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

RE: [Boost-users] Re: The Boost Community
by Brian Braatz 05 May '05

05 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Shishir Ramam > > > > [Brian Braatz Writes:] > > This is a good idea. My simple suggestion is to do this only use > > tinyurl. > > Why not use redirect from www.boost.org/wiki to the one above? > > If the description below is accurate, it seems very simple to do - > http://www.sbrady.com/hotsource/html/redirect.html > > -shishir [Brian Braatz Writes:] Good point, a boost.org redirection is much better

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RE: [Boost-users] Re: The Boost Community
by Brian Braatz 05 May '05

05 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of Vladimir Krasovsky > Sent: Thursday, May 05, 2005 1:13 AM > To: David Abrahams > Subject: Re: [Boost-users] Re: The Boost Community > > Hello David, > > Thursday, May 5, 2005, 12:17:14 AM, you wrote: > > > I actually love that. > > > www.gotboost.org > > By the way this domain is already used by someone. Can it be a > problem? > [Brian Braatz Writes:] No problem, we just organize an event where everyone on the list shows up at this guy's house at three in the morning politely asking for the domain name. ;)

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RE: [Boost-users] Re: The Boost Community
by Brian Braatz 05 May '05

05 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of David Abrahams > Sent: Wednesday, May 04, 2005 7:14 PM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Re: The Boost Community > > "Brian Braatz" <brianb(a)rmtg.com> writes: > > > > > My suggestion- is add to the Wiki site- something that lets a > > person browse the MAILING LIST. > [David Abrahams Writes:] > That's easily done; we can just link to the mailing list archives. We > have many choices there, actually. Just look at > http://www.boost.org/more/mailing_lists.htm and search for "archives." > > > If you can get the interface to the list working as good or better > > than the email version, then more people will start to use the web > > tool, by using the web tool, they will see the Wiki on the way > > in. In this way, the Wiki is put closer to their paradigm. > [David Abrahams Writes:] > Hmm, I'm not sure we can convince everyone to look at the Wiki before > going to the archive pages. > [Brian Braatz Writes:] Yes, it was a weak idea. But generally, the more we can connect the wiki to the mailing list the better. This basic idea hinges upon somehow providing a "really cool and compelling" way to dig around in the archives other than just searching for keywords. When I click on news://news.gmane.org/gmane.comp.lib.boost.user It opens up Outlook Express and gives me a pretty good view of the list. (much better than the Outlook folder I use now for the list) We should be able to find a WEB TOOL that gives the same view. The idea is if you make that web tool a first class citizen and let me hit the page for digging around in the subjects of the list, and additionally "advertise" the wiki in the header of said tool's page, then you have connected the paradigms. :)

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RE: [Boost-users] Re: The Boost Community
by Brian Braatz 05 May '05

05 May '05

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org [mailto:boost-users- > bounces(a)lists.boost.org] On Behalf Of David Abrahams > Sent: Wednesday, May 04, 2005 1:15 PM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Re: The Boost Community > > "JOAQUIN LOPEZ MU?Z" <joaquin(a)tid.es> writes: > > 2. Hosting. Dave Abrahams volunteered to host the site. > > Is he still holding his offer? > > I am. It might require getting new hosting resources soon, but at > least initially I'm sure boost-consulting.com can handle the load. [Brian Braatz Writes:] Suggestion: Setup a PayPal link to support the site. If you do, I will be one of the first to donate $$$$.

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Serialization, shared_ptr and namespaces
by Jan Eickmann 05 May '05

05 May '05

Hi, I'm trying to serialize a list of shared_ptr's to objects. Here's a summary of the code I have: namespace MyNamespace { class B { //implementation plus standard serialization function }; class A { private: list< shared_ptr<B> > myBs; public: template<class Archive> void serialize(Archive & ar, const unsigned int version) { ar & BOOST_SERIALIZATION_NVP(myBs); } }; } If I just try to serialize it, I get an unregistered_class exception. So I think I have to use BOOST_SHARED_POINTER_EXPORT(_GUID) to register the shared_ptr. When I include this inside the namespace (please note that the error messages are from my real code, so they have slightly other names: BOOST_SHARED_POINTER_EXPORT(B) I get this: f:\xenocide\xenocide\src\common\simulation\simulation.h(108) : error C2059: syntax error : 'string' f:\xenocide\xenocide\src\common\simulation\simulation.h(108) : error C2146: syntax error : missing ';' before identifier 'BOOST_CLASS_EXPORT_GUID' f:\xenocide\xenocide\src\common\simulation\simulation.h(108) : error C2059: syntax error : 'string' f:\xenocide\xenocide\src\common\simulation\simulation.h(109) : error C2143: syntax error : missing ';' before '}' When I put it outside the namespace I have to use a fully qualified name including the namespace for class B, so it becomes BOOST_SHARED_POINTER_EXPORT(MyNamespace::B) Then I get (not Xenocide is here what MyNamespace is in my example): f:\xenocide\xenocide\src\common\simulation\simulation.h(115) : error C2653: '__shared_ptr_Xenocide' : is not a class or namespace name f:\xenocide\xenocide\src\common\simulation\simulation.h(115) : error C2653: '__shared_ptr_Xenocide' : is not a class or namespace name I also tried various combinations with BOOST_SHARED_POINTER_EXPORT_GUID but it didn't help. Can someone explain to me how I have to declare shared_ptr's in order for them to work with boost::serialization? I was unable to find some more indepth documentation. Thanks, Jan Eickmann

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Re: [Boost-users] Compatibility between shared_ptr and Rational RoseRT
by Ross Manges 05 May '05

05 May '05

> When running the executable under Rational Purify, it reports many FIM > errors (Freeing Invalid Memory), and all of these are again due to the > deletion of objects that were owned by a shared_ptr. Is your program (the code that uses shared_ptrs) running in multiple threads? I am seeing problems with my multithreaded code where the use_count in the shared_ptrs is not accurate and causing all sorts of problems. I'm even seeing core dump backtraces showing problems in the scoped_lock where the shared_ptr use_count is getting updated. It appears that there are a lot of restrictions on how shared_ptrs can be used in a multithreaded program, and I may be breaking some of those restrictions as it is easy to do so. In any case, let me know if you find a solution to your FIM errors. I have a feeling I'm seeing symptoms of the same problem. Thanks.

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Boost build help
by Eyal Susser 05 May '05

05 May '05

Hi, I just downloaded the IOStreams library, soon to be included in Boost. I needt to install it, so that all the includes will reside wherever they should. I have bjam, but I must be doing something wrong. I'm at the tired, frustrated stage where the documentation is too cryptic. Could someone please explain how I use bjam? The docs say bjam -sTOOLS=gcc my_target. What is "my_target"? Tried teh path to the Jamfile, got an error saying no suitable files can be found...please help, I'm really having a bad day here :( Eyal.

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Re: The Boost Community
by Stephen W. Carson 05 May '05

05 May '05

If this discussion has got you thinking of something you'd like to see on a boost community site, why not slap it up on the existing Boost Wiki site? Put it up even if it is just a quick outline of what you would like to see. That way even if there is eventually a GotBoost site or whatever, the material is out there and can be moved to the new site. Do it now while it is on your mind: http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?BOOST_WIKI Another thought in regards to marketing Boost Wiki (and the future site). Put the URL in your SIG when posting to boost/C++ lists and newsgroups, (see mine below, Boost Wiki desparately needs a shorter, prettier URL). Simple, cheap marketing that will quickly raise the awareness of the site! -- Stephen W. Carson, Software Engineer DirXion Software in St. Louis, MO (636) 717-2367 http://www.crystalclearsoftware.com/cgi-bin/boost_wiki/wiki.pl?BOOST_WIKI

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boost freebsd port compilation fails
by Maurizio Molina 05 May '05

05 May '05

Hi, I'm trying to compile the boost freeBSD port on my freeBSD machine: root@pippo/usr/ports/devel/boost > uname -a FreeBSD pippo 4.10-RELEASE-p2 FreeBSD 4.10-RELEASE-p2 #5: Thu Sep 16 12:25:56 BST 2004 root@pippo:/usr/obj/usr/src/sys/TESTBED i386 but I get the following compilation error: cd /usr/ports/devel/boost/work/boost_1_32_0 && /usr/bin/env GCC="cc -O2 -pipe " GXX="c++ -O 2 -pipe " STLPORT_ROOT=/ SHELL=/bin/sh PORTOBJFORMAT=elf PREFIX=/usr/local LOCALBASE=/usr/ local X11BASE=/usr/X11R6 MOTIFLIB="-L/usr/X11R6/lib -lXm -lXp" LIBDIR="/usr/lib" CFLAGS="-O2 -pipe " CXXFLAGS=" -O2 -pipe " MANPREFIX="/usr/local" BSD_INSTALL_PROGRAM="install -c -s -o r oot -g wheel -m 555" BSD_INSTALL_SCRIPT="install -c -o root -g wheel -m 555" BSD_INSTALL_DA TA="install -c -o root -g wheel -m 444" BSD_INSTALL_MAN="install -c -o root -g wheel -m 444" /usr/ports/devel/boost/work/boost_1_32_0/tools/build/jam_src/bin.freebsd/bjam --prefix=/usr /local "-sTOOLS=gcc-stlport" "-sBUILD=<stlport-iostream>on release <threading>single <optimiz ation>off" "-sSTLPORT_INCLUDE_DIRECTORY=/usr/local/include/stlport" "-sSTLPORT_LIB_DIRECTORY= /usr/local/lib" Segmentation fault (core dumped) *** Error code 139 Stop in /usr/ports/devel/boost. This is the gcc version I'm using: root@pippo/usr/ports/devel/boost > gcc -v Using builtin specs. gcc version 2.95.4 20020320 [FreeBSD] Any idea of what's going wrong? Thanks, Maurizio

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Exception when reading from an archive
by Eyal Susser 05 May '05

05 May '05

Hi, I'm using the serialization library, but have encountered problems. I have an archiver that I use with a stringstream to serialize objects. I write some ints to the archive using "ar << my_int", and finally I archive a derived class wi ar << derived. So far, so good. In a different process, I create an input archiver, read the integers, and then pass the archiver to a different method, where I create an instance of the class I serialized and use "ar >> instance". This throws an exception. The code for the object created is one *.so, and teh code that does the creating does it with a templated class factory in a different *.so. Is that why I'm gettin the exceptions? Is there a solution? The exception is boost::archive::archive_exception what(): stream error. Thanks.

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