::pair. So that's why I wrote the operator() as a template function, since cannot give the operator an explicit type: nor ref_pair (being a detail), nor std::pair (not having the conversion). Should that conversion be provided? 3) I wrote ConstMappedType typedef explicitly, without relying in a nested typedef in the original class. Doing typedef const MappedType ConstMappedType; doesn't work because the const binds to the pointer, not to the pointed type. Other possibility I looked was to have instead (for the const case, the other one is similar): typedef typename InternalComponentCollection::const_reference ConstReference; typedef SecondResolver2<ConstMappedReference, ConstReference> ConstComponentResolver; template<class RetType, class ArgType> struct SecondResolver2 { typedef RetType result_type; typedef ArgType argument_type; result_type operator()(argument_type p) const { return * p.second; } }; Anyone is better? Thanks a lot in advance. -- Rodolfo Federico Gamarra

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Unresolved symbols
by Robert Dailey 15 Jun '09

15 Jun '09

Hi everyone, I'm using Boost 1.39, and I'm getting the following linker errors on MSVC9: MainWindow.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (__imp_?get_system_category@system @boost@@YAABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'system_category''(void)" (??__Esystem_category@system@boost@@YAXXZ) OverlayViewModel.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (__imp_?get_system_category@system @boost@@YAABVerror_category@12@XZ) OverlayNode.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_system_category(void)" (__imp_?get_system_category@system @boost@@YAABVerror_category@12@XZ) MainWindow.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)" (__imp_?get_generic_category@system@boost@@YAABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'generic_category''(void)" (??__Egeneric_category@system@boost@@YAXXZ) OverlayViewModel.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)" (__imp_?get_generic_category@system@boost@@YAABVerror_category@12@XZ) OverlayNode.obj : error LNK2001: unresolved external symbol "__declspec(dllimport) class boost::system::error_category const & __cdecl boost::system::get_generic_category(void)" (__imp_?get_generic_category@system@boost@@YAABVerror_category@12@XZ) The issues above don't really make any sense. The calling convention, according to the information above, is __cdecl, and in my project settings I'm using cdecl as well. I found several posts about this on the mailing list but no solutions were offered that I could see. How can I resolve these issues? Note that I am using static libraries.

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[bjam] Building Regex with static runtime linking
by Max 15 Jun '09

15 Jun '09

Hello, I want my program to be statically linked to runtime libs, which is using Boost.Regex. I'm using the following command: bjam --toolset=msvc-9.0 --builddir=./ --address-model=32 --link=static --runtime-link=static --threading=multi stage --build-type=complete --with-regex But I get the following error message: error: link=shared together with runtime-link=static is not allowed error: such property combination is either impossible error: or too dangerious to be of any use IMO, the option specified by "--link=static " is overlooked by bjam. What's the problem? Thanks for any information. B/Rgds Max

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[serialization] problems extending existing archive type
by Kenny Riddile 14 Jun '09

14 Jun '09

I recently revisited a problem I was having trouble solving awhile ago, and I'm still having issues. I wish to create a new archive type that is simply an extension of xml_iarchive that takes an additional construction parameter and then be able to retrieve that value from the archive later. This new archive type is part of a static library. See attached Archive.hpp/cpp for my most recent attempt. I should also mention that BOOST_ALL_DYN_LINK is globally defined in my environment. This is the cause of the errors in output1.txt. After looking at archive/detail/decl.hpp, I was able to get my static library to compile by defining BOOST_ARCHIVE_SOURCE while compiling the static library. I then get the linker errors in output2.txt when trying to use the new archive type from an executable. I'm sure I'm just missing something simple, but I need some hand-holding here because I've been at this awhile. Thanks, Kenny Riddile #ifndef RS_REPOSITORY_ARCHIVE_HPP #define RS_REPOSITORY_ARCHIVE_HPP #include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <rs/repository/RepositoryFwd.hpp> namespace rs { class InputArchive : public boost::archive::xml_iarchive_impl<InputArchive> , public boost::archive::detail::shared_ptr_helper { public: InputArchive( std::istream& is ); InputArchive( std::istream& is, Repository& repository ); Repository* GetRepository() const; template<class T> void load( T& t ) { boost::archive::xml_iarchive_impl<InputArchive>::load( t ); } private: friend class boost::archive::xml_iarchive_impl<InputArchive>; friend class boost::archive::basic_xml_iarchive<InputArchive>; friend class boost::archive::load_access; Repository* m_repository; }; typedef boost::archive::xml_oarchive OutputArchive; } // end namespace rs #endif // RS_REPOSITORY_ARCHIVE_HPP #include <rs/repository/Archive.hpp> #include <rs/repository/Repository.hpp> namespace rs { InputArchive::InputArchive( std::istream& is ) : boost::archive::xml_iarchive_impl<InputArchive>( is, 0 ) , m_repository( 0 ) { } InputArchive::InputArchive( std::istream& is, Repository& repository ) : boost::archive::xml_iarchive_impl<InputArchive>( is, 0 ) , m_repository( &repository ) { } Repository* InputArchive::GetRepository() const { return m_repository; } } // end namespace rs BOOST_SERIALIZATION_REGISTER_ARCHIVE( rs::InputArchive ) #include <boost/archive/impl/basic_xml_iarchive.ipp> #include <boost/archive/impl/xml_iarchive_impl.ipp> namespace boost { namespace archive { template class basic_xml_iarchive<rs::InputArchive>; template class xml_iarchive_impl<rs::InputArchive>; } // end namespace archive } // end namespace boost #define BOOST_ARCHIVE_CUSTOM_IARCHIVE_TYPES rs::InputArchive 1>------ Build started: Project: repository, Configuration: Debug Win32 ------ 1>Compiling... 1>Archive.cpp 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(41) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_start' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(74) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_end' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(80) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_override' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(86) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_override' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(92) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_override' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(98) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::load_override' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(105) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::basic_xml_iarchive' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/basic_xml_iarchive.ipp(108) : error C2491: 'boost::archive::basic_xml_iarchive<Archive>::~basic_xml_iarchive' : definition of dllimport function not allowed 1>Warning: This header is deprecated. Please use: boost/spirit/include/classic_rule.hpp 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(83) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::load' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(114) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::load' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(127) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::load' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(140) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::load' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(153) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::load_override' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(160) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::init' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(187) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::xml_iarchive_impl' : definition of dllimport function not allowed 1>C:\Documents and Settings\Administrator\My Documents\Development\development\third_party\boost\1_38_0\boost/archive/impl/xml_iarchive_impl.ipp(200) : error C2491: 'boost::archive::xml_iarchive_impl<Archive>::~xml_iarchive_impl' : definition of dllimport function not allowed 1>BinaryResourceWrapper.cpp 1>ArchiveWrapper.cpp 1>ResourceFileHandle.cpp 1>Repository.cpp 1>BinaryResource.cpp 1>Generating Code... 1>Build log was saved at "file://c:\Documents and Settings\Administrator\My Documents\Development\development\build\components\libs\repository\repository.dir\Debug\BuildLog.htm" 1>repository - 16 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 1 up-to-date, 0 skipped ========== 1>------ Build started: Project: repository_test_repository, Configuration: Debug Win32 ------ 1>Linking... 1>repository.lib(Repository.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_iserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_iserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1>repository.lib(Repository.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_oserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_oserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1>repository.lib(ArchiveWrapper.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_iserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_iserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1>repository.lib(ArchiveWrapper.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_oserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_oserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1>repository.lib(Archive.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_iserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_iserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1>repository.lib(Archive.obj) : error LNK2005: "public: bool __thiscall boost::archive::detail::basic_oserializer::serialized_as_pointer(void)const " (?serialized_as_pointer@basic_oserializer@detail@archive@boost@@QBE_NXZ) already defined in boost_serialization-mt-gd.lib(boost_serialization-mt-gd.dll) 1> Creating library C:\Documents and Settings\Administrator\My Documents\Development\development\build\bin\Debug\repository_test_repository.lib and object C:\Documents and Settings\Administrator\My Documents\Development\development\build\bin\Debug\repository_test_repository.exp 1>repository.obj : warning LNK4217: locally defined symbol ?load_end@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXPBD@Z (protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_end(char const *)) imported in function "protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_override<class TestResource>(struct boost::serialization::nvp<class TestResource> const &,int)" (??$load_override@VTestResource@@@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXABU?$nvp@VTestResource@@@serialization@2@H@Z) 1>repository.obj : warning LNK4217: locally defined symbol ?load_start@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXPBD@Z (protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_start(char const *)) imported in function "protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_override<class TestResource>(struct boost::serialization::nvp<class TestResource> const &,int)" (??$load_override@VTestResource@@@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXABU?$nvp@VTestResource@@@serialization@2@H@Z) 1>repository.obj : warning LNK4217: locally defined symbol ??1?$xml_iarchive_impl@VInputArchive@rs@@@archive@boost@@IAE@XZ (protected: __thiscall boost::archive::xml_iarchive_impl<class rs::InputArchive>::~xml_iarchive_impl<class rs::InputArchive>(void)) imported in function "public: __thiscall rs::InputArchive::~InputArchive(void)" (??1InputArchive@rs@@QAE@XZ) 1>repository.obj : warning LNK4217: locally defined symbol ?load@?$xml_iarchive_impl@VInputArchive@rs@@@archive@boost@@IAEXAAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z (protected: void __thiscall boost::archive::xml_iarchive_impl<class rs::InputArchive>::load(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)) imported in function "public: void __thiscall rs::InputArchive::load<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > >(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)" (??$load@V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@InputArchive@rs@@QAEXAAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: __thiscall boost::archive::basic_xml_grammar<char>::basic_xml_grammar<char>(void)" (??0?$basic_xml_grammar@D@archive@boost@@QAE@XZ) referenced in function "protected: __thiscall boost::archive::xml_iarchive_impl<class boost::archive::naked_xml_iarchive>::xml_iarchive_impl<class boost::archive::naked_xml_iarchive>(class std::basic_istream<char,struct std::char_traits<char> > &,unsigned int)" (??0?$xml_iarchive_impl@Vnaked_xml_iarchive@archive@boost@@@archive@boost@@IAE@AAV?$basic_istream@DU?$char_traits@D@std@@@std@@I@Z) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: void __thiscall boost::archive::basic_xml_grammar<char>::windup(class std::basic_istream<char,struct std::char_traits<char> > &)" (?windup@?$basic_xml_grammar@D@archive@boost@@QAEXAAV?$basic_istream@DU?$char_traits@D@std@@@std@@@Z) referenced in function "protected: __thiscall boost::archive::xml_iarchive_impl<class boost::archive::naked_xml_iarchive>::~xml_iarchive_impl<class boost::archive::naked_xml_iarchive>(void)" (??1?$xml_iarchive_impl@Vnaked_xml_iarchive@archive@boost@@@archive@boost@@IAE@XZ) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: bool __thiscall boost::archive::basic_xml_grammar<char>::parse_start_tag(class std::basic_istream<char,struct std::char_traits<char> > &)" (?parse_start_tag@?$basic_xml_grammar@D@archive@boost@@QAE_NAAV?$basic_istream@DU?$char_traits@D@std@@@std@@@Z) referenced in function "protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_start(char const *)" (?load_start@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXPBD@Z) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: bool __thiscall boost::archive::basic_xml_grammar<char>::parse_end_tag(class std::basic_istream<char,struct std::char_traits<char> > &)const " (?parse_end_tag@?$basic_xml_grammar@D@archive@boost@@QBE_NAAV?$basic_istream@DU?$char_traits@D@std@@@std@@@Z) referenced in function "protected: void __thiscall boost::archive::basic_xml_iarchive<class rs::InputArchive>::load_end(char const *)" (?load_end@?$basic_xml_iarchive@VInputArchive@rs@@@archive@boost@@IAEXPBD@Z) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: bool __thiscall boost::archive::basic_xml_grammar<char>::parse_string(class std::basic_istream<char,struct std::char_traits<char> > &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > &)" (?parse_string@?$basic_xml_grammar@D@archive@boost@@QAE_NAAV?$basic_istream@DU?$char_traits@D@std@@@std@@AAV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@5@@Z) referenced in function "protected: void __thiscall boost::archive::xml_iarchive_impl<class rs::InputArchive>::load(class std::basic_string<wchar_t,struct std::char_traits<wchar_t>,class std::allocator<wchar_t> > &)" (?load@?$xml_iarchive_impl@VInputArchive@rs@@@archive@boost@@IAEXAAV?$basic_string@_WU?$char_traits@_W@std@@V?$allocator@_W@2@@std@@@Z) 1>repository.lib(Archive.obj) : error LNK2019: unresolved external symbol "public: void __thiscall boost::archive::basic_xml_grammar<char>::init(class std::basic_istream<char,struct std::char_traits<char> > &)" (?init@?$basic_xml_grammar@D@archive@boost@@QAEXAAV?$basic_istream@DU?$char_traits@D@std@@@std@@@Z) referenced in function "protected: void __thiscall boost::archive::xml_iarchive_impl<class rs::InputArchive>::init(void)" (?init@?$xml_iarchive_impl@VInputArchive@rs@@@archive@boost@@IAEXXZ) 1>C:\Documents and Settings\Administrator\My Documents\Development\development\build\bin\Debug\repository_test_repository.exe : fatal error LNK1120: 6 unresolved externals 1>Build log was saved at "file://c:\Documents and Settings\Administrator\My Documents\Development\development\build\components\libs\repository\repository_test_repository.dir\Debug\BuildLog.htm" 1>repository_test_repository - 13 error(s), 4 warning(s) ========== Build: 0 succeeded, 1 failed, 4 up-to-date, 0 skipped ==========

2 2

[shared_ptr] Member functions as deallocators
by Michael Crawford 14 Jun '09

14 Jun '09

I'm using shared_ptr to hold a SceneManager object. In this particular case, I don't actually want the shared_ptr to have ownership of the SceneManager, but rather take advantage of it to insure that the SceneManager it holds is cleared when the containing object (a game's state) is destroyed. The deallocator needs to call SceneManager::clearScene, but it needs to call it on the held object, so the deallocator call would be essentially (pointer held in shared_ptr)->clearScene( ); Can anyone give me some guidance on how to accomplish this? Thanks, MBC

6 8

multi-thread server with boost::asio or boost::thread?
by Matheus Araújo Aguiar 14 Jun '09

14 Jun '09

Hello boost users, I'm currently working on a MMO game server and have been using the boost::asio to deal with sockets. For now i'm concerned with responsiveness and scalability, and have been thinking of two ways to achieve that. The first way would be multiple calls to io_service.run, each in a different thread, using the strand object to synchronize the callback handlers. The other way is to explicit use threads and locks with the boost::thread lib. So could you point me what would be the main differences (maybe advantages and disadvantages) between both ways? What way do you think is it better? I want to hear some opinions. Thanx in advance and best regards! -- Matheus Araújo Aguiar Computer Scientist matheus.pit(a)gmail.com

2 3

Re: [Boost-users] Does Boost.Test support std::wstring log
by Tan, Tom (Shanghai) 14 Jun '09

14 Jun '09

>> Is it possible to use Boost.Test macros with std::wstring directly like >> this: >> BOOST_TEST_MESSAGE(L"test log"); ? >Boost.Test internally uses std::ostream. So if you want above to work >you'll need to supply appropriate output method. > >Proper wide string support is not implemented yet. > >Gennadiy Thanks for the answer, Gennadiy. While I could wrap it with another layer, it'll be great if it's a built-in feature, so that I won't copy some additional code around while using boost.test, esp. that these days I started every little project with these 2 lines: #define BOOST_TEST_MODULE my #include <boost/test/unit_test.hpp> Is this decision out of convenience or any implementation obstacle. Specifically, what would be the problems if std::basic_ostream<Ch> is used instead?

2 1

[Spirit] seeking help with AST tree generation
by Slawomir Lisznianski 14 Jun '09

14 Jun '09

Hello, Using Boost Spirit, is it possible to write a grammar that, out of the box, generates the AST tree according to cases below: Case 1: ======= Input: 1 < 2 AND 3 < 4 OR 5 < 6 Resulting tree: OR / \ AND 5 < 6 / \ 1 < 2 3 < 4 Case 2: ======= Input: 1 < 2 AND (3 < 4 OR 5 < 6) Resulting tree: AND / \ 1 < 2 OR / \ 3 < 4 5 < 6 In other words, I want to honor the parenthesis for expression grouping. How would you recommend doing it? Thank you, Slaw

3 2

ASIO iostreams example -- help?
by Dave Steffen 14 Jun '09

14 Jun '09

Hi Folks, I'm just getting into ASIO, and am having problems with the examples. I'm trying out both the tcp::iostream examples and the (more basic?) synchronous TCP daytime clients in the tutorial. I have the server print the socket endpoint, which produces: 0.0.0.0:23421 (23421 being a randomly typed socket number, once I figured out that the '13' in the examples doesn't work because Linux reserves socket numbers up to 1024 for the kernel). I then run the client, providing 0.0.0.0:23421 on the commandline as the address to connect to. I get this: Host not found (authoritative) Does anyone know what that means? I know very little (read:nothing) about the tcp protocol, which is probably the real problem. :-) Thanks -- Dave Steffen Numerica Corporation (www.numerica.us <http://www.numerica.us/> ) 4850 Hahns Peak Drive, Suite 200 Loveland, Colorado 80538 main (970) 461-2000 direct (970) 461-2422 x227 fax (970) 461-2004 Email: dave.steffen(a)numerica.us

3 2

Simple question about boost::random
by Zachary Turner 13 Jun '09

13 Jun '09

I think I'm overlooking something very simple, but I'm trying to generate random numbers that are uniform over the open range of various data types. So I wrote this code: template<typename T> struct rand_type_range { typedef boost::numeric::bounds<T> bounds; static T generate() { static boost::uniform_int<T> range(bounds::lowest()+1, bounds::highest()-1); static boost::variate_generator<boost::minstd_rand&, boost::uniform_int<T> > generate(rng, range); return generate(); } }; Using this with anything other than a boost::uint32_t gives lots of warnings, although the results turn out correct. Looking at the warnings it seems the infrastructure is still trying to use boost::uint32_t's for everything, so am I missing something simple? 1>Q:\include\boost\1.39.0\boost/random/uniform_int.hpp(135) : warning C4244: '+=' : conversion from 'unsigned long' to 'unsigned short', possible loss of data 1> Q:\include\boost\1.39.0\boost/random/uniform_int.hpp(64) : see reference to function template instantiation 'unsigned short boost::uniform_int<IntType>::generate<Engine>(Engine &,unsigned short,unsigned short,unsigned short)' being compiled 1> with 1> [ 1> IntType=boost::uint16_t, 1> Engine=boost::random::detail::pass_through_engine<boost::random::detail::pass_through_engine<boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> >> 1> ] 1> Q:\include\boost\1.39.0\boost/random/variate_generator.hpp(100) : see reference to function template instantiation 'unsigned short boost::uniform_int<IntType>::operator ()<boost::random::detail::pass_through_engine<UniformRandomNumberGenerator>>(Engine &)' being compiled 1> with 1> [ 1> IntType=boost::uint16_t, 1> UniformRandomNumberGenerator=boost::random::detail::pass_through_engine<boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> >, 1> Engine=boost::random::detail::pass_through_engine<boost::random::detail::pass_through_engine<boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> >> 1> ] 1> Q:\include\boost\1.39.0\boost/random/variate_generator.hpp(100) : while compiling class template member function 'unsigned short boost::variate_generator<Engine,Distribution>::operator ()(void)' 1> with 1> [ 1> Engine=boost::minstd_rand &, 1> Distribution=boost::uniform_int<boost::uint16_t> 1> ] 1> c:\dev\agent\windows\tests\bit_search.hpp(54) : see reference to class template instantiation 'boost::variate_generator<Engine,Distribution>' being compiled 1> with 1> [ 1> Engine=boost::minstd_rand &, 1> Distribution=boost::uniform_int<boost::uint16_t> 1> ] 1> c:\dev\agent\windows\tests\bit_search.hpp(52) : while compiling class template member function 'boost::uint16_t rand_type_value<T>::generate(void)' 1> with 1> [ 1> T=boost::uint16_t 1> ] 1> c:\dev\agent\windows\tests\bit_search.hpp(62) : see reference to class template instantiation 'rand_type_value<T>' being compiled 1> with 1> [ 1> T=boost::uint16_t 1> ] 1>Q:\include\boost\1.39.0\boost/random/detail/signed_unsigned_tools.hpp(64) : warning C4244: 'return' : conversion from 'base_unsigned' to 'unsigned short', possible loss of data 1> Q:\include\boost\1.39.0\boost/random/detail/signed_unsigned_tools.hpp(64) : while compiling class template member function 'unsigned short boost::random::detail::add<T1,T2>::operator ()(T1,T2)' 1> with 1> [ 1> T1=base_unsigned, 1> T2=unsigned short 1> ] 1> Q:\include\boost\1.39.0\boost/random/uniform_int.hpp(116) : see reference to class template instantiation 'boost::random::detail::add<T1,T2>' being compiled 1> with 1> [ 1> T1=base_unsigned, 1> T2=unsigned short 1> ] 1> Q:\include\boost\1.39.0\boost/random/uniform_int.hpp(64) : see reference to function template instantiation 'unsigned short boost::uniform_int<IntType>::generate<Engine>(Engine &,unsigned short,unsigned short,unsigned short)' being compiled 1> with 1> [ 1> IntType=boost::uint16_t, 1> Engine=boost::random::detail::pass_through_engine<boost::random::detail::pass_through_engine<boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> >> 1> ] 1>Q:\include\boost\1.39.0\boost/random/uniform_smallint.hpp(79) : warning C4244: 'return' : conversion from 'long' to 'unsigned short', possible loss of data 1> Q:\include\boost\1.39.0\boost/random/uniform_int.hpp(150) : see reference to function template instantiation 'unsigned short boost::uniform_smallint<IntType>::operator ()<Engine>(Engine &)' being compiled 1> with 1> [ 1> IntType=unsigned short, 1> Engine=boost::random::detail::pass_through_engine<boost::random::detail::pass_through_engine<boost::random::linear_congruential<boost::int32_t,48271,0,2147483647,399268537> >> 1> ] 1>Linking... 1>LINK : c:\dev\agent\windows\tests\debug-winxp\Win32\bin\tests.exe not found or not built by the last incremental link; performing full link

2 1

unique_ptr?
by Robert Dailey 13 Jun '09

13 Jun '09

Hey guys, I remember a while back using boost::unique_ptr<Foo>, but I can't seem to find that class anymore. I'm using Boost 1.39. I noticed boost::interprocess::unique_ptr, but this isn't the same thing I'm looking for. Where can I find the boost::unique_ptr class? Is this in the sandbox somewhere? Thanks.

3 3

[PropertyTree] Rewrite - Please Review
by Sebastian Redl 13 Jun '09

13 Jun '09

Hi PropertyTree users, I have completed the main bulk of the property tree rewrite/cleanup. In the course of this, I have made the code standard-compliant (it previously used a std::list of an incomplete type, which is not, strictly speaking, valid), made it follow the claimed complexities (find() was O(n), although the docs said it's O(log n)), and revised the customization interface quite thoroughly. Inevitably, there were breaking changes in this process. I would ask everyone who has existing code using PropertyTree to look at these changes and tell me their best guess at how much effort it would be to update the code to conform with the new interface, and how I could make this easier. The development is still in a branch, so you need to check out the SVN branch http://svn.boost.org/svn/boost/branches/sredl_2009_05_proptree_update to try out the new version. The breaking changes are as follows: 1) Probably the most common change need: ptree::find() now returns the new type assoc_iterator (const_assoc_iterator for the const version) instead of iterator (const_iterator). This means that you need to change the type of the variable you capture the result with to assoc_iterator. It also means you need to compare the result of find() against ptree::not_found() instead of ptree::end(). You can get an iterator from an assoc_iterator by passing it to ptree::to_iterator(). The other projection direction is currently not supported, although it would be trivial to add. 2) The number and order of template arguments to basic_ptree has been changed. The old arguments were * Key comparison predicate * Key type * Path type * Data type * Translator type The new arguments are * Key type * Data type * Key comparison predicate (defaults to std::less<Key>) The old order prevented defaulting and wasn't very useful in general. The new order is consistent with std::map. The path and translator arguments have been removed to simplify the interface of basic_ptree. Equivalent functionality is available (see below). If you used your own instantiation of basic_ptree before, instead of simply using the (wi)ptree typedefs, you will have to adapt your code to the new order. If you used custom path and/or translator types, read on. 3) put and put_child previously had a final parameter 'bool do_not_replace'. I don't like boolean parameters, especially those whose name contains a negation. I removed the parameter, and replaced its functionality by a pair of new functions, add and add_child. If you previously called put or put_child passing true for do_not_replace, you must change these calls to add or add_child, respectively. If you ever passed false explicitly, you have to remove this parameter. 4) Using custom path types has changed. You can no longer create individual basic_ptree instantiations with custom path types. Instead, a key type has a fixed path type associated with it. I can bring this functionality back pretty easily if required, but I want to see use cases for this first. (Such things are why I make this call for reviews.) Less template parameters to ptree is good, in my opinion. To use a key type other than std::basic_string specializations, you have to specialize boost::property_tree::path_of for this key type. The path_of struct contains a single type called type, which is the path to use for this key type. The way paths are implemented has also changed thoroughly. Previously, you had to implement a const and a non-const variant of get_child, plus put_child (with do_not_replace making that effectively two functions too). These functions contained a lot of logic that really belonged into ptree, making implementing custom paths tedious and error-prone. The new interface requires you to implement four functions, but they're far simpler. The functions are described in ptree_fwd.hpp in C++0x concept syntax, but here's the gist: bool path::empty() const -> is the path empty? bool path::single() const -> does the path contain a single element? key_type path::reduce() -> chop off the first part of this path and return it (basically a pop_front that returns the value). std::string dump() const -> get a readable form of this path for exception messages; feel free to return "" here if you don't care. The new interface should be easy to implement, and the tree traversal is now where it belongs (in the internal implementation functions walk_path and force_path). 5) Using custom translators has changed. A ptree no longer has a fixed translator associated with it. Instead, you can supply a custom translator to every get_value/get/put_value/put operation or use the default, which depends on the tree's data type and the type you extract/insert. An example: ptree pt; pt.put("k1.k2", 100); // Uses the default translator for std::string+int. // Note: the explicit template parameter here will go away. float f = pt.get<float>("k1.k2", my_special_float_string_converter()); The tree's own data type is called the internal type, while the parameter/return type is called the external type. The default translator for a internal+external pair is set by specializing the boost::property_tree::translator_between struct. By default, PropertyTree supplies an id_translator for when the internal and external types are the same, and a stream_translator for converting between a basic_string and anything else. Together, they faithfully emulate the behavior of the old default translator. Writing a custom translator is easy. It's a class that provides two typedefs and two functions: typename internal_type -> the internal data type typename external_type -> the external data type optional<external_type> Tr::get_value(internal_type) -> convert from the internal to the external type, boost::none on failure optional<internal_type> Tr::put_value(external_type) -> convert from the external to the internal type, boost::none on failure That's it for the changes. The new version of property tree is not quite complete yet. I still need to polish the documentation a little and document the new extension mechanisms properly. I also need to clean up a little. Finally, the INI parser doesn't work at the moment. However, the main functionality (tested by property_tree_test) plus the XML, JSON and INFO parsers should all work now. Looking forward to your feedback. Sebastian

4 5

date/time input facets - what am I doing wrong?
by Joe Nardone 13 Jun '09

13 Jun '09

I'm trying to get input facets working for dates and times using time_input_facet. (Boost 1.33.1 on RHEL5; upgrading is not an option at the moment) std::stringstream ss; ss.str("Feb 28 16:22:11 2009"); time_input_facet* tf = new time_input_facet("%b %e %H:%M:%S %Y"); ss.imbue(std::locale(std::locale::classic(), tf)); ss.exceptions(std::ios_base::failbit); ptime z; ss >> z; std::cout<< z << std::endl; This throws an exception - Parse failed. No match found for '' I figure I'm missing something simple. (when I try a different format: "%b %e %Y %H:%M:%S" for "Feb 28 2009 11:15:11" I get a "Year is out of valid range: 1400..10000" exception??) Thanks for any insight. joe

3 2

[program_options] [msvc 2010] 1.34.1: Error when compiling
by Boris Dušek 13 Jun '09

13 Jun '09

Hello, I got hands on the Visual Studio 2010 Beta 1 and had to rebuild the 1.34.1 version of boost libraries I use in my project with the new VC 10 compiler. Thread, Test, IOStreams, Filesystem built fine, but program_options failed. Let me first clarify why I do need 1.34.1: This is the version that is most available on Linux servers (including the one I develop for), so I need this version on my development box to ensure source code compatibility, even though this version does not officially support even VC 9 (which however builds it fine and I happily use it). Below I list the errors that happened with the VC 10 compiler. I aggregated them to 3 issues. For multiple occurences of issue 1., I only copy/paste the full output for the first occurence. I would welcome if someone could tell me if these are the new compiler's fault, or not. If they are, I plan to report them on MS Connect so that they can hopefully get fixed before next Beta (or at least before the RTM). 1. C2668: 'boost::bind' : ambiguous call to overloaded function ======================================== Happens here: libs\program_options\src\cmdline.cpp(198) libs\program_options\src\cmdline.cpp(202) libs\program_options\src\cmdline.cpp(206) libs\program_options\src\cmdline.cpp(210) libs\program_options\src\cmdline.cpp(213) libs\program_options\src\cmdline.cpp(215) libs\program_options\src\parsers.cpp(73) For the first occurence (cmdline.cpp(198)), the message states these further details (I checked the boost::bind vs. std::tr1::bind is listed in all 7 occurences): C:\Documents and Settings\Boris\My Documents\Downloads\boost_1_34_1\boost/bind/bind_mf_cc.hpp(43): could be 'boost::_bi::bind_t<R,F,L> boost::bind<std::vector<_Ty>,boost::program_options::detail::cmdline,std::vector<std::string>&,boost::program_options::detail::cmdline*,boost::arg<I>>(R (__thiscall boost::program_options::detail::cmdline::* )(B1),A1,A2)' with [ R=std::vector<boost::program_options::option>, F=boost::_mfi::mf1<std::vector<boost::program_options::option>,boost::program_options::detail::cmdline,std::vector<std::string> &>, L=boost::_bi::list2<boost::_bi::value<boost::program_options::detail::cmdline *>,boost::arg<1>>, _Ty=boost::program_options::option, I=1, B1=std::vector<std::string> &, A1=boost::program_options::detail::cmdline *, A2=boost::arg<1> ] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\xxbind1(431): or 'std::tr1::_Bind<_Result_type,_Ret,_BindN> std::tr1::bind<boost::program_options::detail::cmdline,std::vector<_Ty>&,boost::program_options::detail::cmdline*,boost::arg<I>,std::vector<boost::program_options::option>>(_Rx (__thiscall boost::program_options::detail::cmdline::* const )(_Farg1),_Arg0,_Arg1)' [found using argument-dependent lookup] with [ _Result_type=std::vector<boost::program_options::option>, _Ret=std::vector<boost::program_options::option>, _BindN=std::tr1::_Bind2<std::tr1::_Callable_pmf<std::vector<boost::program_options::option> (__thiscall boost::program_options::detail::cmdline::* const )(std::vector<std::string> &),boost::program_options::detail::cmdline,false>,boost::program_options::detail::cmdline *,boost::arg<1>>, _Ty=std::string, I=1, _Rx=std::vector<boost::program_options::option>, _Farg1=std::vector<std::string> &, _Arg0=boost::program_options::detail::cmdline *, _Arg1=boost::arg<1> ] while trying to match the argument list '(std::vector<_Ty> (__thiscall boost::program_options::detail::cmdline::* )(std::vector<std::string> &), boost::program_options::detail::cmdline *const , boost::arg<I>)' with [ _Ty=boost::program_options::option ] and [ I=1 ] 2. Deduction of template parameters for std::transform (C2780, C2784) ================================================= libs\program_options\src\parsers.cpp(73) : error C2780: '_OutTy *std::transform(_InIt1,_InIt1,_InTy (&)[_InSize],_OutTy (&)[_OutSize],_Fn2)' : expects 5 arguments - 4 provided C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\algorithm(1288) : see declaration of 'std::transform' libs\program_options\src\parsers.cpp(73) : error C2780: '_OutTy *std::transform(_InIt1,_InIt1,_InIt2,_OutTy (&)[_OutSize],_Fn2)' : expects 5 arguments - 4 provided C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\algorithm(1274) : see declaration of 'std::transform' libs\program_options\src\parsers.cpp(73) : error C2780: '_OutIt std::transform(_InIt1,_InIt1,_InTy (&)[_InSize],_OutIt,_Fn2)' : expects 5 arguments - 4 provided C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\algorithm(1262) : see declaration of 'std::transform' libs\program_options\src\parsers.cpp(73) : error C2780: '_OutIt std::transform(_InIt1,_InIt1,_InIt2,_OutIt,_Fn2)' : expects 5 arguments - 4 provided C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\algorithm(1244) : see declaration of 'std::transform' libs\program_options\src\parsers.cpp(73) : error C2784: '_OutTy *std::transform(_InIt,_InIt,_OutTy (&)[_OutSize],_Fn1)' : could not deduce template argument for '_OutTy (&)[_OutSize]' from 'std::back_insert_iterator<_Container>' with [ _Container=std::vector<std::wstring> ] C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\algorithm(1122) : see declaration of 'std::transform' 3. cannot convert from 'std::_Tree_const_iterator<_Mytree>' to 'std::_Tree_iterator<_Mytree> ================================================================= C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\map(258) : error C2440: 'initializing' : cannot convert from 'std::_Tree_const_iterator<_Mytree>' to 'std::_Tree_iterator<_Mytree>' with [ _Mytree=std::_Tree_val<std::_Tmap_traits<std::string,boost::program_options::variable_value,std::less<std::string>,std::allocator<std::pair<const std::string,boost::program_options::variable_value>>,false>> ] No constructor could take the source type, or constructor overload resolution was ambiguous C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\map(257) : while compiling class template member function 'const boost::program_options::variable_value &std::map<_Kty,_Ty>::at(const std::basic_string<_Elem,_Traits,_Ax> &) const' with [ _Kty=std::string, _Ty=boost::program_options::variable_value, _Elem=char, _Traits=std::char_traits<char>, _Ax=std::allocator<char> ] C:\Documents and Settings\Boris\My Documents\Downloads\boost_1_34_1\boost/program_options/variables_map.hpp(139) : see reference to class template instantiation 'std::map<_Kty,_Ty>' being compiled with [ _Kty=std::string, _Ty=boost::program_options::variable_value ] Maybe this info from VC10 developer blog helps for some cases: "TR1/C++0x components ... they still live in std::tr1 and are dragged into std with using-declarations" [1] Any comments on whether these are compiler's faults or not would be welcome. Thanks, Boris Dušek [1]: http://blogs.msdn.com/vcblog/archive/2009/05/25/stl-breaking-changes-in-vis…

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Serializing derived class in dll
by Christian Bergstrand 13 Jun '09

13 Jun '09

I am working on a programwith pluggable classes delivered in DLLs, so I have an virtual abstract base class in my EXE and both abstract and concrete classes in a hiearchy in my first DLL. I am trying ot serialize the derived class instances through a base class pointer. I am not able to get it to work after reading the samples in the documentation and the most likely looking threads here. So I broke it down in to a sample EXE/DLL and can still not get it to work. I am using version 1_38 currently, also tried with 1_36_0 I am getting the exeption on oserializer.hpp:374 where the comment says // note:if this exception is thrown, be sure that derived pointer // is either registered or exported. In my opinion I am exporting my derived class, but I am feeling that it is probably going into the wrong instance, since the export code is going into the DLL, but I can not find any other recomendation. So what am I missing ... ------------------------ serializedll\base.h ------------------------ #pragma once class Base { public: virtual void f() = 0; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { } }; BOOST_SERIALIZATION_ASSUME_ABSTRACT( Base ) ------------------------ serializedll\serializedll.cpp, in the EXE ------------------------ #include <tchar.h> #include <windows.h> #include <fstream> #include <boost/archive/text_oarchive.hpp> #include <boost/serialization/nvp.hpp> #include "base.h" int _tmain(int argc, _TCHAR* argv[]) { typedef Base * ( GetObjFun )(); GetObjFun * f = (GetObjFun*)GetProcAddress( LoadLibrary( TEXT( "plugin.dll" ) ), "getobj" ); Base * obj = f(); std::ofstream ofs( "c:\\test.xml" ); boost::archive::text_oarchive oa(ofs); oa << obj; return 0; } ------------------------ plugin\plugin.cpp, in the DLL ------------------------ #include <windows.h> #include <boost/serialization/export.hpp> #include <boost/archive/text_oarchive.hpp> #include "../serializedll/base.h" BOOL APIENTRY DllMain( HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved ) { return TRUE; } class Derived : public Base { public: virtual void f() { } private: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & boost::serialization::base_object< Base >( *this ); } }; BOOST_CLASS_EXPORT( Derived ) Base * getobj() { return new Derived(); }

2 3

Re: [Boost-users] Boost.Filesystem with MSVC8 & STLPort linker errors
by Craig Henderson 12 Jun '09

12 Jun '09

> > I have an application using Boost.Filesystem, Boost.Thread and others, that > > I am building on Windows XP using MSVC8, STLPort and Boost 1.39.0. I have > > built Boost using Boost Jam 3.1.17 and STLPort. > > How exactly? What commands did you type, and what configuration files are you > using? Did you use stdlib=stlport ? For STLPORT I used: STLport-5.2.1>set include=...\STLport\STLport-5.2.1\stlport;%include% STLport-5.2.1>configure msvc8 -p winxp -x --without-thread STLport-5.2.1\build\lib>nmake clean install And then for Boost, edited boost_1_39_0\tools\build\v2\user-config.jam to # ------------------- # MSVC configuration. # ------------------- # Configure specific msvc version (searched for in standard locations and PATH). using msvc : 8.0 ; # ---------------------- # STLPort configuration. # ---------------------- using stlport : : ...\STLport\STLport-5.2.1\stlport ...\STLport\STLport-5.2.1\lib\vc8 ; and built with boost_1_39_0>set include=...\STLport\STLport-5.2.1\stlport;%include% boost_1_39_0> ..\bjam --toolset=msvc stdlib=stlport "stdlib:stlport-iostream=on" --with-filesystem --with-thread --with-date_time Regards -- Craig

3 4

Serialization of boost::posix_time::ptime
by Archie14 12 Jun '09

12 Jun '09

I am saving and restoring thousand ptimes and integers. If I am saving/restoring only ptimes - everything works. If I add integers to it - it breaks. Code to reproduce the problem is shown below. I will appreciate any help in solving the problem. void test() { boost::gregorian::date ofdate = boost::gregorian::day_clock::local_day(); boost::posix_time::ptime dt = boost::posix_time::second_clock().local_time(); dt = boost::posix_time::ptime(ofdate, dt.time_of_day()); boost::posix_time::ptime dtcurrent = dt; std::ofstream fst; fst.open(L"c:\\test.test", std::ios_base::binary); for (int i = 0; i<1000;i++) { fst.write((char*)&i, sizeof(int)); dtcurrent += boost::posix_time::time_duration(0,0, i); fst<<dtcurrent; } fst.close(); std::ifstream ist(L"c:\\test.test", std::ios_base::binary); dtcurrent = dt; for (int i = 0; i<1000;i++) { dtcurrent += boost::posix_time::time_duration(0,0, i); int j = -1; ist.read((char*)&j, sizeof(int)); boost::posix_time::ptime dt1; ist>>dt1; assert ( (dtcurrent == dt1) && (j == i) ); } ist.close(); }

1 0

[mpi] failed test and other issues
by Nick Collier 12 Jun '09

12 Jun '09

Hi, I'm using boost-1.39.0 with openMpi 1.3.2 on OSX 10.5.7. I'm getting some strange behavior when sending and receiving a vector of pointers between processes. The received pointer addresses are sometimes invalid. I'm not using the skeleton content code, just sending and receiving the vector. Some output: [2] processing edges from 1 [2] unpacking edge 0x834810 [2] unpacking edge 0x834810 [0] processing edges from 2 [0] unpacking edge 0x834ec0 [0] unpacking edge 0x834ec0 [2] processing edges from 3 [2] unpacking edge 0x8346c0 [2] unpacking edge 0x8346c0 [2] processing edges from 0 [2] unpacking edge 0x1 [2] unpacking edge 0x1 The hex value is the pointer address, and obviously doing anything with the edge with the weird address causes the app to crash. I can't see that I'm doing anything wrong (although of course that's a possibility) and so I thought I'd run the boost mpi tests. The skeleton_content_test fails consistently with the following output: Broadcasting integer list skeleton from root 0...OK. Broadcasting integer list content from root 0...OK. Broadcasting reversed integer list content from root 0...OK. ../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted.../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted. **** 1 error detected ../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted. **** 1 error detected ../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted. **** 1 error detected ../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted. **** 1 error detected **** 1 error detected ../../../boost/test/minimal.hpp(123): exception "memory access violation at address: 0x974bfd1c: non-existent physical address" caught in function: 'int main(int, char**)' **** Testing aborted. **** 1 error detected I'm not sure if this is related to my problem but the memory issues made me wonder. Any help is appreciated, thanks, Nick

3 5

Boost.Filesystem with MSVC8 & STLPort linker errors
by Craig Henderson 12 Jun '09

12 Jun '09

Hi, I have an application using Boost.Filesystem, Boost.Thread and others, that I am building on Windows XP using MSVC8, STLPort and Boost 1.39.0. I have built Boost using Boost Jam 3.1.17 and STLPort. Using the MSVC native STL I get no errors and everything runs well, but with the STL version, I have four linker errors; all from Boost.Filesystem. Has anyone come across this problem before and found a solution, or give me a clue what might be wrong? Many thanks -- Craig 1>fsdatasource.obj : error LNK2019: unresolved external symbol "class boost::filesystem::file_status __cdecl boost::filesystem::detail::status_api(class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> > const &,class boost::system::error_code &)" (?status_api@detail@filesystem@boost@@YA?AVfile_status@23@ABV?$basic_string@ DV?$char_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@AAVerror_code@syst em@3@@Z) referenced in function "bool __cdecl boost::filesystem::is_directory<class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> >(class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> const &)" (??$is_directory@V?$basic_path@V?$basic_string@DV?$char_traits@D@stlpd_std@@ V?$allocator@D@2@@stlpd_std@@Upath_traits@filesystem@boost@@@filesystem@boos t@@@filesystem@boost@@YA_NABV?$basic_path@V?$basic_string@DV?$char_traits@D@ stlpd_std@@V?$allocator@D@2@@stlpd_std@@Upath_traits@filesystem@boost@@@01@@ Z) 1>fsdatasource.obj : error LNK2019: unresolved external symbol "class boost::system::error_code __cdecl boost::filesystem::detail::dir_itr_increment(void * &,class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> > &,class boost::filesystem::file_status &,class boost::filesystem::file_status &)" (?dir_itr_increment@detail@filesystem@boost@@YA?AVerror_code@system@3@AAPAXA AV?$basic_string@DV?$char_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@A AVfile_status@23@2@Z) referenced in function "private: void __thiscall boost::filesystem::basic_directory_iterator<class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> >::increment(void)" (?increment@?$basic_directory_iterator@V?$basic_path@V?$basic_string@DV?$cha r_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@Upath_traits@filesystem@b oost@@@filesystem@boost@@@filesystem@boost@@AAEXXZ) 1>fsdatasource.obj : error LNK2019: unresolved external symbol "class boost::system::error_code __cdecl boost::filesystem::detail::dir_itr_first(void * &,class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> > const &,class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> > &,class boost::filesystem::file_status &,class boost::filesystem::file_status &)" (?dir_itr_first@detail@filesystem@boost@@YA?AVerror_code@system@3@AAPAXABV?$ basic_string@DV?$char_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@AAV67 @AAVfile_status@23@3@Z) referenced in function "private: class boost::system::error_code __thiscall boost::filesystem::basic_directory_iterator<class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> >::m_init(class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> const &)" (?m_init@?$basic_directory_iterator@V?$basic_path@V?$basic_string@DV?$char_t raits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@Upath_traits@filesystem@boos t@@@filesystem@boost@@@filesystem@boost@@AAE?AVerror_code@system@3@ABV?$basi c_path@V?$basic_string@DV?$char_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_ std@@Upath_traits@filesystem@boost@@@23@@Z) 1>fsdatasource.obj : error LNK2019: unresolved external symbol "class boost::system::error_code __cdecl boost::filesystem::detail::remove_api(class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> > const &)" (?remove_api@detail@filesystem@boost@@YA?AVerror_code@system@3@ABV?$basic_st ring@DV?$char_traits@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@@Z) referenced in function "bool __cdecl boost::filesystem::detail::remove_aux<class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> >(class boost::filesystem::basic_path<class stlpd_std::basic_string<char,class stlpd_std::char_traits<char>,class stlpd_std::allocator<char> >,struct boost::filesystem::path_traits> const &,class boost::filesystem::file_status)" (??$remove_aux@V?$basic_path@V?$basic_string@DV?$char_traits@D@stlpd_std@@V? $allocator@D@2@@stlpd_std@@Upath_traits@filesystem@boost@@@filesystem@boost@ @@detail@filesystem@boost@@YA_NABV?$basic_path@V?$basic_string@DV?$char_trai ts@D@stlpd_std@@V?$allocator@D@2@@stlpd_std@@Upath_traits@filesystem@boost@@ @12@Vfile_status@12@@Z)

2 1

Re: [Boost-users] C++ Framework Libraries for Programming Populardatabases
by biolaser 12 Jun '09

12 Jun '09

Thanks all for your help in pointing me to solutions for database programming framework libraries. Please let me know if additional prospects become available.

1 0

[Multi-Index] Get container view of a non-unique-index equal_range?
by Dominique Devienne 12 Jun '09

12 Jun '09

Given for example class Ident : public noncopyable { .. .}; class VehicleIdent : public Ident { ... }; struct ByUid {}; struct ByType {}; struct ByNKey {}; struct VehicleIdentHash { ... }; struct VehicleIdentPred { ... }; typedef boost::multi_index_container< shared_ptr<VehicleIdent>, indexed_by< hashed_unique< // primary (surrogate) key tag<ByUid>, BOOST_MULTI_INDEX_CONST_MEM_FUN( Ident, const Uid&, uid ) >, hashed_unique< // natural key (logical primary key) tag<ByNKey>, identity< shared_ptr<VehicleIdent> >, VehicleIdentHash, VehicleIdentPred >, // additional index to iterate on a type range (e.g. all Cars) hashed_non_unique< tag<ByType>, BOOST_MULTI_INDEX_CONST_MEM_FUN( VehicleIdent, const string&, type ) > > > VehicleIndex; typedef VehicleIndex::index<ByUid>::type VehicleByUid; typedef VehicleIndex::index<ByType>::type VehicleByType; typedef VehicleIndex::index<ByNKey>::type VehicleByNKey; I'd like to be able to have a "view" of VehicleIndex, for example compatible with unordered_set in this case since using a hashed index, for a given vehicle type ("Audi" for example), and going further have this view allow inserts which would go into the "master" vehicle index under the cover, validated by its unique indexes. In pseudo-code, something a bit like this: struct VehicleMake { VehicleByType::EqualRangeView& models_; VehicleMake(const string& name) : models_(get<ByType>(get_vehicle_index()).equal_range_view(name)) {} }; With models_ behaving has a normal container one can iterate on (begin, end), query (empty, find, count), modify (insert, erase, clear, etc...), those operations only affecting the VehicleIndex elements matching the VehicleByType given range, and possibly asserting all inserts are valid for the range (the vehicles added via the "range view" have the type matching the range's type). Can this be done? Has it been considered as a possible extension, and is it even feasible given the current B.MI design? Any input on how to achieve or emulate the above would be appreciated. Thanks, --DD PS: The above design is synthetic of course. We have a parent-child hierarchy of C++ objects where parents have lists of their children, but now there's a list of all children, from all parents, in a B.MI, indexed (non-unique) on the parent instance, and I'd like the "concrete" list maintained by each parent to become the kind of "view" I'm describing above. Right now I'm manually maintaining the sync of the existing and the new "master" list (the B.MI index), having to "sprinkle" the code to keep them in sync, but the "view" approach above would be cleaner IMHO, and avoid many potential bugs from forgetting to "sprinkle" in all the right places.

2 4

Help needed to implement D_shortest_path
by Amanullah Yasin 12 Jun '09

12 Jun '09

Hi Dear all, Sorry for disturbing, i hope you can help me because i am facing one problem i tried a lot but i can not succeeded. To find the directed path between two nodes. First i tried to implement Depth First Search but it is searching the verteces even there is no edge exist. so, now i want to implement dijkstra_shortest_path , it is giving errors. Please guide me how i can implement this method. code is : slGraph& graph = this->pBN->get_graph(); slNode n = vertex(2, graph); std::vector<slNode> p(num_vertices(graph)); std::vector<int> d(num_vertices(graph)); boost::property_map<slGraph, edge_weight_t>::type weightMap = get(edge_weight, graph); boost::property_map<slGraph, vertex_index_t>::type indexmap = get(vertex_index, graph); dijkstra_shortest_paths(graph, n, predecessor_map(&p[0]).distance_map(&d[0])); // First pattern to implement //dijkstra_shortest_paths(graph, n, &p[0], &d[0], weightMap, indexmap, // std::less<int>(), closed_plus<int>(), // second pattern // (std::numeric_limits<int>::max)(), 0, // default_dijkstra_visitor()); ============================================ errors ============================================================== 1>c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(251) : error C2664: 'void put<int,DistInf>(T *,ptrdiff_t,const V &)' : cannot convert parameter 2 from 'void *' to 'ptrdiff_t' 1> with 1> [ 1> DistInf=int, 1> T=int, 1> V=int 1> ] 1> There is no context in which this conversion is possible 1> c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(292) : see reference to function template instantiation 'void boost::dijkstra_shortest_paths<VertexListGraph,boost::dijkstra_visitor<>,void**__w64 ,DistanceMap,WeightMap,IndexMap,std::less<_Ty>,boost::closed_plus<T>,int,int,ColorMap>(const VertexListGraph &,void *,PredecessorMap,DistanceMap,WeightMap,IndexMap,Compare,Combine,DistInf,DistZero,DijkstraVisitor,ColorMap)' being compiled 1> with 1> [ 1> VertexListGraph=slGraph, 1> DistanceMap=int *__w64 , 1> WeightMap=boost::adj_list_edge_property_map<boost::bidirectional_tag,long double,const long double &,void *,const boost::property<boost::edge_weight_t,slScoreValueType>,boost::edge_weight_t>, 1> IndexMap=boost::adj_list_vertex_property_map<slGraph,unsigned int,const unsigned int &,boost::vertex_index_t>, 1> _Ty=D, 1> T=D, 1> ColorMap=boost::iterator_property_map<std::_Vector_iterator<boost::default_color_type,std::allocator<boost::default_color_type>>,boost::adj_list_vertex_property_map<slGraph,unsigned int,const unsigned int &,boost::vertex_index_t>,boost::default_color_type,boost::default_color_type &>, 1> PredecessorMap=void **__w64 , 1> Compare=std::less<D>, 1> Combine=boost::closed_plus<D>, 1> DistInf=int, 1> DistZero=int, 1> DijkstraVisitor=boost::dijkstra_visitor<> 1> ] 1> c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(322) : see reference to function template instantiation 'void boost::detail::dijkstra_dispatch2<VertexListGraph,int*__w64 ,WeightMap,IndexMap,Params,boost::iterator_property_map<RandomAccessIterator,IndexMap,T,R>>(const VertexListGraph &,void *,DistanceMap,WeightMap,IndexMap,const Params &,ColorMap)' being compiled 1> with 1> [ 1> VertexListGraph=slGraph, 1> WeightMap=boost::adj_list_edge_property_map<boost::bidirectional_tag,long double,const long double &,void *,const boost::property<boost::edge_weight_t,slScoreValueType>,boost::edge_weight_t>, 1> IndexMap=boost::adj_list_vertex_property_map<slGraph,unsigned int,const unsigned int &,boost::vertex_index_t>, 1> Params=boost::bgl_named_params<int *__w64 ,boost::vertex_distance_t,boost::bgl_named_params<void **__w64 ,boost::vertex_predecessor_t,boost::no_property>>, 1> RandomAccessIterator=std::_Vector_iterator<boost::default_color_type,std::allocator<boost::default_color_type>>, 1> T=boost::default_color_type, 1> R=boost::default_color_type &, 1> DistanceMap=int *__w64 , 1> ColorMap=boost::iterator_property_map<std::_Vector_iterator<boost::default_color_type,std::allocator<boost::default_color_type>>,boost::adj_list_vertex_property_map<slGraph,unsigned int,const unsigned int &,boost::vertex_index_t>,boost::default_color_type,boost::default_color_type &> 1> ] 1> c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(342) : see reference to function template instantiation 'void boost::detail::dijkstra_dispatch1<VertexListGraph,int*__w64 ,boost::adj_list_edge_property_map<Directed,Value,Ref,Vertex,Property,Tag>,boost::adj_list_vertex_property_map<Graph,ValueType,Reference,boost::vertex_index_t>,boost::bgl_named_params<T,boost::vertex_distance_t,Base>,boost::detail::error_property_not_found>(const VertexListGraph &,void *,DistanceMap,WeightMap,IndexMap,const Params &,ColorMap)' being compiled 1> with 1> [ 1> VertexListGraph=slGraph, 1> Directed=boost::bidirectional_tag, 1> Value=long double, 1> Ref=const long double &, 1> Vertex=void *, 1> Property=const boost::property<boost::edge_weight_t,slScoreValueType>, 1> Tag=boost::edge_weight_t, 1> Graph=slGraph, 1> ValueType=unsigned int, 1> Reference=const unsigned int &, 1> T=int *__w64 , 1> Base=boost::bgl_named_params<void **__w64 ,boost::vertex_predecessor_t,boost::no_property>, 1> DistanceMap=int *__w64 , 1> WeightMap=boost::adj_list_edge_property_map<boost::bidirectional_tag,long double,const long double &,void *,const boost::property<boost::edge_weight_t,slScoreValueType>,boost::edge_weight_t>, 1> IndexMap=boost::adj_list_vertex_property_map<slGraph,unsigned int,const unsigned int &,boost::vertex_index_t>, 1> Params=boost::bgl_named_params<int *__w64 ,boost::vertex_distance_t,boost::bgl_named_params<void **__w64 ,boost::vertex_predecessor_t,boost::no_property>>, 1> ColorMap=boost::detail::error_property_not_found 1> ] 1> c:\probt_slp\work\yasin\test\pc\algopc.cpp(251) : see reference to function template instantiation 'void boost::dijkstra_shortest_paths<slGraph,int*__w64 ,boost::vertex_distance_t,boost::bgl_named_params<T,Tag,Base>>(const VertexListGraph &,void *,const boost::bgl_named_params<int *__w64 ,boost::vertex_distance_t,boost::bgl_named_params<T,Tag,Base>> &)' being compiled 1> with 1> [ 1> T=void **__w64 , 1> Tag=boost::vertex_predecessor_t, 1> Base=boost::no_property, 1> VertexListGraph=slGraph 1> ] 1>c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(252) : error C2664: 'void put<void*,void*>(T *,ptrdiff_t,const V &)' : cannot convert parameter 2 from 'void *' to 'ptrdiff_t' 1> with 1> [ 1> T=void *, 1> V=void * 1> ] 1> There is no context in which this conversion is possible 1>c:\probt_slp\boost\include\boost\graph\dijkstra_shortest_paths.hpp(255) : error C2664: 'void put<int,DistInf>(T *,ptrdiff_t,const V &)' : cannot convert parameter 2 from 'void *' to 'ptrdiff_t' 1> with 1> [ 1> DistInf=int, 1> T=int, 1> V=int 1> ] 1> There is no context in which this conversion is possible 1>Build log was saved at "file://c:\ProBT_SLP\work\yasin\test\Debug\BuildLog.htm" 1>testPC - 3 error(s), 75 warning(s) ============================================================================================================== I will be thankful to you for your guidance. Regards Amanullah YASIN Master2 (ECD) Ecole Polytechnique Université de Nantes, France. Mob# 06 47 62 89 96 Fix # 02 72 00 26 45 amanyasin(a)gmail.com

2 4

Mixing shared_ptr and regular pointers in containers
by Remko Tronçon 12 Jun '09

12 Jun '09

Hi, This feels like a stupid question, but is there an easy/clean way of mixing shared_ptr<A> and regular A* pointers in one STL container? Boost.Variant comes to mind, but I somehow have the idea that there's a more obvious way and that I'm missing it. thanks, Remko

3 3

C++ Framework Libraries for Programming Popular databases
by biolaser 12 Jun '09

12 Jun '09

I am interested in your recommendation of any open source, cross-platform C++ libraries designed for programming the major databases (Oracle, MySql, Postgres, MS Access, Sybase, etc). Boost does not provide any such database/sql library framework for C++. If you can point me toward a source or sources that do offer such a framework, and possibly one(s) the Boost people favor, it would be very much appreciated. Primarily, I am developing code for Windows and Unix/Linux.

9 8

Spirit: Chset base uint32_t
by Etienne Philip Pretorius 11 Jun '09

11 Jun '09

Hello List, I am trying to define the Char definition in the XML specification and I receive this compiler error: hex escape sequence out of range Here is the relvent code: const static boost::spirit::chset<uint32_t> Char( "\x9\xA\xD\x20-\xD7FF\xE000-\xFFFD\x10000-\x10FFFF" ); Can someone please point me in the right direction to get this working. Thank you, Etienne Pretorius

2 1

shared_ptr binary compatibility
by pcayouette 11 Jun '09

11 Jun '09

Are shared_ptr binary compatible through boost versions? Example: Imagine a "Producer" class that sends shared_ptr to a "Consumer" class. Now imagine an executable that instanciate a Producer and a shared library (.dll or .so) that instanciate a Consumer. The executable is built with boost v1.xx. The shared library is built with boost v1.yy. If xx == yy, obviously there will be no problem since the version of the shared_ptr is the same. However if xx != yy, there might be a problem since the version of the shared_ptr might be binary imcompatible. Thanks, Philippe Cayouette -- View this message in context: http://www.nabble.com/shared_ptr-binary-compatibility-tp23985635p23985635.h… Sent from the Boost - Users mailing list archive at Nabble.com.

2 1

Am I doing something wrong here? Boost threads & intrusive_ptr crash
by Space Ship Traveller 11 Jun '09

11 Jun '09

Hi, I'm using an event loop type system which I've implemented myself. This is due to specific needs. Event loop is fairly simple, it has several types of events: - Timer based events (relative or exact, repeating, etc) - IO based events - Notification based events Notifications are events which can come from any thread, and get processed on in the main loop. Here is the function which is used to post a notification. REF(t) is simply a macro for boost::intrusive_ptr<t>. void Loop::postNotification (REF(INotificationSource) note, bool urgent) { using namespace boost; typedef boost::mutex::scoped_lock scoped_lock; // Lock the event loop notification queue // Add note to the end of the queue // Interrupt event loop thread if urgent // We should probably lock around m_currentThread, it might not be set before we read it..? if (this_thread::get_id() == m_currentThread) { note->processEvents(this, NOTIFICATION); } else { { // Enqueue the notification to be processed scoped_lock lock(m_notifications.lock); m_notifications.sources->push(note); (*) } if (urgent) { // Interrupt event loop thread so that it processes notifications more quickly m_urgentNotificationPipe->notifyEventLoop(); } } } I'm experiencing a very infrequent crash at the line marked with (*). The note is a reference counted pointer (boost::intrusive_ptr), but by the time we get here, this pointer is invalid, even though there are still references to it in the system. The odd thing is, further up the chain (and on the same thread), I'm checking to ensure that note is valid, i.e. //... display update system, separate thread from event-loop. ensure(ctx->notificationSource); loop->postNotification(ctx->notificationSource); //... After writing this far in the email, I'm starting to see something where there could be an error. Is it possible that the object reference count is being messed up due to multi-threading issues? I.e. if the object is being passed around on two separate threads, having the reference count incremented and decremented at the same time? Actually, it seems obvious that this could be a problem... Are there any "patterns" for using reference counted objects across different threads? Any feedback is appreciated. Kind regards, Samuel

3 4

troubles building 1.39.0 with intel compiler under linux
by Frédéric Bron 11 Jun '09

11 Jun '09

Hi, I try to upgrade from 1.38 to 1.39 and have to rewrite my building scripts. For gcc I had no particular issue. But for the intel compiler, it does not work: $ ./bootstrap.sh --without-icu --without-libraries=python --prefix=/soft/bal/usr/icc/boost --with-toolset=intel-linux $ ./bjam --layout=system --libdir=/soft/bal/usr/icc/boost/lib link=static threading=multi runtime-link=shared address-model=64 instruction-set=nocona release install However, I obtain the following error from bjam: error: at /soft/bal/usr/builds/icc/boost_1_39_0/tools/build/v2/build/project.jam:874 error: intel-linux initialization: parameter 'version' inconsistent error: an explicit value was specified in an earlier initialization error: no value is specified now Any clue? Frédéric PS: the content of the automatically generated project-config.jam: import option ; import feature ; if ! intel-linux in [ feature.values <toolset> ] { using intel-linux ; } project : default-build <toolset>intel-linux ; libraries = --without-python ; option.set prefix : /soft/bal/usr/icc/boost ; option.set exec-prefix : /soft/bal/usr/icc/boost ; option.set libdir : /lib ; option.set includedir : /soft/bal/usr/icc/boost/include ;

3 3

Problem with throwing exceptions in async handler functions of ASIO library
by J.W.F. Thirion 11 Jun '09

11 Jun '09

Dear Boost community, We're having a problem using the ASIO class with multiple IO service threads and throwing exceptions inside the handle_xxx functions, as used by the async_xxx functions of the ASIO library. It seems that when any error is thrown in a normal/non-handler function, the try/catch block of the main program is able to catch the error. However, when the handler functions are called (I would assume by the io service, now running in a separate thread), the main function's try/catch blocks never receive the execeptions, and a std::terminate() is called automatically. To demonstrate this, we've taken the HTTP Server 2 example from the ASIO examples page and reduced its complexity. Below are the sources of the example. Basically, to duplicate the problem, run the main executable and then in another terminal, simply "telnet 127.0.0.1 60000" to see the std::terminate() being called, even though there are try/catch blocks in the main function (main.cpp). Here is an output: $ ./main terminate called after throwing an instance of 'int' Aborted $ We've also taken the HTTP Server 2 example "as is" and added a "throw 123;" at the top of handle_accept in server.cpp and a "catch (...)" block in posix_main.cpp. The same issue occurred here, which indicates that the exceptions are not propagated through all the way (maybe because the io service runs in a separate thread). Does anyone have a suggestion on how we can throw exceptions inside the handler functions of the async functions used? We'd like to handle all our errors with custom exception classes (e.g. ExceptionAccept is thrown if there is an error detected in handle_accept, which can then be handled inside the main function of main.cpp). We've compiled the sources below by typing: g++ -I/usr/local/boost/include/boost-1_38 -L/usr/local/boost/lib -lboost_thread-gcc41-mt-1_38 -lboost_system-gcc41-mt-1_38 io_service_pool.cpp server.cpp main.cpp -o main where /usr/local/boost is the local boost installation path. Many thanks in advance! Kind regards, Derik Thirion main.cpp -------- #include <iostream> #include <string> #include <boost/asio.hpp> #include <boost/thread.hpp> #include <boost/bind.hpp> #include <boost/lexical_cast.hpp> #include "server.hpp" #include <pthread.h> #include <signal.h> int main(int argc, char* argv[]) { try { // Block all signals for background thread. sigset_t new_mask; sigfillset(&new_mask); sigset_t old_mask; pthread_sigmask(SIG_BLOCK, &new_mask, &old_mask); server s("127.0.0.1", "60000", 2); // 2 threads boost::thread t(boost::bind(&server::run, &s)); // 2 threads // Restore previous signals. pthread_sigmask(SIG_SETMASK, &old_mask, 0); // Wait for signal indicating time to shut down. sigset_t wait_mask; sigemptyset(&wait_mask); sigaddset(&wait_mask, SIGINT); sigaddset(&wait_mask, SIGQUIT); sigaddset(&wait_mask, SIGTERM); pthread_sigmask(SIG_BLOCK, &wait_mask, 0); int sig = 0; sigwait(&wait_mask, &sig); s.stop(); t.join(); } catch (std::exception& e) { std::cerr << "exception: " << e.what() << "\n"; } catch (...) { std::cerr << "all exception" << "\n"; } return 0; } server.hpp ---------- #ifndef SERVER_HPP #define SERVER_HPP #include <boost/asio.hpp> #include <string> #include <vector> #include <boost/noncopyable.hpp> #include <boost/shared_ptr.hpp> #include "io_service_pool.hpp" /// The top-level class of the HTTP server. class server : private boost::noncopyable { public: /// Construct the server to listen on the specified TCP address and port, and /// serve up files from the given directory. explicit server(const std::string& address, const std::string& port, std::size_t io_service_pool_size); /// Run the server's io_service loop. void run(); /// Stop the server. void stop(); private: /// Handle completion of an asynchronous accept operation. void handle_accept(const boost::system::error_code& e); /// The pool of io_service objects used to perform asynchronous operations. io_service_pool io_service_pool_; /// Acceptor used to listen for incoming connections. boost::asio::ip::tcp::acceptor acceptor_; }; #endif // SERVER_HPP server.cpp ---------- #include "server.hpp" #include <boost/bind.hpp> server::server(const std::string& address, const std::string& port, std::size_t io_service_pool_size) : io_service_pool_(io_service_pool_size), acceptor_(io_service_pool_.get_io_service()) { // Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR). boost::asio::ip::tcp::resolver resolver(acceptor_.io_service()); boost::asio::ip::tcp::resolver::query query(address, port); boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query); acceptor_.open(endpoint.protocol()); acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true)); acceptor_.bind(endpoint); acceptor_.listen(); acceptor_.async_accept(*(new boost::asio::ip::tcp::socket(io_service_pool_.get_io_service())), boost::bind(&server::handle_accept, this, boost::asio::placeholders::error)); } void server::run() { io_service_pool_.run(); } void server::stop() { io_service_pool_.stop(); } void server::handle_accept(const boost::system::error_code& e) { throw 123; // this one never gets caught in main // instead std::terminate() gets called } io_service_pool.cpp ------------------- #include <stdexcept> #include <boost/thread.hpp> #include <boost/bind.hpp> #include <boost/shared_ptr.hpp> #include "io_service_pool.hpp" io_service_pool::io_service_pool(std::size_t pool_size) : next_io_service_(0) { if (pool_size == 0) throw std::runtime_error("io_service_pool size is 0"); // Give all the io_services work to do so that their run() functions will not // exit until they are explicitly stopped. for (std::size_t i = 0; i < pool_size; ++i) { io_service_ptr io_service(new boost::asio::io_service); work_ptr work(new boost::asio::io_service::work(*io_service)); io_services_.push_back(io_service); work_.push_back(work); } } void io_service_pool::run() { // Create a pool of threads to run all of the io_services. std::vector<boost::shared_ptr<boost::thread> > threads; for (std::size_t i = 0; i < io_services_.size(); ++i) { boost::shared_ptr<boost::thread> thread(new boost::thread( boost::bind(&boost::asio::io_service::run, io_services_[i]))); threads.push_back(thread); } // Wait for all threads in the pool to exit. for (std::size_t i = 0; i < threads.size(); ++i) threads[i]->join(); } void io_service_pool::stop() { // Explicitly stop all io_services. for (std::size_t i = 0; i < io_services_.size(); ++i) io_services_[i]->stop(); } boost::asio::io_service& io_service_pool::get_io_service() { // Use a round-robin scheme to choose the next io_service to use. boost::asio::io_service& io_service = *io_services_[next_io_service_]; ++next_io_service_; if (next_io_service_ == io_services_.size()) next_io_service_ = 0; return io_service; } io_service_pool.hpp: -------------------- #ifndef IO_SERVICE_POOL_HPP #define IO_SERVICE_POOL_HPP #include <boost/asio.hpp> #include <vector> #include <boost/noncopyable.hpp> #include <boost/shared_ptr.hpp> /// A pool of io_service objects. class io_service_pool : private boost::noncopyable { public: /// Construct the io_service pool. explicit io_service_pool(std::size_t pool_size); /// Run all io_service objects in the pool. void run(); /// Stop all io_service objects in the pool. void stop(); /// Get an io_service to use. boost::asio::io_service& get_io_service(); private: typedef boost::shared_ptr<boost::asio::io_service> io_service_ptr; typedef boost::shared_ptr<boost::asio::io_service::work> work_ptr; /// The pool of io_services. std::vector<io_service_ptr> io_services_; /// The work that keeps the io_services running. std::vector<work_ptr> work_; /// The next io_service to use for a connection. std::size_t next_io_service_; }; #endif // IO_SERVICE_POOL_HPP

3 4

boost::test test case levels
by Anatoli Sakhnik 11 Jun '09

11 Jun '09

Hi there! Our automatic tests are of two kinds: short (just like BOOST_CHECK_EQUAL(2*2, 4);), and complicated, which process bulks of random data (for instance, to check if a map with random numbers is always sorted). So we’d like to select which test cases to run: either simple ones or all. I see two ways: 1. Default variants release, debug build and run only simple test cases. We define another feature (or even a build variant) that builds and runs all the tests. This will require additional build efforts, and we’d like to select test cases in run-time. 2. We try to get use of --run_test=??? and test case name mangling. This is a hack, of course. Is there another way to select test cases in run-time? — Anatoli

2 1

[Boost.Thread] Join not waiting?
by James Auger 11 Jun '09

11 Jun '09

This is my first time working with Boost.Thread and I'm having some difficulty in that Join does not seem to work (obviously I'm doing something wrong). In a nutshell what I'm doing is: Instantiating the Example class (which has a boost::thread as a member variable) calling Example::run() (which starts the thread) do some stuff (both in main and in the thread) calling Example::terminate() (which sets the condition for the thread function to stop, and calls Join) end. The problem is that Join returns instantly, before the thread has finished. In the code below I've commented out the stop condition (making the thread run an infinite loop) to demonstrate that it keeps running after join returns. By my understanding of how boost threads and join works, this is not the correct behavior; my understanding is that the call to join should not return until the thread has stopped running. Either my understanding is wrong, or my code to make that happen is wrong. Can you guys help me? The example is stripped down/simplified code that I wrote to demonstrate and test what was going on in my actual program. Example Output: --- thread: main: 00 thread: main: 11 thread: main: 22 thread: main: 33 main: thread: 44 main: After Terminate thread: 5 thread: 6 thread: 7 thread: 8 --- Note the interleaved output 0 - 4, that's expected and fine. The problem is the thread is still running (as evidenced by writing to cout) after terminate() (and thus join()) has been called on that thread. Example Code: --- #include <iostream> #include <boost/thread/thread.hpp> #include <boost/thread/mutex.hpp> #include <boost/bind.hpp> class Example { public: Example() { flag = 0; }; void run() { flag = 1; boost::thread _myThread(boost::bind(&Example::threadLoop, this)); }; void terminate() { //flag = 3; //commented out stop condition _myThread.join(); }; private: void threadLoop() { flag = 2; for(int i = 0; flag == 2; i++) { boost::this_thread::sleep(boost::posix_time::seconds(1)); std::cout<<"thread: "<<i<<std::endl; } flag = 4; }; boost::thread _myThread; int flag; }; int main() { Example anExample; anExample.run(); for(int i = 0; i < 5; i++) { boost::this_thread::sleep(boost::posix_time::seconds(1)); std::cout<<"main: "<<i<<std::endl; } anExample.terminate(); std::cout<<"main: After Terminate"<<std::endl; boost::this_thread::sleep(boost::posix_time::seconds(5)); //sleep so we can see the thread still outputing return 0; } --- Thanks!

3 3

size of serialized ptime object?
by Archie14 11 Jun '09

11 Jun '09

when serializing ptime without using any custom facets, just by using >> or << : how to find the size of the serialized data? Seems to me that sizeof(ptime) should not return the proper value of serialized object size.

1 0

serializing ptr_map results in compiler error C2039
by Faheemullah Memon 11 Jun '09

11 Jun '09

I have some code that I want to build. The code uses boost::ptr_map class to serialize certain objects. I have Visual Studio 2008 with boost1.38 and I am getting following error from compiler. I wonder if any one else has seen any thing like this. C2039: 'serialize' : is not a member of 'boost::ptr_map<Key,T>' Looks like some reference is missing and I wonder what it is, I don't see any boost/serialization/ptr_map. I have Googled a lot and nothing has proved to be viable. I have created a sample code that generates the same error below #include <fstream> #include <iostream> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/config.hpp> #include <boost/shared_ptr.hpp> #include <boost/ptr_container/ptr_map.hpp> #include <boost/serialization/string.hpp> #include <boost/serialization/version.hpp> #include <boost/serialization/split_member.hpp> using namespace std; class User { boost::ptr_map<std::string, string> ptrmap; public: friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & ptrmap; } bool save(const std::string& filename) { ofstream ofs(filename.c_str()); if(ofs.good() == false) { return false; } try { boost::archive::text_oarchive oa(ofs); oa << (*this); } catch(...) { throw; } return true; } }; int main() { User user; user.save("C:\\test.db"); return EXIT_SUCCESS; } Any help is appreciated. faheemitian

2 1

Re: [Boost-users] [Boost.CircularBuffer] begin()/end() arithmetic not working out quite right
by Jan Gaspar 11 Jun '09

11 Jun '09

Hi David, you just cannot rely on this. I don't think standard says anything about begin() moving forward after push_back(). Correct me if I'm wrong. The way how it is implemented is that if the circular_buffer is empty begin() returns the same iterator as end(). There is also a note about iterator invalidation for push_back(): "Does not invalidate any iterators with the exception of iterators pointing to the overwritten element." It means iterator 'a' in your first example will point to the same element as it was before calling push_back() - which is end(). This explains the behaviour you are describing. Regards, Jan ----- Original Message ---- From: David Baird <dhbaird(a)gmail.com> To: Jan Gaspar <jano_gaspar(a)yahoo.com>; boost-users(a)lists.boost.org Sent: Thursday, 11 June, 2009 1:01:54 Subject: [Boost.CircularBuffer] begin()/end() arithmetic not working out quite right Hi, Firstly, thanks for the work on a circular buffer. This is very useful since many of my applications require it. I am having a problem though... I am using Boost 1.38.0. When I call push_back(), the iterator math makes it appear that begin() moves backwards and end() remains constant. (Based on other STL libraries, I expect that begin() will remain constant and end() will keep advancing as I call push_back()). In other words, this assertion fails (but I expect it to succeed): circular_buffer<int> buf(8); circular_buffer<int>::iterator a; circular_buffer<int>::iterator b; a = buf.begin(); buf.push_back(1); b = buf.begin(); assert(a == b); // Fails!! Also, this code fails too (but I expect it to succeed): circular_buffer<int> buf(8); circular_buffer<int>::iterator a; circular_buffer<int>::iterator b; a = buf.end(); buf.push_back(1); b = buf.end(); assert(a != b); // Also fails! Below is a full example that you can compile and try out: #include <boost/circular_buffer.hpp> #include <stdio.h> int main () { typedef boost::circular_buffer<int> buf_type; // Instead of "end" moving ahead, "begin" is moving backwards when // // using "push_back". { buf_type buf1(1024); buf_type::iterator a; buf_type::iterator b; a = buf1.end(); buf1.push_back(1); buf1.push_back(2); b = buf1.end(); printf ("%d\n", a == b); // >>> // got: 1 // expected: 0 printf ("%d, %d\n", a-buf1.begin(), b-buf1.begin()); // >>> // got: 2, 2 // expected: 0, 2 } { buf_type buf2(1024); buf_type::iterator c; buf_type::iterator d; c = buf2.begin(); buf2.push_back(1); buf2.push_back(2); d = buf2.begin(); printf ("%d\n", c == d); // >>> // got: 0 // expected: 1 // (i.e. "begin()" is not still pointing to first item!! // This is incorrect, isn't it?) printf ("%d, %d\n", buf2.end()-c, buf2.end()-d); // >>> // got: 0, 2 // expected: 2, 2 } return 0; } Thanks, David

1 0

[MPI] Derived class not properly registered, even if it is.
by Mathieu Larose 11 Jun '09

11 Jun '09

Hi, I'm using MPI and I've come to an strange assertion fail from the library and I was wondering if it was "normal". Here is the code. I've got three files: header.hpp main.cpp other.cpp - - - - - - - - header.cpp - - - - - - - - #ifndef HEADER_HPP #define HEADER_HPP #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> // Abstract class A { friend class boost::serialization::access; template <class Archive> void serialize(Archive & ar, const unsigned int version) {} public: virtual void foo() = 0; }; class B : public A { friend class boost::serialization::access; template <class Archive> void serialize(Archive & ar, const unsigned int version) { ar & boost::serialization::base_object<A>(*this); } public: void foo() {} }; #endif - - - - - - - - main.cpp - - - - - - - - #include <iostream> #include <boost/mpi.hpp> #include "header.hpp" // #include <boost/serialization/export.hpp> // BOOST_CLASS_EXPORT(B); int main(int argc, char * argv[]) { boost::mpi::environment env(argc, argv); boost::mpi::communicator world; if (world.rank() == 0) { A * a = new B; world.send(1,0,a); std::cout << "sent" << std::endl; } } - - - - - - - - other.cpp - - - - - - - - #include "header.hpp" #include <boost/serialization/export.hpp> BOOST_CLASS_EXPORT(B); If I run this code I've got this assertion fail: a.out: ./boost/archive/impl/archive_pointer_oserializer.ipp:64: static const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::archive_pointer_oserializer<Archive>::find(const boost::serialization::extended_type_info&) [with Archive = boost::mpi::packed_oarchive]: Assertion `it != boost::serialization::singleton< oserializer_map<Archive> >::get_const_instance().end()' failed. I realized that if I uncomment these lines in main.cpp: #include <boost/serialization/export.hpp> BOOST_CLASS_EXPORT(B); My code runs correctly. It seems that BOOST_CLASS_EXPORT needs to be in the same .cpp file (i.e main.cpp) where MPI is used. When using serialization only, BOOST_CLASS_EXPORT could be in any .cpp files. Is this normal? Also, if A is no more an abstract class, BOOST_CLASS_EXPORT(B); could be called from other.cpp and the code runs correctly. I'm using version 1.39.0. Thank you, Mathieu Larose

2 2

[conversion] Using Lexical_cast to convert string to float
by Ryan McConnehey 11 Jun '09

11 Jun '09

In writing some unit tests to convert strings to floats I've come across a puzzling situation. I was trying to test that a std::bad_cast was thrown if a number was too large to fit into a float. The error wasn't thrown but the float was given 1.#INF000. The work around I used was to cast to a double and then do a numeric_cast on the result. This provided an exception for values larger than could fit in a float. Lexical_cast on a double though works as I would have expected. If a value is too large to fit into a double then a std::bad_cast is called. float test = boost::lexical_cast<float>("3.4e050"); //test will have the value of 1.#INF000 float test = boost::numeric_cast<float>( boost::lexical_cast<double>("3.4e50"); //std::bad_cast is thrown double test = boost::lexical_cast<double>("3.4e350"); //std::bad_cast is thrown Is the lexical_cast for float behaving correctly? Ryan P.S. This code is using boost 1.38.0

2 4

[Boost.CircularBuffer] begin()/end() arithmetic not working out quite right
by David Baird 10 Jun '09

10 Jun '09

Hi, Firstly, thanks for the work on a circular buffer. This is very useful since many of my applications require it. I am having a problem though... I am using Boost 1.38.0. When I call push_back(), the iterator math makes it appear that begin() moves backwards and end() remains constant. (Based on other STL libraries, I expect that begin() will remain constant and end() will keep advancing as I call push_back()). In other words, this assertion fails (but I expect it to succeed): circular_buffer<int> buf(8); circular_buffer<int>::iterator a; circular_buffer<int>::iterator b; a = buf.begin(); buf.push_back(1); b = buf.begin(); assert(a == b); // Fails!! Also, this code fails too (but I expect it to succeed): circular_buffer<int> buf(8); circular_buffer<int>::iterator a; circular_buffer<int>::iterator b; a = buf.end(); buf.push_back(1); b = buf.end(); assert(a != b); // Also fails! Below is a full example that you can compile and try out: #include <boost/circular_buffer.hpp> #include <stdio.h> int main () { typedef boost::circular_buffer<int> buf_type; // Instead of "end" moving ahead, "begin" is moving backwards when // // using "push_back". { buf_type buf1(1024); buf_type::iterator a; buf_type::iterator b; a = buf1.end(); buf1.push_back(1); buf1.push_back(2); b = buf1.end(); printf ("%d\n", a == b); // >>> // got: 1 // expected: 0 printf ("%d, %d\n", a-buf1.begin(), b-buf1.begin()); // >>> // got: 2, 2 // expected: 0, 2 } { buf_type buf2(1024); buf_type::iterator c; buf_type::iterator d; c = buf2.begin(); buf2.push_back(1); buf2.push_back(2); d = buf2.begin(); printf ("%d\n", c == d); // >>> // got: 0 // expected: 1 // (i.e. "begin()" is not still pointing to first item!! // This is incorrect, isn't it?) printf ("%d, %d\n", buf2.end()-c, buf2.end()-d); // >>> // got: 0, 2 // expected: 2, 2 } return 0; } Thanks, David

1 0

boost::multi_array SWIG binding
by NJ Duncan 10 Jun '09

10 Jun '09

Hi all, I'm fairly new to C++ and learning as I go, but there is very little info out there on my particular problem. I am trying to turn a model I've written in C++ into a python module using SWIG. The main problems I'm having are initializing Boost multiarray containers then getting data into and out of them. Here is some sample code: #include <iostream> #include <vector> #include <algorithm> #include "boost/multi_array.hpp" typedef boost::multi_array<double,2> array_typef; typedef boost::multi_array<int,2> array_typei; class G2G_hydro_model { public: array_typei A; array_typef S; G2G_hydro_model(int A_ncols,int A_nrows,int S_ncols,int S_nrows):, A(boost::extents[A_ncols][A_nrows]), S(boost::extents[S_ncols][S_nrows]) {}; ~G2G_hydro_model(void) {}; void read_floating(int x, int y, array_typef& data, double& element); void write_floating(int x, int y, array_typef& data, double& element); void write_integer(int x, int y, array_typei& data, int& element); void functions_to_do_stuff(array_typef&,array_typei&) }; void G2G_hydro_model::read_floating(int x, int y, array_typef data, double element) {element = data[x][y];} void G2G_hydro_model::write_floating(int x, int y, double element, array_typef data) {data[x][y] = element;} void G2G_hydro_model::write_integer(int x, int y, int element, array_typei data) {data[x][y] = element;} Code is pushed through SWIG to create bindings, then compiled as a linked library. Compiles ok with no warnings and Python accepts the module. But when I try to use with Python code like this: import sys import numpy as np import G2G h = G2G4.G2G_hydro_model(A.cols,A.nrows,S.cols,S.rows) element = 9 for x in range(0,A.cols) for y in range(0,A.rows) h.write_integer(x, y, element, h.A) Unfortunately I get the following error message: python: /usr/include/boost/multi_array/multi_array_ref.hpp:481: boost::multi_array_ref<T, NumDims>& boost::multi_array_ref<T, NumDims>::operator=(const ConstMultiArray&) [with ConstMultiArray = boost::multi_array<double, 2ul, std::allocator<double> >, T = double, long unsigned int NumDims = 2ul]: Assertion `std::equal(other.shape(), other.shape()+this->num_dimensions(), this->shape())' failed. I think I have assigned the array extents incorrectly, but I'm not sure of the proper way to do this as part of a C++ class. Any ideas, I'm starting to pull my hair out, I hope there is a simple answer. Many Thanks Niall -- __________________________________________________________________ Niall Duncan, Postgraduate Student Institute for Energy Systems, School of Engineering and Electronics The University of Edinburgh www.see.ed.ac.uk -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.

2 1

[Intrusive] safe_link assertion with list
by Pearl Rothman 10 Jun '09

10 Jun '09

I am using Fedora 9, gcc 4.3.0, and boost 1.38.0. I get the following error when calling the destroyMessage function. boost/intrusive/detail/utilities.hpp:421: void boost::intrusive::detail::destructor_impl(Hook&, boost::intrusive::detail::link_dispatch<safe_link>) [with Hook = boost::intrusive::detail::generic_hook<boost::intrusive::get_list_node_algo<void*>, boost::intrusive::default_tag, safe_link, 1>]: Assertion `!hook.is_linked()' failed. class MessageHook : public boost::intrusive::list_base_hook<>{ public: MessageHook(Message* msg) : m_msg(msg) {}; Message* GetMsg() { return m_msg; } private: Message* m_msg; }; class MessageFactory { public: MessageFactory() { } ~MessageFactory() { } ... virtual void destroyMessage( Message* msg ) { MessageHook hook(msg); m_message_list.push_back( hook ); } private: boost::intrusive::list<stockTraderMessageHook> m_message_list; }; Thanks

3 3

[Boost.Graph]: read_graphviz into std::vector
by Sascha Winter 10 Jun '09

10 Jun '09

Hi, I have graphes in the .dot format, with 24 vertex labels d1-d24, each storing one double. I want to use struct Vertex_p { std::string node_id; std::vector<double> d; } as the bundled property for my graph in boost and use read_graphviz to load the graph. How do I have to construct the property_map and the dynamic_properties? This property_map<graph_t, vector<double> Vertex_p::*>::type g_d = get(&Vertex_p::d, graph); g_dp.property("d",g_d); does not work. Is it even possible to do something like this? Thanks for any help, Sascha

2 1

Problem in returning value from DFS vistor class.
by Amanullah Yasin 10 Jun '09

10 Jun '09

Bonjour,Dear all I am facing general programming related logical error. I want to access bolean variable of the class by using get method. but it is not giving the right result. When i read the counter and boolean variable by getcount() and isPathExist() methods. Each time it returns "0" for counter and false for boolean. My code is below #include "AlgoPC.h"#include <boost/graph/depth_first_search.hpp> //=============================Depth First Search===========================class DFSVisitor: public default_dfs_visitor {protected: slBayesianNetwork *pBN; int nodeA, nodeC; bool exist; int counter; public: DFSVisitor(slBayesianNetwork *pBN, int nodeA, int nodeC); ~DFSVisitor(); void discover_vertex(slNode u, const slGraph &g); void resetCounter(); bool isPathExist(); int getCounter(); };//-------------------------------------------------------------------------- DFSVisitor::DFSVisitor(slBayesianNetwork *pBN, int nodeA, int nodeC) { this->pBN = pBN; this->nodeA = nodeA; this->nodeC = nodeC; this->exist = false; this->resetCounter(); }//-------------------------------------------------------------------------- DFSVisitor::~DFSVisitor() { }//--------------------------------------------------------------------------void DFSVisitor::resetCounter() { this->counter = 0; }//-------------------------------------------------------------------------- //--------------------------------------------------------------------------void DFSVisitor::discover_vertex(slNode u, const slGraph &g) { this->counter++; unsigned int varIdx = this->pBN->getVariableIndex(u); if ((varIdx == this->nodeC ) && ((this->counter) > 2)) { this->exist = true; cout<<"\n "<<counter<<" node = "<< varIdx+1; } }//--------------------------------------------------------------------------int DFSVisitor::getCounter() { return this->counter; }//--------------------------------------------------------------------------bool DFSVisitor::isPathExist() { return this->exist; } ====================== main program ======================= cout<< "\n a = "<<a<<" c = "<<c; DFSVisitor vis(this->pBN, a , c); depth_first_search((slGraph&)this->pBN->get_graph(),visitor(vis).root_vertex(vertex(a, this->pBN->get_graph()))); cout<<"\n counter is = "<<vis.getCounter()<<" Path exist = "<< vis.isPathExist(); ======================== out put ========================= counter is = 0 path exist = 0 (false) ------------------------------------------------------- I will be thankful to you for guiding me. Best Regards Amanullah YASIN Master2 (ECD) Ecole Polytechnique Université de Nantes, France. Mob# 06 47 62 89 96 Fix # 02 72 00 26 45 amanyasin(a)gmail.com

2 1

Obtaining base class type
by Robert Dailey 09 Jun '09

09 Jun '09

Hey everyone, I'm using wxWidgets, and as you all may know they have a silly macro used to define an event table... BEGIN_EVENT_TABLE( MainWindow, wxFrame ) EVT_CLOSE( MainWindow::OnClose ) END_EVENT_TABLE() I spend a few hours finding out that wxFrame is the incorrect parameter for parameter #2. This is not the base class that MainWindow derives from. There was no compiler error or warning, nor any errors during runtime. Only weird behavior because events were getting skipped. Because of this error-proneness, I'm looking for a way to have boost help me out with this. I'm looking for a metafunction in Boost that can be used to obtain (at compile time) the base type of MainWindow. For example: BEGIN_EVENT_TABLE( MainWindow, boost::get_base_of<MainWindow>::type ) EVT_CLOSE( MainWindow::OnClose ) END_EVENT_TABLE() Something like that above. I know that type traits has is_base_of, and I'm hoping there is a get version of that too. I've browsed through the reference but I've found nothing helpful.

3 4

assignment operator could not be generated
by Zachary Turner 09 Jun '09

09 Jun '09

When building a project that uses boost on Windows under MSVC 9.0 (VS 2008), I get _tons_ of warnings for "assignment operator could not be generated" all throughout the code. Is this going to cause subtle errors when I run the code, or are the warnings harmless ones that can be disabled with pragmas? One example where I get lots of "assignment operator could not be generated" spam is in boost::detail::addr_impl_ref<T> when I try to use boost::bind. But there are many other places as well. I can produce an explicit sample if requested, but since it happens so frequently and I haven't done anything special AFAIK to make it happen, I suspect someone else will immediately know what I'm talking about.

2 1

[Boost.Test] BOOST_FAIL vs BOOST_ERROR
by Greg Christopher 09 Jun '09

09 Jun '09

Hi, I'm new to Boost testing and I am looking to distinguish whether boost.test has a certain facility. It is clear from the documentation that BOOST_FAIL reports a problem and then quits, whereas BOOST_ERROR reports a problem then continues. My chief concern right now is how problems are reported actually- not control flow. I am wondering if boost.test has a facility to signal that something is wrong with the testware itself (not the software under test) . For instance, a reporting entry point that says "this is an exceptional condition and not the detection of a software bug". I think that _both_ BOOST_FAIL (or BOOST_REQUIRE) and BOOST_ERROR (or BOOST_CHECK) do indicate that there is a software under test failure (bug properly detected by testware). I'd like to hear I'm wrong or that there is another way to signal a testware failure. I suppose that I can use fixture support to attempt to notice any exceptional problems during setup so that I don't even get to the test execution code when there is an exceptional condition or environment problem. However, I'd like to try to wrap my head around the capabilities of the system and understand them as best as I can before proceeding. Thanks in advance for any help. Greg Christopher

2 13

Boost with Eclipse and MinGW
by Bassem Bouguerra 09 Jun '09

09 Jun '09

Hi- Running the simple code with Boost Header libraries works perfectly fine. If I try to use any compiled library, then I run to hell. I am trying to use the thread library and I keep getting compiling errors like: undefined reference to boost::thread::!thread() I installed the package and selected VS8 even though, I am using Eclipse and I added the "C:\Program Files (x86)\boost\boost_1_38\lib" to the linker search libraries paths. -- -- Cheers -- -- Cheers

3 2

Expand tuple values as callable arguments
by Dominique Devienne 09 Jun '09

09 Jun '09

Given a boost::tuple<A,B,C> abc; is there a boost facility that allows to "expand" abc into its a, b, c values to pass to a callable (actual function T f(A,B,C), boost::function<T(A,B,C)>, fusion callables, etc...)? If so, would implicit conversions allowed and performed during a real call also happen using that facility? And if the "callable" is a constructor, is there a way to call a constructor? Thanks, --DD PS: Our app is plugin based and heavily uses factories in the base framework, but these are polymorphic and thus void* based in the base abstract factory class, and relied on default construction only. I've introduced non-default construction, and additional type safety, but it's still clunky and I'm exploring ways to provide a fully type safe plugeable factory mechanism, with static-based dynamic-registration on shared lib loading (when plugins are loaded), the ability to construct name-registered types with arbitrary args. A base type must support creation by more than one factory, taking different args (but a particular concrete type may choose to support only a subset of the factories its base type supports.) Any factory lib out there you know that fits the above description?

3 3

[Bind] Placeholder scope
by Robert Jones 09 Jun '09

09 Jun '09

I have just spent several hours digging out a compile problem which turned out to be a conflict between Boost.Bind and Boost.Lambda, which seems to arise because the Boost.Bind placeholders (_1, etc.) are in the global namespace, so if "using namespace boost::lambda;" is in effect the Bind placeholder is used rather than the Lambda placeholder. I wonder why the Bind placeholders are in the global namespace? Thanks, Rob.

6 8

Access function parameter types as mpl sequence?
by Dave Bonora 09 Jun '09

09 Jun '09

Does boost contain a utility that can generate an mpl sequence populated with the parameter types of a given function? I'm hoping to avoid the pains of implementing the functionality myself. For instance, given the function: void Func( int, const char* ); I could generate and access an mpl::vector sequence: mpl::vector<int, const char*> Thanks!

4 3

Does anyone know how to detect image offset?
by blp330 09 Jun '09

09 Jun '09

Hi, I have two images: http://mercurius.f-snet.com/offset1.png http://mercurius.f-snet.com/offset1.png http://mercurius.f-snet.com/offset2.png http://mercurius.f-snet.com/offset2.png They are the same in visually by eyes, but actually they are different because of margin. Does anyone know any algorithm or way to compare these two images but ignores the offset of images? (I mean, offset2.png can be treated like offset1.png + n pixels offset, it only moved, not changed.) If I do boost::gil::equal_pixels(offset1, offset2), I will get false because they are different. I need a way to compare offset1.png and offset2.png with moving detection. Any suggestion is welcome! Thanks. -- View this message in context: http://www.nabble.com/Does-anyone-know-how-to-detect-image-offset--tp239133… Sent from the Boost - Users mailing list archive at Nabble.com.

6 11

shared_ptr and && operator
by Robert Dailey 09 Jun '09

09 Jun '09

Hey guys, Just wondering what happens if I do this: boost::shared_ptr<Foo> foo; boost::shared_ptr<Bar> bar; if( foo && bar ) { // Do stuff if both pointers are valid... } I did not see an overloaded && operator in the interface of the class. When using normal pointer semantics, this code is valid through implicit conversion of a pointer value to a boolean type.

4 5

[BGL] how to get corresponding descriptors in a copyed graph?
by Li Ning 09 Jun '09

09 Jun '09

I get edges sequence on graph1, now I copy graph1 to graph2 (value copy). How to get the corresponding edge descriptor that belong to graph2? If I use edge descriptor that belong to graph1 in graph2, that will has problems. Is there simple way to do it? -- View this message in context: http://www.nabble.com/-BGL--how-to-get-corresponding-descriptors-in-a-copye… Sent from the Boost - Users mailing list archive at Nabble.com.

1 0

Problem with Serialization in Boost 1.37
by Christoph Mayer 08 Jun '09

08 Jun '09

Hi, when using Boost v1.37 I get a problem with the serialization library that did not appear before. The following linker error occurs: > undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' The error does not appear when I omit the class registration using BOOST_CLASS_EXPORT_GUID. As far as I understand the error, the linker can't find the d'tor for the singleton where the classes get registered. Below you can find the complete linker output. Any help is appreciated, Chris libtool: link: g++ -g -O2 -rdynamic -o distack distack-Distack.o base/Timer.o base/SubnetCounterTree.o base/GenericRoutingTable.o messages/MessageAddressDistribution.o -lboost_thread-gcc43-mt -lboost_serialization-gcc43-mt -lboost_signals-gcc43-mt -lboost_system-gcc43-mt -L/simfs/users/gamer/distack_sabine/libs/lib base/libbase.a messages/libmessage.a /usr/lib/libltdl.so -ldl -lxerces-c -lpcap -lpthread base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost::a rchive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer> >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_oserializerINS4_26polymorphic_oarchive_r outeINS3_20binary_oarchive_implINS3_15binary_oarchiveEcSt11char_traitsIcEEEE E12MessageTimerEEED0Ev[boost::serialization::detail::singleton_wrapper<boost ::archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_o archive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oa rchive, char, std::char_traits<char> > >, MessageTimer> > >::~singleton_wrapper()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost::a rchive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer> >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_oserializerINS4_26polymorphic_oarchive_r outeINS3_20binary_oarchive_implINS3_15binary_oarchiveEcSt11char_traitsIcEEEE E12MessageTimerEEED1Ev[boost::serialization::detail::singleton_wrapper<boost ::archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_o archive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oa rchive, char, std::char_traits<char> > >, MessageTimer> > >::~singleton_wrapper()]+0x19): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageTimer>::~pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerED0Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::~pointer_oserializer()]+0x13): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageTimer>::~pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerED1Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::~pointer_oserializer()]+0xf): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost::a rchive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAggregateIntervalValues> > >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_oserializerINS4_26polymorphic_oarchive_r outeINS3_20binary_oarchive_implINS3_15binary_oarchiveEcSt11char_traitsIcEEEE E30MessageAggregateIntervalValuesEEED0Ev[boost::serialization::detail::singl eton_wrapper<boost::archive::detail::pointer_oserializer<boost::archive::det ail::polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost:: archive::binary_oarchive, char, std::char_traits<char> > >, MessageAggregateIntervalValues> >::~singleton_wrapper()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o):RemoteMessagingSystem.cpp:(.text._ZN 5boost13serialization6detail17singleton_wrapperINS_7archive6detail19pointer_ oserializerINS4_26polymorphic_oarchive_routeINS3_20binary_oarchive_implINS3_ 15binary_oarchiveEcSt11char_traitsIcEEEEE30MessageAggregateIntervalValuesEEE D1Ev[boost::serialization::detail::singleton_wrapper<boost::archive::detail: :pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boos t::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAggregateIntervalValues> > >::~singleton_wrapper()]+0x19): more undefined references to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' follow base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer> > >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_iserializerINS3_27polymorphic_binary_iar chiveE12MessageTimerEEED0Ev[boost::serialization::detail::singleton_wrapper< boost::archive::detail::pointer_iserializer<boost::archive::polymorphic_bina ry_iarchive, MessageTimer> >::~singleton_wrapper()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer> > >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_iserializerINS3_27polymorphic_binary_iar chiveE12MessageTimerEEED1Ev[boost::serialization::detail::singleton_wrapper< boost::archive::detail::pointer_iserializer<boost::archive::polymorphic_bina ry_iarchive, MessageTimer> >::~singleton_wrapper()]+0x19): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_iserializer<boost::archive::polymorphic_bin ary_iarchive, MessageTimer>::~pointer_iserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_iserializ erINS0_27polymorphic_binary_iarchiveE12MessageTimerED0Ev[boost::archive::det ail::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer>::~pointer_iserializer()]+0x13): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_iserializer<boost::archive::polymorphic_bin ary_iarchive, MessageTimer>::~pointer_iserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_iserializ erINS0_27polymorphic_binary_iarchiveE12MessageTimerED1Ev[boost::archive::det ail::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer>::~pointer_iserializer()]+0xf): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::detail::singleton_wrapper<boost::archive::detail::poi nter_iserializer<boost::archive::polymorphic_binary_iarchive, MessageAggregateIntervalValues> >::~singleton_wrapper()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization6detail17singleton_ wrapperINS_7archive6detail19pointer_iserializerINS3_27polymorphic_binary_iar chiveE30MessageAggregateIntervalValuesEEED0Ev[boost::serialization::detail:: singleton_wrapper<boost::archive::detail::pointer_iserializer<boost::archive ::polymorphic_binary_iarchive, MessageAggregateIntervalValues> > >::~singleton_wrapper()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o):RemoteMessagingSystem.cpp:(.text._ZN 5boost13serialization6detail17singleton_wrapperINS_7archive6detail19pointer_ iserializerINS3_27polymorphic_binary_iarchiveE30MessageAggregateIntervalValu esEEED1Ev[boost::serialization::detail::singleton_wrapper<boost::archive::de tail::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageAggregateIntervalValues> >::~singleton_wrapper()]+0x19): more undefined references to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' follow base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE27MessageAggregateWatchValuesEC2Ev[boost::ar chive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarch ive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchi ve, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE27MessageAggregateWatchValuesEC2Ev[boost::ar chive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarch ive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchi ve, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageLastSuspiciousAggregateEC1Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageLastSuspiciousAggregateEC1Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerEC1Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerEC1Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageAggregateIntervalValuesEC2Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageAggregateIntervalValuesEC2Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageAlertEC2Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageAlertEC2Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE22MessageLastAnomalyTypeEC1Ev[boost::archive ::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarchive_r oute<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()]+0x1d): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE22MessageLastAnomalyTypeEC1Ev[boost::archive ::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarchive_r oute<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()]+0x7a): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageAggregateWatchValues> > >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE27MessageA ggregateWatchValuesEEE12get_instanceEv[boost::serialization::singleton<boost ::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary_ia rchive, MessageAggregateWatchValues> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE27MessageA ggregateWatchValuesEEE12get_instanceEv[boost::serialization::singleton<boost ::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary_ia rchive, MessageAggregateWatchValues> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageTimer> > >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE12MessageT imerEEE12get_instanceEv[boost::serialization::singleton<boost::archive::deta il::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE12MessageT imerEEE12get_instanceEv[boost::serialization::singleton<boost::archive::deta il::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageTimer> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageAlert> > >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE12MessageA lertEEE12get_instanceEv[boost::serialization::singleton<boost::archive::deta il::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageAlert> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE12MessageA lertEEE12get_instanceEv[boost::serialization::singleton<boost::archive::deta il::pointer_iserializer<boost::archive::polymorphic_binary_iarchive, MessageAlert> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageLastAnomalyType> > >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE22MessageL astAnomalyTypeEEE12get_instanceEv[boost::serialization::singleton<boost::arc hive::detail::pointer_iserializer<boost::archive::polymorphic_binary_iarchiv e, MessageLastAnomalyType> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE22MessageL astAnomalyTypeEEE12get_instanceEv[boost::serialization::singleton<boost::arc hive::detail::pointer_iserializer<boost::archive::polymorphic_binary_iarchiv e, MessageLastAnomalyType> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageLastSuspiciousAggregate> >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE30MessageL astSuspiciousAggregateEEE12get_instanceEv[boost::serialization::singleton<bo ost::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary _iarchive, MessageLastSuspiciousAggregate> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE30MessageL astSuspiciousAggregateEEE12get_instanceEv[boost::serialization::singleton<bo ost::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary _iarchive, MessageLastSuspiciousAggregate> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::serialization::singleton<boost::archive::detail::pointer_iserializer <boost::archive::polymorphic_binary_iarchive, MessageAggregateIntervalValues> >::get_instance()': RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE30MessageA ggregateIntervalValuesEEE12get_instanceEv[boost::serialization::singleton<bo ost::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary _iarchive, MessageAggregateIntervalValues> >::get_instance()]+0x6f): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::archive_pointer_iserializer(boost::serialization::ext ended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost13serialization9singletonINS_7arch ive6detail19pointer_iserializerINS2_27polymorphic_binary_iarchiveE30MessageA ggregateIntervalValuesEEE12get_instanceEv[boost::serialization::singleton<bo ost::archive::detail::pointer_iserializer<boost::archive::polymorphic_binary _iarchive, MessageAggregateIntervalValues> >::get_instance()]+0xe3): undefined reference to `boost::archive::detail::archive_pointer_iserializer<boost::archive::polymor phic_binary_iarchive>::~archive_pointer_iserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageLastSuspiciousAggregateEC2Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageLastSuspiciousAggregateEC2Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageLastSuspiciousAggregate>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE27MessageAggregateWatchValuesEC1Ev[boost::ar chive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarch ive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchi ve, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE27MessageAggregateWatchValuesEC1Ev[boost::ar chive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarch ive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchi ve, char, std::char_traits<char> > >, MessageAggregateWatchValues>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageAlertEC1Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageAlertEC1Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageAlert>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerEC2Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE12MessageTimerEC2Ev[boost::archive::detail:: pointer_oserializer<boost::archive::detail::polymorphic_oarchive_route<boost ::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageTimer>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageAggregateIntervalValuesEC1Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE30MessageAggregateIntervalValuesEC1Ev[boost: :archive::detail::pointer_oserializer<boost::archive::detail::polymorphic_oa rchive_route<boost::archive::binary_oarchive_impl<boost::archive::binary_oar chive, char, std::char_traits<char> > >, MessageAggregateIntervalValues>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' base/libbase.a(RemoteMessagingSystem.o): In function `boost::archive::detail::pointer_oserializer<boost::archive::detail::polymor phic_oarchive_route<boost::archive::binary_oarchive_impl<boost::archive::bin ary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()': RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE22MessageLastAnomalyTypeEC2Ev[boost::archive ::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarchive_r oute<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()]+0x22): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::archive_pointer_oserializer(boost::serialization::extended_type_info const&)' RemoteMessagingSystem.cpp:(.text._ZN5boost7archive6detail19pointer_oserializ erINS1_26polymorphic_oarchive_routeINS0_20binary_oarchive_implINS0_15binary_ oarchiveEcSt11char_traitsIcEEEEE22MessageLastAnomalyTypeEC2Ev[boost::archive ::detail::pointer_oserializer<boost::archive::detail::polymorphic_oarchive_r oute<boost::archive::binary_oarchive_impl<boost::archive::binary_oarchive, char, std::char_traits<char> > >, MessageLastAnomalyType>::pointer_oserializer()]+0x11e): undefined reference to `boost::archive::detail::archive_pointer_oserializer<boost::archive::detail: :polymorphic_oarchive_route<boost::archive::binary_oarchive_impl<boost::arch ive::binary_oarchive, char, std::char_traits<char> > > > >::~archive_pointer_oserializer()' collect2: ld returned 1 exit status make[2]: *** [distack] Fehler 1 make[2]: Verlasse Verzeichnis '/simfs/users/gamer/distack_sabine/src' make[1]: *** [all-recursive] Fehler 1 make[1]: Verlasse Verzeichnis '/simfs/users/gamer/distack_sabine/src' make: *** [all-recursive] Fehler 1

4 20

[BGL] What is filtered_graph really doing?
by Lindley M French 08 Jun '09

08 Jun '09

My edge properties struct has a bool "on" member. At times I may want to change whether an edge is on or not, and then I want to generate filtered_graphs that contain only the on or off edges for use with BGL algorithms. However, it doesn't seem to be working. If I do: func(Graph &G) { filtered_graph<Graph> F1(G,OnEdges(G)); // iterate over the edges of F1 and print them out // Now iterate over the edges of G and turn some of them off, printing out which ones filtered_graph<Graph> F2(G,OnEdges(G)); // iterator over the edges of F2 and print them out } then I end up getting the exact same set of edges from F1 and F2! F2 even shows the edges I turned off in between. What exactly is filtered_graph doing that this is possible? Related question: If I have a filtered_graph of on edges, and I turn one of them off *through* it, what happens?

1 0

Bug Sprint Final Report
by Marshall Clow 08 Jun '09

08 Jun '09

The boost bug sprint started Friday, May 29th, and ended Sunday June 7th. Thank you to everyone who participated! Just because the bug sprint is over, that doesn't mean you can't fix bugs! ;-) Here's a day by day status: Status <https://svn.boost.org/trac/boost/report/1> 7:00 AM PDT 5/29: 797 open tickets. 7:45 AM PDT 5/30: 772 open tickets. 6:00 AM PDT 5/31: 761 open tickets. 6:00 AM PDT 6/2: 747 open tickets. 6:00 AM PDT 6/3: 748 open tickets. 6:00 AM PDT 6/4: 739 open tickets. 8:00 AM PDT 6/5: 730 open tickets. 7:00 AM PDT 6/6: 719 open tickets. 7:00 AM PDT 6/7: 706 open tickets. 7:00 AM PDT 6/8: 710 open tickets (oops!) Activity: 5/29: 6 new tickets, 77 modifications, 25 tickets closed 5/30: 2 new tickets, 42 modifications, 17 tickets closed 5/31: 2 new tickets, 27 modifications, 8 tickets closed 6/1: 2 new tickets, 42 modifications, 17 tickets closed 6/2: 5 new tickets, 18 modifications, 5 tickets closed. 6/3: 4 new tickets, 19 modifications, 2 tickets closed. 6/4: 3 new tickets, 42 modifications, 24 tickets closed. 6/5: 3 new tickets, 35 modifications, 8 tickets closed. 6/6: 4 new tickets, 61 modifications, 29 tickets closed. 6/7: 1 new ticket, 20 modifications, 4 tickets closed. [ Numbers may not add up because I am counting via two different methods, using data that is time-stamped in two different time zones. Also, tickets can be closed and reopened. ] -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

2 1

[Serialization] Stack Overflow on exit in 1.39.0: patch possibly available?
by Enrico Carrara 08 Jun '09

08 Jun '09

Hello, As others did (see http://lists.boost.org/boost-users/2009/05/48047.php) I had the problem of stack overflow on program exit while using BOOST_CLASS_EXPORT with version 1.39.0, probably due to an error in void_caster.cpp. Is it possible to have a patch for it before delivery of next version and how? Thanks in advance, eca

3 4

string_algo and vector
by gast128 08 Jun '09

08 Jun '09

Dear all, the documetnation was alittle bit vague about the use of other sequences with string_algo. However I would expect that a vector and a string have many similarities, but still I got a crash when using a vector (with Visual Studio 2003, Boost 1.36): void Foo() { //crashes with vector: std::vector<int> v1 = boost::assign::list_of(1)(3)(5)(7)(9); std::vector<int> v2 = boost::assign::list_of(3)(5); boost::algorithm::erase_range(v1, v2); _ASSERT(v1.size() == 3); //crash in detructor of v2 when leaving scope } anyone idea? wkr, me

1 2

[BGL] problem about copy graph
by Li Ning 08 Jun '09

08 Jun '09

typedef adjacency_list<vecS, vecS, undirectedS, no_property, edge_ex> graph_t; typedef graph_traits<graph_t>::vertex_descriptor vertex_t; typedef graph_traits<graph_t>::edge_descriptor edge_t; struct edge_ex { //int index; bw_t az_capacity; bw_t za_capacity; int cost; vertex_t fake_source; }; // init a graph g and assign edge_ex values, and get a std::pair<edge_t, bool> r when add_edge(5,6,g); graph_t g2 = g; std::pair<edge_t, bool> rr = edge(5,6,g2); g2[rr.first].cost = 1000; std::cout<<g[r.first].cost<<" "<<g2[r.first].cost<<" "<<g2[rr.first]; //output is: old_value old_value 1000 WHY?? It seems a bug, g2[r.first] should be 1000 rather than the value assign to g even r.first is a descriptor that belongs to g OK, this is problematic usage, but... g2[r.first] works, it doesn't make sense. -- View this message in context: http://www.nabble.com/-BGL--problem-about-copy-graph-tp23921384p23921384.ht… Sent from the Boost - Users mailing list archive at Nabble.com.

1 1

[system] Link error using __stdcall
by Daniele Barzotti 08 Jun '09

08 Jun '09

I'm using VC2008 to build a library which uses boost::system. This library is then used in a COM DLL. When I build the COM DLL in 'Release mode' I get these link errors: ----------------------------------------- EuroATLib.lib(EuroATLib.obj) : error LNK2001: unresolved external symbol "class boost::system::error_category const & __stdcall boost::system::get_system_category(void)" (?get_system_category@system@boost@@YGABVerror_category@12@XZ) EuroATLib.lib(EuroATLib.obj) : error LNK2001: unresolved external symbol "class boost::system::error_category const & __stdcall boost::system::get_generic_category(void)" (?get_generic_category@system@boost@@YGABVerror_category@12@XZ) EuroATLib.lib(ATDispatcher.obj) : error LNK2001: unresolved external symbol "bool __stdcall boost::this_thread::interruptible_wait(void *,struct boost::detail::timeout)" (?interruptible_wait@this_thread@boost@@YG_NPAXUtimeout@detail@2@@Z) ----------------------------------------- I think the problem is in the calling convention that in COM is __stdcall while the boost::system uses __cdecl. What I don't understand is why when I build the COM DLL in 'Debug mode' it works! I've checked the VC linker settings and it seems ok. Any suggestions? Thanks, Daniele.

2 2

[thread] thread_specific_ptr is not initialized with NULL
by Michael Gopshtein 08 Jun '09

08 Jun '09

Hi, As I understand from documentation, once thread_specific_ptr is created, first call to get() should return NULL in all threads. Actually sometimes it doesn't happen. Consider the following scenario: 1) thread T1 initializes some global tss object (by doing "new" on global thread_specific_ptr<>*) 2) thread T2 tries to read the value with get(), and gets null. It sets a correct value (unsigned int 42) 3) thread T1 deletes tss object, and allocates a new one instead. 4) thread T2 tries to read the value from the new object So I expected that in (4) thread T2 will get NULL again. Actually, when new object created in (3) is created in same memory location, T2 gets the original value in (4), and not NULL. When new pointer allocated in (3) is different, T2 gets NULL as expected (verified using "placement new" to control location of the tss object). Is it a bug or inpropriate use pattern? The code that demonstrates the issue is listed below (please ignore synchronization issues) - note the line with a comment: when I do "new (buf2) ..." instead, it works as expected. Thanks, Michael ====================================== #include <boost/thread/tss.hpp> #include <boost/thread.hpp> #include <unistd.h> #include <iostream> using namespace std; boost::thread_specific_ptr<unsigned long> *pptr = NULL; char buf1[sizeof(boost::thread_specific_ptr<unsigned long>)]; char buf2[sizeof(boost::thread_specific_ptr<unsigned long>)]; void do1() { cout << "Creating TLS index\n"; pptr = new (buf1) boost::thread_specific_ptr<unsigned long>; sleep(5); cout << "Replacing TLD index\n"; pptr->~thread_specific_ptr(); pptr = new (buf1) boost::thread_specific_ptr<unsigned long>; // HERE WE CAN ALLOCATE IN buf1 OR buf2 } void printval() { unsigned long * val = pptr->get(); if (val == NULL) { cout << "Got NULL value\n"; val = new unsigned long(42); pptr->reset(val); } else { cout << "Got value: " << *val << endl; } } void do2() { for (int i = 0; i < 4; i++) { sleep(2); printval(); } } int main(int argc, char *argv[]) { cout << "size " << sizeof(boost::thread_specific_ptr<unsigned long>) << endl; boost::thread t1(do1); boost::thread t2(do2); t1.join(); t2.join(); return 0; } ============================ OUTPUT: Creating TLS index Got NULL value Got value: 42 Replacing TLD index Got value: 42 Got value: 42

2 3

Re : [GUID] newbie's question
by bidi_bulle＠yahoo.com 08 Jun '09

08 Jun '09

> Did you mean the UUID library? Thanks for your answer but I was really talking the GUID library Please look at this post to better see which library I am talking of: http://www.nabble.com/-Review--The-review-of-the-Boost.Guid-library-starts-…

5 4

Bug Sprint Report for Friday, June 5th
by Marshall Clow 07 Jun '09

07 Jun '09

The boost bug sprint started Friday, May 29th, and runs through Sunday June 7th. Today is the last day! Can we get under 700 open tickets? Status <https://svn.boost.org/trac/boost/report/1> 7:00 AM PDT 5/29: 797 open tickets. 7:45 AM PDT 5/30: 772 open tickets. 6:00 AM PDT 5/31: 761 open tickets. 6:00 AM PDT 6/2: 747 open tickets. 6:00 AM PDT 6/3: 748 open tickets. 6:00 AM PDT 6/4: 739 open tickets. 8:00 AM PDT 6/5: 730 open tickets. 7:00 AM PDT 6/6: 719 open tickets. 7:00 AM PDT 6/7: 706 open tickets. Activity: 5/29: 6 new tickets, 77 modifications, 25 tickets closed 5/30: 2 new tickets, 42 modifications, 17 tickets closed 5/31: 2 new tickets, 27 modifications, 8 tickets closed 6/1: 2 new tickets, 42 modifications, 17 tickets closed 6/2: 5 new tickets, 18 modifications, 5 tickets closed. 6/3: 4 new tickets, 19 modifications, 2 tickets closed. 6/4: 3 new tickets, 42 modifications, 24 tickets closed. 6/5: 3 new tickets, 35 modifications, 8 tickets closed. 6/6: 4 new tickets, 61 modifications, 29 tickets closed. [ Numbers may not add up because I am counting via two different methods, using data that is time-stamped in two different time zones. Also, tickets can be closed and reopened. ] What can you do? See <https://svn.boost.org/trac/boost/wiki/BugSprintJune2009> for details. I've added four new reports to the trac: Open ticket count by owner: <https://svn.boost.org/trac/boost/report/18> Open ticket count by component: <https://svn.boost.org/trac/boost/report/19> Open ticket count by ticket type: <https://svn.boost.org/trac/boost/report/20> Open ticket count by milestone: <https://svn.boost.org/trac/boost/report/21> There's been a lot of discussion on the list about tickets; and there are about a dozen patches that have been tested and are ready to be applied. If you're looking to help, you can look at some of the older bugs, say, the ones for Boost 1.36, and determine if they still apply. If they do, note that in the ticket. There are 42 tickets that are still open that are marked as "to be fixed in Boost 1.36" See <https://svn.boost.org/trac/boost/report/3> for a list of open tickets by milestone. --------- Sign-up sheet -------- The following people have committed to participate in the bug sprint. Please add you name here, along with what you can do. 1) Marshall Clow (coordination, Mac OS X characterization) 2) Beman Dawes (filesystem, system, timer) 3) Doug Gregor (function, graph, logic, mpi, numeric, property_map, signals) 4) "joel falcou" <joel.falcou(a)u-psud.fr> ( linux gcc testing/VC 2008 testing, patching) 5) Michael Caisse <boost(a)objectmodelingdesigns.com> (bug fixing) 6) Jeremiah Willcock <jewillco(a)osl.iu.edu> (will test and commit graph patches) 7) David Abrahams (iterator, python) 8) Sohail Somani (patches for g++ 4.2.4) 9) Steven Watanabe <watanabesj(a)gmail.com> (bug fixes, como) 10) vicente.botet" <vicente.botet(a)wanadoo.fr> 11) Stjepan Rajko <stjepan.rajko(a)gmail.com> (fusion) 12) Daniel Wallin (parameter, ...) -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

1 0

CMake thoughts
by Robert Bielik 07 Jun '09

07 Jun '09

Hi, The preliminary CMake file in the distr. (1.38.0) is IMHO way, WAY too complex. It makes no sense to have each sublib as a separate project, and in all different flavors at that (debug/rel/mt/st). It seems as it is designed just to create the boost libraries, which in my view in a non-sensical approach of using CMake since boost is a library, not a standalone application. The CMake file should be designed for inclusion in user CMake hierarchies, so I'd like a much more simple variant akin towards this: project(boost) option(BOOST_BUILD_STATIC_LIBRARY "Build Boost as STATIC library" ON) set(BOOST_INCLUDED_LIBRARIES <list of all the sublibraries wanted/needed> ) # Collect all the files needed into variable BOOST_SOURCE_FILES using the # list from above file(GLOB ...) if (BOOST_BUILD_STATIC_LIBRARY) add_library(boost STATIC ${BOOST_SOURCE_FILES}) else (BOOST_BUILD_STATIC_LIBRARY) add_library(boost DYNAMIC ${BOOST_SOURCE_FILES}) endif (BOOST_BUILD_STATIC_LIBRARY) This way I can easily incorporate boost into my own CMake hierarchy for creating my own projects and not clutter the workspace with hundreds of projects all with different settings. Just my 2 cents. Regards /Rob Ps. Haven't checked the list for a while, so apologies if I'm kicking in opened doors.

6 12

[BGL] clustering coefficient implementation
by Emre Guney 07 Jun '09

07 Jun '09

Greetings, After giving up for the first time approximately 1,5 year ago due to so to speak a bit discouraging documentation, for a couple of weeks I'm trying to work things out with BGL. I implemented a clustering coefficient calculation algorithm for graphs [ http://emreguney.googlepages.com/clustering_coefficient.hpp ] (only afterwards I discovered that Andrew Sutton has already implemented one waiting to be deployed). I would really appreciate any comments&suggestion about the code (quality, missing concept checks, consistency with genericity of BGL, ...). Although I thought, this implementation would not work on AdjacencyMatrix graphs, it works. Therefore, AdjacencyMatrix graphs do provide adjacent_vertices and out_edges methods. In the documentation (Graph Concepts page), however, I understand that AdjacencyMatrix Graph is a refinement of Graph (not IncidenceGraph or AdjacencyGraph) and do not provide such methods. Am I missing or misinterpreting something? Thanks, Emre

2 1

[BGL] dynamic_properties for graph attributes
by Paul Hilbert 07 Jun '09

07 Jun '09

The adjacency_list class constructor takes a property type for graph attributes. However I could not figure out how to create the appropriate dynamic_property map for graph attributes and - not surprisingly - this subtle detail is left out in the "documentation". Maybe someone can enlighten my path (and those of all people I found asking the same question without getting any responses). Greetings, Paul Hilbert

2 4

[Math/Statistical Distributions] Help on using distributions' global accessors
by Marco Guazzone 07 Jun '09

07 Jun '09

Dear Boost users, I don't understand why the code in the attached file "test_distributions_ko.zip" does not work. :( It compiles without problems, but as I run it I get the following error as soon as the *variance* accessor is called: --- [error] --- Running 2 test cases... ... unknown location(0): fatal error in "exponential_distribution": memory access violation at address: 0x7fffa6254ff8: no mapping at fault address test.cpp(34): last checkpoint *** 1 failure detected in test suite "test::stats test suite" --- [/error] --- I've also tried to replace the use of inheritance with the removal of class "exponential_distribution" and directly injecting inside my namespace the Boost one, that is: namespace test { namespace stats { using ::boost::math::exponential_distribution; using ::boost::math::exponential; }} but without success. Instead, the error *disappear* if I use the code in "test_distributions_ok.zip", where instead of using inheritance and "injection" I use membeship (i.e., composition). Why? My compiler is GCC 4.3.2 and my system is Fedora 10 x86_64. If you want to try the attached code you can simply type 'make' from your shell (provided you have a unix like system) and then run the command "./test". A note about the code: you may ask yourself why I'm redefining some functions already defined by the Boost library. The reason lies in the fact that my final goal is to create a wrapping library in order to change without pain the underlying real implementation. An help or a hint would be very very very appreciated!! :) Thank you very much! -- Marco

1 1

[shared pointer] - question about different types pointing to the same object
by Robert Ramey 06 Jun '09

06 Jun '09

I've looked through the shared_ptr documentation and am still puzzled about something. suppose I have class base1 { virtual ~base1; ... }; class derived1 : public base1 { .... }; shared_ptr<derived1> pd1(new derived1) shared_ptr<base1> pb1(pd); ? do pd1 and pb1 refer to the same object? class base2 { virtual ~base2; ... }; class derived3 : public base1, public base2 { ... }; shared_ptr<base2> pb2(pd1); ? do pb1 and pb2 refer to the same object? I'm presuming they do, but it's not really clear to me that this would work. To check this I could downcast everything to derived3. BUT when I have pb1 and pb2, I don't know what to downcast to. since there could be class derived4 : public base1, public base2 { ... }; So how could I verify whether an arbitrary pb1 and pb2 point to the same object or not? Robert Ramey

3 2

[BOOST] [TEST] Dumping the memory leak into Log File
by Suraj Gupta, Gurgaon 06 Jun '09

06 Jun '09

Hi All, Memory leak information is displayed onto the console window but I want to write the memory leak information in the log file I am creating? Could you please let me know how can I achieve this? Thanks Suraj DISCLAIMER: ----------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any mail and attachments please check them for viruses and defect. -----------------------------------------------------------------------------------------------------------------------

3 2

Bug Sprint Report for Friday, June 5th
by Marshall Clow 06 Jun '09

06 Jun '09

The boost bug sprint started Friday, May 29th, and runs through Sunday June 7th. We've only got two more days - keep up the good work! Status <https://svn.boost.org/trac/boost/report/1> 7:00 AM PDT 5/29: 797 open tickets. 7:45 AM PDT 5/30: 772 open tickets. 6:00 AM PDT 5/31: 761 open tickets. 6:00 AM PDT 6/2: 747 open tickets. 6:00 AM PDT 6/3: 748 open tickets. 6:00 AM PDT 6/4: 739 open tickets. 8:00 AM PDT 6/5: 730 open tickets. 7:00 AM PDT 6/6: 719 open tickets. Activity: 5/29: 6 new tickets, 77 modifications, 25 tickets closed 5/30: 2 new tickets, 42 modifications, 17 tickets closed 5/31: 2 new tickets, 27 modifications, 8 tickets closed 6/1: 2 new tickets, 42 modifications, 17 tickets closed 6/2: 5 new tickets, 18 modifications, 5 tickets closed. 6/3: 4 new tickets, 19 modifications, 2 tickets closed. 6/4: 3 new tickets, 42 modifications, 24 tickets closed. 6/5: 3 new tickets, 35 modifications, 8 tickets closed. [ Numbers may not add up because I am counting via two different methods, using data that is time-stamped in two different time zones. Also, tickets can be closed and reopened. ] What can you do? See <https://svn.boost.org/trac/boost/wiki/BugSprintJune2009> for details. I've added four new reports to the trac: Open ticket count by owner: <https://svn.boost.org/trac/boost/report/18> Open ticket count by component: <https://svn.boost.org/trac/boost/report/19> Open ticket count by ticket type: <https://svn.boost.org/trac/boost/report/20> Open ticket count by milestone: <https://svn.boost.org/trac/boost/report/21> There's been a lot of discussion on the list about tickets; and there are about a dozen patches that have been tested and are ready to be applied. If you're looking to help, you can look at some of the older bugs, say, the ones for Boost 1.36, and determine if they still apply. If they do, note that in the ticket. There are 35 tickets that are still open that are marked as "to be fixed in Boost 1.36" See <https://svn.boost.org/trac/boost/report/3> for a list of open tickets by milestone. --------- Sign-up sheet -------- The following people have committed to participate in the bug sprint. Please add you name here, along with what you can do. 1) Marshall Clow (coordination, Mac OS X characterization) 2) Beman Dawes (filesystem, system, timer) 3) Doug Gregor (function, graph, logic, mpi, numeric, property_map, signals) 4) "joel falcou" <joel.falcou(a)u-psud.fr> ( linux gcc testing/VC 2008 testing, patching) 5) Michael Caisse <boost(a)objectmodelingdesigns.com> (bug fixing) 6) Jeremiah Willcock <jewillco(a)osl.iu.edu> (will test and commit graph patches) 7) David Abrahams (iterator, python) 8) Sohail Somani (patches for g++ 4.2.4) 9) Steven Watanabe <watanabesj(a)gmail.com> (bug fixes, como) 10) vicente.botet" <vicente.botet(a)wanadoo.fr> 11) Stjepan Rajko <stjepan.rajko(a)gmail.com> (fusion) 12) Daniel Wallin (parameter, ...) -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

1 0

[boost.typeof] Using boost::bind with BOOST_AUTO
by Roberto Gim�nez 06 Jun '09

06 Jun '09

I have the following code: #include <boost/typeof/typeof.hpp> #include <boost/bind.hpp> void test() { } int main(int argc, char** argv) { BOOST_AUTO(a, boost::bind(&test)); } But when I try to compile, I get errors: CC -m64 -erroff=wvarhidemem,hidevf,hidevfinvb -errtags=yes -library=stlport4 -mt -c -g -I/home/gimenero/include -o build/Debug/Sun12-Solaris-Sparc/main.o main.cc CC -m64 -erroff=wvarhidemem,hidevf,hidevfinvb -errtags=yes -library=stlport4 -mt -c -g -I/home/gimenero/include -o build/Debug/Sun12-Solaris-Sparc/main.o main.cc "main.cc", line 11: Error, nomatchoverin: Could not find a match for boost::type_of::encode<boost::type_of::V, boost::type_of::T> (boost::_bi::bind_t<void, void(*)(), boost::_bi::list0>) needed in main(int, char**). "main.cc", line 11: Error, nomatchoverin: Could not find a match for boost::type_of::encode<boost::type_of::V, boost::type_of::T> (boost::_bi::bind_t<void, void(*)(), boost::_bi::list0>) needed in main(int, char**). "main.cc", line 11: Error, nomatchoverin: Could not find a match for boost::type_of::encode<boost::type_of::V, boost::type_of::T> (boost::_bi::bind_t<void, void(*)(), boost::_bi::list0>) needed in main(int, char**). ... many times. Does BOOST_AUTO supports boost::bind?

3 7

Does Boost.Test support std::wstring log messages?
by Tan, Tom (Shanghai) 06 Jun '09

06 Jun '09

Is it possible to use Boost.Test macros with std::wstring directly like this: BOOST_TEST_MESSAGE(L"test log"); ? I tried but it does not work. I find that \test\utils\basic_cstring\basic_cstring.hpp has a templated string implementation. It seems to imply that wide char are supported by Boost.Test. Can anyone please let me know how? Thanks. tom

2 1

[Boost] [Test] [1.38] "can't use testing tools before framework is initialized"
by Greg Christopher 06 Jun '09

06 Jun '09

Hi, I am trying to integrate boost.test into an existing test program with its own framework. Therefore I'd like to use that program's main. I am currently running into this runtime error when calling BOOST_WARN_MESSAGE(1, "string"). I have tried three different things to avoid this condition: 1) I declared a TEST_SUITE using the BOOST_AUTO_TEST_SUITE() and END() macros. Probably not what I want because I want my own main to keep control, but figured it would generate a main that would allow the initialization to happen. 2) I called init_unit_test_suite( argc, argv ). Even though it was called, I am still getting this. 3) I defined a cpp_main(). This never got called. I was hoping that the existence of this symbol would cause initialization to happen elsewhere. My desired control flow is to have this test program in control and to use the BOOST logging tools. I am trying to slip in boost.test with a minimum of changes to this program. I have hooked its logging function to call boost logging facilities instead; just can't get past this problem. Thanks for any help! Greg

3 9

[mpi] could all_reduce handle MPI_IN_PLACE ?
by Alain Miniussi 05 Jun '09

05 Jun '09

Hi, There doesn't seems to be an elgant way to do an in place all_reduce on array right now (Although I only stumbled on the issue after I moved to openmpi 1.3.2). That is, if all_reduce_impl is called with (in_values == out_values) MPI is allowed to compain with a MPI_ERR_BUF. Of course, one can call all_reduce with static_cast<T*>(MPI_IN_PLACE) but I do not find that solution very elegant. Would it be a problem to modify all_reduce_impl into: template<typename T, typename Op> void all_reduce_impl(const communicator& comm, const T* in_values, int n, T* out_values, Op /*op*/, mpl::true_ /*is_mpi_op*/, mpl::true_ /*is_mpi_datatype*/) { if (in_values == out_values) { in_values = static_cast<T*>(MPI_IN_PLACE); } BOOST_MPI_CHECK_RESULT(MPI_Allreduce, (const_cast<T*>(in_values), out_values, n, boost::mpi::get_mpi_datatype<T>(*in_values), (is_mpi_op<Op, T>::op()), comm)); } It worked for me, and if there is an agreement I can propose a patch. Regards, -- Alain Miniussi http://www.oca.eu/alainm Equipe CRIMSON https://crimson.oca.eu +33 492 00 30 09

1 0

[proto] declaring result type for callable contexts
by Maurizio Vitale 05 Jun '09

05 Jun '09

Eric, It seems like result types must be defined inside a struct eval, but examples in the documentation show the form commented out below. Is this a recent change? Also, in absence of a result_type declaration inside struct eval {...} the type defaults to int. Would it be possible to make it void or some_ugly_looking_type_that_tell_me_i_is_all_wrong? int might happen to be what the user wants, until he decide to change it and hides the problem. template<typename Expr> struct my_context : proto::callable_context<const my_context<Expr> > { struct eval {typedef double result_type;}; // doesn't work (anymore?) //typedef double result_type; };

3 5

Bug Sprint Report for Thursday, June 4th
by Marshall Clow 05 Jun '09

05 Jun '09

The boost bug sprint started Friday, May 29th, and runs through Sunday June 7th. Thursday was a very good day - let's keep it up! The bug sprint will be over Sunday night. Status <https://svn.boost.org/trac/boost/report/1> 7:00 AM PDT 5/29: 797 open tickets. 7:45 AM PDT 5/30: 772 open tickets. 6:00 AM PDT 5/31: 761 open tickets. 6:00 AM PDT 6/2: 747 open tickets. 6:00 AM PDT 6/3: 748 open tickets. 6:00 AM PDT 6/4: 739 open tickets. 8:00 AM PDT 6/5: 730 open tickets. Activity: 5/29: 6 new tickets, 77 modifications, 25 tickets closed 5/30: 2 new tickets, 42 modifications, 17 tickets closed 5/31: 2 new tickets, 27 modifications, 8 tickets closed 6/1: 2 new tickets, 42 modifications, 17 tickets closed 6/2: 5 new tickets, 18 modifications, 5 tickets closed. 6/3: 4 new tickets, 19 modifications, 2 tickets closed. 6/4: 3 new tickets, 42 modifications, 24 tickets closed. [ Numbers may not add up because I am counting via two different methods, using data that is time-stamped in two different time zones. Also, tickets can be closed and reopened. ] What can you do? See <https://svn.boost.org/trac/boost/wiki/BugSprintJune2009> for details. I've added four new reports to the trac: Open ticket count by owner: <https://svn.boost.org/trac/boost/report/18> Open ticket count by component: <https://svn.boost.org/trac/boost/report/19> Open ticket count by ticket type: <https://svn.boost.org/trac/boost/report/20> Open ticket count by milestone: <https://svn.boost.org/trac/boost/report/21> There's been a lot of discussion on the list about tickets; and there are about a dozen patches that have been tested and are ready to be applied. If you're looking to help, you can look at some of the older bugs, say, the ones for Boost 1.36, and determine if they still apply. If they do, note that in the ticket. There are 35 tickets that are still open that are marked as "to be fixed in Boost 1.36" See <https://svn.boost.org/trac/boost/report/3> for a list of open tickets by milestone. --------- Sign-up sheet -------- The following people have committed to participate in the bug sprint. Please add you name here, along with what you can do. 1) Marshall Clow (coordination, Mac OS X characterization) 2) Beman Dawes (filesystem, system, timer) 3) Doug Gregor (function, graph, logic, mpi, numeric, property_map, signals) 4) "joel falcou" <joel.falcou(a)u-psud.fr> ( linux gcc testing/VC 2008 testing, patching) 5) Michael Caisse <boost(a)objectmodelingdesigns.com> (bug fixing) 6) Jeremiah Willcock <jewillco(a)osl.iu.edu> (will test and commit graph patches) 7) David Abrahams (iterator, python) 8) Sohail Somani (patches for g++ 4.2.4) 9) Steven Watanabe <watanabesj(a)gmail.com> (bug fixes, como) 10) vicente.botet" <vicente.botet(a)wanadoo.fr> 11) Stjepan Rajko <stjepan.rajko(a)gmail.com> (fusion) 12) Daniel Wallin (parameter, ...) -- -- Marshall Marshall Clow Idio Software <mailto:marshall@idio.com> It is by caffeine alone I set my mind in motion. It is by the beans of Java that thoughts acquire speed, the hands acquire shaking, the shaking becomes a warning. It is by caffeine alone I set my mind in motion.

1 0

BGL: how to count and get the connected components in the spanning_tree
by arm2arm 05 Jun '09

05 Jun '09

Hello, I am trying to get connected components in the MST. I have some undirected graph: ----------- BEGIN SNIP ------------------------ typedef adjacency_list < vecS, vecS, undirectedS, no_property, property < edge_weight_t, MyFloat > > Graph; typedef property_map<Graph, edge_weight_t>::type EdgeWeightMap; Graph graphFOF; ... Fill the graph.. //Get the MST property_map < Graph, edge_weight_t >::type weight = get(edge_weight, graphFOF); std::vector < Edge > spanning_tree; std::cout << "Building MST:." ; kruskal_minimum_spanning_tree(graphFOF, std::back_inserter(spanning_tree)); std::cout << " .. done " << std::endl; // // Here is problem: How to use MST edges for filtering the graphFOF?? positive_edge_weight<EdgeWeightMap> filter(meanW, get(edge_weight, graphFOF)); filtered_graph<Graph, positive_edge_weight<EdgeWeightMap> > fg(graphFOF, filter); std::vector<int> component(num_vertices(fg)); int num = connected_components(fg, &component[0]); ------------END SNIP--------------------------- How to count and get the connected components in the spanning_tree? Thank you beforehand. Arman. -- View this message in context: http://www.nabble.com/BGL%3A-how-to-count-and-get-the-connected-components-… Sent from the Boost - Users mailing list archive at Nabble.com.

1 0

Re: [Boost-users] About "transitive_closure" method of Boost graph.
by Amanullah Yasin 05 Jun '09

05 Jun '09

sorry for disturbing, i think you mean test example given on http://www.boost.org/doc/libs/1_39_0/libs/graph/example/transitive_closure.… Yes i tried this example but it is not using this method. void transitive_closure(const Graph& g, GraphTC& tc, G_to_TC_VertexMap g_to_tc_map, VertexIndexMap index_map) Thanks again Amanullah YASIN Master2 (ECD) Ecole Polytechnique Université de Nantes, France. Mob# 06 47 62 89 96 Fix # 02 72 00 26 45 amanyasin(a)gmail.com On Fri, Jun 5, 2009 at 10:57 AM, Vladimir Prus <vladimir(a)codesourcery.com>wrote: > On Friday 05 June 2009 12:52:37 you wrote: > > Thanks Vladimir Prus, for your reply. Please guide me how i can use this > > method > > Please reply to the list, not personally. > > > > > > > void transitive_closure(const Graph& g, GraphTC& tc, > > G_to_TC_VertexMap g_to_tc_map, VertexIndexMap > index_map) > > > > > > *specially how i can declare and use * > > > > * "G_to_TC_VertexMap" & "* > > > > *VertexIndexMap"* > > I have suggested you look at the testcase -- did you do that? > > - Volodya >

1 0

[multi-index] Container not safe against reentrant clear() / erase() ?
by Sebastian Theophil 05 Jun '09

05 Jun '09

Hi, I have encounted a scenario that triggers an access violation when removing reference counted objects from a container. Assume I have a (for simplicity's sake, global) multi_index_container g_multiindex containing reference counted objects of type CObject: boost::multi_index_container< ordered_unique< shared_ptr<CObject> > > g_multiindex; In general, an object of type CObject may be destroyed at any time and the destructor makes sure to remove any reference held in g_multiindex: class CObject { ~CObject() { // if object is explicitly destroyed, remove from container g_multiindex.erase( this ); } }; Since ownership of CObject is shared, g_multiindex may hold the last reference to a CObject instance. g_multiindex.clear then calls - delete_all_nodes() - delete_all_nodes(root()) - this->final_delete_node_(static_cast<final_node_type*>(x)); - which first calls the destructor on x (i.e. it calls ~CObject() on the root() node) At this point, the multi_index_container is not in a valid state. The root() node is being deleted but the container still contains the root() node and points to it, empty() would certainly still return false. Calling g_multiindex.erase with a compatible key crashes in my case. In general, it seems to me that it would be safer to implement clear() by doing something like: void clear() { multi_index_container cpy; swap(cpy, *this); cpy.clear(); } This would remove all elements from the container before actually deleting them. I'm unsure though how the same behavior could be achieved when erasing a single element. The C++ standard does not seem to define how clear() and erase() should behave in this regard, but I cannot image that my application scenario is so unusual that this problem has not been solved a million times. So I'm curious if the behavior of multi_index_containers is by design and maybe someone could be so kind to enlighten me why this is so. Is there any better way to achieve what I'm trying to do? Thank you very much, Sebastian -- Sebastian Theophil . stheophil(a)think-cell.com Software Engineer think-cell Software GmbH . Invalidenstr. 34 . 10115 Berlin, Germany http://www.think-cell.com . phone +49-30-666473-10 . toll-free (US) +1-800-891-8091 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl . Amtsgericht Berlin-Charlottenburg, HRB 85229

4 8

About "transitive_closure" method of Boost graph.
by Amanullah Yasin 05 Jun '09

05 Jun '09

Bonjour Dear I want to check whether there is a directed path between two given nodes (A and C) using Boost graph. I also want to access intermediate edges to examine PDAG properties. I test void transitive_closure(const Graph& g, GraphTC& tc) method. But i want to check between two given nodes. Now i want to ask you - void transitive_closure(const Graph& g, GraphTC& tc, G_to_TC_VertexMap g_to_tc_map, VertexIndexMap index_map) In the above method, how i can declare G_to_TC_VertexMap g_to_tc_map, VertexIndexMap index_map? http://www.boost.org/doc/libs/1_39_0/libs/graph/doc/transitive_closure.html - How i can examine the intermediate edges? or is there any other easy way? I will be thankful to you Best Regards Amanullah YASIN Master2 (ECD) Ecole Polytechnique Université de Nantes, France. Mob# 06 47 62 89 96 Fix # 02 72 00 26 45 amanyasin(a)gmail.com

2 2

Refactoring template functions. Needing help with compile time if statements.
by Ryan McConnehey 05 Jun '09

05 Jun '09

I'm trying to refactor my code to remove some code duplication. Currently I have a template that takes a pointer to store information, a map with the information and a text string. I've specialized the function to account for some fundamental types. As these cases have increased I notice the only difference between the function is how I'm accessing the iterator for the map. template<> void Customize::addVariableType(TiXmlElement *const xml, std::map<string, bool> const& map, string const& mapType) const { std::map<string, bool>::const_iterator itor; for (itor = map.begin(); itor != map.end(); ++itor) { itor->second; } } template<typename T> void Customize::addVariableType(TiXmlElement *const xml, std::map<string, T> const& map, string const& mapType) const { std::map<string, T>::const_iterator itor; for (itor = map.begin(); itor != map.end(); ++itor) { itor->second.base_type_value(); } } I'm using stlSoft's true_typedef for some custom types. STLSOFT_GEN_OPAQUE(fundamental_type); typedef stlsoft::true_typedef<unsigned short, fundamental_type> uint16_type; Most of the maps are comprised of these custom types. That's why the generic template accesses the underlying value of the iterator's second value. Also this accounts for the specialization for fundamental types. Since both the template and the specialization template have the same functionality but access the second map value differently I'm trying to refactor to have another function retrieve iterator value. Below is what I've tried so far. template<> bool accessValue(bool const& value) const { return value; } //V is the underlining type of W. If W was uint16_type then V should be unsigned short. template<typename V, typename W> typename V accessValue(typename W const& value) const { return value.base_type_value(); } I understand that I've moved the difficulty out of addVariableType into accessValue. Unfortunately, accessValue gives an error that typename V cannot be deduced. Also for each fundamental type I have to add an overload to accessValue. This turns into the same problem I'm facing with addVariableType but with less code to copy. Is there a way to have a template function that has an if statement to choice how to access the value? I've tried to use BOOST_TYPEOF_TPL and boost::is_class but was unsuccessful in making it work. Any help would be really helpful. Ryan

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Box-Muller transform Gaussian Random Number Generator
by Enrique Fernández 05 Jun '09

05 Jun '09

Hello, Boost random library implements GRNG (Gaussian Random Number Generator) with Box-Muller transform (code here<http://www.boost.org/doc/libs/1_39_0/boost/random/normal_distribution.hpp>). I want to discuss about this line of code: _cached_rho = sqrt(-result_type(2) * log(result_type(1)-_r2)); I don't know why log is applied to 1-r2, instead of r2 directly, yielding _cached_rho = sqrt(-result_type(2) * log(_r2)); According with [1<http://www.cse.cuhk.edu.hk/%7Ephwl/mt/public/archives/papers/grng_acmcs07.p…>, 2 <http://mathworld.wolfram.com/Box-MullerTransformation.html>, 3<http://en.wikipedia.org/wiki/Box-Muller_transformation>] the uniform random variable r2 is always used directly (never 1-r2). I'd like to know why 1-r2 is used. I've tried to compare with other scientific libraries like GSL<http://www.gnu.org/software/gsl/manual/html_node/The-Gaussian-Distribution.…>, Scythestat <http://scythe.wustl.edu/api/rng_8h-source.html> and LTILib<http://ltilib.sourceforge.net/doc/html/index.shtml>, but they use the Box-Muller polar form (or Marsaglia polar method) or even Ziggurat algorithm, which are supposed to be more efficient. Why isn't polar form implemented? I'd like to know why 1-r2 is used anyway. Regards, Enrique

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