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Re: [Boost-users] Re: ublas + msvc 7.1
by cyril.godart＠bnpparibas.com 01 Dec '03

01 Dec '03

I have noticed something similar with msvc 7.1. Could you try please to locate the first occurence of the error and prefix any template deduced type with "typename". In the example you give: typename boost::numeric::SOME_MATRIX_TYPE<ARGS>::const_iterator2 and check that this precise compile error disappears ? (I have realised the code is boost::ublas'). This does not intend to solve your problem but to point to what vc7.1 is expecting. I am not sure whether that should be strict ISO C++. Regards, Cyril Godart. Internet fuxiaowei9999@hotmail.com@lists.boost.org - 25/11/2003 12:21 Please respond to boost-users(a)lists.boost.org Sent by: boost-users-bounces(a)lists.boost.org To: boost-users cc: Subject: [Boost-users] Re: ublas + msvc 7.1 Hi Whittley: I think this may be a bug in VC7.1. I try it successly under VC6.0 and find that the ublas is develop under VC6.0 with Dinkumware STL in its document. Yours f_x_w ----- Original Message ----- From: "Witz" <witz(a)nildram.co.uk> Newsgroups: gmane.comp.lib.boost.user Sent: Monday, November 24, 2003 9:09 AM Subject: ublas + msvc 7.1 > hi, > > I seem to be having problems with ublas in combination with msvc 7.1. > Compiling the code below results in a whole slew of errors of the form: > > 'use of undefined type > 'boost::numeric::SOME_MATRIX_TYPE<ARGS>::const_iterator2' > > Am i doing something dumb or is something broken? > > #include <boost/numeric/ublas/triangular.hpp> > > int main() > { > using namespace boost::numeric::ublas; > triangular_matrix<int,lower> ldm(4,4); > } > > I.M.Whittley _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users This message and any attachments (the "message") is intended solely for the addressees and is confidential. If you receive this message in error, please delete it and immediately notify the sender. Any use not in accord with its purpose, any dissemination or disclosure, either whole or partial, is prohibited except formal approval. The internet can not guarantee the integrity of this message. BNP PARIBAS (and its subsidiaries) shall (will) not therefore be liable for the message if modified. --------------------------------------------- Ce message et toutes les pieces jointes (ci-apres le "message") sont etablis a l'intention exclusive de ses destinataires et sont confidentiels. Si vous recevez ce message par erreur, merci de le detruire et d'en avertir immediatement l'expediteur. Toute utilisation de ce message non conforme a sa destination, toute diffusion ou toute publication, totale ou partielle, est interdite, sauf autorisation expresse. L'internet ne permettant pas d'assurer l'integrite de ce message, BNP PARIBAS (et ses filiales) decline(nt) toute responsabilite au titre de ce message, dans l'hypothese ou il aurait ete modifie.

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Help! Error in quote.hpp...
by Dan W. 01 Dec '03

01 Dec '03

Hi, first-time poster. Got an automated reply to the effect that my first post would be moderated; but later I got another automated email about the moderator being on vacation; and I'm in a hurry, so I hope it's okay for me to re-post here. I'm using latest betas for Digital Mars, STLport and BOOST, and I'm trying to compile a state-machine using boost's fsm::state_machine. My include line is as follows: G:\boost-1.30.2;G:\boost-1.30.2\boost\mpl;G:\boost-1.30.2\libs\mpl\example\fsm;G:\dm\STLport-5.0-1031\stlport;G:\dm\include Here's the top of my file: ............................................................................... #include <iostream> #include "boost/mpl/list.hpp" #include "state_machine.hpp" namespace mpl = boost::mpl; class rec_frm_sm : fsm::state_machine<rec_frm_sm> { public: ............................................................................... What I get on the output window is: sc rec_frm.cpp -Ae -Aa -r -mn -C -WA -S -3 -a8 -c -gf -IG:\boost-1.30.2 -IG:\boost-1.30.2\boost\mpl -IG:\boost-1.30.2\libs\mpl\example\fsm -IG:\dm\STLport-5.0-1031\stlport -IG:\dm\include -orec_frm.obj Error: G:\boost-1.30.2\boost/mpl/aux_/preprocessed/plain /quote.hpp(7): no type for argument 'T' Error: G:\boost-1.30.2\boost/mpl/aux_/has_type.hpp(23): no type for argument 'T' ..................................... Build failed I'm not sure how to track the include path for quote.hpp and has_type.hpp. I notice there's a link at www.boost.org for tracking header file inclusion, but the link appears to be broken. Any help would be appreciated. Yours. dan

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Re: [Boost-users] Help with function and/or bind libraries
by John.Wismar＠alldata.com 30 Nov '03

30 Nov '03

On Sun, 30 Nov 2003 Douglas Paul Gregor <gregod(a)cs.rpi.edu> wrote: > You can replace the body of get_total with: > > return std::accumulate(myVec.begin(), myVec.end(), 0, > boost::bind(std::plus<int>(), //bind 1 > _1, > boost::bind(&B::stretch_it, //bind 2 > this, > boost::bind(&A::size, //bind 3 > _2)))); > > You can decide whether that's better than the hand-coded loop or not :) >From a maintainability standpoint, I don't think I'll make that switch. ; -) Thanks for the reply, though! (Now I just have to try to figure out what it's doing!) --------------------- John Wismar -- RPI '90 john.wismar(a)alldata.com

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Help with function and/or bind libraries
by John.Wismar＠alldata.com 30 Nov '03

30 Nov '03

Here's the situation I'm trying to remedy, boiled down: class A { public: int size() const; }; class B { public: int stretch_it(int size) const; int get_total() const; private: std::vector<A> myVec; }; int B::get_total() const { int retVal = 0; for (std::vector<A>::const_iterator it = myVec.begin(); it != myVec.end (); ++it) { retVal += stretch_it(it->size()); } return retVal; } I'd love to use std::accumulate() or equivalent instead of a hand-coded loop, but I don't know if it's possible to specify a combination of operations like I have here.... Or if the result would be readable! Any suggestions would be much appreciated! --------------------- John Wismar john.wismar(a)alldata.com

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boost::function - why does this work??
by Matt S Trentini 29 Nov '03

29 Nov '03

Heya Everyone, I am trying to create a generic way to extract a list of objects from another list of objects. Let me explain! Say I have a vector (or any container with fwd iterators and value_type) that contains objects that have a function which returns a long (could actually be any type). I want to iterate over that vector and extract each of the longs into a list (or any container that supports push_back and defines value_type). Something like the following: class HandleClass { public: long handle() const { return val_++; } private: static long val_; }; // ... std::vector<HandleClass> listOfHcs; // ... fill listOfHcs here std::list<long> needToFill; OK so far. I then wrote this extraction function (yes, there are many ways I could have done this - with a functor and using foreach is another possibility worth exploring, but not now :) ). template < class ReturnContainer, class FwdIterator > void Extract(const FwdIterator & itBegin, const FwdIterator & itEnd, ReturnContainer & container, boost::function1<ReturnContainer::value_type, FwdIterator::value_type> f) { for (FwdIterator it = itBegin ;it != itEnd; ++it) { container.push_back(f(*it)); } }; And I was able to do this: Extract(listOfHcs.begin(), listOfHcs.end(), needToFill, &HandleClass::handle); And it worked like a charm. needToFill gets filled and I was happy. :) However we also had containers of _pointers_to_ HandleClasses. So in some cases our vector looked like: std::vector<HandleClass *> listOfHcs; Yet the same code worked! I couldn't, and can't, for the life of me understand what was going on (I expected that I would have to wrap the (*it) in a boost::remove_pointer which worried me because my compiler - MSVC7.0 - doesn't support partial template specialization). Don't get me wrong, I'm happy that it work but can anyone explain what fandangelory is going on inside boost::function (or perhaps it's some C++ magic?) to allow this? Cheers, Matt

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Compilation troubles on BSD..
by Joshua Moore-Oliva 28 Nov '03

28 Nov '03

I'm having trouble compiling code on BSD with boost, specifically boost_filesystem. I'm using gcc 3.2.3 On linux, there is no problem, buit on BSD.. this is what happens. Notice that there is no trouble FINDING -lboost_filesystem to link with, but that I'm getting undefined references to anything boost-related. This compiles without any errors on both BSD and linux, but the linking on BSD is the problem. Has anyone had any experiences getting boost to work on BSD before? Thanks, Josh. <snip> signalConfigReload.o \ signalShutdown.o -o Batcher -L. -lChatsUtils -lConfig -lFfm -lFfmStream -lShared -lboost_filesystem -L/usr/local/pqxx/lib -lpqxx markFinished.o: In function `Batcher::markFinished()': /home/josh/src/mastermailings/code/daemons/Batcher/Batcher/markFinished.cpp:9: undefined reference to `boost::filesystem::path::path[in-charge](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /home/josh/src/mastermailings/code/daemons/Batcher/Batcher/markFinished.cpp:9: undefined reference to `boost::filesystem::path::path[in-charge](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /home/josh/src/mastermailings/code/daemons/Batcher/Batcher/markFinished.cpp:9: undefined reference to `boost::filesystem::rename(boost::filesystem::path const&, boost::filesystem::path const&)' restore.o: In function `Batcher::restore(Ffm&, std::basic_ifstream<char, std::char_traits<char> >&)': /home/josh/src/mastermailings/code/daemons/Batcher/Batcher/restore.cpp:8: undefined reference to `boost::filesystem::path::path[in-charge](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' /home/josh/src/mastermailings/code/daemons/Batcher/Batcher/restore.cpp:8: undefined reference to `boost::filesystem::exists(boost::filesystem::path const&)' collect2: ld returned 1 exit status

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graph library: internal property problem
by Vasco Lohrenscheit 28 Nov '03

28 Nov '03

Hello, I have some problems with graph properties. For a project I created a layer above the boost graph library. So i have: template <typename N, typename E, typename GT> GraphNode : public N {} template <typename N, typename E, typename GT> GraphEdge : public E {} template <typename N, typename E> Graph {} with BGL properties like: typedef GraphNode<N,E,GraphTraits> tNode; typedef property <typename tNode::vertex_property, tNode*> NodeProperty; As internal graph properties i use pointers to GraphNode and GraphEdge with property tags defined in N and E, e.g. class LogicState { public: enum vertex_state_t {vertex_state=123;} static const vertex_state_t PropertyTag; } const LogicState::vertex_state_t LogicState::PropertyTag=vertex_state; and template specialization for property_kind: template <> struct property_kind <GraphEdge<LogicState, LogicConstraint, GraphTraits> > { typedef vertex_property_tg type; }; with using put(tNode::PropertyTag, graph, somestate); i get the following compile error: error C2679: binary '=' : no operator found which takes a right-hand operand of type 'GraphEdge<N,E,G> ' (or there is no acceptable conversion) with [ N=LogicState, E=LogicConstraint, G=Graph<LogicState,LogicConstraint>::tGraphTraits ] in line 316 in property_map.hpp: "static_cast<const PropertyMap&>(pa)[k] = v;" I'm using the current cvs version of boost and vc++7.1. Any ideas what can cause this problem ? Why there exist no "=" operator ? Where should it be defined/generated in normal cases ? Without my layer, with pure BGL and BOOST_INSTALL_PROPERTY I had it already working. Shouldn't it also be of type GraphEdge<N,E,G>* ? I've checked my code and everywhere I used pointers (in the property definition and with the put). Then another questions: The online docs for the BGL weren't very helpfull for me. Is the BGL book better, or is it only an enhanced version of the online docs ? best regards, Vasco Lohrenscheit

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Re: [Boost-install] Installing BOOST1_30_2 under HP UX 11.11 - URGENT
by David Abrahams 27 Nov '03

27 Nov '03

"Lalit Seth" <laalit_seth(a)hotmail.com> writes: > hi all, > > I m trying to install BOOST1_30_2 under HPUX11.11 > i did bjam to make > I m hving gcc3.2 on HPUX11.11 > > Its giving me failed 22 targets, > skipped 15 targets > done 384 targets. > > Is this right or do i have to change / add parameters to bjam. > > ITS QUITE URGENT. > > Rgds > Lalit Seth Lalit, First please take your Boost installation problems to the Boost.Users list or Boost.Build list (http://www.boost.org/more/mailing_lists.htm#jamboost) This list is out of commission. Second of all, though I am not sure why we don't have the 1.30.2 regression logs posted so I can check, it's not entirely surprising to see 22 targets failing with GCC-3.2. IIRC It does have bugs which prevent a few libraries from compiling. -- Dave Abrahams Boost Consulting www.boost-consulting.com

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C++Builder and Boost Graph Library
by Guilherme Mello de Moura 26 Nov '03

26 Nov '03

Hi guys, My name is Guilherme and I'm trying to use Boost Graph Library with Borland C++Builder.. I'm getting several compilation errors.. I downloaded the latest BGL version (1.30.2) and tried to compile the first graph example I saw.. Here's what I got: Using Boost Graph Library (BGL) version 1.30.2 with C++Builder 5.0 (6.0).. [C++ Error] tuple_basic.hpp(158): E2434 Template declaration missing template parameters ('template<...>') [C++ Error] tuple_basic.hpp(158): E2238 Multiple declaration for 'element<N,T>' [C++ Error] tuple_basic.hpp(143): E2344 Earlier declaration of 'element<N,T>' I also tried to compile the example tests that come with BGL .. And I got some problems with some of them .. Has anybody had the same problem ?!?! Am I doing something wrong ?!?! Regards, Guilherme Mello de Moura

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unit_test_framework - redirect output
by Steven Ketcham 25 Nov '03

25 Nov '03

Perhaps I am making this difficult or even missing the point but... Can I create tests with the unit_test_framework and redirect the output to a GUI? As it stands this is not possible because of int main(...) being defined. Using Windows 2000. Thanks! -- Using M2, Opera's revolutionary e-mail client: http://www.opera.com/m2/

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