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Problem Using Bjam V2
by Wu Yinghui, Freddie 07 Feb '07

07 Feb '07

Hi all, I've been using bjam v1 in 1.33 to build my Boost, and everything went smoothly. I tried lately to grab the latest Boost from CVS in order to preview its upcoming feature, but I faced problems building it using the new bjam v2. My system: Windows XP Pro SP2 Compiler: MSVC 7.1 First of all, I'd like to build Boost with STLport 5.1.0 (the latest STLport release). In the old bjam, I could use the vc_7_1-stlport toolset to activate STLport. In the new bjam, I found that the <stdlib> option was always set to "native" when I run bjam with --debug-building. (I've enabled "using stlport" in user-config.jam".) So how do I activate STLport? Secondly, I downloaded Zlib and Libbz2 source and wanted to build Boost.IOStream with zip and bzip2 support. In the old bjam, I could set ZLIB_INCLUDE, etc. environment variables and then Boost will find the necessary headers and libraries. In the new bjam, I always get an error complaining zlib.h not found even though I've already set the environment variables properly. How do I go about doing this? Lastly, due to our project requirements, I need to provide some customized compiler options when building Boost. In the old bjam, I could use -sBUILD=<cxx-flags>option to do so. But these flags doesn't seem effective with the new bjam (I don't see them when using -d+2 to check the compiler parameters). So how do I go about doing this? Thanks, Freddie -- Wu Yinghui, Freddie Senior Software Engineer Advanced Technology Research and Development Group Volume Interactions Pte Ltd 1 Kim Seng Promenade #12-01 Great World City East Tower Singapore 237994 Tel: +65 62226962 (Ext 216) Fax: +65 62226215 Email: yhwu(a)volumeinteractions.com URL: http://www.volumeinteractions.com http://www.dextroscope.com Important: This message is intended for the recipient(s) addressed above. It contains privileged and confidential information. If you are not the intended recipient, please notify the sender immediately by replying to this message and then delete it from your system. You must not read, copy, use, or disseminate this communication in any form. Thank you.

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get time in different zone
by Fred J. 07 Feb '07

07 Feb '07

Dear all. I am trying to get New York time in time_t epoch now. my PC is set to Sydney time. please help thanks here is my effort fro the last 4 hours. #include <fstream> #include <ios> #include <iostream> #include <string> #include "boost/date_time/local_time/local_time.hpp" #include "boost/date_time/posix_time/posix_time.hpp" #include "boost/date_time/local_time_adjustor.hpp" #include "boost/date_time/c_local_time_adjustor.hpp" using namespace std; int main(){ using namespace boost::gregorian; using namespace boost::local_time; using namespace boost::posix_time; // now time is ptime now = second_clock::local_time(); // current PC time cout << "Your computer time is: " << now << endl; // typedef boost::date_time::c_local_adjustor<ptime> local_adj; // // create a sydney time // ptime sydtime(date(2007,02,07), hours(12)+minutes(9)+seconds(32)); // cout << "Sydney local time is: " << to_simple_string( sydtime ) << endl; // load time zone conversion date form file tz_database tz_db; tz_db.load_from_file("../date_time_zonespec.csv"); time_zone_ptr nyc_tz = tz_db.time_zone_from_region("America/New_York"); time_zone_ptr syd_tz = tz_db.time_zone_from_region("Australia/Sydney"); // create a sydney time from date and time_duration date in_date(2007,02,07); time_duration td(12,25,32); local_date_time sydtime(in_date, td, syd_tz, local_date_time::NOT_DATE_TIME_ON_ERROR); cout << "Sydney time is: " << sydtime << endl; cout << "in UTC it is: " << sydtime.utc_time() << endl; // // convrt sydney to utc // ptime syd_t_utc = local_adj::local_to_utc( sydtime ); // cout << "UTC time is: " << to_simple_string( syd_t_utc ) << endl; // // conver it to new york // time_zone_ptr nyc_tz = tz_db.time_zone_from_region("America/New_York"); // ptime nytime = nyc_tz::utc_to_local( nyc_tz ); // cout << "New York local time is: " << to_simple_string( nyctime ) << endl; } --------------------------------- Any questions? Get answers on any topic at Yahoo! Answers. Try it now.

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Undefined symbol
by Jojy Varghese 07 Feb '07

07 Feb '07

Hi all I am getting a link error while running my application that uses boost regex library. Here is the error message: undefined symbol: _ZN5boost9re_detail12perl_matcherIPKcN4_STL9allocatorINS_9sub_matchIS3_E EEENS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE14construct_initERKNS_ 11basic_regexIcSC_EENS_15regex_constants12_match_flagsE Any help is appreciated. thanks in advance Jojy

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[boost::fusion] set_c or vector_c in fusion?
by Ovanes Markarian 07 Feb '07

07 Feb '07

Hello all! Does someone know if the fusion library has some analog to mpl::sec_c or mpl::vector_c? Or is there any way to pass mpl::set_c as a template parameter to fusion::set class? Thanks a lot, Ovanes

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Re: [Boost-users] [date_time] timezone rules for different years
by Stephen Turner 06 Feb '07

06 Feb '07

> -----Original Message----- > From: Stephen Turner [mailto:sturner@clicktracks.com] > Sent: 22 December 2006 16:39 > To: 'boost-users(a)lists.boost.org' > Subject: [date_time] timezone rules for different years > > For my application, I need to be able to get the local time > of any UTC time in the last five years in any location. > > As far as I can see, the date_time library doesn't provide > this. The documentation says that date_time_zonespec.csv is > "based on data found in the zoneinfo datebase", but whereas > the zoneinfo database contains historical information about > daylight saving time changes, date_time_zonespec.csv only > seems to allow you to specify a single rule for each > timezone. And I can't find another mechanism to do it. > > Am I missing something, or is this capability not present? > And if not, is there any plan to add it? Or a workaround? I > anticipate that this will become more of a problem when the > rules for the U.S. change by several weeks next year. > I'm not sure whether this one got lost in the holiday break, or whether there's nobody who's familiar with the internals of this library on this list, but let me try again. I've been trying to work out how to add the capability to have different timezone rules in different years to the library. It seems to me it's not too hard (although I'm nervous of making such a judgement in code I'm not familiar with). I think all that's needed is: 1) In class custom_time_zone, the rules should depend on y, rather than there just being one set of rules. 2) The date_time_zonespec.csv file would have to have extra columns for years a rule applied to. tz_db_base::parse_string would have to parse them, and instead of creating a new timezone for each line, add the rule to the appropriate timezone if it had already been seen once. Is there anything else that would need to be done? Actually, I think the hardest part would be populating the date_time_zonespec.csv file. Is there already a program to generate that file from the zoneinfo files, or was it done semi-by-hand? Thanks, -- Stephen Turner, Cambridge, UK http://homepage.ntlworld.com/adelie/stephen/ "The internet is a reflection of our society. If we do not like what we see, the problem is not to fix the mirror, we have to fix society." (Vint Cerf)

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Receiving a bad_weak_ptr exceptions when using shared_from_this()
by Stephen Torri 06 Feb '07

06 Feb '07

Using the enable_share_from_this template I am receiving a bad_weak_ptr exception when calling shared_from_this(). What are the common reason for receiving such an exception? Stephen

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FW: Linker errors when using regex Lib with MSVC8 and STLPort 5.1.0 and Boost 1_33_1
by Manish Mangal 06 Feb '07

06 Feb '07

Hi I have built the StlPort 5.1.0 shared dlls and boost 1_33_1 Shared dlls successfully. The Platform is MSVC8. I created a sample projeth with just on file with code: #include <boost/regex.hpp> bool testregex( const char* StringToMatch ) { return( boost::regex_match( StringToMatch, boost::regex("[A-Z]+") )); } int main (int argc, char *argv[]) { bool trial = testregex( "hello how r u ?"); return 1; } Compilation succeeds but I get two Linker errors (BOOST_DYN_LINK is defined) Main.obj : error LNK2001: unresolved external symbol "public: bool __thiscall boost::re_detail::perl_matcher<char const *,class stlp_std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::match(void)" (?match@?$perl_matcher@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlp_std @@U?$regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@re_detail@boost @@QAE_NXZ) 1>Main.obj : error LNK2001: unresolved external symbol "public: __thiscall boost::re_detail::perl_matcher<char const *,class stlp_std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >::perl_matcher<char const *,class stlp_std::allocator<struct boost::sub_match<char const *> >,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > >(char const *,char const *,class boost::match_results<char const *,class stlp_std::allocator<struct boost::sub_match<char const *> > > &,class boost::basic_regex<char,struct boost::regex_traits<char,class boost::w32_regex_traits<char> > > const &,enum boost::regex_constants::_match_flags,char const *)" (??0?$perl_matcher@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlp_std@@U? $regex_traits@DV?$w32_regex_traits@D@boost@@@boost@@@re_detail@boost@@QA E@PBD0AAV?$match_results@PBDV?$allocator@U?$sub_match@PBD@boost@@@stlp_s td@@@2@ABV?$basic_regex@DU?$regex_traits@DV?$w32_regex_traits@D@boost@@@ boost@@@2@W4_match_flags@regex_constants@2@0@Z) So it cannot find the constructor for perl_matcher and the declaration for regex_match. I found a similar post on Boost : http://www.nabble.com/-regex-Using-regex-in-x64-exe-with-VC-8.0-t2088061 .html#a5755051 The suggested solutions on this post are: 1) check for intermixing of x86 and x64 : I am on 32 bit platform.. so intermixing does not apply 2) add regex source code and compile ( using BOOST_REGEX_NO_LIB) : I get the errors for stdext namespace 1>C:\boost_1_33_1\boost/regex/v4/regex_workaround.hpp(145) : error C2653: 'stdext' : is not a class or namespace name 1> C:\boost_1_33_1\boost/regex/v4/regex_format.hpp(562) : see reference to function template instantiation 'OutputIterator boost::re_detail::copy<const charT*,OutputIterator>(InputIterator,InputIterator,OutputIterator)' being compiled 1> with 1> [ 1> OutputIterator=boost::re_detail::string_out_iterator<stlp_std::basic_str ing<wchar_t,stlp_std::char_traits<wchar_t>,stlp_std::allocator<wchar_t>> >, 1> charT=wchar_t, 1> InputIterator=const wchar_t * 1> ] 1> C:\boost_1_33_1\boost/regex/v4/match_results.hpp(160) : see reference to function template instantiation 'OutputIterator boost::re_detail::regex_format_imp<boost::re_detail::string_out_iterator <S>,const wchar_t*,stlp_std::allocator<_Tp>,_CharT,boost::re_detail::trivial_forma t_traits<charT>>(OutputIterator,const boost::match_results<BidiIterator> &,const charT *,const charT *,boost::regex_constants::match_flag_type,const traits &)' being compiled 1> with 1> [ 1> OutputIterator=boost::re_detail::string_out_iterator<stlp_std::basic_str ing<wchar_t,stlp_std::char_traits<wchar_t>,stlp_std::allocator<wchar_t>> >, 1> S=stlp_std::basic_string<wchar_t,stlp_std::char_traits<wchar_t>,stlp_std ::allocator<wchar_t>>, 1> _Tp=boost::sub_match<const wchar_t *>, 1> _CharT=wchar_t, 1> charT=wchar_t, 1> BidiIterator=const wchar_t *, 1> traits=boost::re_detail::trivial_format_traits<wchar_t> 1> ] 1> C:\boost_1_33_1\boost/regex/v4/match_results.hpp(156) : while compiling class template member function 'stlp_std::basic_string<_CharT,_Traits,_Alloc> boost::match_results<BidiIterator>::format(const stlp_std::basic_string<_CharT,_Traits,_Alloc> &,boost::regex_constants::match_flag_type) const' 1> with 1> [ 1> _CharT=wchar_t, 1> _Traits=stlp_std::char_traits<wchar_t>, 1> _Alloc=stlp_std::allocator<wchar_t>, 1> BidiIterator=const wchar_t * 1> ] 1> C:\boost_1_33_1\boost/regex/v4/instances.hpp(86) : see reference to class template instantiation 'boost::match_results<BidiIterator>' being compiled 1> with 1> [ 1> BidiIterator=const wchar_t * 1> ] 1>C:\boost_1_33_1\boost/regex/v4/regex_workaround.hpp(145) : error C3861: 'unchecked_copy': identifier not found Can anyone suggest a solution?? Thanks in advance Manish Mangal Software Engineer atlas(r) search Partner for Results 206-816-8349 // phone Manish.Mangal(a)AtlasSolutions.com <mailto:t-Matt.Koch@AtlasSolutions.com> // email www.AtlasSolutions.com <outbind://116-000000001368D4B5F8F6D0488191444C76FD7C9507008921F4CB773B0 545AAED425DEF553BC300003A3500100000DB0C51F64BED3447AA6EC585072C4EC300000 1E3B7A70000/jenniferh/Local%20Settings/Temporary%20Internet%20Files/OLK3 /www.AtlasSolutions.com> // web

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help needed building boost_1_34 with v2
by David P. Riedel 06 Feb '07

06 Feb '07

Hi I have checked out the latest boost_1_34 RC from svn and am trying to build it for the first time. For various reasons, I have both gcc and Python in 'non-standard' locations on my linux box. For the v1 build system, I used the following command to build the libraries bjam -a --without-wave --without-test --prefix=/usr/local/boost-1.34.0_gcc-4.1.1 --includedir=/usr/local/boost-1.34.0_gcc-4.1.1 "-sTOOLS=gcc" "-sGCC_ROOT_DIRECTORY=/usr/local/gcc-4.1.1" "-sPYTHON_ROOT=/usr/local/python-2.4.4_gcc-4.1.1" "-sPYTHON_VERSION=2.4" stage This doesn't work with v2 build. The getting started help page still seems to have the v1 related information. So my question is: what would be the v2 bjam that corresponds to the v1 version above? Thanks for any help. Dave Riedel

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Linking issues with regex library on redhat
by Jojy Varghese 06 Feb '07

06 Feb '07

Hi all, I am a new user of boost library. I am having trouble trying to link the boost regex library. The applications craps out giving an error message like undefined symbol: _ZN5boost11basic_regexIcNS_12regex_traitsIcNS_16cpp_regex_traitsIcEEEEE9 do_assignEPKcS7_j I have all the regex .so files in my LD_LIBRARY_PATH. Am I missing something? thanks in advance for the help, Jojy

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[statechart] : asynchronous_state_machine - access member functions
by Oliver.Kowalke＠qimonda.com 06 Feb '07

06 Feb '07

Hello, Is it possible to access public member functions of an asynchronous_state_machine (for instance bool terminated() ) from processor_handle (fifo_scheduler<>::create_processor() returns as processor_handle)? Regards, Oliver

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