April 2010 - Boost-users - lists.boost.org

Re: [Boost-users] [future] [Visual Studio 8.0] [1.42.0] Include File compiler failure
by Robert Douglas 14 Apr '10

14 Apr '10

Sorry to reply to my own post, but I found a solution, though it requires a code change to boost: struct all_futures_lock { unsigned count; boost::scoped_array<boost::unique_lock<boost::mutex> > locks; all_futures_lock(std::vector<registered_waiter>& futures): count(static_cast<unsigned>(futures.size())),locks(new boost::unique_lock<boost::mutex>[count]) { for(unsigned i=0;i<count;++i) { locks[static_cast<std::ptrdiff_t>(i)]=boost::unique_lock<boost::mutex>(futures[i].future->mutex); } } void lock() { boost::lock(locks.get(),locks.get()+count); } void unlock() { for(unsigned i=0;i<count;++i) { locks[static_cast<std::ptrdiff_t>(i)].unlock(); } } }; Note the 3 static casts, the first is to avoid a warning, and the second two are to explicitly convert the unsigned variable to std::ptrdiff_t. VS 8.0 file "Microsoft Visual Studio 8\VC\include\crtdefs.h" line 516 defines ptrdiff_t as being "_w64 int" type. Thus, the T& scoped_array<T>::operator[](std::ptrdiff_t i) const function has an argument mismatch with unsigned. I realize that unsigned should convert to int just fine, so I'm not sure if this is a compiler issue or not. First Question: Is there anyone with a bit more experience on implicit conversions who can shed some light on whether or not the unsigned should be implictly converted to int, or whether a default function should be matched? Other question, is where is this *other* function coming from? Looking through the preprocessed file, I cannot find any other places where there is a operator[] being used on a scoped_array of any type. Second Question: Is is safe for me to change this header file, and build against it, while linking against the libraries which were built without this change? If not, can anyone suggest a better way to achieve this without having to modify the boost header? Thanks! -RD

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Re: [Boost-users] [Boost.mpi] Installation with Intel compilers (solved)
by Federico Golfrè Andreasi 14 Apr '10

14 Apr '10

The fix you suggested me worked well ! Thank you !!! Date: Mon, 12 Apr 2010 10:17:11 -0600 > From: "Belcourt, Kenneth" <kbelco(a)sandia.gov> > > You could try to edit mpi.jam around line 221 like this: > > if $(otherflags) { > for unknown in $(unknown-features) > { > result += "$(unknown)$(otherflags:J= )" ; > } > } > >

1 0

math round() functions: away from 0
by Hicham Mouline 14 Apr '10

14 Apr '10

Hello,boost/trunk/libs/math/doc/sf_and_dist/html/math_toolkit/utils/rounding/round.html says that: Halfway cases are rounded away from zero, regardless of the current rounding direction.This is compatible with C99 TC3 and therefore the latest C++1x draft.However, when I ran this program:#include <cmath>#include <iostream>#include <boost/math/special_functions/round.hpp>inline double round1(double x){ if (x >= 0.0) return std::floor(x + 0.5); else return std::ceil(x - 0.5);}inline double round2(double x){ return std::floor(x + 0.5);}int main(){ std::cout.setf(std::ios_base::fixed, std::ios_base::floatfield); std::cout.precision(1); std::cout<< "d floor/ceil.5 floor.5 boostmathround"<<std::endl; for (double d=-10.5; d<11; d+=0.5) std::cout<< d<<" "<< round1(d)<<" "<<round2(d)<<" "<< boost::math::iround<double>(d)<<std::endl; return 0;}under g++4.3.x and msvc2008 with trunk, the output for all the negative halves does not seem to be away from 0.The same for boost::math::round<double>(d)This stuff most likely depends on the bit pattern, so I investigated further. I raised the precision of std::cout to 18 decimals.I then rounded this:const double dd = -10.5;which yieldedd floor/ceil.5 floor.5 boostmathround-10.500000000000000000 -11.000000000000000000 -10.000000000000000000 -10and for (double d=-10.6; d<-10.4; d+=0.01) std::cout<< d<<" "<< round1(d)<<" "<<round2(d)<<" "<< boost::math::iround(d)<<std::endl;-10.600000000000000000 -11.000000000000000000 -11.000000000000000000 -11-10.590000000000000000 -11.000000000000000000 -11.000000000000000000 -11-10.580000000000000000 -11.000000000000000000 -11.000000000000000000 -11-10.570000000000000000 -11.000000000000000000 -11.000000000000000000 -11-10.560000000000000000 -11.000000000000000000 -11.000000000000000000 -11-10.550000000000001000 -11.000000000000000000 -11.000000000000000000 -11-10.540000000000001000 -11.000000000000000000 -11.000000000000000000 -11-10.530000000000001000 -11.000000000000000000 -11.000000000000000000 -11-10.520000000000001000 -11.000000000000000000 -11.000000000000000000 -11-10.510000000000002000 -11.000000000000000000 -11.000000000000000000 -11-10.500000000000002000 -11.000000000000000000 -11.000000000000000000 -11-10.490000000000002000 -10.000000000000000000 -10.000000000000000000 -10-10.480000000000002000 -10.000000000000000000 -10.000000000000000000 -10-10.470000000000002000 -10.000000000000000000 -10.000000000000000000 -10-10.460000000000003000 -10.000000000000000000 -10.000000000000000000 -10-10.450000000000003000 -10.000000000000000000 -10.000000000000000000 -10-10.440000000000003000 -10.000000000000000000 -10.000000000000000000 -10-10.430000000000003000 -10.000000000000000000 -10.000000000000000000 -10-10.420000000000003000 -10.000000000000000000 -10.000000000000000000 -10-10.410000000000004000 -10.000000000000000000 -10.000000000000000000 -10-10.400000000000004000 -10.000000000000000000 -10.000000000000000000 -10-10.5 has the exact representation in IEEE754 as the 64bit:0000000000000000000000000000000000000000000000001010010000000011with, accross all the bits (not bytes), the least significant first.It is an _exact_ representation as far as I can tell.therefore the round function should round _away_ from 0, to give -11, shouldn't it?round1() however seems to do the right thing....Regards,

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[Filesystem] Locking files
by Adam Badura 14 Apr '10

14 Apr '10

Is it possible to lock a file with Boost.Filesystem to prevent its deletion, writing or reading? Adam Badura

4 6

enable_if help
by John Dlugosz 13 Apr '10

13 Apr '10

I need to amend my last post (which I can't reply to since it's not showing up on the list yet). The operator+ example doesn't work either. I just didn't notice since it uses +=. I realized that after I posted, and tried testing that separately. However, it gives a different error. It's a more ordinary "no operator found which takes..." which is typical of getting the enable_if wrong so it's not enabled or arguments can't be deduced. So now I'm wondering if the trouble is the and/or. I had assumed that the true_type/false_type were compatible between MPL and the native TR1, since it boils down to "type" and "value". But now I'm thinking that the templates work by mentioning those specific classes. The enable_if and disable_if have proven to work with the native TR1 tests and my own which use the native true/false_type. So I assumed that precautions were taken to interoperate. Maybe the same isn't true with and_ and or_ ? The underlying issue is that TR1 took much of type_traits, but not the composition of primitives. Plauger appears to have an "and" he uses internally, but no "or". If you think that's the trouble, is there something like the _c form that might work with the underlying types? Or maybe I'm barking up the wrong tree; after all, enable_if works fine. --John TradeStation Group, Inc. is a publicly-traded holding company (NASDAQ GS: TRAD) of three operating subsidiaries, TradeStation Securities, Inc. (Member NYSE, FINRA, SIPC and NFA), TradeStation Technologies, Inc., a trading software and subscription company, and TradeStation Europe Limited, a United Kingdom, FSA-authorized introducing brokerage firm. None of these companies provides trading or investment advice, recommendations or endorsements of any kind. The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited. If you received this in error, please contact the sender and delete the material from any computer.

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[function] Boost.Function won't compile under Borland DevStudio 2006
by Fábio 'Petrucio' Stange 13 Apr '10

13 Apr '10

I've just recently learned about boost::function when reading Effective C++, and I was thrilled about it. This is the simple code I'm trying to implement: typedef boost::function1<void, boost::shared_ptr<VarSpeedObject> > ObjectDoneCallback; void SomeFunction(ObjectDoneCallback callback, ...) { // Some code callback(...); } When trying to compile it under C++ Builder 2006 (I have no other choice but to use this in the current project), I get the following error: [C++ Error] function_template.hpp(904): E2131 Objects of type 'detail::function::basic_vtable1<void,shared_ptr<VarSpeedObject> >' cannot be initialized with { } On this line in function_template.hpp: static vtable_type stored_vtable = { { &manager_type::manage }, &invoker_type::invoke }; Can I circumvent this somehow to make it compile under my environment? Thanks, Petrucio

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[future] [Visual Studio 8.0] [1.42.0] Include File compiler failure
by Robert Douglas 13 Apr '10

13 Apr '10

Using: Boost 1.42.0 Visual Studio 2.0.50727 SP2 I have a managed C++ project which exposes a set of C++ utilities as a dll. One particular file transitively includes future.hpp. Deep in future.hpp's detail namespace, it comes across: <code> struct all_futures_lock { unsigned count; boost::scoped_array<boost::unique_lock<boost::mutex> > locks; all_futures_lock(std::vector<registered_waiter>& futures): count(futures.size()),locks(new boost::unique_lock<boost::mutex>[count]) { for(unsigned i=0;i<count;++i) { locks[i]=boost::unique_lock<boost::mutex>(futures[i].future->mutex); } } ... void unlock() { for(unsigned i=0;i<count;++i) { locks[i].unlock(); } } }; </code> the line : locks[i].unlock(); fails with the following error: <a path>\v1_42_0\include\boost/thread/future.hpp(414) : error C2666: 'boost::scoped_array<T>::operator []' : 2 overloads have similar conversions 1> with 1> [ 1> T=boost::unique_lock<boost::mutex> 1> ] 1> <a path>\boost\v1_42_0\include\boost/smart_ptr/scoped_array.hpp(77): could be 'boost::unique_lock<Mutex> &boost::scoped_array<T>::operator [](ptrdiff_t) const' 1> with 1> [ 1> Mutex=boost::mutex, 1> T=boost::unique_lock<boost::mutex> 1> ] 1> or 'built-in C++ operator[(void (__cdecl *)(boost::scoped_array<T> ***), unsigned int)' 1> with 1> [ 1> T=boost::unique_lock<boost::mutex> 1> ] 1> while trying to match the argument list '(boost::scoped_array<T>, unsigned int)' 1> with 1> [ 1> T=boost::unique_lock<boost::mutex> 1> ] Does anyone have any idea what is causing this, and how I might go about resolving it? Sorry if this has ever been brought up, but I could not find anything about this issue in google searches or this mailing list. Thanks in Advance! -RD

1 0

deadline_timer and a crash at ~io_service -> timer_base::destroy()
by Vance Grkov 13 Apr '10

13 Apr '10

Hi, I am getting a crash at the scope end (before the "catch") below in the code. This is the stack trace and the source. Does anyone know what is the problem with this code? Appreciate your help! 000801c7() > BoostThreadPoolTest.exe!boost::asio::detail::timer_queue<boost::asio::time_traits<boost::posix_time::ptime> >::timer_base::destroy() Line 211 + 0xe bytes C++ BoostThreadPoolTest.exe!boost::asio::detail::timer_queue<boost::asio::time_traits<boost::posix_time::ptime> >::destroy_timer_list(boost::asio::detail::timer_queue<boost::asio::time_traits<boost::posix_time::ptime> >::timer_base * & t=0x00338da0) Line 415 C++ BoostThreadPoolTest.exe!boost::asio::detail::timer_queue<boost::asio::time_traits<boost::posix_time::ptime> >::destroy_timers() Line 189 C++ BoostThreadPoolTest.exe!boost::asio::detail::win_iocp_io_service::shutdown_service() Line 148 + 0x2c bytes C++ BoostThreadPoolTest.exe!boost::asio::detail::service_registry::~service_registry() Line 75 + 0xf bytes C++ BoostThreadPoolTest.exe!boost::asio::detail::service_registry::`scalar deleting destructor'() + 0x2b bytes C++ BoostThreadPoolTest.exe!boost::asio::io_service::~io_service() Line 52 + 0x2e bytes C++ BoostThreadPoolTest.exe!wmain(int argc=1, wchar_t * * argv=0x003371d8) Line 152 + 0x27 bytes C++ BoostThreadPoolTest.exe!__tmainCRTStartup() Line 583 + 0x19 bytes C BoostThreadPoolTest.exe!wmainCRTStartup() Line 403 C kernel32.dll!_BaseProcessStart@4() + 0x23 bytes #include "stdafx.h" #include <iostream> #include <boost/thread.hpp> #include <boost/bind.hpp> #include <boost/shared_ptr.hpp> #include <boost/asio.hpp> #define THREAD_POOL_SIZE 10 void TimerCallback(boost::system::error_code ec, std::size_t i, std::size_t retry) { std::stringstream tmp; tmp << "Timer(" << ec.value() << ":" << ec.message() << "-" << retry << "-" << i << ")\n"; } // // MAIN // int _tmain(int argc, _TCHAR* argv[]) { try { boost::asio::io_service io(THREAD_POOL_SIZE); boost::asio::io_service::work *moreWorkToCome = new boost::asio::io_service::work(io); // Create a pool of worker threads. std::vector<boost::shared_ptr<boost::thread> > threads; for (std::size_t i = 0; i < THREAD_POOL_SIZE; ++i) { boost::shared_ptr<boost::thread> thread(new boost::thread( boost::bind(&boost::asio::io_service::run, &io) )); threads.push_back(thread); } // Lets enqueue more tasks to run after a given time std::vector<boost::asio::deadline_timer *> timers; for (std::size_t i = 1; i<50; i++) { boost::asio::deadline_timer *timer = new boost::asio::deadline_timer(io); timer->expires_from_now(boost::posix_time::seconds(3)); timer->async_wait(boost::bind(&TimerCallback, boost::asio::placeholders::error, i, 0)); timers.push_back(timer); } std::cout << "\nALL TASKS QUEUED\n"; // Now that all tasks have been queued we don't want to hold on any of the worker threads delete moreWorkToCome; std::cout << "\nRELEASE THE THREAD POOL\n"; // Wait for all tasks to be processes which also means all threads in the pool will exit. for (std::size_t i = 0; i < threads.size(); ++i) threads[i]->join(); // Cancel all timers (just in case) for (std::size_t i = 0; i < timers.size(); ++i) timers[i]->cancel(); io.stop(); std::cout << "\nPOOL DOWN\n"; } <-------------------------------------------- CRASH catch(...) { std::cout << "ERROR"; } std::cout << "\nEXIT\n"; return 0; } Hotmail: Trusted email with powerful SPAM protection. Sign up now. _________________________________________________________________ Hotmail: Free, trusted and rich email service. https://signup.live.com/signup.aspx?id=60969

3 4

[MPI] MPI auto-detection failed: unknown wrapper compiler...
by Ilja Honkonen 13 Apr '10

13 Apr '10

Hello I'm trying to install boost and its MPI bindings on a Cray XT5 and this is what I get after adding using mpi ; to user-config.jam: MPI auto-detection failed: unknown wrapper compiler /opt/cray/xt-asyncpe/3.3/bin/CC or MPI auto-detection failed: unknown wrapper compiler mpic++ (mpic++ -bash: mpic++: command not found) If I understand correctly boost only checks for mpicc and related executables and also tries mpirun. None of these are supposed to be used on an XT5. The compiler commands to use are cc, CC and ftn. More information for I think the same machine: http://www.csc.fi/english/pages/louhi_guide/program_development/compilers/i… This is how I'd run the test program from boost homepage Compile: cat > mpitesti.cpp << EOF #include <mpi.h> #include <iostream> int main(int argc, char* argv[]) { MPI_Init(&argc, &argv); int rank; MPI_Comm_rank(MPI_COMM_WORLD, &rank); if (rank == 0) { int value = 17; int result = MPI_Send(&value, 1, MPI_INT, 1, 0, MPI_COMM_WORLD); if (result == MPI_SUCCESS) std::cout << "Rank 0 OK!" << std::endl; } else if (rank == 1) { int value; int result = MPI_Recv(&value, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE); if (result == MPI_SUCCESS && value == 17) std::cout << "Rank 1 OK!" << std::endl; } MPI_Finalize(); return 0; } EOF CC mpitesti.cpp -o mpitesti /opt/cray/xt-asyncpe/3.3/bin/CC: INFO: linux target is being used Then submit a job: cat > mpitesti.job << EOF #!/bin/sh #PBS -N mpitesti #PBS -l mppwidth=2 #PBS -l mppnppn=1 #PBS -j oe #PBS -l walltime=00:00:10 cd \$PBS_O_WORKDIR aprun -n 2 -N 1 -cc cpu ./mpitesti EOF qsub mpitesti.job 58665.sdb And after a few seconds: cat mpitesti.o58661 Rank 0 OK! Rank 1 OK! Application 125625 resources: utime 0, stime 0 Actually CC can be one of four different compilers depending on which PrgEnv module I've chosen: CC -V /opt/cray/xt-asyncpe/3.3/bin/CC: INFO: native target is being used pgCC 9.0-4 64-bit target on x86-64 Linux -tp k8-64e Copyright 1989-2000, The Portland Group, Inc. All Rights Reserved. Copyright 2000-2009, STMicroelectronics, Inc. All Rights Reserved. module switch PrgEnv-pgi PrgEnv-gnu CC --version /opt/cray/xt-asyncpe/3.3/bin/CC: INFO: linux target is being used g++ (GCC) 4.3.3 20090124 (rpm:2) Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. etc. I'd also like to use CC (and not necessarily g++) for compiling boost and not just its mpi bindings, how can I make bjam do that? Any other information you might need? Thanks Ilja Honkonen

3 3

[serialization] linker errors then building minimal application on WinXP 64
by pheres 13 Apr '10

13 Apr '10

Hello, the following stripped down code builds fine under 32bit platform but fails with lot of linker errors on the 64bit platform. Compiler is VS2005. I diagnosed the link procedure and found that my 64bit version of libboost_serialization-vc80-mt-1_42.lib is found and tried to link Does anybody know what I am doing wrong? Thank you in advance! -------------------------------------------- #include <boost/archive/xml_oarchive.hpp> #include <fstream> #include "boost/serialization/vector.hpp" #include "boost/serialization/set.hpp" #include "boost/serialization/utility.hpp" struct A_STRUCT { double mBlub; int saveXMLConfig() const { std::ofstream ofs("file", std::ios::binary); boost::archive::xml_oarchive oa(ofs); oa << boost::serialization::make_nvp("A_STRUCT", *this); return 0; } void save(boost::archive::xml_oarchive& ar, const unsigned int) const { ar & boost::serialization::make_nvp("mBlub", mBlub); } BOOST_SERIALIZATION_SPLIT_MEMBER() }; int main(){} -------------------------------------------- The build output: -------------------------------------------- 1>------ Build started: Project: test, Configuration: Debug x64 ------ 1>Compiling... 1>main.cpp 1>Linking to lib file: libboost_serialization-vc80-mt-gd-1_42.lib 1>Linking to lib file: libboost_serialization-vc80-mt-gd-1_42.lib 1>Linking to lib file: libboost_serialization-vc80-mt-gd-1_42.lib 1>Linking... 1> Creating library D:\Simulation\test\test\x64\Debug\test.lib and object D:\Simulation\test\test\x64\Debug\test.exp 1>main.obj : error LNK2019: unresolved external symbol "protected: __cdecl boost::archive::detail::basic_oserializer::basic_oserializer(class boost::serialization::extended_type_info const &)" (??0basic_oserializer@detail@archive@boost@@IEAA@AEBVextended_type_info@serialization@3@@Z) referenced in function "public: __cdecl boost::archive::detail::oserializer<class boost::archive::xml_oarchive,struct A_STRUCT>::oserializer<class boost::archive::xml_oarchive,struct A_STRUCT>(void)" (??0?$oserializer@Vxml_oarchive@archive@boost@@UA_STRUCT@@@detail@archive@boost@@QEAA@XZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: __cdecl boost::archive::detail::basic_oserializer::~basic_oserializer(void)" (??1basic_oserializer@detail@archive@boost@@IEAA@XZ) referenced in function "public: virtual __cdecl boost::archive::detail::oserializer<class boost::archive::xml_oarchive,struct A_STRUCT>::~oserializer<class boost::archive::xml_oarchive,struct A_STRUCT>(void)" (??1?$oserializer@Vxml_oarchive@archive@boost@@UA_STRUCT@@@detail@archive@boost@@UEAA@XZ) 1>main.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::is_less_than(class boost::serialization::extended_type_info const &)const " (?is_less_than@extended_type_info_typeid_0@typeid_system@serialization@boost@@UEBA_NAEBVextended_type_info@34@@Z) 1>main.obj : error LNK2001: unresolved external symbol "public: virtual bool __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::is_equal(class boost::serialization::extended_type_info const &)const " (?is_equal@extended_type_info_typeid_0@typeid_system@serialization@boost@@UEBA_NAEBVextended_type_info@34@@Z) 1>main.obj : error LNK2019: unresolved external symbol "protected: __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0(void)" (??1extended_type_info_typeid_0@typeid_system@serialization@boost@@IEAA@XZ) referenced in function "int `public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::extended_type_info_typeid<struct A_STRUCT>(void)'::`1'::dtor$0" (?dtor$0@?0???0?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ@4HA) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::serialization::extended_type_info::key_register(void)const " (?key_register@extended_type_info@serialization@boost@@IEBAXXZ) referenced in function "public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::extended_type_info_typeid<struct A_STRUCT>(void)" (??0?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::type_register(class type_info const &)" (?type_register@extended_type_info_typeid_0@typeid_system@serialization@boost@@IEAAXAEBVtype_info@@@Z) referenced in function "public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::extended_type_info_typeid<struct A_STRUCT>(void)" (??0?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::extended_type_info_typeid_0(char const *)" (??0extended_type_info_typeid_0@typeid_system@serialization@boost@@IEAA@PEBD@Z) referenced in function "public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::extended_type_info_typeid<struct A_STRUCT>(void)" (??0?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::archive::basic_xml_oarchive<class boost::archive::xml_oarchive>::save_end(char const *)" (?save_end@?$basic_xml_oarchive@Vxml_oarchive@archive@boost@@@archive@boost@@IEAAXPEBD@Z) referenced in function "protected: void __cdecl boost::archive::basic_xml_oarchive<class boost::archive::xml_oarchive>::save_override<double const >(struct boost::serialization::nvp<double const > const &,int)" (??$save_override@$$CBN@?$basic_xml_oarchive@Vxml_oarchive@archive@boost@@@archive@boost@@IEAAXAEBU?$nvp@$$CBN@serialization@2@H@Z) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::archive::basic_xml_oarchive<class boost::archive::xml_oarchive>::save_start(char const *)" (?save_start@?$basic_xml_oarchive@Vxml_oarchive@archive@boost@@@archive@boost@@IEAAXPEBD@Z) referenced in function "protected: void __cdecl boost::archive::basic_xml_oarchive<class boost::archive::xml_oarchive>::save_override<double const >(struct boost::serialization::nvp<double const > const &,int)" (??$save_override@$$CBN@?$basic_xml_oarchive@Vxml_oarchive@archive@boost@@@archive@boost@@IEAAXAEBU?$nvp@$$CBN@serialization@2@H@Z) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::archive::basic_xml_oarchive<class boost::archive::xml_oarchive>::end_preamble(void)" (?end_preamble@?$basic_xml_oarchive@Vxml_oarchive@archive@boost@@@archive@boost@@IEAAXXZ) referenced in function "public: static void __cdecl boost::archive::save_access::save_primitive<class boost::archive::xml_oarchive,double>(class boost::archive::xml_oarchive &,double const &)" (??$save_primitive@Vxml_oarchive@archive@boost@@N@save_access@archive@boost@@SAXAEAVxml_oarchive@12@AEBN@Z) 1>main.obj : error LNK2019: unresolved external symbol "public: __cdecl boost::archive::archive_exception::archive_exception(enum boost::archive::archive_exception::_exception_code,char const *,char const *)" (??0archive_exception@archive@boost@@QEAA@W4_exception_code@012@PEBD1@Z) referenced in function "public: void __cdecl boost::archive::basic_text_oprimitive<class std::basic_ostream<char,struct std::char_traits<char> > >::save(double)" (?save@?$basic_text_oprimitive@V?$basic_ostream@DU?$char_traits@D@std@@@std@@@archive@boost@@QEAAXN@Z) 1>main.obj : error LNK2019: unresolved external symbol "public: virtual __cdecl boost::archive::archive_exception::~archive_exception(void)" (??1archive_exception@archive@boost@@UEAA@XZ) referenced in function "public: void __cdecl boost::archive::archive_exception::`vbase destructor'(void)" (??_Darchive_exception@archive@boost@@QEAAXXZ) 1>main.obj : error LNK2019: unresolved external symbol "public: virtual char const * __cdecl boost::archive::archive_exception::what(void)const " (?what@archive_exception@archive@boost@@UEBAPEBDXZ) referenced in function "[thunk]:public: virtual char const * __cdecl boost::archive::archive_exception::what`vtordisp{4294967292,0}' (void)const " (?what@archive_exception@archive@boost@@$4PPPPPPPM@A@EBAPEBDXZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::serialization::typeid_system::extended_type_info_typeid_0::type_unregister(void)" (?type_unregister@extended_type_info_typeid_0@typeid_system@serialization@boost@@IEAAXXZ) referenced in function "public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::~extended_type_info_typeid<struct A_STRUCT>(void)" (??1?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ) 1>main.obj : error LNK2019: unresolved external symbol "protected: void __cdecl boost::serialization::extended_type_info::key_unregister(void)const " (?key_unregister@extended_type_info@serialization@boost@@IEBAXXZ) referenced in function "public: __cdecl boost::serialization::extended_type_info_typeid<struct A_STRUCT>::~extended_type_info_typeid<struct A_STRUCT>(void)" (??1?$extended_type_info_typeid@UA_STRUCT@@@serialization@boost@@QEAA@XZ) 1>D:\Simulation\test\test\x64\Debug\test.exe : fatal error LNK1120: 16 unresolved externals 1>Build log was saved at "file://d:\Simulation\test\test\test\x64\Debug\BuildLog.htm" 1>test - 17 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== --------------------------------------------

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