January 2007 - Boost-users - lists.preview.boost.org

Re: [Boost-users] [date_time] timezone rules for different years
by Stephen Turner 10 Jan '07

10 Jan '07

> -----Original Message----- > Date: Wed, 10 Jan 2007 08:12:18 -0700 > From: Jeff Garland <jeff(a)crystalclearsoftware.com> > > Yes, sorry I was off the net on holiday for an extended > period :-) Finally getting caught up now... > Thanks! > I would recommend that this be created as an alternative > tz_database class -- > something like 'historic timezone database'. My experience > is that must > applications don't need the historic data and hence only > really care about > loading up the current set of rules. I'm sure that's true for many users. But I also wonder how many users there are who do care but haven't had a problem until now because they're in countries where the rules haven't changed in recent years, so it's just worked. But let me put it the other way round. If a historical database were available, why would anyone choose to still use the existing method? Assuming the new method didn't impose a noticeable speed or memory constraint, of course. -- 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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Re: [Boost-users] Support for extended Daylight Saving Time in 2007
by Stephen Turner 10 Jan '07

10 Jan '07

> Date: Wed, 10 Jan 2007 08:17:38 -0700 > From: Jeff Garland <jeff(a)crystalclearsoftware.com> > > Yep, in fact I was looking for someone that has time to look > at this carefully > to do this update and send me a patch -- someone about a > month ago said they > would do this, but haven't seen anything yet. You certainly need to change 1;0;4 to 2;0;3 and -1;0;10 to 1;0;11 for all U.S. and Canadian locations. (At least, all locations that observe DST). I have read that Mexico isn't changing, but I'm not sure about Caribbean or Central American countries. -- 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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[Threads] join_all() strange behavior?
by Manuel Jung 10 Jan '07

10 Jan '07

Hi, I have a strange problem. The destructor of a class calls join_all(). But it seems that he hangs there. Even though some other code behind the join_all() is executed before it finishs! Lets get concret: seal::~seal() { ThgPrgs.join_all(); cout<<"Crabd quits, goodbye"<<endl; } When i run my program, the last message is "Crabd quits, goodbye" and it should exit then, but it doesnt. If i stop it running in gdb an do a backtrace i get the following: #0 0xffffe410 in __kernel_vsyscall () #1 0xb7c796c8 in pthread_join () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7d21e6a in boost::thread::join () from /usr/local/lib/libboost_thread-gcc-mt-1_33_1.so.1.33.1 #3 0xb7d224ee in boost::thread_group::join_all () from /usr/local/lib/libboost_thread-gcc-mt-1_33_1.so.1.33.1 #4 0x0808742c in ~seal (this=0x80c9890) at src/seal.cpp:20 #5 0x0808eb55 in checked_delete<seal> (x=0x80c9890) at /usr/local/include/boost/checked_delete.hpp:34 #6 0x0809566a in boost::detail::sp_counted_impl_p<seal>::dispose (this=0x80dc410) at /usr/local/include/boost/detail/sp_counted_impl.hpp:76 #7 0x0805950f in boost::detail::sp_counted_base::release (this=0x80dc410) at /usr/local/include/boost/detail/sp_counted_base_gcc_x86.hpp:145 #8 0x08059555 in ~shared_count (this=0x8103e04) at /usr/local/include/boost/detail/shared_count.hpp:159 #9 0x0808dd1c in ~shared_ptr (this=0x8103e00) at src/seal.h:39 #10 0x08089182 in ~tcp_connection (this=0x8103df8) at src/seal.cpp:212 #11 0x08094273 in checked_delete<tcp_connection> (x=0x8103df8) at /usr/local/include/boost/checked_delete.hpp:34 #12 0x080967d0 in boost::detail::sp_counted_impl_p<tcp_connection>::dispose (this=0x80dcf00) at /usr/local/include/boost/detail/sp_counted_impl.hpp:76 #13 0x0805950f in boost::detail::sp_counted_base::release (this=0x80dcf00) at /usr/local/include/boost/detail/sp_counted_base_gcc_x86.hpp:145 #14 0x08059555 in ~shared_count (this=0x80dc4e8) at /usr/local/include/boost/detail/shared_count.hpp:159 #15 0x0808ddc6 in ~shared_ptr (this=0x80dc4e4) at src/seal.h:66 #16 0x0808e69f in ~value (this=0x80dc4e4) at src/seal.cpp:232 #17 0x0808e700 in ~list3 (this=0x80dc4e0) at src/seal.cpp:232 #18 0x0808e766 in ~bind_t (this=0x80dc4d8) at src/seal.cpp:232 #19 0x080910a7 in ~accept_handler (this=0x80dc4c0) at /usr/local/include/boost/asio/detail/reactive_socket_service.hpp:1228 ---Type <return> to continue, or q <return> to quit--- #20 0x08095595 in ~op (this=0x80dc4b0) at /usr/local/include/boost/asio/detail/reactor_op_queue.hpp:355 #21 0x080918db in boost::asio::detail::reactor_op_queue<int>::op <boost::asio::detail::reactive_socket_service<boost::asio::ip::tcp, boost::asio::detail::epoll_reactor<false> >::accept_handler<boost::asio::basic_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::_bi::bind_t<void, boost::_mfi::mf2<void, tcp_server, boost::shared_ptr<tcp_connection>, boost::asio::error const&>, boost::_bi::list3<boost::_bi::value<tcp_server*>, boost::_bi::value<boost::shared_ptr<tcp_connection> >, boost::arg<1> > > > >::destroy_handler (base=0x80dc4b0) at /usr/local/include/boost/asio/detail/reactor_op_queue.hpp:355 #22 0x080709d2 in boost::asio::detail::reactor_op_queue<int>::op_base::destroy (this=0x80dc4b0) at /usr/local/include/boost/asio/detail/reactor_op_queue.hpp:294 #23 0x0806df75 in boost::asio::detail::reactor_op_queue<int>::destroy_operations (this=0x80c99a8) at /usr/local/include/boost/asio/detail/reactor_op_queue.hpp:245 #24 0x0806d677 in boost::asio::detail::epoll_reactor<false>::shutdown_service (this=0x80c9970) at /usr/local/include/boost/asio/detail/epoll_reactor.hpp:108 #25 0x0806c2ec in ~service_registry (this=0x80c98d8) at /usr/local/include/boost/asio/detail/service_registry.hpp:53 #26 0x0806ba81 in ~io_service (this=0x80c98d4) at src/seal.cpp:8 #27 0x08087648 in ~seal (this=0x80c9890) at src/seal.cpp:32 #28 0x0808eb55 in checked_delete<seal> (x=0x80c9890) at /usr/local/include/boost/checked_delete.hpp:34 #29 0x0809566a in boost::detail::sp_counted_impl_p<seal>::dispose (this=0x80da710) at /usr/local/include/boost/detail/sp_counted_impl.hpp:76 #30 0x0805950f in boost::detail::sp_counted_base::release (this=0x80da710) at /usr/local/include/boost/detail/sp_counted_base_gcc_x86.hpp:145 #31 0x08059555 in ~shared_count (this=0xbfa2e124) at /usr/local/include/boost/detail/shared_count.hpp:159 #32 0x0808dd1c in ~shared_ptr (this=0xbfa2e120) at src/seal.h:39 #33 0x080a8d68 in boost::shared_ptr<seal>::reset (this=0x80c8824) at /usr/local/include/boost/shared_ptr.hpp:231 #34 0x080a863e in main (argc=1, argv=0xbfa2e204) at src/crabd.cpp:71 The class seal holds some other classes in shared_ptrs which are will be destroyed in this moment too. Some of them have also a join_all() in their destructors. Im wondering if they produce the lock? But the main question here is: I read "Crabd quits, goodbye" and after this i stop the program and i get in the backtrace from gdb the line "#4 0x0808742c in ~seal (this=0x80c9890) at src/seal.cpp:20". And Line 20 in seal.cpp is the line with join_all(). How is this possible, though join_all should block? Thanks for your help and for reading this. Manuel Jung, Germany

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Re: [Boost-users] Support for extended Daylight Saving Time in 2007
by Stephen Turner 10 Jan '07

10 Jan '07

> Date: Mon, 8 Jan 2007 21:25:24 -0500 > From: "Eric Yankowitz" <nnews(a)swiftdesign.com> > Subject: [Boost-users] Support for extended Daylight Saving Time in > 2007 > > Been trying to find information describing boost's level of > support for the > four week Daylight Saving Time extension in the US that will > occur this > March. > (http://geography.about.com/cs/daylightsavings/a/dst.htm), I haven't > been able to find very much. A lot of software is having > issues and was > wondering if Boost was ready for the event? > > Was able to find these links, which suggested issues: > > > http://sourceforge.net/tracker/index.php?func=detail&aid=14717 > 23&group_id=7586&atid=207586 > > > http://sourceforge.net/tracker/index.php?func=detail&aid=14786 > 19&group_id=7586&atid=207586 > > Any idea if these are being resolved? And if any others exist? > Eric, I'm a new user of this code, so take everything I say with the appropriate amount of caution, but I have looked into this question a little. My conclusion is that the date_time library is still shipping with the old timezone rules at the moment. It's easy to change the date_time_zonespec.csv file to use the new rules instead (you can do that yourself, and I assume that the official version will do it soon too). However, at the moment the code doesn't seem to support different timezone rules for different years, so once you've changed it, you're out of luck if you want to look up times in 2006. See my previous post about this subject at http://article.gmane.org/gmane.comp.lib.boost.user/23837 Hope that helps, -- 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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Boost: unordered library installation problem
by chun ping wang 10 Jan '07

10 Jan '07

I tried building the boost unordered library and i get like this error. exactly how do i build the boost unordered library. 'boost-build C:\cygwin\home\Chun ping Wang\boostBeta\unordered/../boost/tools /build/v2 ;' but we were unable to find "bootstrap.jam" in the specified directory or in BOOST_BUILD_PATH (searching C:\cygwin\home\Chun ping Wang\boostBeta\unorde red/../boost/tools/build/v2).

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BOOST_CHECK and functions with more than one template parameter
by Rob Caldecott 09 Jan '07

09 Jan '07

I am trying to test a template function that takes two template parameters, and, because of the "comma in macros" compiler issue, I have hit a brick wall. For example: template<typename T1, typename T2> int func(const T1& t1, const T2& t2) { ... } BOOST_CHECK_EQUAL(func<std::string, int>("Test", 1234), 1234); When compiling BOOST_CHECK_EQUAL above, I get an error due to the comma between std::string and int. As this is a function, I cannot use typedef, and trying to #define a workaround also fails (I am using VS2005). Any ideas how I can test template functions with more than one template parameter? Thanks in advance.

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GCC_BIN_DIRECTORY problem
by remi 09 Jan '07

09 Jan '07

hi i cross compile boost but i see that it impossible tu use the correct GCC with the command GCC_BIN_DIRECTORY How can i compile with another gcc ??!! best regards __________________________________________________ Do You Yahoo!? En finir avec le spam? Yahoo! Mail vous offre la meilleure protection possible contre les messages non sollicités http://mail.yahoo.fr Yahoo! Mail

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Re: [Boost-users] [date_time] timezone rules for different years
by Stephen Turner 09 Jan '07

09 Jan '07

> -----Original Message----- > From: Stephen Turner [mailto:sturner@clicktracks.com] > Sent: 04 January 2007 16:02 > To: 'boost-users(a)lists.boost.org' > Subject: RE: [date_time] timezone rules for different years > > [...snip...] > > 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? > Of course, an alternative might be for the library to read the actual zoneinfo files, rather than to extend the intermediate zonespec.csv format. I'm not sure which would be better. -- 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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Re: [Boost-users] cross compiling boost
by Hughes, James 09 Jan '07

09 Jan '07

If you are cross compiling boost, you don't need to cross compile bjam - just compile it for your host machine (I assume a PC with Windows or Linux). Then use that bjam to cross compile boost with the command line posted earlier. James > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of remi > Sent: 09 January 2007 11:23 > To: boost-users(a)lists.boost.org > Subject: [Boost-users] cross compiling boost > > > hi, > > I have a problem to create bjam with another toolset called > arm-linux-gcc. I use ./build.sh cc > > CC=arm-linux-gcc > > but it dosen't work ... > > > can anyome help me ?? > > Best regards > > __________________________________________________ > Do You Yahoo!? > En finir avec le spam? Yahoo! Mail vous offre la meilleure > protection possible contre les messages non sollicités > http://mail.yahoo.fr Yahoo! Mail > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > 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.

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Re: [Boost-users] RE : Re: cross compiling boost for ARM
by Hughes, James 09 Jan '07

09 Jan '07

Yes. > -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of remi > Sent: 05 January 2007 17:41 > To: boost-users(a)lists.boost.org > Subject: [Boost-users] RE : Re: cross compiling boost for ARM > > > Thank tou for the anwser ! > > So if i want to cross complie boost, i need boost_1_33_1.tar > and boost-jam package ? > > __________________________________________________ > Do You Yahoo!? > En finir avec le spam? Yahoo! Mail vous offre la meilleure > protection possible contre les messages non sollicités > http://mail.yahoo.fr Yahoo! Mail > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > 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.

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