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Re: [Boost-users] Using lambda to count elements in list of lists
by Daniel Lidström 01 Feb '06

01 Feb '06

Sebastian Redl scribbled: > Yes, but you need binding syntax: > > typedef list< list< int > > lli; > for_each(ll.begin(), ll.end(), var(count) += bind(&lli::size, _1)); Thanks to both Sebastian and Stuart! Hälsningar, Daniel

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Compiling boost with vacpp 8.0 as 64bit on AIX5.3ml3 of power5
by Kamil Marcinkowski 01 Feb '06

01 Feb '06

Hello, I need to compile boost as a 64 bit program using vacpp 8.0 compiler, on AIX 5.3ml3, power5, p5-550 and p5-595. I can compile boost with vacpp in 32bit mode fine, but all my attempts at compiling it 64 bit have not resulted with any success so far. The vacpp toolset does not offer any options and does not allow for any options or configuration variables. I do not understand the syntax of the vacpp-tools.jam file or (bjam in general) and cannot edit the file with any success. I just need the following flags passed to the compiler: <cxxflags> -q64 <linkflags> -q64 <arflags> -q64 Thanks, Kamil Kamil Marcinkowski Westgrid System Administrator kamil(a)ualberta.ca University of Alberta site Tel.780 492-0354 Research Computing Support Fax.780 492-1729 Academic ICT (formerly CNS) Edmonton, Alberta, CANADA University of Alberta "This communication is intended for the use of the recipient to which it is addressed, and may contain confidential, personal, and/or privileged information. Please contact us immediately if you are not the intended recipient of this communication. If you are not the intended recipient of this communication, do not copy, distribute, or take action on it. Any communication received in error, or subsequent reply, should be deleted or destroyed."

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unresolved program_options::arg
by Matthieu Paindavoine 01 Feb '06

01 Feb '06

Hello, I am compiling a program which uses the program_options library, and I am getting an unresolved symbol (boost::program_options::arg class std::basic_string<char, struct std::traits<char>, class std::allocator<char> > ). This is using the vc-7_1 toolset (boost 1.33.1, bjam --v2). I don't have such problem on Linux g++ 3.4.4 I see it in the value_semantic.cpp. If I play with setting <boost/config/user.hpp : BOOST_ALL_DYN_LINK> I can get it to compile, but it sends a warning 'inconsistent linkage', and later crashes on dbgheap.hpp I have compiled program_options with --v2 -stoolset=vc-7_1 -slink=shared -sthreading=multi -svariant=debug, and the same with my program. I've also added -sruntime-link=dynamic, same problem. Are there other options that need to be set before compiling program_options? Where is arg going to be defined if its external? I know it's something I'm doing wrong, can someone please help. Thanks Matthieu

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Using lambda to count elements in list of lists
by Daniel Lidström 01 Feb '06

01 Feb '06

Hello! I'm trying to use Boost.Lambda to count the total number of elements in a list of lists. This example shows what I'm trying to do: #include <boost/lambda/lambda.hpp> #include <algorithm> #include <list> using namespace std; using namespace boost::lambda; int main() { int count = 0; list<list<int> > ll; for_each(ll.begin(), ll.end(), var(count)+=(_1).size()); } This will not compile: (13): error C2039: 'size': is not a member of 'boost::lambda::lambda_functor<T>' Is this possible to do? Thanks in advance! Hälsningar, Daniel

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Boost Threads documentation
by James Hughes 01 Feb '06

01 Feb '06

Hello all, I am reading thought he thread docs on the Boost site, which are all dated around 2004/2005. Is there any more recent documentation, as this stuff refers to features not yet present, which I think are there now. James

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Re: [Boost-users] trying to install Boost 1.33.1 on Solaris 5.9 + SunStudio 11
by Xavier.Abulker＠fimat.com 01 Feb '06

01 Feb '06

Thank you everybody for you help, The SUN patch solved my problem. Regards Xavier.Abulker(a)fimat.com wrote: > Hello, > I'm trying to install Boost 1.33.1 on a Sun Solaris 5.9 Sunpro 11 and > after the command: > bjam "-sTOOLS=sunpro" install > I receive the error message: > > >>> Assertion: (../lnk/init.cc, line 1032) >>> > while processing /ftx/opt/SUNWspro/prod/include/CC/Cstd/rw/messages.cc > at line 0. > >> Assertion: (../lnk/init.cc, line 1032) > while processing /ftx/opt/SUNWspro/prod/include/CC/Cstd/rw/messages.cc > at line 0. > > Do you know how I can solve this problem? > It looks like Sun has released a patch to solve the error "Assertion: > (../lnk/init.cc, line 1032)" but I can't find it for solaris 5.9 + Studio > 11 > You need the latest set of patches for both the compiler and the back end - you can download those from SUN. I've been experimenting with those with a view to run Boost regression tests on Solaris (10 in my case) and with the latest patchset installed it will still fail to compile about 60 to 80 targets out of the close to 1300 for the 'stage' target. In my experience this is the best result for any Sun compiler so far. As mentioned in the other email it is worth compiling it against stlport and not the older RogueWave library. Regards, Timo _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost ************************************************************************* Ce message et toutes les pieces jointes (ci-apres le "message") sont confidentiels et etablis a l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisee est interdite. Tout message electronique est susceptible d'alteration. La FIMAT et ses filiales declinent toute responsabilite au titre de ce message s'il a ete altere, deforme ou falsifie. ******** This message and any attachments (the "message") are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. E-mails are susceptible to alteration. Neither FIMAT nor any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified.

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trying to install Boost 1.33.1 on Solaris 5.9 + SunStudio 11
by Xavier.Abulker＠fimat.com 01 Feb '06

01 Feb '06

Hello, I'm trying to install Boost 1.33.1 on a Sun Solaris 5.9 Sunpro 11 and after the command: bjam "-sTOOLS=sunpro" install I receive the error message: >> Assertion: (../lnk/init.cc, line 1032) while processing /ftx/opt/SUNWspro/prod/include/CC/Cstd/rw/messages.cc at line 0. >> Assertion: (../lnk/init.cc, line 1032) while processing /ftx/opt/SUNWspro/prod/include/CC/Cstd/rw/messages.cc at line 0. Do you know how I can solve this problem? It looks like Sun has released a patch to solve the error "Assertion: (../lnk/init.cc, line 1032)" but I can't find it for solaris 5.9 + Studio 11 Regards Xavier ************************************************************************* Ce message et toutes les pieces jointes (ci-apres le "message") sont confidentiels et etablis a l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisee est interdite. Tout message electronique est susceptible d'alteration. La FIMAT et ses filiales declinent toute responsabilite au titre de ce message s'il a ete altere, deforme ou falsifie. ******** This message and any attachments (the "message") are confidential and intended solely for the addressees. Any unauthorised use or dissemination is prohibited. E-mails are susceptible to alteration. Neither FIMAT nor any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified.

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Re: [Boost-users] Getting started with Boost: what did you need to know?
by Merrill Cornish 01 Feb '06

01 Feb '06

David, Having an introductory video to _Boost_ is problematic since there's no one thing called "Boost". Instead, it's a collection of often disparate libraries. Each of the libraries could reasonably be featured in its only "getting started" video. However, if the point is to _sell_ the whole Boost idea, then one alternative would be to bypass the details of syntax and function calls of the various libraries in favor of a "Why do you need Boost" talk/pitch/video. Talk about what kind of everyday problems it solves for you rather than trying to explain the nitty gritty (and 200 levels of nested template declarations) of each library. The pitch would verbally sketch (i.e. probably no code) a real world programming problem, then point out what the Boost library has to help out. A series of problem sketches would allow the pitch to cover a lot of otherwise disjoint Boost functionality and still make sense. Merrill

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[BGL] adjacency_list: OutEdgeList vs EdgeList
by Johan Oudinet 31 Jan '06

31 Jan '06

Hi, I can't understand the difference between the OutEdgeList and EdgeList adjacency_list parameters. I think the documentation is unclear about EdgeList (especialy http://www.boost.org/libs/graph/doc/using_adjacency_list.html which has a section about "Choosing the Edgelist and VertexList" but only OutEdgeList and VertexList are present in this section) I need fast access to edge_properties from edge_descriptor. But I couldn't find if OutEdgeList or EdgeList container is used for the operator[] ? I read that EdgeList doesn't exist in previous version of the BGL and OutEdgeList was called EdgeList. So I suspect their are still mistakes in the adjacency_list documentation. Regards, -- Johan Oudinet

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[filesystem] mistakable documentation
by marcoh77＠freenet.de 31 Jan '06

31 Jan '06

Hello! Is it possible to expand the filesystem documentation? ---8<------------------------ Native paths should be created with the 'native' argument, like this: boost::filesystem::path p("C:/test.txt", native); ---8<------------------------ For a novice it's impossible to create a path objekt with a native syntax because it's missing in the beginner tutorial. I have tried to create a path object and I got only exceptions. After a long journey in google and the boost mailinglists I have found a source example with the native argument. The documentation of boost::filesystem doesn't explain this part in the beginners guide as expected. Of course it is explained in the detailed documentation, but this is to far away. ;-) I hope my suggestion will be accepted. Thanx! :-) Best regards Amin

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