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

[Build 1.34.0 MinGW] I'm getting different build files for 1.34.0 than I did for 1.33.1
by Ken Klose 18 May '07

18 May '07

When I built boost 1.33.1 with GCC 3.4.5 on WinXP I got 274 files in the \boost\lib directory consisting of both DLLs and .lib files. When I built boost 1.34 (following the new getting started directions) I only got 154 files in \boost\lib none were DLL or LIB, they were all .a files. Interestingly when the 1.34.0 build starts I get "Unable to construct ./install-unversioned" messages that I don't get in the 1.33.1 build: ...found 1 target... C:\src\c++\boost_1_34_0>bjam --toolset=gcc --prefix=C:\Boost1.34.0 install Building Boost.Regex with the optional Unicode/ICU support disabled. Please refer to the Boost.Regex documentation for more information (don't panic: this is a strictly optional feature). warning: Unable to construct ./install-unversioned warning: Unable to construct ./install-unversioned warning: Unable to construct ./install-unversioned Thanks, Ken

2 4

[serialization] linker errors using polymorphic archives
by MOSS Sebastian 18 May '07

18 May '07

Hi, I'm trying to use the polymorphic interfaces so I can separate components in a serialization library, however I'm having problems resolving the following linker errors using vc71: boost error LNK2019: unresolved external symbol "public: void __thiscall boost::archive::text_iarchive_impl<class boost::archive::text_iarchive>::load(class std::basic_string<unsigned short,struct std::char_traits<unsigned short>,class std::allocator<unsigned short> > &)" (?load@?$text_iarchive_impl@Vtext_iarchive@archive@boost@@@archive@boost @@QAEXAAV?$basic_string@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@@Z ) referenced in function "private: virtual void __thiscall boost::archive::detail::polymorphic_iarchive_impl<class boost::archive::text_iarchive_impl<class boost::archive::text_iarchive> >::load(class std::basic_string<unsigned short,struct std::char_traits<unsigned short>,class std::allocator<unsigned short> > &)" (?load@?$polymorphic_iarchive_impl@V?$text_iarchive_impl@Vtext_iarchive@ archive@boost@@@archive@boost@@@detail@archive@boost@@EAEXAAV?$basic_str ing@GU?$char_traits@G@std@@V?$allocator@G@2@@std@@@Z) and similar for the save interface. I am getting a similar problem using the test example - verbatim - from the doc page http://www.boost.org/libs/serialization/doc/archive_reference.html#polym orphic, even after explicitly declaring template void boost::archive::text_oarchive_impl<boost::archive::text_oarchive>::save( std::basic_string<unsigned short,struct std::char_traits<unsigned short>,class std::allocator<unsigned short> > const &); Does anyone have any recommendations for this? Thanks in advance, Sebastian ******************************* This e-mail contains information for the intended recipient only. It may contain proprietary material or confidential information. If you are not the intended recipient you are not authorised to distribute, copy or use this e-mail or any attachment to it. Murex cannot guarantee that it is virus free and accepts no responsibility for any loss or damage arising from its use. If you have received this e-mail in error please notify immediately the sender and delete the original email received, any attachments and all copies from your system.

1 0

Building 32-bit on linux x86-64?
by Nicholas Bastin 18 May '07

18 May '07

I have a linux machine on x86-64 that I'm trying to use to build Boost in 32-bit. I can build other source in 32-bit, so I figure my environment is set up correctly unless Boost needs something I'm not thinking of. I executed bjam as: bjam --toolset=gcc address-model=32 --with-signals stage Everything builds fine, but the libs aren't 32-bit, file says: libboost_signals-gcc34.so: ELF 64-bit LSB shared object, AMD x86-64, version 1 (SYSV), stripped Any ideas? -- Nick

1 0

Re: [Boost-users] BOOST_TYPEOF_REGISTER_TYPE() throw errors when usingprecompiled headers with VS 8
by Trigve Siver 18 May '07

18 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Friday, May 18, 2007 6:36:36 PM >Subject: Re: [Boost-users] BOOST_TYPEOF_REGISTER_TYPE() throw errors when usingprecompiled >headers with VS 8 > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >> When using precompiled headers, BOOST_TYPEOF_REGISTER_TYPE() macro throw >> some erros. > >Please try #defining BOOST_TYPEOF_SUPPRESS_UNNAMED_NAMESPACE. Thanks, that helped. >Regards, >Arkadiy Trigve ____________________________________________________________________________________ Finding fabulous fares is fun. Let Yahoo! FareChase search your favorite travel sites to find flight and hotel bargains. http://farechase.yahoo.com/promo-generic-14795097

1 0

BOOST_TYPEOF_REGISTER_TYPE() throw errors when using precompiled headers with VS 8
by Trigve Siver 18 May '07

18 May '07

Hi, When using precompiled headers, BOOST_TYPEOF_REGISTER_TYPE() macro throw some erros. stdafx.h: --- #pragma once #ifndef _WIN32_WINNT // Allow use of features specific to Windows XP or later. #define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target other versions of Windows. #endif #include <boost/typeof/typeof.hpp> --- test_boost_auto.cpp : --- #include "stdafx.h" // 1 //#include <boost/typeof/typeof.hpp> // 2 #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() class A { }; BOOST_TYPEOF_REGISTER_TYPE(A) int main() { return 0; } --- When "USE precompiled headers" is turned on, the above code return this error when compiled: --- ------ Build started: Project: test_boost_auto, Configuration: Debug Win32 ------ Compiling... test_boost_auto.cpp d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2143: syntax error : missing ';' before '<' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2059: syntax error : '<' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2653: 'a' : is not a class or namespace name d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2065: 'V' : undeclared identifier d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2143: syntax error : missing ';' before '{' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2447: '{' : missing function header (old-style formal list?) d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2143: syntax error : missing ';' before '<' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2059: syntax error : '<' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2143: syntax error : missing ';' before '{' d:\temp\delete\test_boost_auto\test_boost_auto.cpp(9) : error C2447: '{' : missing function header (old-style formal list?) Build log was saved at "file://d:\Temp\DELETE\test_boost_auto\Debug\BuildLog.htm" test_boost_auto - 10 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== --- When I turn off precompiled headers, comment #include "stdafx.h" and uncomment //#include <boost/typeof/typeof.hpp> // 2 everythings compile fine. thanks Trigve ____________________________________________________________________________________Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469

2 1

Boost on Solaris with its native compiler.
by Seweryn Habdank-Wojewódzki 18 May '07

18 May '07

Dear Can any one tell me why there are no tests for sun compiler? Regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/

2 2

[boost::filesystem] Directory iteration and doc inconsistencies...
by Ovanes Markarian 18 May '07

18 May '07

Hello! Using boost 1.34 with VC 8 Express Edition and the documentation pointing to: http://www.boost.org/libs/filesystem/doc/tr2_proposal.html#basic_path-itera… I would like to ask following: the doc states: 1. For any other iterator value a const basic_directory_entry<Path>& is returned. [...] For any other iterator value a const basic_directory_entry<Path>* is returned. In my case a string_type is returned. 2. "Directory iteration shall not yield directory entries for the current (dot) and parent (dot dot) directories." In my case begin() points to the current (dot) directory. Are these features not implemented in the current 1.34 release? Debugger shows the following type returned by begin().operator->():  FUNCTION CALL: boost::iterator_facade<boost::filesystem::basic_path<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,boost::filesystem::path_traits>::iterator,std::basic_string<char,std::char_traits<char>,std::allocator<char> > const ,boost::bidirectional_traversal_tag,std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,int>::operator-> returned VALUE: "." TYPE: const std::basic_string<char,std::char_traits<char>,std::allocator<char> > * operator* returns the reference to std::basic_string<char,std::char_traits<char>,std::allocator<char> > With Kind Regards, Ovanes

1 0

[boost::program_options] Modification of values after the parsing process
by Ovanes Markarian 18 May '07

18 May '07

Hello! I would like to transform (add) some options after the parsing process has finished. Unfortunately variables_map has no non const members which could acomplish this task. Doing const_cast or using std::map interface, which is not explicitly described as parent class of variables_map is not my first choice. Is there any other way of adding some options programmatically? Many thanks, Ovanes Markarian

1 0

[buid] disabling specific warnings
by Yuval Ronen 18 May '07

18 May '07

Can I pass a command line argument of some sort to tell Boost.Build V2 to disable some specific MSVC warnings?

4 10

Re: [Boost-users] Discussion on Boost re: Postgresql error
by Arkadiy Vertleyb 18 May '07

18 May '07

> I've tried your code and it gives me this internal compiler error: > [...] > But this code gives me another compiler error (the one I have posted in my > threads) and compiler crash: > [...] I think the bottom line is -- sizeof() is broken with regards to default parameters (possibly in more then one way). As I might have mentioned before any ICE is just a fancy way of saying "compiler bug", let alone compiler crash. As I said, Boost.Typeof is implemented through sizeof(), so all the sizeof() problems unfortunately show up in typeof, and it seems to be no way around it inside the library. We've seen some of those in different compilers and in different contexts. You just discovered one more place where it's broken. The only workaround I can see for you is to pass the default parameter explicitely. Annoying, but I don't see any other way :( > Should I also open the bug for VS 8? Yes, absolutely, unless it's already a known issue. Regards, Arkadiy

1 0

[1.33][tuple] Problem with tuples longer than 10 elements
by Seweryn Habdank-Wojewódzki 18 May '07

18 May '07

Hi The code: #include <boost/tuple/tuple.hpp> typedef boost::tuple<int,double,char,int,double,double,double,double,double,double> Foo; int main() {} Is working. But if I add one more field: #include <boost/tuple/tuple.hpp> typedef boost::tuple<int,double,char,int,double,double,double,double,double,double,double> Foo; int main() {} I have an error: tuple_type.cpp:3: error: wrong number of template arguments (11, should be 10) /usr/include/boost/tuple/detail/tuple_basic.hpp:75: error: provided for ?template<class T0, class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9> class boost::tuples::tuple? tuple_type.cpp:3: error: invalid type in declaration before ?;? token Why this error occurs? My kompiler is gcc 4.1 Regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/

4 8

[1.34.0] MSVC - How to build Boost without native wchar_t support
by Jochen Hammann 18 May '07

18 May '07

Hello, I'm using the Microsoft Visual C++ 7.1 and 8.0 compilers and I want to build Boost 1.34.0 without native wchar_t support. With Boost 1.32.0 I used the feature <native-wchar_t> to turn off the native wchar_t support of the Microsoft compilers. It seams that this feature isn't supported by the MSVC toolset any more. Is it possible to turn off the native wchar_t support within the command line of bjam? Many thanks, Jochen.

2 2

Request 1.34.1 milestone for ticket #967
by Christopher Lux 18 May '07

18 May '07

hi, i submitted a ticket for the program_options crash on release builds on windows using msvc-8.0 and msvc-8.0_64 builds [1]. please assign the 1.34.1 milestone to this ticket, because this is a very critical issue where there is no workaround possible. [1] http://svn.boost.org/trac/boost/ticket/967 -chris -- Christopher Lux | | Bauhaus University Weimar | Faculty of Media - Virtual Reality Systems Group

1 0

building boost 1.3.4 with Dev-Cpp (MingW) compiler.
by chun ping wang 18 May '07

18 May '07

Hi , i tried building 1.34.0 with bjam and i get the following errors. ... I was able to build boost 1.33.1 wihtout problem.. but here are the errors i get in 1.34.0 is basically summarize as "-ftemplate-depth-128 not recongize as external or internal command... C:\boost\include\boost_1_34>bjam "--toolset=gcc" "-sPYTHON_VERSIO N=2.5" "--build-dir=C:\boost" "-sGCC_ROOT_DIRECTORY=C:\Dev-Cpp" thanks for help.

2 3

[1.34.1] Release Procedures
by Thomas Witt 17 May '07

17 May '07

1.34.1 Principles and Practice ============================== We will do a 1.34.1 maintenance release to deal with a number of significant bugs that came up right after the 1.34.0 release. The plan is to release 1.34.1 within the next two weeks and then close 1.34.x development. We will be using Trac http://svn.boost.org to track 1.34.1 issues and changes. Every change to 1.34.1 requires an associated Trac ticket. I will not accept patches without Trac ticket. Furthermore for a change to be accepted the correponding Trac ticket needs to have the 1.34.1 milestone assigned. Please don't assign this milestone yourself. I will assign the milestone once it's decided it should go into 1.34.1. The deadline for submitting 1.34.1 tickets is Wednesday May 23rd 6.00 pm PST. Here is the detailed process. 1. Submit bug in Trac 2. Request 1.34.1 milestone for ticket by posting to the developer list. (please copy me directly on this one) 3. 1.34.1 milestone is assigned by Release Manager. Ticket is assigned to developer 4. Post patch referencing ticket to the developer list. (Attach patch to ticket in Trac)(please copy me directly on this one) 5. Once patch is agreed upon I'll apply it to 1.34.1. One more thing, … don't rely on me picking all the issues from the list. I'll most likely fail. Be vocal, add an issue to the tracker. Thomas -- Thomas Witt witt(a)acm.org

1 0

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

Also, when used : --- BOOST_AUTO(rs, a.test("SELECT 1", "123")); --- (without default argument) everything compile fine. But without default argument (as mentioned in last post) there is fatal error: --- BOOST_AUTO(rs, a.test("SELECT 1")); // fatal error --- Thanks Trigve ____________________________________________________________________________________Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469

1 0

boost minimal test gives inconsistent result.
by chun ping wang 17 May '07

17 May '07

Heres the code. if ((2.0/3.0) != MyAnn::getCondProb(std::string("+cancer"), std::string("+test"), vps)); BOOST_ERROR("getCondProb"); if((1.0/2.0) != MyAnn::getProb(std::string("+cancer"), vps, 1)); BOOST_ERROR("getProb"); if((3.0/4.0) != MyAnn::getProb(std::string("+test"), vps, 2)); BOOST_ERROR("getProb"); if((1.0/2.0) != MyAnn::getProbAND(std::string("+cancer"), std::string("+test"), vps)); BOOST_ERROR("getCondProbAND"); if((3.0/4.0) != MyAnn::getProbOR(std::string("+cancer"), std::string("+test"), vps)); BOOST_ERROR("getCondProbOR"); BOOST_CHECK((2.0/3.0) == MyAnn::getCondProb(std::string("+cancer"), std::string("+test"), vps)); BOOST_CHECK((1.0/2.0) == MyAnn::getProb(std::string("+cancer"), vps, 1)); BOOST_CHECK((3.0/4.0) == MyAnn::getProb(std::string("+test"), vps, 2)); BOOST_CHECK((1.0/2.0) == MyAnn::getProbAND(std::string("+cancer"), std::string("+test"), vps)); BOOST_CHECK((3.0/4.0) == MyAnn::getProbOR(std::string("+cancer"), std::string("+test"), vps)); Heres the result: C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(144): getCondProb in function: 'int test_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(146): getProb in function: 'int tes t_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(148): getProb in function: 'int tes t_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(150): getCondProbAND in function: ' int test_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(152): getCondProbOR in function: 'i nt test_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(156): test (1.0/2.0) == MyAnn::getP robAND(std::string("+cancer"), std::string("+test"), vps) failed in function: 'i nt test_main(int, char**)' C:\CPW\cs_classes\cs461\c++\BayesianTest.cpp(157): test (3.0/4.0) == MyAnn::getP robOR(std::string("+cancer"), std::string("+test"), vps) failed in function: 'in t test_main(int, char**)' C:/Boost/include/boost_1_34/boost/test/minimal.hpp(122): exception "std::excepti on: boost::bad_format_string: format-string is ill-formed" caught in function: ' int main(int, char**)' I like to know what went wrong .. and how come its failing? its using boost 1.34

2 2

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Thursday, May 17, 2007 8:39:19 PM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >> --- >> typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; // OK >> type rs; // fatal error >> --- > >So, it seems to be able to deduce the type, but can't use it? I've never >seen anything like this... Is it possible to get the name of the type: > >#include <typeinfo.h> >cout << typeid(type).name(); > >or is it also "fatal error"? std::cout << typeid(type).name(); // fatal error >Also, if you define your own free function returning the same type, with no >parameters, can BOOST_AUTO handle it? With one parameter? A member >function with zero or one parameters? >with zero or one paramters it works ok --- class A { public: pqxx::result test(int a) { return pqxx::result(); } pqxx::result test1(void) { return pqxx::result(); } }; pqxx::result test(void) { return pqxx::result(); } pqxx::result test1(void) { return pqxx::result(); } int main(int argc, char* argv[]) { pqxx::connection connection("host=..."); pqxx::nontransaction T(connection, "GetCustomer"); // typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; // OK BOOST_AUTO(rs, test()); // OK BOOST_AUTO(rs, test1()); // ok A a; BOOST_AUTO(rs, a.test(1)); // OK BOOST_AUTO(rs, a.test1()); // ok ... } --- >What exact version of the compiler are you using? Is it Microsoft Visual >C++ 2005? > Microsoft Visual Studio 2005 Version 8.0.50727.762 (SP.050727-7600) Microsoft .NET Framework Version 2.0.50727 Installed Edition: Professional Microsoft Visual Basic 2005 77626-009-1424494-41887 Microsoft Visual Basic 2005 Microsoft Visual C# 2005 77626-009-1424494-41887 Microsoft Visual C# 2005 Microsoft Visual C++ 2005 77626-009-1424494-41887 Microsoft Visual C++ 2005 Microsoft Visual J# 2005 77626-009-1424494-41887 Microsoft Visual J# 2005 Microsoft Visual Web Developer 2005 77626-009-1424494-41887 Microsoft Visual Web Developer 2005 Microsoft Web Application Projects 2005 77626-009-1424494-41887 Microsoft Web Application Projects 2005 Version 8.0.50727.762 Crystal Reports AAC60-G0CSA4B-V7000AY Crystal Reports for Visual Studio 2005 Microsoft Visual Studio 2005 Professional Edition - ENU Service Pack 1 (KB926601) This service pack is for Microsoft Visual Studio 2005 Professional Edition - ENU. If you later install a more recent service pack, this service pack will be uninstalled automatically. For more information, visit http://support.microsoft.com/kb/926601 Visual Assist X For more information about Visual Assist, see the Whole Tomato Software website at http://www.WholeTomato.com. Copyright (c) 1997-2007 Whole Tomato Software, Inc. >Regards, >Arkadiy Thanks Trigve _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ____________________________________________________________________________________Shape Yahoo! in your own image. Join our Network Research Panel today! http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7

2 1

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Thursday, May 17, 2007 8:14:21 PM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >>>typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; >> >> typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; // OK > >Now I am really confused... > >What about: > >BOOST_TYPEOF(T.exec("SELECT 1")) r = T.exec("SELECT 1"); Hi, this one is fatal error BOOST_TYPEOF(T.exec("SELECT 1")) r = T.exec("SELECT 1"); // fatal error --- ------ Rebuild All started: Project: test_boost_auto, Configuration: Debug Win32 ------ Deleting intermediate and output files for project 'test_boost_auto', configuration 'Debug|Win32' Compiling... stdafx.cpp using typeof emulation Compiling... test_boost_auto.cpp d:\temp\delete\test_boost_auto\test_boost_auto.cpp(16) : fatal error C1001: An internal error has occurred in the compiler. (compiler file 'F:\SP\vctools\compiler\utc\src\P2\main.c[0x10C68EF3:0x00000008]', line 182) To work around this problem, try simplifying or changing the program near the locations listed above. Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information Build log was saved at "file://d:\Temp\DELETE\test_boost_auto\Debug\BuildLog.htm" test_boost_auto - 1 error(s), 0 warning(s) ========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ========== --- also this: --- typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; // OK type rs; // fatal error --- >? > >Regards, >Arkadiy Thanks Trigve ____________________________________________________________________________________ Be a PS3 game guru. Get your game face on with the latest PS3 news and previews at Yahoo! Games. http://videogames.yahoo.com/platform?platform=120121

2 1

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Thursday, May 17, 2007 7:31:04 PM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >>>Strange... >>> >>>Can you post the entire file where you use BOOST_AUTO (and also the >>>file(s) >>>where you register your types)? >>> >> >> Hi, >> of course... > >Well, I don't have PostgreSQL, and can't reproduce the situation without it >:( > >So I am going to ask you to try a couple more things. Can you try all of >these: Hi, there it is: >1) >typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; typedef BOOST_TYPEOF(T.exec("SELECT 1")) type; // OK > >2) >boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT 1")); boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT 1")); // Linker error --- ------ Build started: Project: test_boost_auto, Configuration: Debug Win32 ------ Compiling... stdafx.cpp using typeof emulation Compiling... test_boost_auto.cpp Compiling manifest to resources... Linking... test_boost_auto.obj : error LNK2019: unresolved external symbol "struct boost::type_of::sizer<struct boost::type_of::vector1<struct boost::mpl::size_t<327697> > > __cdecl boost::type_of::encode<struct boost::type_of::vector0<void>,class pqxx::result>(class pqxx::result const &)" (??$encode@U?$vector0@X@type_of@boost@@Vresult@pqxx@@@type_of@boost@@YA?AU?$sizer@U?$vector1@U?$size_t@$0FAABB@@mpl@boost@@@type_of@boost@@@01@ABVresult@pqxx@@@Z) referenced in function _main D:\Temp\DELETE\test_boost_auto\Debug\test_boost_auto.exe : fatal error LNK1120: 1 unresolved externals Build log was saved at "file://d:\Temp\DELETE\test_boost_auto\Debug\BuildLog.htm" test_boost_auto - 2 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== --- > >3) >boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT >1")).item0; boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT 1")).item0; // Linke error(only once)/Fatal error? Sometimes it throw out fatal error and sometimes linker error (only once so far) --- --- > >4) >sizeof(boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT >1")).item0); sizeof(boost::type_of::encode<boost::type_of::vector0<> >(T.exec("SELECT 1")).item0); // fatal error > >5) >typedef >boost::mpl::size_t<sizeof(boost::type_of::encode<boost::type_of::vector0<> >>(T.exec("SELECT 1")).item0)> type; typedef boost::mpl::size_t<sizeof(boost::type_of::encode<boost::type_of::vector0<>>(T.exec("SELECT 1")).item0)> type; // OK > >Which one compiles and which doesn't? So 1, 5 -OK 2, 3 - Linker error 3, 4 - Fatal error >Regards, >Arkadiy Thanks Trigve ____________________________________________________________________________________Get the Yahoo! toolbar and be alerted to new email wherever you're surfing. http://new.toolbar.yahoo.com/toolbar/features/mail/index.php

2 1

libboost-serialization
by jmferrer 17 May '07

17 May '07

Hi: I need read/write on rs232, somebody can send me examples? I search in google and doc (package debian) and I'm still loss. Sorry, for my english, but I'm from chikitistan. Captain PaCO GOLLOS.

2 1

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Thursday, May 17, 2007 5:05:44 PM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Felipe Magno de Almeida" <felipe.m.almeida(a)gmail.com> wrote > >>> One more question -- what is T? Is it a template parameter of some sort? >> >> pqxx::nontransaction T(*m_pSQLConnection, "GetCustomer"); > >Strange... > >Can you post the entire file where you use BOOST_AUTO (and also the file(s) >where you register your types)? > Hi, of course... stadfx.h: --- // stdafx.h : include file for standard system include files, // or project specific include files that are used frequently, but // are changed infrequently // #pragma once #ifndef _WIN32_WINNT // Allow use of features specific to Windows XP or later. #define _WIN32_WINNT 0x0501 // Change this to the appropriate value to target other versions of Windows. #endif #include <cstdio> #include <pqxx/pqxx> #include <boost/typeof/typeof.hpp> // Register user defined types #include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP() BOOST_TYPEOF_REGISTER_TYPE(pqxx::result) --- test_boost_auto.cpp file: --- // test_boost_auto.cpp : Defines the entry point for the console application. // #include "stdafx.h" int main(int argc, char* argv[]) { pqxx::connection connection("host=..."); pqxx::nontransaction T(connection, "GetCustomer"); BOOST_AUTO(rs, T.exec("SELECT 1")); // fatal error at this line //1 pqxx::result rs = T.exec("SELECT 1"); //2 BOOST_AUTO(r, rs); return 0; } --- When I uncomment the 1, 2 line, everything is OK (while the fatal error line is commented out). Output from output window: --- ------ Build started: Project: test_boost_auto, Configuration: Debug Win32 ------ Compiling... test_boost_auto.cpp d:\temp\delete\test_boost_auto\test_boost_auto.cpp(11) : fatal error C1001: An internal error has occurred in the compiler. (compiler file 'F:\SP\vctools\compiler\utc\src\P2\main.c[0x10C68EF3:0x00000008]', line 182) To work around this problem, try simplifying or changing the program near the locations listed above. Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information Build log was saved at "file://d:\Temp\DELETE\test_boost_auto\Debug\BuildLog.htm" test_boost_auto - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== --- >Thanks, >Arkadiy thanks Trigve ____________________________________________________________________________________Give spam the boot. Take control with tough spam protection in the all-new Yahoo! Mail Beta. http://advision.webevents.yahoo.com/mailbeta/newmail_html.html

2 1

Newbie: converting a fs::path to std::string?
by Alan Robert Clark 17 May '07

17 May '07

Morning all I am trying to do: <snip> #include "boost/filesystem/fstream.hpp" namespace fs=boost::filesystem; int produce_lists(fs::path homedir) { fs::path del_fn = homedir / ".wkhm/deletions"; fs::path cr_fn = homedir / ".wkhm/creations"; fs::ofstream deletionsfile (del_fn); fs::ofstream creationsfile (cr_fn); // ensure that the deletions are always transferred creationsfile << homedir << ".wkhm/deletions" << std::endl; } and the << operator does not try to convert fs::path to std:: string. Best way of handling this? Any suggestions welcomed Alan -- Alan Robert Clark, Pr Eng Computational Electromagnetics Associate Professor Wits University School of Electrical and Information Engineering Wits; Gauteng ``Bugs are later known as features'' 2050 South Africa Ps 111:10; Ps 37/150 Fax (+27 11)403-1929 a.clark(a)ee.wits.ac.za Tel (+27 11)717-7223(24hr) <http://YingTongDiddleiPo.ee.wits.ac.za/> GPG Public Key at <http://YingTongDiddleiPo.ee.wits.ac.za/arc.gpg> **Linux ---the choice of a GNU generation.**

2 1

Best way to create a class using the singleton pattern and shared pointers?
by Stephen Torri 17 May '07

17 May '07

Here is a function that I am trying to understand why its giving me a error via valgrind of "Invalid read of size 4". 16: Trace_State::ptr_t Trace_State::Instance() 17: { 18: // Lock the resource? 19: if ( m_instance.get() == 0 ) 20: { 21: m_instance = Trace_State::ptr_t ( new Trace_State() ); 22: } 23: 24: // Unlock the resource? 25: 26: return m_instance; 27: } When I look at the full error report I see: ==10721== Invalid read of size 4 ==10721== at 0x41682E3: boost::detail::atomic_increment(int*) (sp_counted_base_gcc_x86.hpp:66) ==10721== by 0x4168359: boost::detail::sp_counted_base::add_ref_copy() (sp_counted_base_gcc_x86.hpp:133) ==10721== by 0x41684B1: boost::detail::shared_count::shared_count(boost::detail::shared_count const&) (shared_count.hpp:170) ==10721== by 0x41775CF: boost::shared_ptr<libreverse::trace::Trace_State>::shared_ptr(boost::shared_ptr<libreverse::trace::Trace_State> const&) (shared_ptr.hpp:106) ==10721== by 0x41772F0: libreverse::trace::Trace_State::Instance() (Trace.cpp:26) ==10721== by 0x417731B: libreverse::trace::Trace::write_Trace(unsigned, std::string) (Trace.cpp:180) ==10721== by 0x425E394: libreverse::elf_module::Elf_Reader<32>::~Elf_Reader() (Elf_Reader_T.cpp:52) ==10721== by 0x423C8FD: void boost::checked_delete<libreverse::elf_module::Elf_Reader<32> >(libreverse::elf_module::Elf_Reader<32>*) (checked_delete.hpp:34) ==10721== by 0x42480B8: boost::detail::sp_counted_impl_p<libreverse::elf_module::Elf_Reader<32> >::dispose() (sp_counted_impl.hpp:76) ==10721== by 0x804C207: boost::detail::sp_counted_base::release() (sp_counted_base_gcc_x86.hpp:145) ==10721== by 0x804C231: boost::detail::shared_count::~shared_count() (shared_count.hpp:159) ==10721== by 0x423C171: boost::shared_ptr<libreverse::io::File_Reader>::~shared_ptr() (shared_ptr.hpp:106) ==10721== Address 0x43F7A44 is 12 bytes inside a block of size 24 free'd ==10721== at 0x40050FF: free (vg_replace_malloc.c:233) ==10721== by 0x4185AC5: operator delete(void*) (sp_debug_hooks.cpp:205) ==10721== by 0x417C9A4: boost::detail::sp_counted_impl_p<libreverse::trace::Trace_State>::~sp_counted_impl_p() (sp_counted_impl.hpp:52) ==10721== by 0x4168337: boost::detail::sp_counted_base::destroy() (sp_counted_base_gcc_x86.hpp:126) ==10721== by 0x804C1CD: boost::detail::sp_counted_base::weak_release() (sp_counted_base_gcc_x86.hpp:159) ==10721== by 0x804C212: boost::detail::sp_counted_base::release() (sp_counted_base_gcc_x86.hpp:146) ==10721== by 0x804C231: boost::detail::shared_count::~shared_count() (shared_count.hpp:159) ==10721== by 0x4168EBB: boost::shared_ptr<libreverse::trace::Trace_State>::~shared_ptr() (shared_ptr.hpp:106) ==10721== by 0x4176711: __tcf_1 (Trace.cpp:14) ==10721== by 0x47BDCBE8: __cxa_finalize (in /lib/libc-2.5.so) ==10721== by 0x4167192: (within /usr/local/lib/libreverse.so.0.0.0) ==10721== by 0x429EE3B: (within /usr/local/lib/libreverse.so.0.0.0) ==10721== The error is coming when the return of the Trace boost shared ptr. I am wondering if I have made an error in the creation of the class. Here is how the class is defined: #ifndef LIBREVERSE_TRACE_H #define LIBREVERSE_TRACE_H #include <boost/cstdint.hpp> #include <boost/shared_ptr.hpp> #include <fstream> #include "Reverse.h" namespace libreverse { namespace trace { /* Idea taken from http://www.codeproject.com/debug/xytrace.asp * (28 Jan 2002 - Xiangyang Liu) * * I have modified this so that we don't use varargs and use constant types */ class Trace_State { public: typedef boost::shared_ptr<Trace_State> ptr_t; virtual ~Trace_State(); static Trace_State::ptr_t Instance(); void set_Trace_File_Prefix ( std::string name ); void set_Trace_Level ( boost::uint32_t level ); void open_Trace_File ( void ); std::string get_ID_String ( void ); void close_Trace_File ( void ); boost::uint32_t get_Trace_Level ( void ) const; void write_Message ( boost::uint32_t level, std::string msg ); private: Trace_State(); static Trace_State::ptr_t m_instance; std::string m_file_prefix; boost::uint32_t m_trace_level; //boost::recursive_mutex m_mutex; std::ofstream m_log_stream; }; class Trace { public: static bool write_Trace ( boost::uint32_t level, std::string message ); }; } /* namespace trace */ } /* namespace libreverse */ #endif /* LIBREVERSE_TRACE_H */ Is this an appropriate way to create a class using the singleton pattern? Is the constructor assigning the boost shared_ptr? Stephen

3 7

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Thursday, May 17, 2007 11:56:38 AM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >> The signature of exec() method is: >> >> --- >> result exec(const PGSTD::string &Query, >> const PGSTD::string &Desc=PGSTD::string()); >> --- >> >> >Is "pqxx::result" the exact type the expression T.exec("some select...") >> >returns? Can you do: >> > >> >pqxx::result r; >> >BOOST_AUTO(rr, r); >> > >> >? >> >> Yes I can do this without error: >> >> --- >> pqxx::result rs = T.exec(sql_stream.str()); >> BOOST_AUTO(r, rs); >> --- > >Can you paste the exact line of code that causes the error? --- BOOST_AUTO(rs, T.exec("SELECT 1")); --- > >Regards, >Arkadiy thanks Trigve ____________________________________________________________________________________ No need to miss a message. Get email on-the-go with Yahoo! Mail for Mobile. Get started. http://mobile.yahoo.com/mail

3 3

[1.33.1] Problem with fast_pool_allocator across DLL boundaries?
by Andrew Bancroft 17 May '07

17 May '07

Platform: Win32, VC 7 & VC 8.1. I have run into a problem using fast_pool_allocator across DLLs: it 'leaks' memory. In this example, DLL A: 1. declares a container type that uses fast_pool_allocator 2. provides a function to populate the container type DLL B creates instance(s) of the container type & calls DLL A to populate those instances. DLL A ----- struct S { /* A bunch of data */ }; typedef std::list<S, boost::fast_pool_allocator<S> > container_of_s; /* Fills s with a number of S instances */ void dll_populate_container_of_s(container_of_s &s); DLL B ----- void fun_a() { for (int nLoop=0; nLoop<100; ++nLoop) { container_of_s sc; dll_populate_container_of_s(sc); /* manipulate sc in some way */ /* sc is destroyed, but memory is not returned to the pool it was allocated from */ } } The problem is that the memory allocated by fast_pool_allocator inside DLL A (by dll_populate_container_of_s) is not returned to the same pool it was allocated from. I've tracked this down to fast_pool_allocator being backed by a singleton. It turns out that each DLL get's it's own copy of that singleton. So the memory allocated by fast_pool_allocator<S> inside DLL A is returned to a different fast_pool_allocator<S> inside DLL B. Technically not a leak, but the end result is that repeated calls to dll_populate_container_of_s cause more & more memory to be consumed. Does anyone have a solution or workaround for this? Or an alternate pool allocator? Thanks Andrew ---------------------------------------------------------------------- This e-mail, including any attached files, may contain confidential and privileged information for the sole use of the intended recipient. Any review, use, distribution, or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive information for the intended recipient), please contact the sender by reply e-mail and delete all copies of this message.

1 0

[1.33.1][program_options] long option descriptions cause a crash in windows
by Scott Finley 17 May '07

17 May '07

I am using program_options on an app that I am compiling for linux and windows (vs2005). I have found that long option descriptions cause a fatal error on windows when they are long enough that they need to wrap to the next line. (I'm having no problem in linux). If I run the debug version I get an assertion failed in xstring. Release just gives a fatal error. The following code causes the problem: #include <iostream> #include <boost/program_options.hpp> using namespace std; namespace po = boost::program_options; using namespace boost; int main( int argc, char *argv[] ) { string tmp; // Declare a group of options that will be // allowed only on command line po::options_description cmdline_options("Usage: programOptionsTest [options] - Allowed Options blah blah blah blah blah blah blah blah"); cmdline_options.add_options() ("help,h", "produce this help message a b c d e f g h i j k l m n o p"); cout << cmdline_options << endl; cin >> tmp; return 0; } Note that the "blah blah blah..." part is wrapped ok, but the "help" line need to wrap after the "o" and crashes. If I remove the "p" from the string then it doesn't need to wrap and everything is ok. (You might need to adjust the string to cause wrapping if you console width is different then mine.) /************************************** * Scott Finley * Research Software Engineer * TomoTherapy Inc. * Email: sfinley(a)tomotherapy.com * Phone: 608.824.3381 ***/

2 2

How can I execute a system command in boost?
by Meryl Silverburgh 17 May '07

17 May '07

Hi, I am writing a C++ program under linux. Can you please tell me if there is a boost library which I execute a system command? Kind of like System.exec() in Java? Thank you.

2 1

Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 17 May '07

17 May '07

>----- Original Message ---- >From: Arkadiy Vertleyb <vertleyb(a)hotmail.com> >To: boost-users(a)lists.boost.org >Sent: Wednesday, May 16, 2007 10:50:54 PM >Subject: Re: [Boost-users] fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro > >"Trigve Siver" <trigves(a)yahoo.com> wrote > >> I'm using boost 1.34 with postgresql c++ binding (libpqxx). I've got this >> fatal error: >> >> fatal error C1001: An internal error has occurred in the compiler. >> (compiler file >> 'F:\SP\vctools\compiler\utc\src\P2\main.c[0x10C68EF3:0x00000008]', line >> 182) >> To work around this problem, try simplifying or changing the program near >> the locations listed above. >> Please choose the Technical Support command on the Visual C++ >> Help menu, or open the Technical Support help file for more information >> >> when compiling sources with BOOST_AUTO macro from boost/typeof library. >> The code that triggers this error is: >> >> --- >> pqxx::nontransaction T(*m_pSQLConnection, "GetCustomer"); >> BOOST_AUTO(rs, T.exec("some select...")); // pqxx::result rs = >> T.exec(""some select..."); >> --- >> >> pqxx is namespace for postgresql c++ binding. I have registered >> pqxx::result with >> BOOST_TYPEOF_REGISTER_TYPE (pqxx::result) > Hi, thanks for reply, The signature of exec() method is: --- result exec(const PGSTD::string &Query, const PGSTD::string &Desc=PGSTD::string()); --- >Is "pqxx::result" the exact type the expression T.exec("some select...") >returns? Can you do: > >pqxx::result r; >BOOST_AUTO(rr, r); > >? Yes I can do this without error: --- pqxx::result rs = T.exec(sql_stream.str()); BOOST_AUTO(r, rs); --- >Regards, >Arkadiy thanks Trigve ____________________________________________________________________________________ Moody friends. Drama queens. Your life? Nope! - their life, your story. Play Sims Stories at Yahoo! Games. http://sims.yahoo.com/

2 1

How can I wrap class functions that return a reference?
by Patrick Ye 17 May '07

17 May '07

Hi guys, I'm very new to boost.python, so my question might have been already answered. I'm having a lot of trouble creating interfaces for class member functions that return a reference to an object. For example if we have the following class: class btQuadWord { protected: btScalar m_x; btScalar m_y; btScalar m_z; btScalar m_unusedW; public: SIMD_FORCE_INLINE const btScalar& getX() const { return m_x; } }; and we have the following interface code: class_<btQuadWord>("btQuadWord") .def("getX", &btQuadWord::getX) ; I would get the following error messages (ignore the line numbers): /usr/include/boost/python/detail/invoke.hpp: In function 'PyObject* boost::python::detail::invoke(boost::python::detail::invoke_tag_<false, true>, const RC&, F&, TC&) [with RC = boost::python::detail::specify_a_return_value_policy_to_wrap_functions_returning<const btScalar&>, F = const btScalar& (btQuadWord::*)()const, TC = boost::python::arg_from_python<btQuadWord&>]': /usr/include/boost/python/detail/caller.hpp:199: instantiated from 'PyObject* boost::python::detail::caller_arity<1u>::impl<F, Policies, Sig>::operator()(PyObject*, PyObject*) [with F = const btScalar& (btQuadWord::*)()const, Policies = boost::python::default_call_policies, Sig = boost::mpl::vector2<const btScalar&, btQuadWord&>]' /usr/include/boost/python/object/py_function.hpp:38: instantiated from 'PyObject* boost::python::objects::caller_py_function_impl<Caller>::operator()(PyObject*, PyObject*) [with Caller = boost::python::detail::caller<const btScalar& (btQuadWord::*)()const, boost::python::default_call_policies, boost::mpl::vector2<const btScalar&, btQuadWord&> >]' interface.cpp:112: instantiated from here /usr/include/boost/python/detail/invoke.hpp:88: error: no match for call to '(const boost::python::detail::specify_a_return_value_policy_to_wrap_functions_returning<const btScalar&>) (const float&)' Now, btScalar here is just a #define for double, I've had similar problems when the return reference is to a class object. Is there anyway to get around this problem? Thanks a lot. Patrick P.S. How do you get the full list of past mails from the mailing list?

1 0

Re: [Boost-users] DeSerialization to update content of objectinsteadof construct new object
by Ng Pan 17 May '07

17 May '07

Thank you very much. I have successfully overloaded the serialization function. Here is the code as the reference for other ppl doing the similar modification. base.h #ifndef BASE_H #define BASE_H ... #include<boost\serialization\vector.hpp> ... class base { friend class boost::serialization::access; template<class Archive> void serialize(Archive &ar, const unsigned int /* file_version */){ ar & BOOST_SERIALIZATION_NVP(m_nID); } ..... } ... #if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION) #define STD _STLP_STD #else #define STD std #endif namespace boost { namespace serialization { //vector<Base *> template<class Archive, class Allocator> inline void save( Archive & ar, const STD::vector<base *, Allocator> &t, const unsigned int /* file_version */ ){ // record number of elements unsigned int count = t.size(); ar << BOOST_SERIALIZATION_NVP(count); for(unsigned int i=0; i< count; i++) ar<<boost::serialization::make_nvp("loaditem", t.at(i)); } template<class Archive, class Allocator> inline void load( Archive & ar, STD::vector<base *, Allocator> &t, const unsigned int /*file_version*/ ){ // // retrieve number of elements unsigned int count; ar >> BOOST_SERIALIZATION_NVP(count); for(unsigned int i=0; i<count; i++) ar >> boost::serialization::make_nvp("loaditem", *t.at(i)); } } } ... #endif Barr Ng >From: Matthias Troyer <troyer(a)phys.ethz.ch> >Reply-To: boost-users(a)lists.boost.org >To: boost-users(a)lists.boost.org >Subject: Re: [Boost-users] DeSerialization to update content of >objectinsteadof construct new object >Date: Wed, 16 May 2007 07:22:28 +1000 > >Another, maybe easier option, could be to overload the serialization >functions for std::vector<base *> . > >Matthias Troyer > >On 16 May 2007, at 01:02, Robert Ramey wrote: > > > The code for serialization of a vector is found in serialization/ > > vector.hpp. > > > > I implemented this code to reconstuct the vector items rather than > > just reload them. I did this for a number of reasons - which for > > this discussion are not important. > > > > If this doesn't suit your needs, I would suggest you make your own > > version of serialization.hpp which operates differently. Starting > > with the current version it wouldn't be at all hard to do. > > > > If you want to use both current ("standard") method in some > > places in addition to your "custom" method, you might consider > > making some sort of wrapper which tags your special > > vectors with a type which can be distinguished for special > > serialization treatment. > > > > Robert Ramey > > > > Ng Pan wrote: > >> Hi > >> > >> I am using boost serialization to synchronise objects between > >> different computers (network). The objects would be serializated as a > >> string instead of a file by using the class stringstream(instead of > >> fstream). The string would be transferred via TCP/IP layer. > >> > >> Let simpify the situation as only two computers (Master and Slave) > >> ,both of two computers have N objects and I wanna synchronise their > >> content. I create a vector of pointer ( std::vector<base *> m_vpBase > >> ) which points to the dirty objects. Both of two computers have this > >> vector. Let assume the vectors are already pointing to the > >> corresponding objects. For Tx side, it would serialize the objects as > >> a string. For Rx side, I want to update the content of the objects > >> that its vector is pointing to. > >> > >> Tx side: > >> oa << BOOST_SERIALIZATION_NVP(m_vpBase); > >> > >> Rx side: > >> oa >> BOOST_SERIALIZATION_NVP(m_vpBase ); > >> > >> However, the above code would construct new objects. > >> > >> What i want is just update the content of the objects , not construct > >> new objects. > >> > >> I know how to update the content for one object by using pointer ( > >> base * m_pBase). > >> Tx side: > >> oa << BOOST_SERIALIZATION_NVP(m_pBase); > >> > >> Rx side: > >> oa >> BOOST_SERIALIZATION_NVP(*m_pBase); > >> > >> > >> But, I don't know how to do for a vector of pointer. If you know, > >> please give me some hints. Thank you very much. > >> > >> Regards > >> Barr Ng > >> [I found Boost serialization is useful and easy to use. ] > >> > >> _________________________________________________________________ > >> No masks required! Use MSN Messenger to chat with friends and family. > >> http://go.msnserver.com/HK/25382.asp > > > > > > > > _______________________________________________ > > Boost-users mailing list > > Boost-users(a)lists.boost.org > > http://lists.boost.org/mailman/listinfo.cgi/boost-users > >_______________________________________________ >Boost-users mailing list >Boost-users(a)lists.boost.org >http://lists.boost.org/mailman/listinfo.cgi/boost-users _________________________________________________________________ Get 10Mb extra storage for MSN Hotmail. Subscribe Now! http://join.msn.com/?pgmarket=en-hk

3 4

[1.34][program_options] crash on release builds on windows using msvc-8.0
by Christopher Lux 17 May '07

17 May '07

hi, i compiled boost for windows using the msvc-8.0 and msvc-8.0_64 targets. the following code works perfectly on debug builds but crashes on the marked line in x64 mode and goes into an infinite loop in x86 mode. i used visual studio 2005 with and without service pack 1 and even tried the head version of boost. everytime the crash occurs. int main(int argc, char **argv) { int width; int height; try { boost::program_options::options_description cmd_options("program options"); cmd_options.add_options() ("help", "show this help message") ("width", boost::program_options::value<int>(&width)->default_value(1024), "output width") ("height", boost::program_options::value<int>(&height)->default_value(640), "output height"); boost::program_options::variables_map command_line; ***> boost::program_options::store(boost::program_options::parse_command_line(argc, argv, cmd_options), command_line); boost::program_options::notify(command_line); if (command_line.count("help")) { std::cout << "usage: " << std::endl; std::cout << cmd_options; return (0); } winx = width; winy = height; } catch (std::exception& e) { std::cout << e.what() << std::endl; return (-1); } } thanks for your help -chris -- Christopher Lux | | Bauhaus University Weimar | Faculty of Media - Virtual Reality Systems Group

1 0

problems running boost_thread library
by Yunior Peralta González 16 May '07

16 May '07

I have tried to run an example using the latest release of boost and I got the following error: error while loading shared libraries: libboost_thread-gcc41-mt-1_34.so.1.34.0: cannot open shared object file: No such file or directory I have boost installed correctly and I just added -lboost_thread-gcc41-mt-1_34. the problem is not in the code because I have also tried with an empty main and the problem persists. and the fact is that all the libraries are in the same directory (/usr/local/lib) if any idea I'll appreciate it very much to you response me at yperaltag(a)gmail.com thanks in advance.

2 1

Runtime problem using signals in Visual Studio 2005
by Rusty Jones 16 May '07

16 May '07

Hi, I just upgraded from Visual Studio 2003 to Visual Studio 2005 and I am getting consistent crashes in runtime in the signals library. The problem always occurs when trying to call the signal. If I remove the call to a signal, I get a crash the next time that I try to call a signal. The crash occurs in the named_slot_map_iterator in the init_next_group function. The strange thing is that if I build a project from scratch in 2005 I don't experience the problem. I'm not sure if it has anything to do with my configuration, but this code worked in Visual Studio 2003. I'm getting the same problem in boost 1.33.1 and 1.34.0. Any ideas would be appreciated. Cheers, Rusty

1 0

fatal error C1001 with visual studio 8, boost 1.34, BOOST_AUTO() macro
by Trigve Siver 16 May '07

16 May '07

Hi all I'm using boost 1.34 with postgresql c++ binding (libpqxx). I've got this fatal error: fatal error C1001: An internal error has occurred in the compiler. (compiler file 'F:\SP\vctools\compiler\utc\src\P2\main.c[0x10C68EF3:0x00000008]', line 182) To work around this problem, try simplifying or changing the program near the locations listed above. Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information when compiling sources with BOOST_AUTO macro from boost/typeof library. The code that triggers this error is: --- pqxx::nontransaction T(*m_pSQLConnection, "GetCustomer"); BOOST_AUTO(rs, T.exec("some select...")); // pqxx::result rs = T.exec(""some select..."); --- pqxx is namespace for postgresql c++ binding. I have registered pqxx::result with BOOST_TYPEOF_REGISTER_TYPE(pqxx::result). It's strange because I have also registered pqxx::result::const_iterator with BOOST_TYPEOF_REGISTER_TYPE(pqxx::result::const_iterator) and when using auto with pqxx::result::const_iterator there isn't fatal error and everything is compiled fine --- for(BOOST_AUTO(it, rs.begin()); it != rs.end(); ++it) { ... } --- So it looks like there is some bug in VS compiler. Or anyone know where could be the problem? thanks Trigve ____________________________________________________________________________________Looking for a deal? Find great prices on flights and hotels with Yahoo! FareChase. http://farechase.yahoo.com/

2 1

Boost 1.34 unit test linking problem
by Robert Caldecott 16 May '07

16 May '07

Just downloaded and built Boost 1.34 (MS Windows, VS2005). Everything works except those apps that use the Boost Unit Test framework - I get the following linker error: error LNK2019: unresolved external symbol "class boost::unit_test::test_suite * __cdecl init_unit_test_suite(int,char * * const)" (?init_unit_test_suite@@YAPAVtest_suite@unit_test@boost@@HQAPAD@Z) referenced in function "void __cdecl boost::unit_test::framework::init(int,char * * const)" (?init@framework@unit_test@boost@@YAXHQAPAD@Z) Note that I am defining BOOST_AUTO_TEST_MAIN (and use BOOST_AUTO_TEST_CASE) so I don't have to supply my own init_unit_test_suite function. Any ideas how I can quickly get this working? The test notes haven't been updated for 1.34.

2 2

[GIL] Reading a fax G4 tiff
by Josue Gomes 16 May '07

16 May '07

Hi, I'm trying to use GIL to read a Group 4 TIFF file. Below is the output of tiffinfo for this file. With this code: gray8_image_t img; tiff_read_image("killer2-tiffg4.tif", img); I'm getting the following exception: class std::ios_base::failure: tiff_read_view: input view type is incompatible with the image type --------------------------------------- tiffinfo killer2-tiffg4.tig TIFF Directory at offset 0x8 (8) Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 2292 Resolution: 204, 196 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 4 Photometric Interpretation: min-is-white FillOrder: msb-to-lsb Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 2292 Planar Configuration: single image plane Page Number: 0-0 Software: GPL Ghostscript 8.56 DateTime: 2007:05:04 14:17:27 Group 4 Options: (0 = 0x0) TIFF Directory at offset 0x225ce (140750) Subfile Type: multi-page document (2 = 0x2) Image Width: 1728 Image Length: 2292 Resolution: 204, 196 pixels/inch Bits/Sample: 1 Compression Scheme: CCITT Group 4 Photometric Interpretation: min-is-white FillOrder: msb-to-lsb Orientation: row 0 top, col 0 lhs Samples/Pixel: 1 Rows/Strip: 2292 Planar Configuration: single image plane Page Number: 1-0 Software: GPL Ghostscript 8.56 DateTime: 2007:05:04 14:17:29 Group 4 Options: (0 = 0x0) --------------------------------------- Ideas? regards, josuegomes at gmail dot com

1 0

Boost 1.34.0 Released
by Thomas Witt 16 May '07

16 May '07

Boost 1.34.0, the latest version of peer-reviewed, portable C++ libraries, has been released. This release brings five new libraries and extensive updates to existing libraries. http://www.boost.org New Libraries * Foreach Library: BOOST_FOREACH macro for easily iterating over the elements of a sequence, from Eric Niebler. * Statechart Library: Arbitrarily complex finite state machines can be implemented in easily readable and maintainable C++ code, from Andreas Huber. * TR1 Library: An implementation of the C++ Technical Report on Standard Library Extensions, from John Maddock. This library does not itself implement the TR1 components, rather it's a thin wrapper that will include your standard library's TR1 implementation (if it has one), otherwise it will include the Boost Library equivalents, and import them into namespace std::tr1. Highlights include: Reference Wrappers, Smart Pointers, result_of, Function Object Binders, Polymorphic function wrappers, Type Traits, Random Number Generators and Distributions, Tuples, Fixed Size Array, Hash Function Objects, Regular Expressions and Complex Number Additional Algorithms. * Typeof Library: Typeof operator emulation, from Arkadiy Vertleyb and Peder Holt. * Xpressive Library: Regular expressions that can be written as strings or as expression templates, and that can refer to each other and themselves recursively with the power of context-free grammars, from Eric Niebler. Updated Libraries * Assign Library: o Support for ptr_map<key,T> via the new function ptr_map_insert() o Support for initialization of Pointer Containers when the containers hold pointers to an abstract base class. * Date_time library: o Support for new US/Canada timezone rules and other bug fixes. See Change History for details. * Filesystem Library: Major upgrade in preparation for submission to the C++ Standards Committee for TR2. Changes include: o Internationalization, provided by class templates basic_path, basic_filesystem_error, basic_directory_iterator and basic_directory_entry. o Simplification of the path interface by eliminating special constructors to identify native formats. o Rationalization of predicate function design, including the addition of several new functions. o Clearer specification by reference to POSIX, the ISO/ IEEE Single Unix Standard, with provisions for Windows and other operating systems. o Preservation of existing user code whenever possible. o More efficient directory iteration. o Addition of a recursive directory iterator. * Function Library: Boost.Function now implements a small buffer optimization, which can drastically improve the performance when copying or constructing Boost.Function objects storing small function objects. For instance, bind(&X:foo, &x, _1, _2) requires no heap allocation when placed into a Boost.Function object. * Functional/Hash Library o Use declarations for standard classes, so that the library doesn't need to include all of their headers o Deprecated the <boost/functional/hash/*.hpp> headers. o Add support for the BOOST_HASH_NO_EXTENSIONS macro, which disables the extensions to TR1 o Minor improvements to the hash functions for floating point numbers. * Graph Library: o edmonds_maximum_cardinality_matching, from Aaron Windsor. o lengauer_tarjan_dominator_tree, from JongSoo Park. o compressed_sparse_row_graph, from Jeremiah Willcock and Douglas Gregor of Indiana University. o sorted_erdos_renyi_iterator, from Jeremiah Willcock of Indiana University. o biconnected_components now supports a visitor and named parameters, from Janusz Piwowarski. o adjacency_matrix now models the Bidirectional Graph concept. o dijkstra_shortest_paths now calls vis.initialize_vertex for each vertex during initialization. o Note: the name of the compiled library for the GraphViz reader has changed to boost_graph (from bgl-viz) to match Boost conventions. o See the complete revision history for more information. * MultiArray Library: Boost.MultiArray now by default provides range-checking for operator[]. Range checking can be disabled by defining the macro BOOST_DISABLE_ASSERTS before including multi_array.hpp. A bug in multi_array::resize() related to storage orders was fixed. * Multi-index Containers Library: o New random access indices. o Non key-based indices feature new rearrange facilities. o This version also includes a number of optimizations and usage improvements. For a complete list of changes, see the library release notes. * Optional Library: o boost::none_t and boost::none now added to Optional's documentation o Relational operators now directly support arguments of type 'T' and 'none_t' o operator->() now also works with reference types. o Helper functions make_optional(val), make_optional (cond,val) and get_optional_value_or(opt,alternative_value) added. o Constructor taking a boolean condition (as well as a value) added. o Member function get_value_or(alternative_value) added. o Incompatbility bug with mpl::apply<> fixed. o Converting assignment bug with uninitialized lvalues fixed. * Parameter Library: o Every ArgumentPack is now a valid MPL Forward Sequence. o Support for unnamed arguments (those whose keyword is deduced from their types) is added. o Support for named and unnamed template arguments is added. o New overload generation macros solve the forwarding problem directly. o See also the Python library changes, below. * Pointer Container Library: o Support for serialization via Boost.Serialization. o Exceptions can be disabled by defining the macro BOOST_PTR_CONTAINER_NO_EXCEPTIONS before including any header. This macro is defined by default if BOOST_NO_EXCEPTIONS is defined. o Additional std::auto_ptr<T> overloads added s.t. one can also pass std::auto_ptr<T> instead of only T* arguments to member functions. o transfer() now has weaker requirements s.t. one can transfer objects from ptr_container<Derived> to ptr_container<Base>, * Python Library: o Boost.Python now automatically appends C++ signatures to docstrings. The new docstring_options.hpp header is available to control the content of docstrings. o stl_input_iterator, for turning a Python iterable object into an STL input iterator, from Eric Niebler. o Support for void* conversions is added. o Integrated support for wrapping C++ functions built with the parameter library; keyword names are automatically known to docsstrings. o Enhancements to the API for better embedding support (boost::python::import(), boost::python::exec() and boost::python::exec_file()). * Signals Library: More improvements to signal invocation performance from Robert Zeh. * Smart Pointers Library: o Allocator support as proposed in N1851 (162 Kb PDF). o pointer_cast and pointer_to_other utilities to allow pointer-independent code, from Ion Gaztanaga. * String Algorithm Library: o lexicographical_compare o join o New comparison predicates is_less, is_not_greater. o Negative indexes support (like Perl) in various algorihtms (*_head/tail, *_nth). * Wave Library: o Wave now correctly recognizes pp-number tokens as mandated by the C++ Standard, which are converted to C++ tokens right before they are returned from the library. o Several new preprocessing hooks have been added. For a complete description please refer to the related documentation page: The Context Policy. o Shared library (dll) support has been added for the generated Wave libraries. o The overall error handling has been improved. It is now possible to recover and continue after an error or a warning was issued. o Support for optional comment and/or full whitespace preservation in the generated output stream has been added. o The Wave library now performs automatic include guard detection to avoid accessing header files more than once, if appropriate. o Full interactive mode has been added to the Wave tool. Now the Wave tool can be used just like Python or Perl for instance to interactively try out your BOOST_PP macros. Additionally it is now possible to load and save the current state of an interactive session (macro tables et.al.). o The overall performance has been improved by upto 40-60%, depending on the concrete files to process. o Support for new pragmas has been added allowing to control certain library features from inside the preprocessed sources (partial output redirection, control of generated whitespace and #line directives). o Optional support for #pragma message "..." has been added. o This version also includes a number of bug fixes and usage improvements. For a complete list of changes, see the libraries change log. Supported Compilers Boost is tested on a wide range of compilers and platforms. Since Boost libraries rely on modern C++ features not available in all compilers, not all Boost libraries will work with every compiler. The following compilers and platforms have been extensively tested with Boost, although many other compilers and platforms will work as well. For more information, see the regression test results. * Apple GCC 4.0.1 on Mac OS X. * Borland C++ 5.8.2 on Windows. * GNU C++ o 3.2.x., 3.3.x, 3.4.x, 4.0.x, 4.1.x on Linux o 4.1.x on Solaris o 3.4.x on Windows * HP aC++ A.06.14. * Intel C++ 9.1 on Windows, 9.0 on Linux. * Metrowerks CodeWarrior 9.4 on Windows. * Microsoft Visual C++ 6.0 (sp5, with and without STLport), 7.0, 7.1, 8.0. Note: Boost does not support the non-standard "Safe" C++ Library shipping with Visual C++ 8.0, which may result in many spurious warnings from Boost headers and other standards-conforming C++ code. To suppress these warnings, define the macro _SCL_SECURE_NO_DEPRECATE. * Sun Studio 11 on Solaris. Acknowledgements Thomas Witt managed this release. A great number of people contributed their time and expertise to make this release possible. Special thanks go to Vladimir Prus for making Boost.Build version 2 a reality, David Abrahams for authoring a new Getting Started guide, Rene Rivera for general build and installation support and Greg D. for answering countless questions. -- Thomas Witt witt(a)acm.org

5 4

[1.34.0] Another compile time warning when building Boost using MSVC 7.1
by Jurko Gospodnetić 16 May '07

16 May '07

Hi. Here's another warning we got when attempting to compile Boost 1.34 using MSVC 7.1.: libs\regex\src\..\src\cregex.cpp(563) : warning C4309: 'static_cast' : truncation of constant value Hope it helps... Best regards, Jurko Gospodnetić

1 0

[1.34.0] Compiler warnings building Boost using VS 7.1.
by Jurko Gospodnetić 16 May '07

16 May '07

Hi all. Here are some compiler warnings received when building Boost 1.34.0 using Visual Studio .NET 7.1. libs\program_options\src\cmdline.cpp(294) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning) libs\program_options\src\cmdline.cpp(465) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning) D:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\xstring(151) : warning C4506: no definition for inline function 'size_t std:: char_traits<_Elem>::length(const _Elem *)' with [ _Elem=unsigned short ] Hope they help... Best regards, Jurko Gospodnetić

1 0

problems on asio test cases with latest release of boost
by Yunior Peralta González 16 May '07

16 May '07

I installed the latest version of boost (2007-05-11) in Debian perfectly, and when I installed asio with it and typed make check, 26 test cases failed of 42 total. Someone know how to solve this? Or perhaps asio is not compatible with this release of boost?

2 1

[asio] Multiple listeners on different ports?
by Sohail Somani 16 May '07

16 May '07

Hi, My application needs to listen on one port for a certain service and another for another service. Service A is a registration-type service and service B is a typical client-server response service. I need to be able to handle concurrent connections on both ports. I would also like to use asio streams rather than the async read/write operations (its just easier!). What I had thought of was spawning two threads for the two services. My questions are: * Is it possible to use streams with concurrent connections? * Would asio be unhappy if I used the above "design"? * Is there a better suggestion/example I can look at? Thanks, Sohail

2 1

[1.34.0] VC8 Express Compilation
by Ovanes Markarian 16 May '07

16 May '07

Hi all! I have a question, does someone know how the build script finds out where the Platform SDK is installed? Visual C++ Express Edition does not come bundled with a platform SDK, so it must be installed separately (MS setup does not offer to install it under Visual C++ dir) and in my case I get some errors when compiling the threading library. Should I explicitly specify include directories for the Platform SDK in the bjam command line? Many thanks, Ovanes

2 2

[Boost.Test] shared lib (.so) has no main(), static (.a) does
by Chris Uzdavinis 16 May '07

16 May '07

Hi, I'm trying out boost 1.34 and running into some troubles getting my test programs to link. They were working fine with 1.33.1, and rebuilding with 1.34 now fails to find "main" in the boost unit test framework library. After a little investigation, I found that the .so does not have main() in it, but the .a does. System: suse linux 9.1 compiler: g++ 3.3.3 boost version: 1.34 I built boost by simply issuing: ./configure && make && make install I've searched for hints what may have changed or why it's no longer working (that is, what I'm doing wrong) but I just don't see any relevant documentation. The most suspicious part is the difference from the shared library and the archive file. $ nm -a /usr/local/lib/libboost_unit_test_framework-gcc33-mt-d.so | grep main 00077498 d DW.ref._ZTISt12domain_error 000582b8 t _GLOBAL__I__ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cppiMDvta17results_collectorE 00000000 a unit_test_main.cpp 00057f68 T _ZN5boost9unit_test14unit_test_mainEPFbvEiPPc 00082bd0 B _ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cppiMDvta17results_collectorE 00077408 V _ZTISt12domain_error 000727b8 V _ZTSSt12domain_error $ $nm -a /usr/local/lib/libboost_unit_test_framework-gcc33-mt-d.a | grep main 00000000 V _ZTISt12domain_error 00000000 V _ZTSSt12domain_error unit_test_main.o: 000002bc t _GLOBAL__I__ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cpprMsLbd17results_collectorE 00000210 T main 00000000 a unit_test_main.cpp 00000000 T _ZN5boost9unit_test14unit_test_mainEiPPc 00000000 B _ZN5boost9unit_test49_GLOBAL__N_libs_test_src_unit_test_main.cpprMsLbd17results_collectorE $ For a simple example: #define BOOST_TEST_MAIN #include <boost/test/unit_test.hpp> BOOST_AUTO_TEST_CASE(mytest) { } $g++ mytest.cpp -I $BOOST_HDRDIR -L $BOOST_ROOT/lib -lboost_unit_test_framework-gcc33-mt-d /usr/lib/gcc-lib/i586-suse-linux/3.3.3/../../../crt1.o(.text+0x18): In function `_start': ../sysdeps/i386/elf/start.S:98: undefined reference to `main' collect2: ld returned 1 exit status Suggestions welcome. Thanks. Chris

3 2

Link error with test boost.signals app (boost::throw_exception?)
by Nicholas Bastin 16 May '07

16 May '07

I'm trying to build a small test program for boost.signals on my windows machine, and I get the following linker error (code below): test.obj : error LNK2019: unresolved external symbol "void __cdecl boost::throw_exception(class exception const &)" (?throw_exception@boost@@YAXAEBVexception@@@Z) referenced in function main My command line is: icl /I. test.cpp /link /LIBPATH:./stage/lib Test.cpp is: #include <boost/signal.hpp> #include <iostream> void hello (void) { std::cout << "Hello, world!" << std::endl; } int main(void) { boost::signal<void ()> sig; sig.connect(&hello); sig(); return 0; } -- Nick

1 1

DeSerialization to update content of object instead of construct new object
by Ng Pan 16 May '07

16 May '07

Hi I am using boost serialization to synchronise objects between different computers (network). The objects would be serializated as a string instead of a file by using the class stringstream(instead of fstream). The string would be transferred via TCP/IP layer. Let simpify the situation as only two computers (Master and Slave) ,both of two computers have N objects and I wanna synchronise their content. I create a vector of pointer ( std::vector<base *> m_vpBase ) which points to the dirty objects. Both of two computers have this vector. Let assume the vectors are already pointing to the corresponding objects. For Tx side, it would serialize the objects as a string. For Rx side, I want to update the content of the objects that its vector is pointing to. Tx side: oa << BOOST_SERIALIZATION_NVP(m_vpBase); Rx side: oa >> BOOST_SERIALIZATION_NVP(m_vpBase ); However, the above code would construct new objects. What i want is just update the content of the objects , not construct new objects. I know how to update the content for one object by using pointer ( base * m_pBase). Tx side: oa << BOOST_SERIALIZATION_NVP(m_pBase); Rx side: oa >> BOOST_SERIALIZATION_NVP(*m_pBase); But, I don't know how to do for a vector of pointer. If you know, please give me some hints. Thank you very much. Regards Barr Ng [I found Boost serialization is useful and easy to use. ] _________________________________________________________________ No masks required! Use MSN Messenger to chat with friends and family. http://go.msnserver.com/HK/25382.asp

3 3

[date_time] Construct a time_period a year long
by Ken Klose 15 May '07

15 May '07

I'm want to represent a period of time of 1 year starting at the current ptime and ending at the corresponding ptime a year from now. I've tried this: boost::posix_time::time_period _time_period( boost::posix_time::second_clock::local_time(), boost::gregorian::years(1) ); However I get this error: error: no matching function for call to `boost::date_time::period<boost::posix_time::ptime, boost::posix_time::time_duration>::period(boost::posix_time::ptime, boost::gregorian::years)' Any thoughts on how to solve my problem? Thanks, Ken

2 2

How can I loop thru a vector backward?
by Meryl Silverburgh 15 May '07

15 May '07

Hi, I use boost library with for_each to loop thru my vector. for_each(myVector.begin(),myVector.end(), bind ( &MyClass::aFunc, this, _1) ); Can you please tell me how can i loop thru the same list in reverse? Thank you.

3 2

Building bjam 1.34 on vc8 64bit?
by Nicholas Bastin 15 May '07

15 May '07

When I try to build bjam 1.34 with "build vc8", I get a TON of the following errors: LIBCMTD.lib(<xxx>.obj) : error LNK2001: unresolved external symbol __security_check_cookie (Happens on a bunch of bjam objs too) I presume this is because of the "safe" vc8 runtime, but how do I get around this issue? I presumed the vc8 toolset would take this into account, but it apparently does not. Is there some way to pass defines to build.bat? -- Nick

2 4

gcc automatic linking
by Pascal Patry 15 May '07

15 May '07

Hi, I'm currently experiencing an issue with Boost 1.34.0 and gcc 4.1.1. I'm depending on boost_filesystem from my program for some operations. When using boost 1.33.1, I was able to link against libboost_filesystem-[...].a only by doing -lboost_filesystem and by including the stage/libs directory of boost. Now, if I don't modify anything, I'm getting linker errors. The current workaround is to put '-lboost_filesystem-gcc41' or to rename libboost_filesystem-gcc41.a to libboost_filesystem.a The thing is, everytime I'm using other stuff from boost requiring linking against a library, I'll have to rename the library on my workstation or modify the Makefile... So, I'd like to know if there is anything else I can do to fix this automatic linker problem. Thank you, Pascal

1 0

Re: [Boost-users] Entire iostreams library outdated in 1.34.0?
by Anders Dalvander 15 May '07

15 May '07

If Turkanis is nowhere to be found someone should really look at all the bugs assigned to him. http://svn.boost.org/trac/boost/query?status=new&status=assigned&status=reo… 484 Boost.Iostreams and newline translation 525 problem with boost::iostreams when compiled with Visual C++ 579 boost.iostreams file_descriptor and sharing 586 iostreams // file_descriptor::seek BUG on files > 4 GB 699 Changing size of memory-mapped file on Windows 786 bug in iostreams/copy.hpp line 81 791 iostreams::tee_filter is for output only 817 Performance problem in iostreams 822 Incorrect usage of bad_write(), bad_seek() etc. 856 iostreams file_descriptor::write fails under Win32 869 [iostreams] patch for building by BBv2 // Anders

1 0

boost date_time
by Aljaz 15 May '07

15 May '07

Hello I want to output current date/time on my computer including timezone in this format: Date: Tue, 15 May 2007 09:21:48 -0400 -0400 is a timezone Im not really familiar with timezones and I could not understand the documentation how to output local timezone this way. Basically I just want to output local timezone on computer.. Heres what I have so far: #include <boost/date_time/posix_time/posix_time.hpp> #include <boost/date_time/local_time/local_time.hpp> #include <boost/date_time/local_time/posix_time_zone.hpp> #include <boost/date_time/date_facet.hpp> #include <ctime> #include <locale> #include <memory> #include <sstream> #include <boost/shared_ptr.hpp> std::string mystrftime(const std::string format, time_t time, const std::locale& locale = std::locale::classic()) { boost::shared_ptr<boost::local_time::time_zone> tz(new boost::local_time::posix_time_zone("dont know what to put here")); boost::local_time::local_date_time dt(boost::posix_time::from_time_t(time), tz); boost::local_time::local_time_facet *ff = new boost::local_time::local_time_facet(); ff->format(format.c_str()); std::stringstream s; s.imbue(std::locale(std::locale::classic(), ff)); s << dt; return s.str(); } int main () { std::cout << mystrftime("%A, %B %d, %Y %q", std::time(0)) << '\n'; } Thanks for help Regards A

1 0

[1.33][tuple] Problem with tuples longer than 10 elements
by Seweryn Habdank-Wojewódzki 15 May '07

15 May '07

Dears The code: #include <boost/tuple/tuple.hpp> typedef boost::tuple<int,double,char,int,double,double,double,double,double,double> Foo; int main() {} Is working. But if I add one more field: #include <boost/tuple/tuple.hpp> typedef boost::tuple<int,double,char,int,double,double,double,double,double,double,double> Foo; int main() {} I have an error: tuple_type.cpp:3: error: wrong number of template arguments (11, should be 10) /usr/include/boost/tuple/detail/tuple_basic.hpp:75: error: provided for ?template<class T0, class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9> class boost::tuples::tuple? tuple_type.cpp:3: error: invalid type in declaration before ?;? token Why this error occurs? My kompiler is gcc 4.1 Regards. -- |\/\/| Seweryn Habdank-Wojewódzki \/\/

1 0

[bug] Suggestion for clarification to front page
by Paul Giaccone 15 May '07

15 May '07

In http://boost.org/libs/libraries.htm, I suggest changing the heading and link that reads "Broken compiler workarounds". 1. If this means "Workarounds for broken compilers", then change either to that phrase or to "Broken-compiler workarounds"; prefer the former for clarity. 2. If this means "Compiler workarounds that are broken", change to that phrase. As it stands, this is ambiguous: it is not clear which noun the adjective "broken" modifies. Does this section give workarounds (a good thing) or report workarounds that are broken (an unfortunate thing)? Following the links, I see it is the former (after all, what would be the point in giving workarounds that are broken?), but this is not obvious at first glance. Sorry if this is not the right place to post this.

1 0

Cross-compilation with mingw32 on Linux
by Maciej Blizinski 15 May '07

15 May '07

Hi Boost users, I have setup a MinGW cross-compilation suite on my Linux box. To create a Windows binary, the only thing I need to do is call specific C++ compiler name: $ i686-mingw32-g++ -o hello.exe hello.cpp Now I have a Windows executable on my disk, I can test it with wine: $ wine hello.exe Hello, world! I've written a program in C++; I would like to create binary for windows. I'm using Boost libraries, so I need to cross-compile Boost as well. I've tried to compile Boost like this: maciej@clover ~/src/boost_1_34_0 $ ./configure --with-toolset=mingw --prefix=$HOME/win32 Building Boost.Jam with toolset mingw... ./configure: line 199: ./bootstrap/jam0: No such file or directory tools/jam/src//bjam Detecting Python version... 2.4 Detecting Python root... /usr Unicode/ICU support for Boost.Regex?... /usr Backing up existing Boost.Build configuration in user-config.jam.6 Generating Boost.Build configuration in user-config.jam... Generating Makefile... Error messages... but Makefile has been created. Trying... maciej@clover ~/src/boost_1_34_0 $ make ./tools/jam/src//bjam -sICU_PATH=/usr --user-config=user-config.jam /bin/sh: ./tools/jam/src//bjam: No such file or directory Not all Boost libraries built properly. Can I somehow compile Boost using i686-mingw-c++ compiler? Any suggestions? -- Maciej Bliziński http://automatthias.wordpress.com

2 1

How to define _SCL_SECURE_NO_DEPRECATE when building signals? (or, win64 with intel compiler?)
by Nicholas Bastin 15 May '07

15 May '07

I caught the note that I needed to define _SCL_SECURE_NO_DEPRECATE on windows when building with vc8 (or, in my case the intel compiler, which uses the same SDK). Is there some mechanism for doing this in bjam? Or, asked another way, has anyone succesfully built boost.signals in 64-bit on windows using ICL 9.1? And if so, what magic bjam command line incantation did you use? :-) -- Nick

2 1

1.34.0 RC3
by Jeff 14 May '07

14 May '07

Hello, Might the fix for this problem be in there? http://article.gmane.org/gmane.comp.lib.boost.user/27122 Thanks, Jeff

7 11

a few boost.View questions
by abir basak 14 May '07

14 May '07

When I was searching for a view library to have some container adapters so that I can store a portion of a dynamic container in a class, I came across Boost View library and uBLAS range_vector and slice_vector. (Iterators are unsuitable for my purpose as I can't store a portion of a container through iterator when container are resizing (through push_back & pop_front) , and also iterators are dumb enough so they dont give the index for the container they are locating :( ) So I needed the alternative view classes or container adapters , which are store-able even when container is allocating/reallocating as long as the portion of the container which the view is pointing is available. At present I have my own view classes (only the classes I need ) , but planning to switch to boost View classes. A few questions regarding boost View library (from sandbox) 1) is it an accepted library ? if not when it will be accepted ? 2) Apart from range_view all other views are based on container (i.e they are container adapter ). So all other views are store-able while range view is not ( when the iterator becomes invalid , the view is also) any reason for this decision ? 3) for step_iterator, why no step_view is given ? 3) How can I make a composite view mixing a set of views like 2 range view, or one range_view and one permutation_view. For eg. I want to make a container adapter for a container taking a range 2-10 (range_view) and 15,18,17 (permutation_view ). AFAIK some of this mixed views are supported by blitz library. Thanks abir -- Abir Basak, Member IEEE Software Engineer, Read Ink Technologies B. Tech, IIT Kharagpur email: abir(a)abirbasak.com homepage: www.abirbasak.com

2 3

[BoostCon 07] Some First Pictures from Aspen
by Jeff Garland 14 May '07

14 May '07

I know some of you were looking for 'blogs' from BoostCon. I won't promise much on the text side, but I borrowed my wife's new camera and will be taking some photos during the conference and posting them. Thru a variety of circumstances I arrived a day early in Aspen, so I've had a chance to look around a bit. These are photos of the outside of the Aspen Institute and Aspen Meadows hotel. I think the word 'idyllic' pretty much sums up the surroundings! http://www.crystalclearsoftware.com/boostcon_07/FirstPictures/index.html Jeff

3 3

[serialization] macros and template classes
by alex solovyov 14 May '07

14 May '07

Hi all, It is not possible to use the macro BOOST_CLASS_EXPORT_GUID or BOOST_IS_ABSTRACT etc. with a template class. You can certainly redefine the macro to use the template classes as follows: #define BOOST_TEMPLATE_CLASS_IS_ABSTRACT(CLASS_NAME, TYPENAME_ARG_1 …, TYPENAME_ARG_n) \ namespace boost \ { \ namespace serialization \ { \ template<> \ struct is_abstract<CLASS_NAME<TYPENAME_ARG_1, …, TYPENAME_ARG_n> > \ { \ typedef mpl::bool_<true> type; \ BOOST_STATIC_CONSTANT(bool, value = true); \ }; \ } \ } But here we have the following problem: 1. How many definitions are written? 2. What happens with the following template class: Class1<int, Class2<int, char> >; it defines another new macro (: The answer for this problem I found in MPL library. We need a wrapper (traits): struct abstract_class { typedef Class1<int, Class2<int, char> > type; }; and the macro: #define BOOST_TEMPLATE_CLASS_IS_ABSTRACT(CLASS_WRAPPER) \ namespace boost \ { \ namespace serialization \ { \ template<> \ struct is_abstract< CLASS_WRAPPER::type > \ { \ typedef mpl::bool_<true> type; \ BOOST_STATIC_CONSTANT(bool, value = true); \ }; \ } \ } It is not an optimal solution, but reduces the source code. Best regards Alex Solovyov

1 0

[Boost.Graph] unused variable warning
by Christoph 13 May '07

13 May '07

please fix the unsused variable warning in graph/topological_sort.hpp:40 Thank you, Best regards Christoph

1 0

Installing boost with bloodshed dev c++ and windows xp
by Paul Epstein 12 May '07

12 May '07

I am trying to install boost -- I have a bloodshed dev c++ compiler 4.9.9.2 and windows xp. I am trying to install boost and then quantlib but am stuck at the boost stage. I find that the instructions at boost.org appear to assume more knowledge of dos commands and path environment variables than I possess. I sometimes get the message that bjam is not recognized, and I sometimes get the message that the toolsets are not configured. I do know how to add paths to the path environment variable but not much else. I tried to follow Terrence August's online instructions (which are excellent) http://www.stanford.edu/~taugust/quantlib.html but this interfered with my dev cpp compiler. Thank you very much for your help. Paul Epstein ____________________________________________________________________________________Be a better Globetrotter. Get better travel answers from someone who knows. Yahoo! Answers - Check it out. http://answers.yahoo.com/dir/?link=list&sid=396545469

1 0

Serializing vector<int>
by Alec Gorjestani 11 May '07

11 May '07

Hi, I am new to boost, but was able to get my own classes serialized. However, when I include <boost/serialization/vector.hpp> and try to serialize a vector<int> I get the compile messages below. I must be missing something. class myclass2 : public Serializable<myclass2> // inherit Serializable to become a serializable object { private: // Override the serialize method, listing all variables to (un)serialize friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & mc; ar & vint; } public: myclass2() {}; ~myclass2() {}; void Print() { mc[0].Print(); mc[1].Print(); } std::vector<int> vint; myclass mc[2]; }; if g++ -DHAVE_CONFIG_H -I. -I. -I../.. -Wall -I../../src -I/ivlab/include -I/ivlab/include -I/usr/include/libxml2 -g -O2 -MT test_serializable.o -MD -MP -MF ".deps/test_serializable.Tpo" -c -o test_serializable.o test_serializable.cpp; \ then mv -f ".deps/test_serializable.Tpo" ".deps/test_serializable.Po"; else rm -f ".deps/test_serializable.Tpo"; exit 1; fi distcc[6473] ERROR: compile /home/alecg/.ccache/test_seria.tmp.hal.6469.ii on localhost failed /usr/include/boost/archive/detail/oserializer.hpp: In constructor ‘boost::archive::detail::oserializer<Archive, T>::oserializer() [with Archive = boost::archive::text_oarchive, T = myclass]’: /usr/include/boost/archive/detail/oserializer.hpp:135: instantiated from ‘static boost::archive::detail::oserializer<Archive, T>& boost::archive::detail::oserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_oarchive, T = myclass]’ /usr/include/boost/archive/detail/oserializer.hpp:264: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::save_standard::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass]’ /usr/include/boost/archive/detail/oserializer.hpp:322: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass]’ /usr/include/boost/archive/detail/oserializer.hpp:536: instantiated from ‘void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass]’ /usr/include/boost/archive/basic_text_oarchive.hpp:78: instantiated from ‘void boost::archive::basic_text_oarchive<Archive>::save_override(T&, int) [with T = const myclass, Archive = boost::archive::text_oarchive]’ /usr/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from ‘Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const myclass, Archive = boost::archive::text_oarchive]’ ../Serializable.h:71: instantiated from ‘void Serializable<T>::toStringStream(std::stringstream&) [with T = myclass]’ test_serializable.cpp:111: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:107: error: incomplete type ‘boost::serialization::extended_type_info_null<myclass>’ used in nested name specifier /usr/include/boost/archive/detail/oserializer.hpp: In constructor ‘boost::archive::detail::oserializer<Archive, T>::oserializer() [with Archive = boost::archive::text_oarchive, T = myclass2]’: /usr/include/boost/archive/detail/oserializer.hpp:135: instantiated from ‘static boost::archive::detail::oserializer<Archive, T>& boost::archive::detail::oserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/archive/detail/oserializer.hpp:264: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::save_standard::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/archive/detail/oserializer.hpp:322: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/archive/detail/oserializer.hpp:536: instantiated from ‘void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/archive/basic_text_oarchive.hpp:78: instantiated from ‘void boost::archive::basic_text_oarchive<Archive>::save_override(T&, int) [with T = const myclass2, Archive = boost::archive::text_oarchive]’ /usr/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from ‘Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const myclass2, Archive = boost::archive::text_oarchive]’ ../Serializable.h:71: instantiated from ‘void Serializable<T>::toStringStream(std::stringstream&) [with T = myclass2]’ test_serializable.cpp:136: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:107: error: incomplete type ‘boost::serialization::extended_type_info_null<myclass2>’ used in nested name specifier /usr/include/boost/archive/detail/iserializer.hpp: In constructor ‘boost::archive::detail::iserializer<Archive, T>::iserializer() [with Archive = boost::archive::text_iarchive, T = myclass]’: /usr/include/boost/archive/detail/iserializer.hpp:146: instantiated from ‘static boost::archive::detail::iserializer<Archive, T>& boost::archive::detail::iserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_iarchive, T = myclass]’ /usr/include/boost/archive/detail/iserializer.hpp:375: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::load_standard::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass]’ /usr/include/boost/archive/detail/iserializer.hpp:425: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass]’ /usr/include/boost/archive/detail/iserializer.hpp:572: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass]’ /usr/include/boost/archive/basic_text_iarchive.hpp:64: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = myclass, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/text_iarchive.hpp:64: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = myclass, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = myclass, Archive = boost::archive::text_iarchive]’ ../Serializable.h:79: instantiated from ‘void Serializable<T>::fromStringStream(std::stringstream&) [with T = myclass]’ test_serializable.cpp:115: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:114: error: incomplete type ‘boost::serialization::extended_type_info_null<myclass>’ used in nested name specifier /usr/include/boost/archive/detail/iserializer.hpp: In constructor ‘boost::archive::detail::iserializer<Archive, T>::iserializer() [with Archive = boost::archive::text_iarchive, T = myclass2]’: /usr/include/boost/archive/detail/iserializer.hpp:146: instantiated from ‘static boost::archive::detail::iserializer<Archive, T>& boost::archive::detail::iserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/archive/detail/iserializer.hpp:375: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::load_standard::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/archive/detail/iserializer.hpp:425: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/archive/detail/iserializer.hpp:572: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/archive/basic_text_iarchive.hpp:64: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = myclass2, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/text_iarchive.hpp:64: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = myclass2, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = myclass2, Archive = boost::archive::text_iarchive]’ ../Serializable.h:79: instantiated from ‘void Serializable<T>::fromStringStream(std::stringstream&) [with T = myclass2]’ test_serializable.cpp:140: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:114: error: incomplete type ‘boost::serialization::extended_type_info_null<myclass2>’ used in nested name specifier /usr/include/boost/archive/detail/iserializer.hpp: In member function ‘bool boost::archive::detail::iserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_iarchive, T = myclass2]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:142: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/archive/detail/iserializer.hpp:143: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/archive/detail/iserializer.hpp: In member function ‘bool boost::archive::detail::iserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_iarchive, T = myclass]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:142: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/archive/detail/iserializer.hpp:143: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/archive/detail/oserializer.hpp: In member function ‘bool boost::archive::detail::oserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_oarchive, T = myclass2]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:131: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/archive/detail/oserializer.hpp:132: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass2>’ /usr/include/boost/archive/detail/oserializer.hpp: In member function ‘bool boost::archive::detail::oserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_oarchive, T = myclass]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:131: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/archive/detail/oserializer.hpp:132: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<myclass>’ /usr/include/boost/archive/detail/oserializer.hpp: In constructor ‘boost::archive::detail::oserializer<Archive, T>::oserializer() [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’: /usr/include/boost/archive/detail/oserializer.hpp:135: instantiated from ‘static boost::archive::detail::oserializer<Archive, T>& boost::archive::detail::oserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/oserializer.hpp:264: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::save_standard::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/oserializer.hpp:273: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::save_conditional::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/oserializer.hpp:322: instantiated from ‘static void boost::archive::detail::save_non_pointer_type<Archive, T>::invoke(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/oserializer.hpp:536: instantiated from ‘void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/basic_text_oarchive.hpp:78: instantiated from ‘void boost::archive::basic_text_oarchive<Archive>::save_override(T&, int) [with T = const std::vector<int, std::allocator<int> >, Archive = boost::archive::text_oarchive]’ /usr/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from ‘Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const std::vector<int, std::allocator<int> >, Archive = boost::archive::text_oarchive]’ /usr/include/boost/archive/detail/interface_oarchive.hpp:86: instantiated from ‘Archive& boost::archive::detail::interface_oarchive<Archive>::operator&(T&) [with T = std::vector<int, std::allocator<int> >, Archive = boost::archive::text_oarchive]’ test_serializable.cpp:73: instantiated from ‘void myclass2::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_oarchive]’ /usr/include/boost/serialization/access.hpp:109: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/serialization/serialization.hpp:81: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/serialization/serialization.hpp:140: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_oarchive, T = myclass2]’ /usr/include/boost/archive/detail/oserializer.hpp:148: instantiated from ‘void boost::archive::detail::oserializer<Archive, T>::save_object_data(boost::archive::detail::basic_oarchive&, const void*) const [with Archive = boost::archive::text_oarchive, T = myclass2]’ test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:107: error: incomplete type ‘boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ used in nested name specifier /usr/include/boost/archive/detail/iserializer.hpp: In constructor ‘boost::archive::detail::iserializer<Archive, T>::iserializer() [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’: /usr/include/boost/archive/detail/iserializer.hpp:146: instantiated from ‘static boost::archive::detail::iserializer<Archive, T>& boost::archive::detail::iserializer<Archive, T>::instantiate() [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/iserializer.hpp:375: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::load_standard::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/iserializer.hpp:382: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::load_conditional::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/iserializer.hpp:425: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive, T>::invoke(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/detail/iserializer.hpp:572: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’ /usr/include/boost/archive/basic_text_iarchive.hpp:64: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = std::vector<int, std::allocator<int> >, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/text_iarchive.hpp:64: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = std::vector<int, std::allocator<int> >, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = std::vector<int, std::allocator<int> >, Archive = boost::archive::text_iarchive]’ /usr/include/boost/archive/detail/interface_iarchive.hpp:83: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = std::vector<int, std::allocator<int> >, Archive = boost::archive::text_iarchive]’ test_serializable.cpp:73: instantiated from ‘void myclass2::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]’ /usr/include/boost/serialization/access.hpp:109: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/serialization/serialization.hpp:81: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/serialization/serialization.hpp:140: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = myclass2]’ /usr/include/boost/archive/detail/iserializer.hpp:160: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = myclass2]’ test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:114: error: incomplete type ‘boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ used in nested name specifier /usr/include/boost/archive/detail/iserializer.hpp: In member function ‘bool boost::archive::detail::iserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_iarchive, T = std::vector<int, std::allocator<int> >]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/iserializer.hpp:142: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/archive/detail/iserializer.hpp:143: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/archive/detail/oserializer.hpp: In member function ‘bool boost::archive::detail::oserializer<Archive, T>::is_polymorphic() const [with Archive = boost::archive::text_oarchive, T = std::vector<int, std::allocator<int> >]’: test_serializable.cpp:147: instantiated from here /usr/include/boost/archive/detail/oserializer.hpp:131: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/archive/detail/oserializer.hpp:132: error: invalid use of undefined type ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ /usr/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of ‘struct boost::serialization::extended_type_info_null<std::vector<int, std::allocator<int> > >’ make[4]: *** [test_serializable.o] Error 1 make[4]: Leaving directory `/home/alecg/Software/ivlab3/objects/src/tests' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/home/alecg/Software/ivlab3/objects/src/tests' make[2]: *** [all-recursive] Error 1 make[2]: Leaving directory `/home/alecg/Software/ivlab3/objects/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/alecg/Software/ivlab3/objects' make: *** [all] Error 2 alec

1 0

Re: [Boost-users] 2007 Boost Conference is Next Week!
by Gennadiy Rozental 11 May '07

11 May '07

Looks like I am going to be driving to/from Aspen from/to Denver. Does anyone is interested to join? Gennadiy P.S. Beman mentioned wiki maybe a good idea - any luck?

1 0

[asio][msvc-8_0] compilation failed on example
by JD 11 May '07

11 May '07

Hi, I've been trying to use Boost.Asio in a project and compilation failed with VC 8.0. Compiler complains that unary operator! that should be member of asio::error is not defined. I tried to compile lib/asio/example/http/client/ from CVS HEAD and got another compile issue: ..\..\..\..\..\boost/asio/ip/unicast.hpp(62) : error C2065: 'IPV6_UNICAST_HOPS': undeclared identifier Is there known compile issue with asio? Thanks for your help. JD

3 7

Building a project using boost with Visual Studio 2005
by storri＠torri.org 11 May '07

11 May '07

Are there any special compiler flags that I need to use to build a C++ project using boost with Visual Studio 2005? I am getting a C2220 compiler error that an object cannot be created: 1>------ Build started: Project: data_containers, Configuration: Debug Win32 ------ 1>Compiling... 1>Memory_Map.cpp 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : error C2220: warning treated as error - no 'object' file generated 1> C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(54) : see reference to class template instantiation 'boost::io::detail::group4<T1,T2,T3,T4>' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> .\Memory_Map.cpp(341) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : warning C4512: 'boost::io::detail::group4<T1,T2,T3,T4>' : assignment operator could not be generated 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(103) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(150) : see reference to function template instantiation 'void boost::io::detail::put_last<char,std::char_traits<char>,boost::io::detail::group4<T1,T2,T3,T4>>(std::basic_ostream<_Elem,_Traits> &,const boost::io::detail::group1<boost::io::detail::group4<T1,T2,T3,T4>> &)' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t &, 1> _Elem=char, 1> _Traits=std::char_traits<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(242) : see reference to function template instantiation 'void boost::io::detail::put<Ch,Tr,Alloc,T>(T,const boost::io::detail::format_item<Ch,Tr,Alloc> &,std::basic_string<_Elem,_Traits,_Ax> &,boost::io::basic_altstringbuf<Ch,Tr,Alloc> &,boost::io::detail::locale_t *)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> &, 1> _Elem=char, 1> _Traits=std::char_traits<char>, 1> _Ax=std::allocator<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(251) : see reference to function template instantiation 'void boost::io::detail::distribute<Ch,Tr,Alloc,T>(boost::basic_format<Ch> &,T)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/format_class.hpp(64) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::io::detail::feed<char,Tr,Alloc,const T&>(boost::basic_format<Ch> &,const boost::io::detail::group1<T1>)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>>, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1> .\Memory_Map.cpp(341) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::basic_format<Ch>::operator %<boost::io::detail::group1<T1>>(const T &)' being compiled 1> with 1> [ 1> Ch=char, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> 1> ]

2 2

Visual Studio 2005 unable to generate assignment operator
by storri＠torri.org 11 May '07

11 May '07

Is this error report indicating that I have a problem in my use of boost or my code? Here is the statement that its trying to compile: output << boost::format("%1X") % boost::io::group ( std::hex, std::setw(2), std::setfill('0'), static_cast<boost::uint16_t>(m_data[(*pos).second])); m_data is defined as: // !\brief This type represents a byte typedef boost::uint8_t data_t; // !\brief The internal data structure of a Memory Map typedef std::vector <data_t> Values_t; data_types::Memory_Map::Values_t m_data; pos is a data_types::Memory_Map::Address_Map_t::const_iterator that is defined as: // !\brief Map key is a 32-bit address in memory typedef boost::uint32_t map_key_t; // !\brief index where the data is in the Values_t list typedef boost::uint32_t index_t; // !\brief Table use for normal lookups ( address => index ) typedef std::map<map_key_t, index_t> Address_Map_t; Please forgive my ignorance here of Visual Studio. I have read up the microsoft explaination of this error but I have trouble understanding where to start looking. I do not have any constant data members in my code for the Memory_Map class. Therefore I am not sure why I am getting this error. Stephen ------ Build started: Project: data_containers, Configuration: Debug Win32 ------ 1>Compiling... 1>Memory_Map.cpp 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : warning C4512: 'boost::io::detail::group4<T1,T2,T3,T4>' : assignment operator could not be generated 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(54) : see reference to class template instantiation 'boost::io::detail::group4<T1,T2,T3,T4>' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> .\Memory_Map.cpp(341) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(103) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(150) : see reference to function template instantiation 'void boost::io::detail::put_last<char,std::char_traits<char>,boost::io::detail::group4<T1,T2,T3,T4>>(std::basic_ostream<_Elem,_Traits> &,const boost::io::detail::group1<boost::io::detail::group4<T1,T2,T3,T4>> &)' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t &, 1> _Elem=char, 1> _Traits=std::char_traits<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(242) : see reference to function template instantiation 'void boost::io::detail::put<Ch,Tr,Alloc,T>(T,const boost::io::detail::format_item<Ch,Tr,Alloc> &,std::basic_string<_Elem,_Traits,_Ax> &,boost::io::basic_altstringbuf<Ch,Tr,Alloc> &,boost::io::detail::locale_t *)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> &, 1> _Elem=char, 1> _Traits=std::char_traits<char>, 1> _Ax=std::allocator<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(251) : see reference to function template instantiation 'void boost::io::detail::distribute<Ch,Tr,Alloc,T>(boost::basic_format<Ch> &,T)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/format_class.hpp(64) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::io::detail::feed<char,Tr,Alloc,const T&>(boost::basic_format<Ch> &,const boost::io::detail::group1<T1>)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>>, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1> .\Memory_Map.cpp(341) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::basic_format<Ch>::operator %<boost::io::detail::group1<T1>>(const T &)' being compiled 1> with 1> [ 1> Ch=char, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> 1> ]

1 0

[1.34.0] Release Candidate 3
by Thomas Witt 11 May '07

11 May '07

Hi, 1.34.0 release candidate 3 is now available from: http://www.boost.org/release/. It contains a number of doc changes. Toolset version auto detection with msvc. And a fix for missing files in the install (bjam install). Please give it a try and report any problems to the developer list or directly to me. Unless it's broken in a major way it'll be released unchanged on Saturday May 12. Thanks Thomas -- Thomas Witt witt(a)acm.org

2 2

How to specify the bjam's --libdir and --includedir in user-config.jam
by elviin 11 May '07

11 May '07

Hello, instead of writing: bjam --libdir=/../parallel/dev/lib/boost/ --includedir=/../parallel/dev/include/boost/ install i would like to specify those paths in the ~/user-config.jam. Thank you. Elviin

2 2

MinGW binary installer for Boost?
by John Pye 11 May '07

11 May '07

Hi all, Is there such a thing as a binary for Boost under MinGW? As far as I can tell, the correct way to get started with Boost on MinGW is to download the .EXE installer, unpack to c:\Boost, then run bjam "-sMINGW_ROOT_DIRECTORY=c:\MinGW" "-sTOOLS=mingw" install I found that this didn't install the libraries where I expected, however. I found this comment: http://www.mpi-inf.mpg.de/~dfischer/manual/manual_topic38.html#topic41 which says that I have to do a bunch of manual file moving/renaming. Is that right? Really? There must be a better way, surely? Please let me know if I'm missing something, or if there is a better way to get started with Boost under MinGW/MSYS. Cheers JP

3 5

boost::ptr_vector with const members
by Josh Quigley 10 May '07

10 May '07

Hello, I'm trying to use boost::ptr_vector with constant members, like // Excerpt 1 boost::ptr_vector<const int> myVector; myVector.push_back(new int(5)); //This line fails, see comment below myVector[1] = 7; //This should fail, can't assign to const I can do the following with boost::shared_ptr, which is the effect I'm trying to achieve with the above // Except 2 boost::shared_ptr<const int> intPtr(new int(5)); intPtr* = 7; //This won't compile, can't assign to const Returning to excerpt 1, the second line fails, and I don't know why. It causes an error deep within the bowels of the boost. I've tried many permutations placing const in different places, with no luck. Any help or suggestions greatly appreciated! Cheers, Josh Quigley.

2 2

[boost 1.34 beta] MSVC 8 installation issue
by Ovanes Markarian 10 May '07

10 May '07

Dear boosters! I have a problem installing boost libraries as a relative path to project's include directories. MSVC has 2 options to install libraries: - globally for every C++ project - locally for a single project (specified in project settings) My intention is to install Boost locally, since this way any other developer is able to check-out the project from the source control system and without setting paths or global directories in MSVC start using the project. I have successfully compiled boost libs and copied include and lib directories into the proper place. Afterwards I tried to include <boost/variant/variant.hpp> file. Preprocessor found it and included correctly, but I receive an error from another file: [Some_path]\thirdparty\include\boost\variant\detail\config.hpp(16) : fatal error C1083: Cannot open include file: 'boost/config.hpp': No such file or directory There is really no such file in the include/boost directory. Did the installation fail or do I miss smth. include and lib directories are taken after passing the install paramenter to the bjam executable. Many thanks, Ovanes

2 3

Smart pointers
by Olivier Tournaire 10 May '07

10 May '07

Hi all Suppose I have two classes A and B like those ones : class A { // ... B *m_b; }; class B { // ... std::vector<A *> m_a; }; m_b is used to know who is the parent of the object. I would like to use smart pointers. How can I do this ? Thanks in advance -- Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des noyaux. Courage.

4 3

[Serialization] problem linking on Windows using Visual Studio and SCons
by Ben Kirk 10 May '07

10 May '07

I've looked everwhere I know to look (MSDN, SCons archive, Boost archive, etc) and tried tweeking my code every way I know how (and countless other suggestions found Googling), but for some reason I cannot get boost_serialization lib to link into my application. If I build with -DBOOST_SERIALIZATION_NO_LIB, I get LNK2005/LNK2019 errors. MSDN says these are CString related, but their "solution" is only for MFC - which won't work with my setup... I'm using SCons to build my "Custom Makefile" QT application - Visual Studio is basically just an editor for my environment. If I leave off -DBOOST_SERIALIZATION_NO_LIB, I get LNK1104 (can't open Boost Serialization lib file)... even though the path to the Boost Serialization lib is explictily listed on the command line (and it is there)! I think this could have something to do with Microsoft's auto-linking, but I'm not 100% sure. Any pointers would be greatly appreciated. Best wishes, Ben

3 2

[program_options] link error
by Scott Finley 10 May '07

10 May '07

I am trying to use boost.program_options, but I'm getting a link error: undefined reference to `boost::program_options::options_description::options_description(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, unsigned int)' I compiled boost 1.33.1 normally on linux with gcc, and I don't see a libboost_program_options or some such to link against. I don't see anything in the documentation on boost.org about what I should link with. I also don't have any source in BOOST_BASE/libs/program_options which would explain why there is no library. The documentation also mentions /libs/program_options/examples which I don't have. Do I need to download the .cpps for this separately? Is this included in another library I need to link with? -- /************************************** * Scott Finley * Research Software Engineer * TomoTherapy Inc. * Email: sfinley(a)tomotherapy.com * Phone: 608.824.3381 ***/

1 0

templated class member
by Ares Lagae 10 May '07

10 May '07

I have a list of fundamental types (known at compile time). For each of these types I want to declare a templated member in a class. So, instead of class foo { private: int int_variable; double double_variable; ... /* rest of types */ }; I want something like class foo { private: variable_list<int, double, ... /* rest of types */> variable; }; and then access "foo::variable" with a template-like syntax. E.g. "variable.get<int>()". Does anyone have any idea how I can accomplish this? -- Ares Lagae Computer Graphics Research Group, Katholieke Universiteit Leuven http://www.cs.kuleuven.be/~ares/

4 9

[asio] bug report
by Scott Finley 10 May '07

10 May '07

I have found what appears to be a bug in ASIO. From boost/asio/detail/socket_select_interrupter.hpp, starting on line 53: sockaddr_in4_type addr; socket_addr_len_type addr_len = sizeof(addr); addr.sin_family = AF_INET; addr.sin_addr.s_addr = inet_addr("127.0.0.1"); addr.sin_port = 0; if (socket_ops::bind(acceptor.get(), (const socket_addr_type*)&addr, addr_len, ec) == socket_error_retval) { boost::system::system_error e(ec, "socket_select_interrupter"); boost::throw_exception(e); } addr needs to be cleared before it is used. The failure to do this caused the bind call to fail for me on VxWorks 6.4. I inserted the following line right after the delcaration of addr: bzero((char *)&addr, sizeof(sockaddr_in4_type)); This solved the problem for me. -- /************************************** * Scott Finley * Research Software Engineer * TomoTherapy Inc. * Email: sfinley(a)tomotherapy.com * Phone: 608.824.3381 ***/

2 1

Re: [Boost-users] [1.34.0] Release Candidate
by David Abrahams 10 May '07

10 May '07

on Thu May 10 2007, Thomas Witt <witt-AT-acm.org> wrote: > Just in case you're wondering this post was not meant to be empty. > > As mentioned earlier the answer is in > > http://www.boost.org/more/getting_started.html#Tools Thomas, I'm confused. I don't think anything in that table is very relevant to 1.34.0, since we're using BBv2 now. > Autodetect did not make it for 1.34.0 Whoops, really? You mean of version numbers? My documentation change says that autodetection works for gcc and msvc. Was I incorrect? I thought you let Rene check in the fix for msvc. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com Don't Miss BoostCon 2007! ==> http://www.boostcon.com

1 0

libboost-regex-1.33.1 problem with regex_merge
by Bruno.Voigt＠ic3s.de 10 May '07

10 May '07

Hi all, I have a problem with an application build with the current debian/etch libboost-regex lib. I am not sure if the problem results from an intended behaviour change of the regex lib or if its a bug of either the regex lib or the debian package. The following test app worked flawlessly with several older boost regex versions and I would like to understand why it doesn't work anymore using the lib from debian/etch. Do I have to adjust the invocation parameters of boost_merge for the current version? I do not unnecessarily want to force the users of my production apps to have to update their match patterns over dozens of cfg files from "(.*)" to "^(.*)$". TIA for any hints, Bruno -- bruno.voigt(a)ic3s.de // debian/etch: dpkg -l *boost* // ii libboost-dev 1.33.1-10 Boost C++ Libraries development files // ii libboost-regex-dev 1.33.1-10 regular expression library for C++ // ii libboost-regex1.33.1 1.33.1-10 regular expression library for C++ // ii libboost-thread-dev 1.33.1-10 portable C++ multi-threading // ii libboost-thread1.33.1 1.33.1-10 portable C++ multi-threading // // build: g++ -lboost_regex regex_merge_test.cpp // #include <cstdlib> #include <string> #include <iostream> #include <boost/shared_ptr.hpp> #include <boost/regex.hpp> using namespace std; int main(void) { string my_regex("(.*)"); // doesnt't work (worked with previous boost regex versions) //string my_regex("^(.*)$"); // works string my_replace("\\+$1"); string my_string("123"); try { boost::regex my_regex_comp(my_regex); try { string my_result = boost::regex_merge(my_string, my_regex_comp, my_replace); cout << "boost::regex_merge result: " << my_result << endl; // I get a trailing + character: +123+ // I expected as in earlier liiboost-regex versions: +123 exit(0); } catch(...) { cout << "boost::regex_merge exception" << endl; } } catch(...) { cout << "boost::regex()exception" << endl; } exit(1); }

3 3

Having trouble including my static library (which uses regex) in my MFC app
by Martin Zeng 10 May '07

10 May '07

Hi guys, I have a static library in which I have included the boost regex header. This static library compiles fine with no errors. But then I want to use this static library in an MFC application I made. I keep getting the following linking error: error LNK2005: "public: static unsigned int __cdecl std::char_traits<unsigned short>::length(unsigned short const *)" (?length@?$char_traits@G@std@@SAIPBG@Z) already defined in msvcprtd.lib(MSVCP71D.dll) What is the problem and how can I solve it? Thanks -- This email is from Civica Pty Limited and it, together with any attachments, is confidential to the intended recipient(s) and the contents may be legally privileged or contain proprietary and private information. It is intended solely for the person to whom it is addressed. If you are not an intended recipient, you may not review, copy or distribute this email. If received in error, please notify the sender and delete the message from your system immediately. Any views or opinions expressed in this email and any files transmitted with it are those of the author only and may not necessarily reflect the views of Civica and do not create any legally binding rights or obligations whatsoever. Unless otherwise pre-agreed by exchange of hard copy documents signed by duly authorised representatives, contracts may not be concluded on behalf of Civica by email. Please note that neither Civica nor the sender accepts any responsibility for any viruses and it is your responsibility to scan the email and the attachments (if any). All email received and sent by Civica may be monitored to protect the business interests of Civica.

2 7

[iostreams] zlib_compressor memory leaks in 1.34.0 (release candidate)
by Thomas Pintaric 10 May '07

10 May '07

I noticed that RC_1_34_0 contains an outdated version of /boost/boost/iostreams/filter/zlib.hpp (CVS revision 1.25) which is known to cause memory leaks. On the RC_1_33_0 branch, the problem has apparently been fixed (*) by the author. However, the fix (CVS revision 1.25.2.1) was never merged with the MAIN branch. (*) see: http://boost.cvs.sourceforge.net/boost/boost/boost/iostreams/filter/zlib.hp… You may want to fix this before the final 1.34.0 release. Regards, --Thomas

3 2

[1.34.0] Release Candidate 2
by Thomas Witt 10 May '07

10 May '07

Hi, 1.34.0 release candidate 2 is now available from http://www.boost.org/ release/. It contains the following changes from RC1: - configure update from Doug Gregor - doc updates from John Maddock - read_write_mutex sources removed by Anthony Williams Please give it a try and report any problems to the developer list or directly to me. Unless it's broken in a major way it'll be released unchanged on Friday May 11. Thanks Thomas -- Thomas Witt witt(a)acm.org

1 0

[1.34.0] Release Candidate
by Thomas Witt 10 May '07

10 May '07

Hi, The 1.34.0 release candidate is now available from http:// www.boost.org/release/ please give it a try and report any problems to the developer list or directly to me. The tentative release date is May 11. Thanks Thomas -- Thomas Witt witt(a)acm.org

9 12

[shared_ptr] A newbie boost::shared_ptr question
by Olivier Tournaire 09 May '07

09 May '07

Hi all, I am trying to use shared_ptr in my code, but, I encoutered some problems. Here is a piece of my code : The main : boost::shared_ptr<OGRRectangle> rect( new OGRRectangle(5.,TPoint2D <double>(50.,20.),0.1325) ); boost::shared_ptr< rectangle_with_profile<OGRRectangle> > r( new rectangle_with_profile<OGRRectangle> ( rect , 5 , 12 , 1.5 , EXTREME) ); The rectangle_with_profile<T> constructor : template <class Rect_class> rectangle_with_profile<Rect_class>::rectangle_with_profile( boost::shared_ptr<Rect_class> rect , const unsigned int &nb_profiles , const unsigned int &nb_points , const double &distance , const eProfilePosition &position=CENTER ) { m_rectangle = rect; // ... // ... } Just after the line boost::shared_ptr< rectangle_with_profile<OGRRectangle> > r( new rectangle_with_profile<OGRRectangle> ( rect , 5 , 12 , 1.5 , EXTREME) ); the rect<T> destructor is called, and the m_rectangle in rectangle_with_profile handles a deleted pointer ... What am I missing ? Thanks in advance for your help. -- Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des noyaux. Courage.

3 8

boost::format concurrency issues on mac intel
by Matthew Edwards 09 May '07

09 May '07

I am experiencing some strange errors in a multi-threaded environment on MAC OS X, dual core. I am receiving segfaults, bus errors and illegal instruction crashes regularily with simple calls to boost::format operations. Disabling one of the cores on my machine will completely remove the errors (just fyi). If I add a mutex lock around the calls to boost::format in my sample code (inside the for loop of threadRun) then no problems occur. The following code can be used to reproduce the crash. It occurs perhaps one out of every 10 runs. It can crash (viewed by CrashReporter) in multiple places, mainly in ::parse(), and operator%. I compile with -O0. If it would help, I can post the logs from CrashReporter. #include <stdio.h> #include <stdlib.h> #include <string> #include <boost/thread.hpp> #include <boost/bind.hpp> #include <boost/format.hpp> #define NUM_THREAD 10 #define NUM_ITER 100 void threadRun() { for( int i = 0; i < NUM_ITER; i++ ) { boost::format fmt( "format %1% %2% %3%" ); fmt % "Some message" % 10 % "another str"; } } int main() { boost::thread *threads[NUM_THREAD]; for( int i = 0; i < NUM_THREAD; i++ ) { threads[i] = new boost::thread( &threadRun ); } for( int i = 0; i < NUM_THREAD; i++ ) { threads[i]->join(); delete( threads[i] ); } return 0; } Regards, Matthew

1 2

boost in a mixed CLR assemby
by Daniel J. Kelly 09 May '07

09 May '07

I realize it is not officially supported, but has anyone had success using boost libraries in a mixed CLR assembly? I am using visual studio 2005. I have been trying to accomplish this in an applicatation that has a Windows Forms front end, whose enire back end is build of libraries written in standard C++, making extensive use of boost, especially smart pointers and threads. The specific problem I am having involved initializing static variables. For instance, I have a global variable: boost::mutex osmutex; The program compiles and links fine, but during static initialization, I receive an error indicating _CrtIsValidHeapPointer(pUserData) is invalid. Looking at the stack unwind, the calling code is the "dynamic initializer for 'osmutex'". My suspicion is that the boost library is linking to a different run time library than my mixed code, and that the pointer being rejected is happening as a result of it coming from a different heap. I would like try to check this hypothesis by building boost forcing it to link to the correct C++ runtime library used by mixed assemblies (msvcmrtd.dll), but I am not familar enough with the boost build system to do this.

4 3

[boost::variant] problems with pointers
by Jeffrey Holle 09 May '07

09 May '07

After much inefficient debugging, I've discovered that adding a pointer type to a boost::variant is a no-no. It appears to get translated into a bool via get<>, which throws a bad_get exception erroneously (at least in my opinion). The caviots of using a pointer type in variant really needs to be documented! It doesn't appear to be done so now. I've discovered that wrapping the pointer in a boost::shared_pointer is a solution. But it wasn't obvious.

2 1

[1.34.0] problem building bjam
by Dennis Jones 09 May '07

09 May '07

Hi, I tried reporting this over in the .devel group, but it seems to have been filtered out by the moderator, as it never got posted. However, I believe this is a problem that needs to be addressed. Can someone else confirm this? The build script for building bjam with a Borland compiler on Windows assumes the compiler root folder to be C:\Borland\BCC55. Since my system does not use the free command line Borland compiler (and thus does not use the default path), I specified "borland" as my toolset on the command line: c:> build.bat borland This effectively disables the assumed path and attempts to determine the actual path to the compiler. It successfully and correctly determines the path to be "C:\Program Files\Borland\CBuilder5\," but the script subsequently fails to build, giving the message: [COMPILE] bin.ntx86\bjam.exe Error E2194: Could not find file 'Files\Borland\CBuilder5\Bin\..\Include.cpp' Error E2194: Could not find file 'Files\Borland\CBuilder5\Bin\..\Lib.cpp' Just prior to the error, the following is visible: c:\source\3rdParty\boost\boost_1_34_0\tools\jam\src>.\bootstrap\jam0 -f build.jam --toolset=borland "--toolset-root=C:\Program Files\Borland\CBuilder5\Bin\..\ " Indicating that a path containing spaces ("Program Files") apparently confuses the script. My solution to this problem was to create a path corresponding to the assumed path (using linkd to create a junction-point so that I didn't have to re-install the compiler!) and let the script guess which toolset to use. Fortunately, it guesses correctly (borland as opposed to msvc) which results in the assumed path of "c:\borland\bcc55" which then works, thanks to my junction-point. While I was able to get around this problem fairly easily, it probably would have been more difficult if I were not using NTFS (and its support for junction points). I'm not certain, but I would expect this to be a problem for any compiler whose path contains a space -- or did I miss something that is already well-known and/or obvious? - Dennis

2 3

Re: [Boost-users] Undefined reference
by Carl Wainwright 09 May '07

09 May '07

1 0

Undefined reference
by Carl Wainwright 09 May '07

09 May '07

Hi all, I've started just recently to use boost in my C++ application to manage some threads. However, when I link my application I get strange undefined references g++ -g -O -o test_exe -lcppunit -ldl -lpthread -lboost_thread Main.o test.o test.o(.text+0x874): In function `threadTestCases::spawnThread()': : undefined reference to `boost::thread::thread(boost::function0<void, std::allocator<boost::function_base> > const&)' test.o(.text+0x8b7): In function `threadTestCases::spawnThread()': : undefined reference to `boost::thread::join()' test.o(.text+0x8ce): In function `threadTestCases::spawnThread()': : undefined reference to `boost::thread::~thread()' test.o(.text+0x8eb): In function `threadTestCases::spawnThread()': : undefined reference to `boost::thread::~thread()' collect2: ld returned 1 exit status make: *** [test_exe] Error 1 As you can see I have linked in the boost_thread and pthread but still I get the problem. My LD_LIBRARY_PATH is correctly setup to define the path where boost is installed (/usr/lib/) The code is as follows and is used in a CPPUNIT framework. The boost code is in the spawnThread member function. //--------------------------------------------------------------------- #include "test.h" #include <ostream> #include <pthread.h> #include <boost/thread/thread.hpp> #include <boost/bind.hpp> using namespace std; using namespace boost; CPPUNIT_TEST_SUITE_REGISTRATION( threadTestCases ); void threadTestCases::setUp() { cout << "\nthreadTestCases::setUp\n" << endl ; } void threadTestCases::tearDown() { cout << "\nthreadTestCases::tearDown\n" << endl ; } void threadTestCases::testThread() { cout << "Thread [testThread] spawned\n" << endl; try { CPPUNIT_ASSERT(1 == 2); cout << "Thread end" << endl; } catch(...) { cout << "Exception caught in testThread, continue\n" << endl; } pthread_exit(0); } void *my_thread(void *) { cout << "Thread [my_thread] spawned\n" << endl ; try { CPPUNIT_ASSERT(1 == 2); } catch(...) { cout << "Exception caught in my_thread, continue\n" << endl; } pthread_exit(0); } void threadTestCases::spawnThread() { pthread_t thread[2]; int ret; cout << "\nSpawning new thread\n" << endl; // Create thread via boost boost::thread mfThread(boost::bind(&threadTestCases::testThread, this)); // Start execution of thread mfThread.join(); } Is there anything I have done wrong in the code or perhaps in the build environment which is using Boost library v1.32.0-1 for Linux RedHat with g++ (GCC 3.4.6) Any help would be appreciated as this has been bugging me for several hours today. Cheers Carl

3 2

Re: [Boost-users] Undefined reference
by Carl Wainwright 09 May '07

09 May '07

Hi there, Surely if that was the case I would have received a compilation error. As it is my code compiles without any errors/warnings which makes me think it's a linker error or something else. Additionally the headers for boost are in /usr/include/boost so I don't believe I need to specify this include directive in my makefile The linking error is baffling me as everything checks out ok... Cheers Carl |-----Original Message----- |From: boost-users-bounces(a)lists.boost.org |[mailto:boost-users-bounces@lists.boost.org] On Behalf Of Xu, Peng |Sent: 08 May 2007 18:01 |To: boost-users(a)lists.boost.org |Subject: Re: [Boost-users] Undefined reference | |You need to specify where boost headers are located, |-I/path-to-boost-headers. | |-----Original Message----- |From: boost-users-bounces(a)lists.boost.org |[mailto:boost-users-bounces@lists.boost.org] On Behalf Of Carl |Wainwright |Sent: Tuesday, May 08, 2007 11:56 AM |To: boost-users(a)lists.boost.org |Subject: [Boost-users] Undefined reference | |Hi all, | |I've started just recently to use boost in my C++ application |to manage some threads. However, when I link my application I |get strange undefined references | |g++ -g -O -o test_exe -lcppunit -ldl -lpthread -lboost_thread Main.o |test.o |test.o(.text+0x874): In function `threadTestCases::spawnThread()': |: undefined reference to `boost::thread::thread(boost::function0<void, |std::allocator<boost::function_base> > const&)' |test.o(.text+0x8b7): In function `threadTestCases::spawnThread()': |: undefined reference to `boost::thread::join()' |test.o(.text+0x8ce): In function `threadTestCases::spawnThread()': |: undefined reference to `boost::thread::~thread()' |test.o(.text+0x8eb): In function `threadTestCases::spawnThread()': |: undefined reference to `boost::thread::~thread()' |collect2: ld returned 1 exit status |make: *** [test_exe] Error 1 | |As you can see I have linked in the boost_thread and pthread |but still I get the problem. My LD_LIBRARY_PATH is correctly |setup to define the path where boost is installed (/usr/lib/) | |The code is as follows and is used in a CPPUNIT framework. The |boost code is in the spawnThread member function. | |//--------------------------------------------------------------------- |#include "test.h" |#include <ostream> |#include <pthread.h> | |#include <boost/thread/thread.hpp> |#include <boost/bind.hpp> | |using namespace std; |using namespace boost; | |CPPUNIT_TEST_SUITE_REGISTRATION( threadTestCases ); | |void threadTestCases::setUp() |{ | cout << "\nthreadTestCases::setUp\n" << endl ; } | |void threadTestCases::tearDown() |{ | cout << "\nthreadTestCases::tearDown\n" << endl ; } | |void threadTestCases::testThread() |{ | cout << "Thread [testThread] spawned\n" << endl; | | try | { | CPPUNIT_ASSERT(1 == 2); | cout << "Thread end" << endl; | } | catch(...) | { | cout << "Exception caught in testThread, continue\n" << endl; | } | | pthread_exit(0); |} | |void *my_thread(void *) |{ | cout << "Thread [my_thread] spawned\n" << endl ; | | try | { | CPPUNIT_ASSERT(1 == 2); | } | catch(...) | { | cout << "Exception caught in my_thread, continue\n" << endl; | } | | pthread_exit(0); |} | |void threadTestCases::spawnThread() |{ |pthread_t thread[2]; |int ret; | | cout << "\nSpawning new thread\n" << endl; | | // Create thread via boost | boost::thread mfThread(boost::bind(&threadTestCases::testThread, |this)); | | // Start execution of thread | mfThread.join(); |} | | |Is there anything I have done wrong in the code or perhaps in |the build environment which is using Boost library v1.32.0-1 |for Linux RedHat with |g++ (GCC 3.4.6) | |Any help would be appreciated as this has been bugging me for |several hours today. | |Cheers |Carl |_______________________________________________ |Boost-users mailing list |Boost-users(a)lists.boost.org |http://lists.boost.org/mailman/listinfo.cgi/boost-users |_______________________________________________ |Boost-users mailing list |Boost-users(a)lists.boost.org |http://lists.boost.org/mailman/listinfo.cgi/boost-users |

1 0

Serialisation across libraries.
by Hughes, James 09 May '07

09 May '07

Hello all, I am a bit stumped by a problem I am seeing with serialisation, and wondered whether it may be due to the way I sue some libraries. I have two libraries, one which contains the main code that uses serialisation, and another which contains some small classes used by the main code. The main code serialises a tree like data structure containing some shared pointers, each node of the 'tree' contains member data, and its one of these members that is causing a double free or corruption error on loading. This particular member is a structure from the other library. It contains a serialisation template in the class header which appears to save correctly - the XML output all appears correct. However on loading the double free error occurs. I cannot see anything wrong with the code at all. The only thing I can think of is that there are limitations in doing serialisation across the library boundary. Perhaps I end up with two instantiations of the template for serialisation? One in the main library, and one in the small library? Am I clutching at straws? DO I somehow have to force the instantiation of the serialisation for the class in the sub library to be in there, rather than being created again in the main library? Any thoughts? James This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

4 7

[1.34] Building 64-bit boost
by Alexey Bakhvalov 09 May '07

09 May '07

I am using MSVC 2005. Which toolset or flags do I need to specify to build 64-bit version of Boost?

1 0

[thread] Out of order problem signalling a condition and waiting on a predicate
by Kirit Sælensminde 09 May '07

09 May '07

I'm not entirely sure what's going on, but I seem to be having some trouble with the predicate wait() where the predicate is true but the waiting thread is still blocked. I'm sure I'm doing something daft so here is a description with the relevant code in the hope that somebody can point it out to me. I'm using MSVC 7.1 and Boost 1.34.0 on a dual-core computer. What I've done is to build on the basic boost::thread primitives to make a pool of worker objects that can have tasks allocated to them. A good starting point is the queuing of work done through this code (a member of class Worker): boost::shared_ptr< Join< void > > operator()( boost::function0< void > f ) { boost::shared_ptr< Join< void > > join( new Join< void > ); queue( join, f ); return join; } Join< void > is really a future for a task that has no return value. Join< T > (where a T is returned by the task) is implemented in terms of this primitive. The queue() function adds the job to a queue and then signals its worker thread that there is something to do: void FSLib::Worker::queue( boost::shared_ptr< Join< void > > join, boost::function0< void > f ) { boost::mutex::scoped_lock lock( m_mutex ); m_queue.push_back( std::make_pair( join, f ) ); m_control.notify_all(); } The boost::thread is initialised with a static function which waits for items to appear in its queue, performs the function and then notifies the Join object of the results. The function looks like this: void FSLib::Worker::execute() { FSLib::Exceptions::StructuredHandler handler; do { t_queue job; { // Find a job to perform boost::mutex::scoped_lock lock( m_mutex ); if ( m_queue.empty() ) m_control.wait( lock ); if ( !m_terminate && !m_queue.empty() ) job.swap( m_queue ); } for ( t_queue::const_iterator j( job.begin() ); j != job.end() && !m_terminate; ++j ) { // Execute job try { j->second(); } catch ( FSLib::Exceptions::Exception &e ) { boost::mutex::scoped_lock lock( m_mutex ); j->first->m_exception = toString( e ); } catch ( ... ) { boost::mutex::scoped_lock lock( m_mutex ); j->first->m_exception = L"An unknown exception was caught"; } // Notify joins boost::mutex::scoped_lock lock( m_mutex ); j->first->m_completed = true; j->first->m_control.notify_all(); } } while ( !m_terminate ); } (I suspect that I shouldn't be catching all exceptions, but in any case no exceptions are thrown when the problem occurs.) The critical part is at the end. It sets a flag on the Join object and then notifies it's condition object. The Join< void > class looks like this: template<> class F3UTIL_DECLSPEC Join< void > { protected: Join(); public: virtual ~Join(); void wait(); Nullable< wstring > exception(); private: volatile bool m_completed; Nullable< wstring > m_exception; boost::mutex m_mutex; boost::condition m_control; friend void Worker::execute(); friend boost::shared_ptr< Join< void > > Worker::operator()( boost::function0< void > f ); }; The flag is marked volatile which according to Microsoft's documentation ensures that writes to memory happen immediately and the flag will be read from memory every time it is accessed. When the result of the operation is needed then wait() or exception() is called (wait() simply calls exception() but throws a new exception if one was caught). Here is exception(): Nullable< wstring > FSLib::Worker::Join< void >::exception() { boost::mutex::scoped_lock lock( m_mutex ); m_control.wait( lock, boost::lambda::bind( &Join< void >::m_completed, this ) ); return m_exception; } What happens is that once in every few thousand operations it looks like the signals get confused. The waiting thread is stuck inside the condition's wait member even though the predicate is true (it doesn't make any difference if I re-write the exception() member with an explicit while loop). All the worker threads are at the beginning of execute() with empty queues. Because the condition object has already been signalled by the worker thread the Join object gets stuck forever. I think I've got all of the mutexes in the right places, but I think I must be missing something important. I guess there is also a small chance that this is a bug in the boost::thread library (I'm using 1.34.0). I could work around it by sharing a condition between all of the joins. This would massively reduce the probability of this hanging the application (as happens now), but I don't think it would fundamentally solve the problem. Another workaround would be to use the timed wait() functions, but I can't see from the documentation how I'd actually manage to set an xtime up such that it would wake up after a few hundred milliseconds. Another workaround would involve a busy wait - checking maybe every hundred milliseconds, but I'm really loathe to do that. As I say, I'm sure I've missed something, but can't for the life of me work out what it is. K

3 4

boost::timer is not a standard sleep
by Yunior Peralta González 09 May '07

09 May '07

I don't know why but the boost::timer does work well. Please, look at the following example bellow and if any idea let me know. #include <boost/timer.hpp> #include <iostream> #include <unistd.h> int main() { boost::timer timer; sleep(1); /* block until one second has elapsed */ std::cout << timer.elapsed() << std::endl; /* show the elapsed time (one second expected) */ return 0; } Though I am not sure I thing the timer just have in mind the time the processor was busy and not the time the application was running. Has the boost library any standard sleep(), I have heard boost::asio has a very good one. Thanks in advance.

1 0

member_of: a pointer to member trait
by Bernabe Cantos 09 May '07

09 May '07

Hello, I'm using BOOST libraries in my developments. I need a trait returning the class type from a pointer to member type. An example: member_of<int(A::*)(void)>::type // this equals to 'A' member_of<void(B::*)(int) const>::type // this equals to 'B const' member_of<void(void)>::type // this equals to an undefined struct I don't know if the functionality I need exists in BOOST. I hope so. If not, should it be difficult to provide? Maybe doing some modifications to is_member_function_pointer. Thanks in advance

1 1

Building Boost 1.34.0 libraries with bjam
by Richard Hadsell 09 May '07

09 May '07

Options for building the Boost libraries with bjam seem to have changed from 1.33 to 1.34. At least, I can't be sure that the result will be the same. I looked at the 1.34.0 beta docs and the common.jam and gcc.jam files, but I am still unsure of what to do. I built the 1.33.x libraries this way: setenv PYTHON_VERSION 2.3 bjam -sTOOLS=gcc -sGCC_ROOT_DIRECTORY=/opt/gcc344 -sGXX="g++344 -m64" -sGCC="gcc344 -m64" --with-python-root=/usr --stagedir=stageFC3 -sBUILD="debug release <threading>multi <shared-linkable>true <instruction-set>opteron" stage Most of the options make it obvious what I want. The '<shared-linkable>true' option was necessary to add '-fPIC', which our binaries need in order to dynamically link (plug-in) shared libraries. I will appreciate any help you can offer in making the transition to 1.34.0 easier. BTW, it would be nice to see a list of available options for each toolset that comes with Boost bjam. -- Dick Hadsell 914-259-6320 Fax: 914-259-6499 Reply-to: hadsell(a)blueskystudios.com Blue Sky Studios http://www.blueskystudios.com 44 South Broadway, White Plains, NY 10601

7 10

BoostMultiArray & polymorphic access
by Terence Wilson 09 May '07

09 May '07

Hello, We have an image processing application that needs to process N-D data of various numeric types & sizes. Boost MultiArray looks like a pretty good match for our requirements, but I'm struggling to understand how I should structure my code. I would like to have a single type, an Image class say, that can host MultiArray's of all our supported types at runtime i.e. it would not be a class template, however, this would require switch statements to drill-down on the template type of the MultiArray before access. Is there a cleaner way? Thanks, Terence

2 1

2007 Boost Conference is Next Week!
by David Abrahams 08 May '07

08 May '07

Hi Everyone, As you probably know, Boost holds its first annual conference next week (http://boostcon.com) Since we first announced the conference, there have been a couple of recent additions to the already stellar program (http://www.boostcon.com/program) most notably a ConceptGCC InstallFest, so every attendee can have a toolchain with some of the most important C++0x features already implemented (http://www.boostcon.com/program/sessions#gregor-conceptgcc-installfest) There are still a few places left; if you have been thinking of coming, now is the time to take action! Onsite registrations will be accepted Sunday May 13 from 4-6pm in the big entry lounge of Aspen Meadows. If you're planning to register onsite, you should still book a hotel room ASAP (http://www.boostcon.com/location/lodging#reservations) Please send any questions to boostcon-plan-AT-lists.boost-consulting.com See you in Aspen! -- Dave Abrahams Boost Consulting http://www.boost-consulting.com Don't Miss BoostCon 2007! ==> http://www.boostcon.com

1 0

Re: [Boost-users] boost::bind, C++ member function and C callback function
by Li, PingShan (Kansas City) 08 May '07

08 May '07

Changing the OpenSSL API is not an option for me. Let's assume that the callback function accepts a void* parameter, can you show me an example that I can bind C++ member function to a C callback function? Thank you > I got the following error under VC++ 7.1: > > error C2664: 'CRYPTO_set_id_callback' : cannot convert > parameter 1 from 'boost::_bi::bind_t<R,F,L>' to > 'unsigned long (__cdecl *)(void)' > with > [ > R=unsigned long, > F=boost::_mfi::mf0<unsigned long,Test>, > L=boost::_bi::list1<boost::_bi::list_av_1<Test *>::B1> > ] > No user-defined-conversion operator available that > can perform this conversion, or the > operator cannot be called It doesn't even take in void *???? Maybe the fact that it doesn't take in state means something. You should look up that specific callback in the openssl documentation > Is it possible to use boost::bind to bind a C++ member > function as a callback function for C > interface? Its easy given that said C interface allows the user to pass in "other data" a la void *.

2 1