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[FSM] Saving/Restoring the state_machine
by spooky＠go.ro 25 Oct '04

25 Oct '04

Is it possible to save the current state of the state machine to a stream or by means of boost::serialize? Details: I am building a state machine using boost::fsm that is trying to follow the activity of items in a processing pipeline. I am trying to implement a procedure that allows the software to be turned off and on again without loosing the information about the current state. Naturally, I want to have a timer and, at some interval I checkpoint the state machine and save the binary representation to a file. The contents of the file are used during application startup to restore the state machine. Can I achieve this functionality with boost::fsm? Best regards, Emil Mieilica

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tcp/ip software
by Greg Silverman 25 Oct '04

25 Oct '04

Since Boost does not have a library for TCP/IP, I was wondering what OO interface to sockets is most popular with Boost users? Greg Silverman Northrop Grumman Sunnyvale, CA

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Boost under QNX 6.2.1
by Ghorashi, Ali 25 Oct '04

25 Oct '04

Dave, I'm also trying to compile boost_1_31_0 under qnx. Could you post the QNX libraries you mentioned? Ali Ghorashi (719) 277-5506 Hardware Engineering Lockheed Martin Mission Systems 9970 Federal Dr M/S 01P, Colorado Springs CO, 80920

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RE: [Boost-users] About properties
by Townsend, Matthew 25 Oct '04

25 Oct '04

>... > >I guess the functionality he wants is like the property keyword in VC++. >Unfortunately this is a Microsoft only extension. This is acutally stolen by Microsoft from Borland Delphi's Object Pascal. I really liked the feature and wished C++ had a solution. I haven't spent any time thinking about adding it, or how to. >Any ideas? Suggestions? > >Thanks > >-delfin -matt _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] Re: Bjam and cygwin
by Foster, Gareth 25 Oct '04

25 Oct '04

Hmm, could well be, I just downloaded a binary of bjam rather than building it, so I bet the default download is a windows build. I did get the install to work like this, however, my project doesn't find the boost includes, even though I installed to /usr/local, shouldn't they be picked up there? What autotools magic do I need if that isn't the case? Thanks Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of David Abrahams Sent: 24 October 2004 07:00 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: Bjam and cygwin "Foster, Gareth" <gareth.foster(a)siemens.com> writes: > Just for other peoples information (these mails show up in an searchable > online archive somewhere afterall afaik), I fixed this problem by setting > the path 'in a windows' way, rather than a unix way, even though I was > building from the cygwin shell. That means ... > > bjam "-sTOOLS=GCC" "--target=/usr/local" install > > Becomes ... > > bjam "-sTOOLS=GCC" "--target=c:\cygwin\usr\local" install > > That's from memory, so excuse any slight inacuracies in the syntax there. It > does get rid of the <directory-guist> weirdness. > > Hope this helps somebody somewhere. > > Regards That's surely because you're using a bjam that was built for windows, not for Cygwin. If you rebuild bjam under Cygwin I think you'll see that Cygwin paths work. -- Dave Abrahams Boost Consulting http://www.boost-consulting.com _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] Bjam and cygwin
by Foster, Gareth 24 Oct '04

24 Oct '04

Just for other peoples information (these mails show up in an searchable online archive somewhere afterall afaik), I fixed this problem by setting the path 'in a windows' way, rather than a unix way, even though I was building from the cygwin shell. That means ... bjam "-sTOOLS=GCC" "--target=/usr/local" install Becomes ... bjam "-sTOOLS=GCC" "--target=c:\cygwin\usr\local" install That's from memory, so excuse any slight inacuracies in the syntax there. It does get rid of the <directory-guist> weirdness. Hope this helps somebody somewhere. Regards Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Foster, Gareth Sent: 18 October 2004 11:37 To: 'boost-users(a)lists.boost.org' Subject: [Boost-users] Bjam and cygwin Hello all, I keep getting the following errors using bjam ... "<directory-grist>" I have set the install to use GCC and install to /usr. I also tried with /usr/local. I read that it might be a windows/unix line break thing, but I tried the zip file, bz2 and normal tarball, extracting with the windows gui tools and the cygwin cli tools. What am I doing wrong? Thanks for any help. Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Joel Sent: 15 October 2004 00:55 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Spirit Foster, Gareth wrote: > Hello all, > > I am trying to find some source code that uses spirit to parse C++ and > convert it to HTML, i found some on google, but i misplaced it and i > can't find it again. It looked like it could have been an example > provided with the library, but i can't see it listed in the documentation. > > On a side note, anyone know the best way to use boost with cygwin? From > source? Is there even another way? See the repository: http://spirit.sourceforge.net/repository/applications/show_contents.php Cheers, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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help with boost thread compile
by Sara Collins 23 Oct '04

23 Oct '04

This might be very easy for a lot of you but I've been banging my head on the wall. I just installed the boost library and tried to run a simple test file using boost.thread.mutex #include <boost/thread/mutex.hpp> int main() { boost::mutex m; } I got this compilation error message: undefined reference to `boost::mutex::mutex[in-charge]()' I guess I have to link in the libboost_thread.dll file somehow but I don't seem to find a solution how. Perharps I've been searching the wrong places. Please help the newbie. Thanks a lot in advance. _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com

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shared_ptr race condition
by Sharon Paisner 22 Oct '04

22 Oct '04

I'm having a problem wherein the block of code below hangs at line 16. A race condition is being created with the shared_ptrs. The Call class contains an std::map of DialogPtrs (where a DialogPtr is just a boost::shared_ptr< Dialog >) - is it legal to use a boost::shared_ptr to wrap a class that contains a dynamically allocated container like a map? note: the createDialog() method is write-locked, so that the map cannot be accessed by more than one thread at a time. 1 int main( int argc, char *argv[] ) 2 { 3 AAFramework aa; 4 CallPtr call( new Call( aa ) ); 5 6 UriPtr callee( new Uri( "sip:name@domain" ) ); 7 call->setInitialCallee( callee ); 8 9 assert( call->getInitialCallee() == callee ); 10 11 TagPtr tag( new Tag() ); 12 CallIdPtr callId( new CallId() ); 13 UriPtr contact( new Uri( "sip:contact@domain" ) ); 14 UriPtr uriComplete( new Uri( "sip:complete@domain" ) ); 15 16 DialogPtr newDialog = call->createDialog( DT_CALLEE, tag, callId, contact, uriComplete ); 17 assert( call->getDialog( DT_CALLEE ) == newDialog ); 18 19 return EXIT_SUCCESS; 20 } one of the strangest aspects of this problem is that it occurs on some machines, but not others, and I have yet to determine the difference between the systems on which it works and the systems on which it doesn't work. Boost's use of so much inline code makes it very difficult to debug the program. in case it helps any, I'm using boost-1.31 and gcc-3.4.2. thanks, Sharon

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[sandbox/socket]1.32/vc7.1: Who's in charge???
by Francis ANDRE 22 Oct '04

22 Oct '04

Hi I am trying to get the boost-sandbox/socket running but it seems that this socket library is out of sync, at least for vc7.1. Who is in charge of this library since Hugo DUNCAN has moved its code base out of the boost foundry?? Cheers Francis

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boost::serialization problems
by Andrzej Cieslar 22 Oct '04

22 Oct '04

Hello, I'm having some problems trying to use the boost::serialization library. Here's why: I have a class hierarchy (~80 classes). I was trying to add the serialization abilities to the entire hierarchy (intrusive template-based version). Because I need to serialize things through pointers to base classes, I do the register_type on each class. But the compilation fails on MSVC 7.1 with "internal structure overflow" and "out of keys" errors. So I googled a little bit and found out that this is a known issue with MSVC and that the workaround is to split the .cpp file into smaller parts. So I did. But now the linker fails due to excessive .lib file size (I had to put the register_type function for each class in separate .cpp file) Ok so I switched to the polymorphic archives. It compiles fine, but fails at runtime when saving a null pointer. Here's a short example: --- #include <fstream> #include <boost/archive/polymorphic_text_oarchive.hpp> struct A { void serialize( boost::archive::polymorphic_oarchive & ar, const unsigned int version) {} }; int main(int argc, char* argv[]) { std::ofstream ofs("serialized.txt"); boost::archive::polymorphic_text_oarchive oa(ofs); A* a = 0; oa << a; } --- The failure is because of trying to dynamic_cast from interface_oarchive& to basic_oarchive&, which I believe are not related: oserializer.hpp, l.422: if(NULL == t){ basic_oarchive & boa = boost::smart_cast_reference<basic_oarchive &>(ar); Are these known issues or am I missing something? I'd be grateful for your help All best, Andrzej Cieslar ---------------------------------------------------- Pistolety wiatrówki bez zezwolenia w Militaria.pl Teraz do 30% taniej! http://klik.wp.pl/?adr=http%3A%2F%2Fadv.reklama.wp.pl%2Fas%2Fsklep1.html&si…

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Newbie Question regarding \algorithm\string
by Ghorashi, Ali 22 Oct '04

22 Oct '04

Hello All, Just a quick question: Why isn't the \algorithm\string library not included in the standard boost download bundle? Thanks, A.G.

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Using template in property types
by Stephen torri 22 Oct '04

22 Oct '04

I have a need to store an instance of a template class in each vertex of a adjacency_list. I was wondering if my idea below will do: template <class House_Type, class Number_Type> class Home { public: uint32_t id; House_Type type; Number_Type digits; }; The following classes are specific instances of the Home class: class Ranch_Home : public Home <std::string, uint8_t> {} class Tudor_Home : public Home <std::string, float> {} I was thinking that the property to store this would have to be something allows for either Home type to be stored at a vertex. struct house_obj{}; typedef property < house_obj, boost::shared_ptr< Home< House_Type_Base, Digit_Type_Base> > > VertexProperty; In this case the House_Type_Base and Digit_Type_Base what I am not sure about here. I want to use a Factory to create the appropriate Home based on a string I read from the file as was seen above. For example, for each line of the file I plan on using a boost spirit parser to parse the file since I need all three elements before calling the factory. 1 "Ranch" 20 2 "Tudor" 20509.0 So how can I use the property when the template arguments are objects that have no common base class between them? Stephen -- Email: storri(a)torri.org

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Swap allocator problem in multi_array.hpp
by Ewan Campbell 20 Oct '04

20 Oct '04

When resizing a multi-dimensional array I receive the warning: d:\microsoft visual studio\vc98\include\xutility(100) : warning C4101: '_Tmp' : unreferenced local variable d:\boost\include\boost-1_31\boost\multi_array.hpp(246) : see reference to function template instantiation 'void __cdecl std::swap(class std::allocator<double> &,class std::allocator<double> &)' being compiled An unreference local variable is not exactly the end of the world, but it is churned out every time a file is compiled that include this function and I'd rather not disable this warning. I can find no mention of anyone else having this problem for such a widely used function (dynamically resizing arrays). The specific line that appears to be causing the problem is: swap(this->allocator_,new_array.allocator_); in "multi_array.hpp" I am resizing the array like so header file: typedef boost::multi_array<double, 2> array2d_type; typedef array2d_type::index index; Class CArrayConfiguration{ ... protected: ... array2d_type m_pReceiveArray; ... }; implementation file: m_pReceiveArray.resize(boost::extents[M][5]); // where M = 10 -> 1000 and it is this line that prompts the warning. I am using MSVC++ 6.0 on WinXP. If I initalising the array to shape and then resize it there is no problem, but I require it to be a class member variable. Thanks in advance, ec

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Constructing vertex_iterator from vertex_descriptor
by Martin Magnusson 20 Oct '04

20 Oct '04

I'm using BGL, and I noticed that add_vertex returns a vertex_descriptor to the new vertex. However, I would like to have a vertex_iterator pointing to the same element. Is there a way to construct a vertex_iterator when given a vertex_descriptor? / martin

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compiling bgl
by Emre Turkay 19 Oct '04

19 Oct '04

Hi all, I've compiled boost on windows with vc71. However, I don't see a generated binary file for the boost graph library, though it was generating in linux. Do I need to do some manual tricks? Thanks, Emre Turkay

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[BGL]DIJKSTRA - ospf-example
by Khaled Saleh 18 Oct '04

18 Oct '04

I'm trying to grasp the BGL using the user guide and reference manual book by J.Seik et al. Trying the ospf-example (\boost_1_31_0\libs\graph\example) using Borland C++ 5.6.4 for Win32 raise the follwing error: "dijkstra_shortest_paths.hpp": E2285 Could not find a match for 'dijkstra_shortest_paths<VertexListGraph,Param,Tag,Rest>(const adjacency_list<vecS,vecS,directedS,no_property,property<edge_weight_t,int,no _property>,no_property,listS>,unsigned int,unsigned int * const,iterator_property_map<int *,vec_adj_list_vertex_id_map<no_property,unsigned int>,int,int &>,adj_list_edge_property_map<directed_tag,int,const int &,unsigned int,const property<edge_weight_t,int,no_property>,edge_weight_t>,vec_adj_list_vertex_i d_map<no_property,unsigned int>,undefined,const closed_plus<int>,undefined,undefined,const default_dijkstra_visitor)' in function void dijkstra_dispatch2<adjacency_list<vecS,vecS,directedS,no_property,property<e dge_weight_t,int,no_property>,no_property,listS>,const iterator_property_map<int *,vec_adj_list_vertex_id_map<no_property,unsigned int>,int,int &>,adj_list_edge_property_map<directed_tag,int,const int &,unsigned int,const property<edge_weight_t,int,no_property>,edge_weight_t>,vec_adj_list_vertex_i d_map<no_property,unsigned int>,bgl_named_params<unsigned int *,vertex_predecessor_t,no_property> >(const adjacency_list<vecS,vecS,directedS,no_property,property<edge_weight_t,int,no _property>,no_property,listS> &,unsigned int,iterator_property_map<int *,vec_adj_list_vertex_id_map<no_property,unsigned int>,int,int &>,adj_list_edge_property_map<directed_tag,int,const int &,unsigned int,const property<edge_weight_t,int,no_property>,edge_weight_t>,vec_adj_list_vertex_i d_map<no_property,unsigned int>,const bgl_named_params<unsigned int *,vertex_predecessor_t,no_property> &) at line 247 The offending line is: choose_param(get_param(params, graph_visitor), make_dijkstra_visitor(null_visitor()))); Please advise in order to get myself going. Best Regards

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Vertex descriptor invalidation
by Greg Emerson 18 Oct '04

18 Oct '04

Re: Boost Graph Library I have a feeling I am having some problems due to add_edge and vertex invalidation. According to the table on http://www.boost.org/libs/graph/doc/adjacency_list.html decriptors are stable, but http://groups.yahoo.com/group/boost/message/5435 claims otherwise. Could you clear this up for me? Thanks much, Greg Emerson

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Vertex descriptor invalidation (again)
by Greg Emerson 18 Oct '04

18 Oct '04

Sorry, I forgot to mention that I have set VertexList=vecS (and wish to keep it that way). Thanks again, Greg Emerson

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Re: Extending the boost::thread class
by arno.schaefer＠sqs.de 18 Oct '04

18 Oct '04

"Ben Hutchings" <ben.hutchings(a)businesswebsoftware.com> schrieb im Newsbeitrag news:<416D5B83.4090404(a)businesswebsoftware.com>... > Why do you think you want suspend, resume and terminate? There are very > few safe uses for these operations, and programs that use them tend to > suffer from data corruption and/or deadlocks. I am in the situation, that I have a lot of existing C++ Code, which work in this way. All kind of threads are running in an endless loop and will be controlled from outside over the resume and terminate interfaces. I have to deliver a class what satisfy the given interface, because I will have no chance to rewrite all the other code, which run very well on our given plattforms (SUN, HP, AIX, Linux, Windows). So my point is, I want use the portable boost code as a base and manage the non portable parts by myself and looking now for the best way to do it without manipulating the boost source code. > It would be fairly easy to add support for priority settings to > Boost.Thread, but since priority values are only meaningful in the > context of a scheduling policy and policies vary between operating > systems it would be hard to provide a genuinely portable priority system. Can you link to some examples? regards Arno

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Bjam and cygwin
by Foster, Gareth 18 Oct '04

18 Oct '04

Hello all, I keep getting the following errors using bjam ... "<directory-grist>" I have set the install to use GCC and install to /usr. I also tried with /usr/local. I read that it might be a windows/unix line break thing, but I tried the zip file, bz2 and normal tarball, extracting with the windows gui tools and the cygwin cli tools. What am I doing wrong? Thanks for any help. Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Joel Sent: 15 October 2004 00:55 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Spirit Foster, Gareth wrote: > Hello all, > > I am trying to find some source code that uses spirit to parse C++ and > convert it to HTML, i found some on google, but i misplaced it and i > can't find it again. It looked like it could have been an example > provided with the library, but i can't see it listed in the documentation. > > On a side note, anyone know the best way to use boost with cygwin? From > source? Is there even another way? See the repository: http://spirit.sourceforge.net/repository/applications/show_contents.php Cheers, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] boost::bind, MSVC7.1 and volatile-qualification
by Schalk_Cronje＠McAfee.com 18 Oct '04

18 Oct '04

>I wouldn't go that way. After the great flame wars in >comp.programming.threads regarding the article, Andrei himself has >acknowledged that this might not be the proper way to do sychronization. >He's since proposed a better approach. >http://www.informit.com/articles/article.asp?p=25298 Oh right, I happened to attend his presentation he did this year at ACCU 2004.

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dijkstra_shortest_paths and vertex_index
by Steve Buchko 16 Oct '04

16 Oct '04

I understand that when using listS to define vertices for a graph, I must also assign values to vertex_index before attempting to make use of dijkstra_shortest_paths. My question is, do the values assigned to vertex_index need to be sequential (i.e. 0 to n where n is the number of vertices in the graph), or can I assign any "random" integer to each vertex_index, as long as the values assigned are unique for each node? Does dijkstra_shortest_paths simply use the vertex_index as a unique identifier for the vertex, or is it using those indices to build an internal data structure such as an array or vector ... in which case using relatively large (or non-sequential) integers for vertex_index might be prohibitive from a memory or performance viewpoint? Thanks, steve

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RE: [Boost-users] boost::bind, MSVC7.1 and volatile-qualification
by Schalk_Cronje＠McAfee.com 15 Oct '04

15 Oct '04

> I wonder why gcc is able to compile it. :-) Well considering that the following also yields different results on MSVC7.1 and gcc 3.2/3.3 I would wonder if there is a problem with one of the compilers #include <iostream> #include <boost/bind.hpp> struct X { void f() {std::cout << "None" << std::endl;} void f() const {std::cout << "const" << std::endl;} }; template <typename T> void run( void (T::*f_)(), T& t_) {(t_.*f_)();} template <typename T> void run( void (T::*f_)() const, T const& t_) {(t_.*f_)();} int main() { X x; run(&X::f,x); boost::bind(&X::f,_1)(x); } >Do you really have a volatile member function somewhere? I thought that they >were "officially" worthless. Well, that is a different matter. If one might want to follow Andrei's suggestion of using volatile to encapsulate synchronisation then they are still worthwhile. (CUJ February 2001).

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RE: [Boost-users] Spirit
by Foster, Gareth 15 Oct '04

15 Oct '04

Thanks Ron, Joel, What i was after was the link Joel actually posted, but thats for the tip anyway Ron. Much appreiated both. Now i just have to get boost working with cygwin :) Regards, Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Ronald Garcia Sent: 14 October 2004 17:21 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Spirit Are you referring to code that translates C++ into an xml-ish parse tree, or code that makes c++ code look pretty as html? I am aware of an html pretty-printing program for c++ sources written using boost.regex, if that's what you seek. Cheers, Ron On Oct 14, 2004, at 8:24 AM, Foster, Gareth wrote: Hello all, I am trying to find some source code that uses spirit to parse C++ and convert it to HTML, i found some on google, but i misplaced it and i can't find it again. It looked like it could have been an example provided with the library, but i can't see it listed in the documentation. On a side note, anyone know the best way to use boost with cygwin? From source? Is there even another way? Thanks for any help! Gaz _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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for_each on container of any
by Frank Birbacher 15 Oct '04

15 Oct '04

Hello! I like the idea of containers (e.g. std::vector) of boost::any. But I'd like to execute some operation on each item of the sequence. Unfortenuately I would need to know the set of types in the container and check every one of them if I was going to use the std::for_each with a void(*)(boost::any&). That's not good at all. I'd like to pass a function object like: struct MyOperation { template<typename T> void operator() (T&) const; }; How can I do so? Is there any algorithm for doing so provided by boost? Frank

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max_element matrix
by Vicente Palazón González 15 Oct '04

15 Oct '04

Hello, sorry, I'm a beginner with uBLAS, and I think these are simple questions, is there a simple way to obtain the maximum element of an uBLAS matrix? is there an special iterator for ubLAS matrices to use with std::max_element? Vicente Palazón.

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BOOST_STATIC_ASSERT with intel compiler at class scope
by Thomas S. Urban 15 Oct '04

15 Oct '04

The BOOST_STATIC_ASSERT documentation indicates I can use it at template class scope (private recommended) - the assert shouldn't get triggered unless the class is instantiated. This seems to work ok with gcc-3.* but not with the intel compiler (8.1). // begin example program #include "boost/static_assert.hpp" template<class T> struct foo { foo (int) { } private: BOOST_STATIC_ASSERT (false); }; template <> struct foo<int> { foo (int i) { } }; int main () { foo<int> f (7); } // end example program I get the following error: foo.cpp(8): error: incomplete type is not allowed BOOST_STATIC_ASSERT (false); ^ compilation aborted for foo.cpp (code 2) Whether I provide the specialization for int or not, or whether I ever use struct foo in main or not. Is this a know issue? Do I have a build problem? I'm using boost version 1.30.2. Thanks Scott

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Spirit
by Foster, Gareth 14 Oct '04

14 Oct '04

Hello all, I am trying to find some source code that uses spirit to parse C++ and convert it to HTML, i found some on google, but i misplaced it and i can't find it again. It looked like it could have been an example provided with the library, but i can't see it listed in the documentation. On a side note, anyone know the best way to use boost with cygwin? From source? Is there even another way? Thanks for any help! Gaz

3 2

boost::bind, MSVC7.1 and volatile-qualification
by Schalk_Cronje＠McAfee.com 14 Oct '04

14 Oct '04

Is there a known problem with boost::bind, volatile-qualified member functions and MSVC7.1? The following snippet of code happily compiles with various incantations of gcc, but fails with MSVC7.1. The same applies for 'const volatile'. #include <boost/function.hpp> #include <boost/bind.hpp> struct TEST { void gv0() volatile; void gvc0() volatile const; int gv2(int,int) volatile; int gvc2(int,int) volatile const; }; void instantiate() { TEST T; boost::function< void() > gv0 =boost::bind(&TEST::gv0,&T); // boost::function< int(int,int) > gv2 =boost::bind(&TEST::gv2,&T,_1,_2); // boost::function< void() > gcv0=boost::bind(&TEST::gvc0,&T); // boost::function< int(int,int) > gcv2=boost::bind(&TEST::gvc2,&T,_1,_2); } cl -c -TP -GS -GF -GR -vmv -vmg -EHsc -Zc:forScope -Zc:wchar_t -Op -Gm- -D_DEBUG -Od -Zi -Yd -MDd msvc71bind.cpp (Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13.10.3077 for 80x86) ******\boost\mem_fn.hpp(256) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\bind\bind_template.hpp(156) : see reference to class template instantiation 'boost::_mfi::dm<R,T>' being compiled with [ R=void (void) volatile, T=TEST ] msvc71bind.cpp(21) : see reference to class template instantiation 'boost::_bi::bind_t<R,F,L>' being compiled with [ R=void (__thiscall &)(void) volatile, F=boost::_mfi::dm<void (void) volatile,TEST>, L=boost::_bi::list_av_1<TEST *>::type ] ******\boost\mem_fn.hpp(264) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\mem_fn.hpp(274) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\mem_fn.hpp(288) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\mem_fn.hpp(293) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\mem_fn.hpp(307) : warning C4180: qualifier applied to function type has no meaning; ignored ******\boost\bind.hpp(1572) : warning C4180: qualifier applied to function type has no meaning; ignored msvc71bind.cpp(21) : see reference to function template instantiation 'boost::_bi::bind_t<R,F,L> boost::bind<void(void) volatile,TEST,TEST*>(void (__thiscall TEST::* ),A1)' being compiled with [ R=void (__thiscall &)(void) volatile, F=boost::_mfi::dm<void (void) volatile,TEST>, L=boost::_bi::list_av_1<TEST *>::type, A1=TEST * ] ******\boost\mem_fn.hpp(286) : error C4716: 'boost::_mfi::dm<void __thiscall TEST::(void)volatile ,TEST>::operator()' : must return a value

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Re: Extending the boost::thread class
by arno.schaefer＠sqs.de 14 Oct '04

14 Oct '04

> For what it's worth, William Kempf began an implementation of thread > priorities and an exception-based thread cancellation scheme on the > thread_dev branch before he stopped working on Boost.Threads. If it's > completed enough (I haven't examined it closely enough yet to tell), > I hope to move it into the a Boost release after the upcoming 1.32. > That won't help you right now, however. I feel sorry about that, but perhaps it is possible to get a look to the actual state? Arno

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Boost & VC2005 (Whidbey)
by S.I.M. van Keulen 14 Oct '04

14 Oct '04

Hi all, recently I started 'porting' some projects to 64 bit Windows (AMD) using Visual Studio 2005. I noticed that the Compiler had trouble with Boost. Searching the net didn't provide much helpfull information. I wondered if any of you had tried anything with Boost and VC2005/Whidbey compilers. Or if any of you could direct me to some information source on the net. Thank you! Serge van Keulen

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Re: "smart list" container?
by David Jones 13 Oct '04

13 Oct '04

"Caleb Epstein" <caleb.epstein(a)gmail.com> wrote in message news:<989aceac041012063240b6aa3(a)mail.gmail.com>... > On Mon, 11 Oct 2004 10:19:54 -0600, David M. Jones <djones(a)keymark.com> wrote: > > - The container itself would act more or less identically to std::list; > > - The iterators on the container would act like boost::weak_ptr in that they > > would know that they are invalid when the list element that they point to is > > removed. > > Can't you just do this with a std::list<boost::shared_ptr>? You can > convert the *iterators to weak_ptrs as needed. Or am I missing > something? There are a couple of reasons that std::list<boost::shared_ptr> is less than ideal. First, using the algorithms becomes cumbersome/annoying. Instead of being able to write std::list<boost::shared_ptr<int> > lst; // ... Populate the list int i; // ... Set the value of i std::list<boost::shared_ptr<int> >::iterator = std::find(lst.begin(), lst.end(), i); I instead need to create a function object to represent a boost::shared_ptr<int> having the desired value and then use find_if(). Second, I would lose the ability to store iterators and then check them later for validity. Suppose that I have a std::list<boost::shared_ptr<int> > named lst and I have two std::list<boost::shared_ptr<int> >::iterator objects it1 and it2 that happen to reference the same node in the list. If I call lst.erase(it1) then it2 also becomes invalid. If I call boost::weak_ptr<int>(*it2) I get an error because I cannot dereference the iterator because it is already invalid. This is how std::list objects are supposed to work but what I want to be able to do is now call something like it2.expired() to determine that the node being refered to by it2 is not invalid/expired/removed. One way to get around this is to store boost::weak_ptr objects derived from std::list<boost::shared_ptr>::iterator objects instead of storing it1 and it2 directly. But then I lose the advantage of having stored iterators: I cannot (after checking for expiration and being at the end of the list) call operator++() to move the iterator forward. Fundamentally, I don't want to be storing a "list of nodes of shared pointers of objects" but a "list of nodes of objects whose pointers to each other are shared pointers". And I want the iterators to be weak pointers to the nodes. Potentially a way to do this would be to write a custom allocator my_alloc that declares typedef boost::shared_ptr pointer; and then create a std::list<T, my_alloc<T> > This works because std::list uses the allocator rebinding mechanism to call my_alloc<node<T> > rather than my_alloc<T>. (In fact, my_alloc<T> is never used to allocate anything in std::list<T>!) However, there is a problem because the interface (concept a la Austern) of boost::shared_ptr is different than that of a regular pointer. So when the std::list code tries to call _Myhead = 0; I get a compiler error. (I am using MSVC 7.1: although this particular error may be STL implementation dependent, I do believe that the problem I am describing will occur with any STL implementation.) But I digress... The question of why the boost::shared_ptr interface/concept does not conform to that of a normal pointer is probably a topic for a separate posting.

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RE: [Boost-users] Extending the boost::thread class
by Foster, Gareth 13 Oct '04

13 Oct '04

Could you make it something like "enum { eLow, eNormal, eHight }; myThread.priority(eHigh);"? Maybe something non specific would be do-able, and it might still be useful to those who aren't after lots of control? Not that I am well clued up, just a thought. Cheers! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Ben Hutchings Sent: 13 October 2004 17:45 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Extending the boost::thread class arno.schaefer(a)sqs.de wrote: > Hi all, > I want to use the boost thread library as a base for my multiplatform > thread class. After I have studied the documentation I recognize that > there are not all things available at the moment what I need, so I try > to find out what is the best way to start my implementation. What I > need, is to implement the following additional methods: suspend, resume, > stop (or terminate), set_priority, get_priority, get_state and I want to > have the possibility to create threads in a suspend mode. <snip> Why do you think you want suspend, resume and terminate? There are very few safe uses for these operations, and programs that use them tend to suffer from data corruption and/or deadlocks. It would be fairly easy to add support for priority settings to Boost.Thread, but since priority values are only meaningful in the context of a scheduling policy and policies vary between operating systems it would be hard to provide a genuinely portable priority system. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Extending the boost::thread class
by arno.schaefer＠sqs.de 13 Oct '04

13 Oct '04

Hi all, I want to use the boost thread library as a base for my multiplatform thread class. After I have studied the documentation I recognize that there are not all things available at the moment what I need, so I try to find out what is the best way to start my implementation. What I need, is to implement the following additional methods: suspend, resume, stop (or terminate), set_priority, get_priority, get_state and I want to have the possibility to create threads in a suspend mode. I want to use the boost thread as is and extend the needed features in my own class, but it seems so that their is at the moment no legal way to get the internal thread resource from a created thread, so that I can implement the missing and perhaps not portable features by my own? So what is the prefered way to extend the thread class? Is their a reasonable way to do it or should I build my own class from scratch? many thanks for any input and guess, regards Arno

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about boost graph library -- subgraph
by qyang＠cs.ucr.edu 12 Oct '04

12 Oct '04

Hi, I am new here. I recently downloaded the boost library from www.boost.org. I need to use the "subgraph" function in the library. I tried to run the example file "subgraph.cpp", but the running result was different from what was given in the file. Below is my running result and sample output: //my result: G0: 0 --> 1 1 --> 2 3 2 --> 5 3 --> 4 --> 1 5 5 --> 3 0(0,1) 1(1,2) 2(1,3) 6(2,5) 3(4,1) 4(4,5) 5(5,3) G1: 0 --> 2 1 --> 2 2 --> 6(0,2) 4(1,2) G2: 0 --> 1 1 --> 0(0,1) //sample output G0: 0 --> 1 1 --> 2 3 2 --> 5 3 --> 4 --> 1 5 5 --> 3 0(0,1) 1(1,2) 2(1,3) 6(2,5) 3(4,1) 4(4,5) 5(5,3) G1: 2 --> 5 4 --> 5 5 --> 6(2,5) 4(4,5) G2: 0 --> 1 1 --> 0(0,1) //====================================================== Basically what happened was that the vertex indices of the subgraph G1 in my output are child's local indices, however, the vertex indices of the subgraph G1 in the sample output is parent's global indices. Can somebody explain this? Is it a bug in the boost code? Thanks very much, Qiaofeng

2 1

Thread library Win32 static linking for MSVC 2003 release?
by Emilio Schapira 12 Oct '04

12 Oct '04

Does anybody know when will be the next release of Boost that has the threads library fixed such that it is possible to link statically in win32 platforms compiling with MSVC++ 2003? I have read that it will be fixed for the next release. Also, how stable is the current version of the library in the CVS repository? I was browsing through it and it seems to have been fixed. Anybody has experiences with it? Thanks, Emilio.

2 2

"Compiler threading support not turned on" error
by Glen Simmons 12 Oct '04

12 Oct '04

I'm attempting to use Boost.threads on Mac OS X 10.3 and am getting the error "Compiler threading support is not turned on" when trying to compile. I'm using Xcode, which is Apple's IDE, so I'm not sure what to do when the error text helpfully suggests I set the correct command line option. As far as I know, there's nothing extra that you have to do to enable threading support in the compiler. I've written multi-threaded apps using pthreads and never had to deal with command line options. Any suggestions? Thanks, Glen Simmons

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"smart list" container?
by David M. Jones 12 Oct '04

12 Oct '04

Hello, I have run into a situation where the following std::list-like container would be useful. - The container itself would act more or less identically to std::list; - The iterators on the container would act like boost::weak_ptr in that they would know that they are invalid when the list element that they point to is removed. Does anyone know of such a container in any of the boost libraries, in another library or a way to accomplish the task using other means (such as iterator adaptors)? I looked at the newly proposed "smart containers" library, but it seems to be solving a different problem despite the similarity with the name I am using to describe what I want. Thanks in advance, David M. Jones

2 1

two boost.threads taking much longer than one
by Andrew Chapman 11 Oct '04

11 Oct '04

Hi everyone, I've got an operation which takes 14 seconds on a single thread, but is taking up to 45 seconds when running via two boost.threads on a dual proc machine (2x 3ghz Xeons, Fedora Core 1). The thread functor objects are being passed a lot of references (about 20) to some very large std::vectors. One thread always reads/writes from the start of the vectors to their midpoint, and the second thread from (midpoint+1) to the end of the vectors. The only thing I can think of is that the threads are taking a long time to fork and get running, perhaps moving a lot of stack data around or something? When I look at the output of 'top' with threads displayed, I see the two threads appear, but they only use about 50-60% CPU utilization each. The system monitor shows mostly red (Kernel) as opposed to blue (User). Any ideas? -- Andrew Chapman Senior Technical Director - Framestore CFC

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Re: Re: [Boost-users] function_traits inheritance
by Victor Morilla 11 Oct '04

11 Oct '04

Peter Dimov wrote: >Victor Morilla wrote: >> >> template <typename FnType, FnType* fn> >> struct Translator<FnType, fn, 0> : >> function_traits<FnType> >> { >> typedef result_type type; > typedef typename function_traits<FnType>::result_type type; >> }; The question is, why result_type type definition is not inherited from function_traits ? ______________________________________________ Renovamos el Correo Yahoo!: ¡100 MB GRATIS! Nuevos servicios, más seguridad http://correo.yahoo.es

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function_traits inheritance
by Victor Morilla 11 Oct '04

11 Oct '04

Guess someone why this code fails ? (g++3.3) ---- begin ----------------------- #include <boost/type_traits.hpp> #include <iostream> using namespace std; using namespace boost; int foo() { return 10; } template <typename FnType, FnType* fn, int Arity = function_traits<FnType>::arity> struct Translator; template <typename FnType, FnType* fn> struct Translator<FnType, fn, 0> : function_traits<FnType> { typedef result_type type; }; int main(int argc, char** argv) { Translator<int (), &foo>::type x; } ------------------- end code ------------------ error: ISO C++ forbids declaration of `result_type' with no type --------------------- end error ------------------- And another question: is there a portable equivalent to: Translator<typeof(foo), &foo> Thanks ______________________________________________ Renovamos el Correo Yahoo!: ¡100 MB GRATIS! Nuevos servicios, más seguridad http://correo.yahoo.es

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Problems in compilation with Boost
by Debayan Chaudhuri 11 Oct '04

11 Oct '04

Hi, I am evaluating Boost for use in our project. The platform OS is FreeBSD 4.9; which comes with gcc-2.95.3. I downloaded boost_1.30.0 and compiled the thread library on the FreeBSD box. When I try to compile a small test program using Boost threads; I encounter hundreds of compiler errors; mostly in the Boost header files. Is there a workaround to this ? Which version of Boost works with gcc-2.95.3 and what are the compiler options that will make it compile properly? regards, Debayan.

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RE: [Boost-users] Problems with compiling Filesystem library on Solaris
by Barak Simon 11 Oct '04

11 Oct '04

By now I had time to check your suggestion, but I'm afraid I still get the same error when building boost libs: "/db/pub/eq/build/src/boost_1_31_0/boost/iterator/iterator_facade.hpp", line 622: Error: Could not find a match for boost::iterator_core_access::equal<boost::iterator_core_access::Facade1, boost::iterator_core_access::Facade2>(const boost::filesystem::directory_iterator, const boost::filesystem::directory_iterator, boost::is_convertible<boost::filesystem::directory_iterator, boost::filesystem::directory_iterator>). "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../src/operations_posix_windows.cpp", line 176: Where: While instantiating "boost::operator==<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int, boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>(const boost::iterator_facade<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>&, const boost::iterator_facade<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>&)". "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../src/operations_posix_windows.cpp", line 176: Where: Instantiated from non-template code. Are you sure that is the only line I need to comment out? Thanks, Barak ________________________ Barak Simon GED IT Core Platform 190 George St. Sydney, 2000 Phone +61 2 925 85070 Fax +61 2 925 95050 barak.simon+external@db. com To: boost-users(a)lists.boost.org Sent by: cc: boost-users-bounces@list Subject: RE: [Boost-users] Problems with compiling Filesystem library on Solaris s.boost.org 11/10/2004 11:45 Please respond to boost-users Thanks for the swift reply! In the interim I commented out the 2-3 problematic methods (which I am not using anyway) in the filesystem lib, but I like your solution better. A question on that though: On your solution, what exactly am I commenting out, that is, can the workaround break some other boost library or a significant assumption? Thanks, Barak Tomas.Puverle@morganstan ley.com To: boost-users(a)lists.boost.org Sent by: cc: boost-users-bounces@list Subject: RE: [Boost-users] Problems with compiling Filesystem library on Solaris s.boost.org 08/10/2004 18:47 Please respond to boost-users > Hi, > I get the following error from the Filesystem library when > building boost 1_31 on Solaris with sunpro compiler: > > "/db/pub/eq/build/src/boost_1_31_0/boost/iterator/iterator_fac > ade.hpp", line 622: Error: Could not find a match for > boost::iterator_core_access::equal<boost::iterator_core_access > ::Facade1, boost::iterator_core_access::Facade2>(const > boost::filesystem::directory_iterator, const > boost::filesystem::directory_iterator, > boost::is_convertible<boost::filesystem::directory_iterator, > boost::filesystem::directory_iterator>). > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: While instantiating > "boost::operator==<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int, > boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>(const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&, const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&)". > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: Instantiated from non-template code. > > > > It looks suspiciously similar to bug "[ 976241 ] Compiler > error for tokenizer on Solaris" from 2004-06-20, with the > difference that I am using version 5.3 of sunpro rather than 5.5. I have submitted a similar problem and the proposed fix recently. I am just waiting on our developers to confirm that it works before submitting it to boost, but it seems to fix the tokenizer problem, too. For a quick workaround (before the patch is applied) do this: At the top of boost/type_traits/detail/bool_trait_def.hpp you will see something like this: #if defined(__SUNPRO_CC) # define BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(C) \ typedef mpl::bool_< C > type; \ enum { value = type::value }; \ /**/ # define BOOST_TT_AUX_BOOL_C_BASE(C) //1 Comment out the line marked with //1. That seems to have fixed my problems with both 5.3 and 5.5. HTH, Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

1 0

Function type transformation and manipulation traits?
by Aaron W. LaFramboise 11 Oct '04

11 Oct '04

Are there any Boost support for manipulating function types? Operations I have in mind include: setting return type, setting argument type, changing number of arguments, et cetera. If not, is there some generally accepted way to accomplish this, and is any work being done to add this feature to Boost? Aaron W. LaFramboise

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RE: [Boost-users] Problems with compiling Filesystem library on Solaris
by Barak Simon 11 Oct '04

11 Oct '04

Thanks for the swift reply! In the interim I commented out the 2-3 problematic methods (which I am not using anyway) in the filesystem lib, but I like your solution better. A question on that though: On your solution, what exactly am I commenting out, that is, can the workaround break some other boost library or a significant assumption? Thanks, Barak Tomas.Puverle@morganstan ley.com To: boost-users(a)lists.boost.org Sent by: cc: boost-users-bounces@list Subject: RE: [Boost-users] Problems with compiling Filesystem library on Solaris s.boost.org 08/10/2004 18:47 Please respond to boost-users > Hi, > I get the following error from the Filesystem library when > building boost 1_31 on Solaris with sunpro compiler: > > "/db/pub/eq/build/src/boost_1_31_0/boost/iterator/iterator_fac > ade.hpp", line 622: Error: Could not find a match for > boost::iterator_core_access::equal<boost::iterator_core_access > ::Facade1, boost::iterator_core_access::Facade2>(const > boost::filesystem::directory_iterator, const > boost::filesystem::directory_iterator, > boost::is_convertible<boost::filesystem::directory_iterator, > boost::filesystem::directory_iterator>). > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: While instantiating > "boost::operator==<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int, > boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>(const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&, const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&)". > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: Instantiated from non-template code. > > > > It looks suspiciously similar to bug "[ 976241 ] Compiler > error for tokenizer on Solaris" from 2004-06-20, with the > difference that I am using version 5.3 of sunpro rather than 5.5. I have submitted a similar problem and the proposed fix recently. I am just waiting on our developers to confirm that it works before submitting it to boost, but it seems to fix the tokenizer problem, too. For a quick workaround (before the patch is applied) do this: At the top of boost/type_traits/detail/bool_trait_def.hpp you will see something like this: #if defined(__SUNPRO_CC) # define BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(C) \ typedef mpl::bool_< C > type; \ enum { value = type::value }; \ /**/ # define BOOST_TT_AUX_BOOL_C_BASE(C) //1 Comment out the line marked with //1. That seems to have fixed my problems with both 5.3 and 5.5. HTH, Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

1 0

Help ... BOOST::thread 's certain constuctor methods fails with STLPort
by Raj 09 Oct '04

09 Oct '04

Hi I have build boost libraries for a) regular gcc b) gcc-STLPort the following code works perfectly for "gcc" and throws up the following errors for "gcc-STLPort". // this is my function object that // takes in input parameters as part of its constructor. func_obj instance(data,m_regMap); boost::shared_ptr<thread> pThread(new boost::thread(instance)); ERROR: mystuff.cpp:101: undefined reference to `boost::thread::thread[in-charge] (boost::function0<void, _STL::allocator<boost::funct ion_base> > const&)' If I assume that the boost runtime library has not been linked, that is not the case.(ldd tells me that i have) whereever I use 'xtime','lock' or 'condition' it doesn't complain. WHAT IS STRANGE IS THE FOLLOWING COMPILES boost::thread thrd; boost::thread thrd(func_obj); // it is the actual fo not an instance. Any help would be greatly appreciated. This happens on Linux/with STLPort 4.6.2/gcc 3.2.3

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How to compile BOOST on Linux with NPTL threads and STLPort
by Raj 09 Oct '04

09 Oct '04

Hi, I am trying to use BOOST thread and regex libraries on Linux. I am able to compile them with sTOOLSS=gcc-stlport option. But, I would also like to specify that I would like to use the NPTL thread lib instead of pthread. How can I do it ? Any help would be greatly appreciated. Thanks in Advance Raja

2 3

building graph library
by kyle huang 09 Oct '04

09 Oct '04

i just started looking at the boost libraries and thus i'm a total beginner. i'm trying to build the graph library in particular, and i haven't had any luck at all. first, is it a buildable library, or is it just a collection of templates? if so (collection of templates), how do i use it? i'm using windows xp, and building for Visual Studio 6 thanks!

3 2

BLL: Confusing sig example code in documentation
by Markus Larsson 09 Oct '04

09 Oct '04

from the BLL/bind documentaion on the cvs: struct A { // the return type equals the third argument type: template<class T1, T2, T3> T3 operator()(const T1& t1, const T2& t2, const T3& t3); template <class Args> class sig { // get the third argument type (4th element) typedef typename boost::tuples::element<3, Args>::type T3; public: typedef typename boost::remove_cv<T3>::type type; } }; To begin with this piece of code has 2 syntax errors. template<class T1, T2, T3> // should have class before all parameters struct sig { ... } // missing semicolon If a first time user copy/pastes the example, fixes the syntax errors, defines operator() and tries to call the function with: int i = 7; bind( A(), 1, 2, _1) (i); she gets a hard to parse error because operator() wasn't declared const. I see two possible solutions: 1) Add const to the declaration 2) mention the non constness and show how to call the function object using var(func), with a short note on why that is needed.

1 0

shared_ptr interactions
by eric lindvall 08 Oct '04

08 Oct '04

I have created a simple template to make instantiation of shared_ptrs a little prettier. Here is an abridged version of the template: template <class T> class ManagedPointer : public boost::enable_shared_from_this<T> { public: typedef boost::shared_ptr<T> shared_ptr; public: static shared_ptr create () { return (shared_ptr (new T ())); } template <class A1> static shared_ptr create (A1 a1) { return (shared_ptr (new T (a1))); } }; This allows for me to create a class: class TestClass : public ManagedPointer<TestClass> { public: TestClass(); }; and create an instance by: TestClass::shared_ptr test = TestClass::create(); I have noticed in certain cases I get very strange behaviour. Most recently I've seen things hanging in the shared_ptr destructor. Changing the code to: TestClass::shared_ptr test (new TestClass()); does "solve" the problem. Is there something subtle in how the templates and subclassing are interacting that I am not understanding? thanks. e.

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boost implementation
by Gast 128 08 Oct '04

08 Oct '04

Dear all, Browsing through source files of boost, I see that some libraries reimplement common idioms found in other libraries. For example the tuple library reimplements its own compile time if and it's own typelist. I guess it would be better if high level boost libraries(e.g. regex, threads, to some extend also the tuples) would use the low level boost libraries (e.g. preprocessor, type_traits, mpl). Besides bugfixes and platform/compiler workarounds, it has also a documentary advantage. If you are familiar with mpl for example, one knows how to interpret the construct with if_. Also one can better interact with libraries if they are using the same base constructs. There almost no disadvantages, because all the low level boost libraries are template based. But probably this is a matter of time, because at first look at the variant library, I see that it uses the mpl. And people are talking about the fusion library for the tuples. Are there boost developers who can comment on this? Wkr, me.

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RE: [Boost-users] Problems with compiling Filesystem library on Solaris
by Puverle, Tomas (IT) 08 Oct '04

08 Oct '04

> Hi, > I get the following error from the Filesystem library when > building boost 1_31 on Solaris with sunpro compiler: > > "/db/pub/eq/build/src/boost_1_31_0/boost/iterator/iterator_fac > ade.hpp", line 622: Error: Could not find a match for > boost::iterator_core_access::equal<boost::iterator_core_access > ::Facade1, boost::iterator_core_access::Facade2>(const > boost::filesystem::directory_iterator, const > boost::filesystem::directory_iterator, > boost::is_convertible<boost::filesystem::directory_iterator, > boost::filesystem::directory_iterator>). > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: While instantiating > "boost::operator==<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int, > boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>(const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&, const > boost::iterator_facade<boost::filesystem::directory_iterator, > boost::filesystem::path, boost::single_pass_traversal_tag, > boost::filesystem::path&, int>&)". > > "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../sr c/operations_posix_windows.cpp", line 176: Where: Instantiated from non-template code. > > > > It looks suspiciously similar to bug "[ 976241 ] Compiler > error for tokenizer on Solaris" from 2004-06-20, with the > difference that I am using version 5.3 of sunpro rather than 5.5. I have submitted a similar problem and the proposed fix recently. I am just waiting on our developers to confirm that it works before submitting it to boost, but it seems to fix the tokenizer problem, too. For a quick workaround (before the patch is applied) do this: At the top of boost/type_traits/detail/bool_trait_def.hpp you will see something like this: #if defined(__SUNPRO_CC) # define BOOST_TT_AUX_BOOL_TRAIT_VALUE_DECL(C) \ typedef mpl::bool_< C > type; \ enum { value = type::value }; \ /**/ # define BOOST_TT_AUX_BOOL_C_BASE(C) //1 Comment out the line marked with //1. That seems to have fixed my problems with both 5.3 and 5.5. HTH, Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited.

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Problems with compiling Filesystem library on Solaris
by Barak Simon 08 Oct '04

08 Oct '04

Hi, I get the following error from the Filesystem library when building boost 1_31 on Solaris with sunpro compiler: "/db/pub/eq/build/src/boost_1_31_0/boost/iterator/iterator_facade.hpp", line 622: Error: Could not find a match for boost::iterator_core_access::equal<boost::iterator_core_access::Facade1, boost::iterator_core_access::Facade2>(const boost::filesystem::directory_iterator, const boost::filesystem::directory_iterator, boost::is_convertible<boost::filesystem::directory_iterator, boost::filesystem::directory_iterator>). "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../src/operations_posix_windows.cpp", line 176: Where: While instantiating "boost::operator==<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int, boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>(const boost::iterator_facade<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>&, const boost::iterator_facade<boost::filesystem::directory_iterator, boost::filesystem::path, boost::single_pass_traversal_tag, boost::filesystem::path&, int>&)". "/db/pub/eq/build/src/boost_1_31_0/libs/filesystem/build/../src/operations_posix_windows.cpp", line 176: Where: Instantiated from non-template code. It looks suspiciously similar to bug "[ 976241 ] Compiler error for tokenizer on Solaris" from 2004-06-20, with the difference that I am using version 5.3 of sunpro rather than 5.5. My guess is there must be some flag/macro/workaround I am missing (as this specific library is supposed to be portable to many OSs and compilers) , but have no idea what that may be. Any suggestions would be a blessing. Thanks, Barak ________________________ Barak Simon GED IT Core Platform Deutsche Bank 190 George St. Sydney, 2000 Phone +61 2 925 85070 Fax +61 2 925 95050 -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

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Typelists
by Puverle, Tomas (IT) 07 Oct '04

07 Oct '04

What is the status of typelist support in boost? I read through a backlog of email in the archives but the last ones are from ~2002. Grepping through the source of 1.31.0 for (typelist | type_list) reveals some in the detail namespace for python, but that's all. Thanks, Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited.

2 1

uBLAS lapack bindings
by Daniel L Elliott 07 Oct '04

07 Oct '04

Hello, I have a question about using uBLAS/LAPACK bindings on AIX 5.1 and VA6. I am doing something like the following: matrix<double> matrixTwo(200,200); identity_matrix<double> identMatrix = identity_matrix<double>(200); int inverseInfo = gesv(matrixTwo,identMatrix); I am getting the following errors: line 102.36: 1540-0130 (S) "matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::a\ llocator<double> > > >::size1" is not declared "/npd/delliott/boost/numeric/bindings/traits/matrix_traits.hpp", line 102.7: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::traits::matrix_size1<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > > >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > > &)". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 135.40: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double, std::allocator<double> > > &, identity_matrix<double> &)". "test.cpp", line 120.21: 1540-0700 (I) The previous message was produced while processing "main()". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 99.9: 1540-0038 (S) The name "typename traits::matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > >>::matrix_structure" is not a type. "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 95.9: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double>,boost::numeric::bindings::traits::detail::array<int> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > > &, array<int> &, identity_matrix<do...". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 137.16: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<double\ ,std::allocator<double> > > &, identity_matrix<double> &)". As I understand it, I can simply pass the uBLAS matrix types and the traits/lapack .hpp files will take care of the rest. Any light that could be shed upon this subject would be of great assistance. By the way, I would have happily send this to uBLAS-dev, but have not been admitted yet :( Thank you, Dan

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FW: Compilation problem with boost on SunCC (Forte 6.2 & 8)
by Puverle, Tomas (IT) 06 Oct '04

06 Oct '04

A repost, since no answer to my previous mail. > -----Original Message----- > From: Puverle, Tomas (IT) > Sent: 01 October 2004 15:05 > To: 'boost(a)lists.boost.org' > Subject: Compilation problem with boost on SunCC (Forte 6.2 & 8) > > Please find attached a small program and a the resulting > compilation errors on SunCC. > This occurs in iterator_facade.hpp, operator != (), calling > to interator_core_access::equal. I have tracked this down to > the following problem: > > f(mpl::true_); > f(mpl::false_); > > f(is_convertible<>()); //will not work > > is_convertible<> derives from mpl::bool<>, however it seems > that a bug in the compiler prevents it from converting to > mpl::true_/mpl::false_ in the above scenario (and in the > program attached) > > A workaround for this is to change it to the following: > > f(mpl::true_); > f(mpl::false_); > > f(mpl::bool_<is_convertible<>::value>()); > > Presumably this will be present in other places but this is > the only one our developers have hit so far. > > Thanks, > > Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited.

3 3

Re: Problem compiling Windows C++ code wit regex
by arno.schaefer＠sqs.de 06 Oct '04

06 Oct '04

> Yes, that occurs if you have a > > using namespace std; > > statement in your code, and you are using Microsoft Visual C++ 6 (it's > actually a compiler bug). > > Removing (or possibly moving until after all your includes, or just > re-ordering your includes) the using statement will fix the issue. > Thanks very much for that hint John, I found two places in our header which are using the "using namespace std;". After I have switched that to the explicit "using" statements I could also switch back to your default "user.hpp". Perhaps I can ask one more question about this strange behaviour, just because I want to understand why: I try to use my own string class, which is inherited from std::string. Defining "VC6_STUPID_BEHAVIOUR" in the example code below compile and run the code successfuly, using the expanded name leads to following compiler error: error C2614: 'MyCString' : illegal member initialization: 'string' is not a base or member You know WHY??? Also because of the same compiler error in VC6 or is there something else wrong. On Solaris and HP-UX it works fine in every combination. // vvvvvvvvvvvvvvv snipp vvvvvvvvvvvvvvvv #include <string> #include <iostream> #ifdef VC6_STUPID_BEHAVIOUR using std::string; # define std_string string #else # define std_string std::string #endif class MyCString : public std_string { public: MyCString(const char *s_); : std_string(s_) { std::cout << "\"" << *this << "\"" << std::endl; }; }; int main (int argc, char *argv[]) { MyCString s(argv[0]); return 0; } // ^^^^^^^^^^^^ snipp ^^^^^^^^^^^^

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boost install with gentoo issue?
by dave＠superelite.net 06 Oct '04

06 Oct '04

Well, more likely my mistake, ive been up awhile.. I installed the boost libs onto my gentoo machine with emerge. I then added -lboost_regex to my linker flags..thats it. When I run my app, it hangs, I think when waiting on pulling data of off a UDP socket. Though I cant tell, I'm about to crash and its been one of those days. But I do know everything is back to normal when I take -lboost_regex out of the flags again. I know I'm awfully vague due to lazy/tiredness, but does this ring a bell with anyone? I've installed boost the traditional way (bjam) on other linux distros before without any issue, but ive never tried emerge before. I dont know if this has something to do with it, or i am somehow missing something really obvious.. Thanks for bearing with me, Dave

4 4

uBLAS LAPACK bindings
by Daniel L Elliott 06 Oct '04

06 Oct '04

Hello, Are the uBLAS LAPACK bindings for general matrices or for any type of matrix? Do they have to use a particular type of storage? This is how it appears in the code. Would anyone like to talk about how other types of matrices might be used? Thank you, Dan

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RE: [Boost-users] uBlas + ATLAS...
by Lyon, Richard 06 Oct '04

06 Oct '04

Hmm, Atlas requires cygwin as minimum on WinXP. The install won't work with msys from mingw. Regards ... -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of DrJekyll Sent: Wednesday, 6 October 2004 4:41 AM To: boost-users(a)lists.boost.org Subject: [Boost-users] uBlas + ATLAS... dear all, I have a question about uBlas and ATLAS, and somewhat off topic. In fact , i try to install ATLAS under WIN XP (with out cygwin) with out success. My question is have any one succeed in installing this library and whether uBlas can be used in the place of Atlas. Thank for your attention. JK _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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uBlas + ATLAS...
by DrJekyll 05 Oct '04

05 Oct '04

dear all, I have a question about uBlas and ATLAS, and somewhat off topic. In fact , i try to install ATLAS under WIN XP (with out cygwin) with out success. My question is have any one succeed in installing this library and whether uBlas can be used in the place of Atlas. Thank for your attention. JK

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Compilation problem with boost on SunCC (Forte 6.2 & 8)
by Puverle, Tomas (IT) 05 Oct '04

05 Oct '04

A repost, since no answer to my previous mail. > > Please find attached a small program and a the resulting > compilation > > errors on SunCC. > > This occurs in iterator_facade.hpp, operator != (), calling to > > interator_core_access::equal. I have tracked this down to the > > following problem: > > > > f(mpl::true_); > > f(mpl::false_); > > > > f(is_convertible<>()); //will not work > > > > is_convertible<> derives from mpl::bool<>, however it seems > that a bug > > in the compiler prevents it from converting to > mpl::true_/mpl::false_ > > in the above scenario (and in the program attached) > > > > A workaround for this is to change it to the following: > > > > f(mpl::true_); > > f(mpl::false_); > > > > f(mpl::bool_<is_convertible<>::value>()); > > > > Presumably this will be present in other places but this is > the only > > one our developers have hit so far. > > > > Thanks, > > > > Tom -------------------------------------------------------- NOTICE: If received in error, please destroy and notify sender. Sender does not waive confidentiality or privilege, and use is prohibited.

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uBLAS problem under Borland C++builder
by 徐亮 05 Oct '04

05 Oct '04

Hi Boost people I'm starting with uBLAS matrix class under Borland C++ builder. I copied a sample from boost document and complied it. There are always mistakes in "traits.hpp". I tried again in VC and no problem occured. I just wonder what's wrong with BC. I have copied the boost dir into BC's Include dir and have added it in Project->Options->Directories. Here's my copied code: #include <boost/numeric/ublas/matrix.hpp> #include <boost/numeric/ublas/io.hpp> int main () { using namespace boost::numeric::ublas; matrix<double> m (3, 3); for (unsigned i = 0; i < m.size1 (); ++ i) for (unsigned j = 0; j < m.size2 (); ++ j) m (i, j) = 3 * i + j; std::cout << m << std::endl; } Thanx 　　　　　　　

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Problem compiling Windows C++ code wit regex
by arno.schaefer＠sqs.de 05 Oct '04

05 Oct '04

Hi all, I try to compile some older C++ Code with your RegEx class and got in some source code problems with some ambiguity I believe between the std and the global namespace. I followed the include hierarchie starting from "boost/regex.h" down to "boost\config\stdlib\dinkumware.hpp" and here was my first problem, why this stdlib implementation was selected, I don't think, that this is the normal implementation for "VC++ 6.0 SP6" what I am using!? The errors I got are located in some windows system header and look like this only in one source file: : d:\programme\microsoft visual studio\vc98\include\objidl.h(9901) : error C2668: 'memset' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(435) : error C2668: 'memcmp' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(459) : error C2668: 'memcmp' : ambiguous call to overloaded function Error executing cl.exe. Any idea what kind of define can cause this problem? I visit every included headerfile and look also in the expanded preprocessor code (*.i file) and didn't see exactly what happend, so have somebody an idea? Thanks for your help Arno

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RE: [Boost-users] uBLAS lapack bindings
by Foster, Gareth 05 Oct '04

05 Oct '04

Excuse the slight drift offtopic, but is this part of boost intended for 3d maths/graphics? -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Daniel L Elliott Sent: 04 October 2004 19:38 To: boost-users(a)lists.boost.org Subject: [Boost-users] uBLAS lapack bindings Hello, I have a question about using uBLAS/LAPACK bindings on AIX 5.1 and VA6. I am doing something like the following: matrix<double> matrixTwo(200,200); identity_matrix<double> identMatrix = identity_matrix<double>(200); int inverseInfo = gesv(matrixTwo,identMatrix); I am getting the following errors: line 102.36: 1540-0130 (S) "matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::ublas::r ow_major,boost::numeric::ublas::unbounded_array<double,std::a\ llocator<double> > > >::size1" is not declared "/npd/delliott/boost/numeric/bindings/traits/matrix_traits.hpp", line 102.7: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::traits::matrix_size1<boost::numeric::ublas::matri x<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_a rray<double,std::allocator<double> > > >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double,std::allocator<double> > > &)". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 135.40: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double, std::allocator<double> > > &, identity_matrix<double> &)". "test.cpp", line 120.21: 1540-0700 (I) The previous message was produced while processing "main()". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 99.9: 1540-0038 (S) The name "typename traits::matrix_traits<boost::numeric::ublas::matrix<double,boost::numeric::u blas::row_major,boost::numeric::ublas::unbounded_array<double,std::allocator <double> > >>::matrix_structure" is not a type. "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 95.9: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double>,boost::numeric::bindings::t raits::detail::array<int> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double,std::allocator<double> > > &, array<int> &, identity_matrix<do...". "/npd/delliott/boost/numeric/bindings/lapack/gesv.hpp", line 137.16: 1540-0700 (I) The previous message was produced while processing "boost::numeric::bindings::lapack::gesv<boost::numeric::ublas::matrix<double ,boost::numeric::ublas::row_major,boost::numeric::ublas::unbounded_array<dou ble,std::allocator<double> > >,boost::numeric::ublas::identity_matrix<double> >(matrix<double,boost::numeric::ublas::row_major,boost::numeric::ublas::unbo unded_array<double\ ,std::allocator<double> > > &, identity_matrix<double> &)". As I understand it, I can simply pass the uBLAS matrix types and the traits/lapack .hpp files will take care of the rest. Any light that could be shed upon this subject would be of great assistance. By the way, I would have happily send this to uBLAS-dev, but have not been admitted yet :( Thank you, Dan _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] boost install with gentoo issue?
by Foster, Gareth 05 Oct '04

05 Oct '04

I used boost via the fedora rpms, and that was okay, maybe that will help you narrow down the problem (ie maybe it's a gentoo thing rather than a packaged boost thing). Cheers mate Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of dave(a)superelite.net Sent: 05 October 2004 04:59 To: boost-users(a)lists.boost.org Subject: [Boost-users] boost install with gentoo issue? Well, more likely my mistake, ive been up awhile.. I installed the boost libs onto my gentoo machine with emerge. I then added -lboost_regex to my linker flags..thats it. When I run my app, it hangs, I think when waiting on pulling data of off a UDP socket. Though I cant tell, I'm about to crash and its been one of those days. But I do know everything is back to normal when I take -lboost_regex out of the flags again. I know I'm awfully vague due to lazy/tiredness, but does this ring a bell with anyone? I've installed boost the traditional way (bjam) on other linux distros before without any issue, but ive never tried emerge before. I dont know if this has something to do with it, or i am somehow missing something really obvious.. Thanks for bearing with me, Dave _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Re: Problem compiling Windows C++ code wit regex
by arno.schaefer＠sqs.de 05 Oct '04

05 Oct '04

> afaik, that company (dimkumwhatever) wrote the MS stl library ... > Thanks for that information Gareth, I haven't noticed that til today, but I have still the problem with the "ambiguity" compilation error in the MS system header... regards Arno

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RE: [Boost-users] Problem compiling Windows C++ code wit regex
by Foster, Gareth 04 Oct '04

04 Oct '04

afaik, that company (dimkumwhatever) wrote the MS stl library ... -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of arno.schaefer(a)sqs.de Sent: 04 October 2004 15:37 To: boost-users(a)lists.boost.org Subject: [Boost-users] Problem compiling Windows C++ code wit regex Hi all, I try to compile some older C++ Code with your RegEx class and got in some source code problems with some ambiguity I believe between the std and the global namespace. I followed the include hierarchie starting from "boost/regex.h" down to "boost\config\stdlib\dinkumware.hpp" and here was my first problem, why this stdlib implementation was selected, I don't think, that this is the normal implementation for "VC++ 6.0 SP6" what I am using!? The errors I got are located in some windows system header and look like this only in one source file: : d:\programme\microsoft visual studio\vc98\include\objidl.h(9901) : error C2668: 'memset' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(435) : error C2668: 'memcmp' : ambiguous call to overloaded function d:\programme\microsoft visual studio\vc98\include\objbase.h(459) : error C2668: 'memcmp' : ambiguous call to overloaded function Error executing cl.exe. Any idea what kind of define can cause this problem? I visit every included headerfile and look also in the expanded preprocessor code (*.i file) and didn't see exactly what happend, so have somebody an idea? Thanks for your help Arno

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C++ Parsing - oops
by Foster, Gareth 03 Oct '04

03 Oct '04

Hello John, Joel, I didn't mean to knock your work with that last email John, it might have come across badly, it was meant more as a compliment to spirit and a reference to the fact that it 'appears' to fit the bill for what I want to do better, not to bash regex, I like regex too. For the record it needn't be 'perfect' indexing of the C++ code, I don't mind if I get two hits for the same classname for example. I used regex for a tool to index the C++ and C files themselves, so I could quickly search for file names using regular expressions, it works great! So thank you both, no offence caused I hope. So, will spirit be the best way then? Glad to hear its already a part of boost btw, congratulations mate. Cheers! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of John Maddock Sent: 30 September 2004 11:33 To: Subject: Re: [Boost-users] Boost:regex and C++ Parsing - Clarification > Thank you Caleb and Hartmut for your replies. You both seem to think regex > is a bad way to go, I will explain better what I want to write just to be > clear. > > I want to write a tool (cli probably) where I can say, here you go, here > is > a large folder full of code, go and parse it. I will store the results in > XML format somewhere, then, I can do say, "<myapp> class someclass" and > the > program will go and find where that class is declared/defined using its > database, saving me headache. > > So I thought I could use one of the C++ expat wrappers, and boost regex > looked powerful enough to do the parsing if only I were handy enough with > regular expression syntax. > > Anyway, I don't know if that better explanation will make any difference > to > you recommendations, I look forward to reading you opinions. > > Oh, and the example I looked at is here Hartmut: > http://boost.org/libs/regex/example/snippets/regex_search_example.cpp - > that > is what got me thinking I might actually be able to take on this > challenge. It depends what you want to do: if you want to use a "real" C++ parser then you will also have to preprocess the code (including the includes) and then parse the code. In theory this gives you a "perfect" result, but only if you know what include paths to use, and what predefined macros should be set (think about conditional code blocks). Regexes on the other hand, don't require you to preprocess the code, but can get confused by macros and the like. So you have to choose the way that best meets your expectations, and live with the defects either which way ;-) To solve your problem BTW, why not scan through the file for line starts (keeping count obviously!), and at each line start see if it's also the start of the regex you are interested in (one that matches a class definition for example), if you do this don't forget to either: prefix your expression with \A or Pass the match_continuous flag to regex_search, Either will anchor the search at the start of the line you are checking, and prevent the whole text being searched. John. _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

5 4

Re: Boost:regex and C++ Parsing - Spirit!
by Foster, Gareth 03 Oct '04

03 Oct '04

Wow, I just read through the 1st few pages of the spirit docs, and I can safely say, that is as close to naked women as C++ code will ever be, its such a sexy idea. One library, and you can parse any sort of config file, code or anything! Amazing. Well, any lingering desire to use regex for my pet project has now left the building, I can't wait to have a play with spirit. When will it be a part of boost? Is it worth installing it seperately (I'd hate to do that and have a new boost appear the day after). Also, reading this made up my mind that I should get a nice magazine about STL and C++ matters, can anyone recommend one (UK based preferable, but all sugestions welcome). Interetsing stuff, thank you all! Gaz

6 6

boost::multi_array class member
by Sergio Ferrari 02 Oct '04

02 Oct '04

Hi to all. Sorry for my English. I'm trying to use a boost::multi_array as a private member of a class. How I can specifying the number of elements for every dimensions into the constructor? #include <iostream> #include "boost/multi_array.hpp" using namespace std; typedef boost::multi_array<int, 2> table; class X { public: X(); ~X(){}; // ... void do_something(); private: table tab; boost::array<table::index, 2> dims; }; X::X() { dims = {{3, 5}}; // fails table(dims); } int main() { X x; x.do_something(); system("PAUSE"); return 0; } Thanks to all. Sergio --------------------------------- Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish.

1 0

How to inherit from boost::multi_array
by Thomas Mensch 02 Oct '04

02 Oct '04

Dear List, I am using boost 1.31.0 on Linux (with gcc 3.3.2) I would like to create a 2D array class, which inherits from boost::multi_array<double, 2> class. However I have problems with the copy constructor of my class Array. Below is the code, which I am trying to run. #include <boost/multi_array.hpp> class Array : public boost::multi_array<double,2> { public: Array (void) : boost::multi_array<double, 2> () {} Array (const int nrow, const int ncol) : boost::multi_array<double, 2> (boost::extents[nrow][ncol]) {} Array (const Array& other) : boost::multi_array<double, 2> (other) {} ~Array (void) {} Array& operator= (const Array& rhs) { if (&rhs != this) { boost::multi_array<double, 2>::operator= (rhs); } return *this; } }; /* class Array */ I guess that I forget to provide some information to my derived class, but I cannot find which one. Is there a way to simply inherits from boost::multi_array? Many thanks in advance, Thomas

2 1

[serialization1.32/vc7.1]: What's wrong with this class??
by Francis ANDRE 02 Oct '04

02 Oct '04

Hi I got a access violation on 0x00000000 with the class DDD but I cannot figure out what's wrong When the symbol NO_EXCEPTION is defined, the member acccode is set to an instance of ACCCODE and the serialization is working fine. But when this symbol is undefined, one gets the exception. I am suspecting the input serialization to bypass the loading of the member FIELD* field (which is following the "acccode" member) which leads to an exception when the next member DISP* disp is loaded but I have no way to check it out any idea?? Francis Source code below and also joined in annex ---------------------------------------------------------------------- #include <iostream> #include <fstream> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> using namespace std; class FIELD : public string { private: friend class boost::serialization::access; friend std::ostream & operator<<(std::ostream &os, const FIELD&); template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & boost::serialization::base_object<string>(*this); ar & member; } private: string member; FIELD(){} public: FIELD(const string& name): string(name){} }; class DDD { private: friend class boost::serialization::access; friend std::ostream & operator<<(std::ostream &os, const DDD& dd); template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & acccode; ar & field; ar & disp; } public: DDD(): acccode(0), disp(0), field(0) {} class ACCCODE { private: friend class boost::serialization::access; friend std::ostream & operator<<( std::ostream &os, const ACCCODE& ); template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & acccode; } public: string acccode; ACCCODE(){} ACCCODE(const string& s) : acccode(s) {} }; class DISP { private: friend class boost::serialization::access; friend std::ostream & operator<<( std::ostream &os, const DISP& ); template<class Archive> void serialize(Archive &ar, const unsigned int version) { ar & disp; } public: string disp; DISP(){} DISP(const string& s) : disp(s) {} }; public: ACCCODE* acccode; FIELD* field; DISP* disp; }; int main(int argc, char* argv[]) { DDD ddd; #ifdef NO_EXCEPTION ddd.acccode = new DDD::ACCCODE("a"); #endif ddd.field = new FIELD("BAR"); ddd.disp = new DDD::DISP(); const char* file = "TEST.txt"; { std::ofstream os(file); boost::archive::text_oarchive oa(os); oa << ddd; } { std::ifstream is(file); boost::archive::text_iarchive ia(is); ia >> ddd; } } ---------------------------------------------------------------------------- -- A good friend will come bail you out of jail.......... but, a true friend....will be sitting next to you saying: "...that was fun." begin 666 test_serialization.cpp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a);65M8F5R.PT*"0E]#0H)<')I=F%T93H-"@D)<W1R M:6YG(&UE;6)E<CL-"@D)1DE%3$0H*7M]#0H)<'5B;&EC.@T*"0E&245,1"AC M;VYS="!S=')I;F<F(&YA;64I.B!S=')I;F<H;F%M92E[?0T*?3L-"@T*#0IC M;&%S<R!$1$0@('L-"@EP<FEV871E.@T*"0EF<FEE;F0@8VQA<W,@8F]O<W0Z M.G-E<FEA;&EZ871I;VXZ.F%C8V5S<SL-"@D)9G)I96YD('-T9#HZ;W-T<F5A M;2 F(&]P97)A=&]R/#PH<W1D.CIO<W1R96%M("9O<RP@8V]N<W0@1$1$)B!D M9"D[#0H)"71E;7!L871E/&-L87-S($%R8VAI=F4^#0H)"79O:60@<V5R:6%L M:7IE*$%R8VAI=F4@)F%R+"!C;VYS="!U;G-I9VYE9"!I;G0@=F5R<VEO;BD@ M>PT*"0D)87((a))B!A8V-C;V1E.PT*"0D)87(@)B!F:65L9#L-"@D)"6%R("8@ M9&ES<#L-"@D)?0T*"7!U8FQI8SH-"@D)1$1$*"DZ#0H)"0EA8V-C;V1E*# I M+ T*"0D)9&ES<"@P*2P-"@D)"69I96QD*# I#0H)"0E[?0T*"0EC;&%S<R!! 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G:6%R8VAI=F4@:6$H:7,I.PT*"0EI82 ^/B!D9&0[#0H)?0T*?0T* ` end

1 0

Boost 1.30 with g++ 3.4
by Ben Hutchings 02 Oct '04

02 Oct '04

I have an existing body of code using some parts of Boost 1.30 (Bind, Function, Regex, Thread, and some utilities) and compiled using VC++ 7.1 on Windows. I now need to build with g++ 3.3 or 3.4 on Linux as well, and for various reasons I would prefer to use 3.4. Boost 1.30 predates g++ 3.4 by some way and I know that it won't all work without changes. However, neither will 1.31, and 1.32 has still not been released. I would rather not upgrade to either of these in case they break the existing Windows build. Are there any known bugs or other problems in the above-mentioned libraries from Boost 1.30 when used with g++ 3.4, and if so, any known fixes for them? (Assume I'm using Boost 1.30.2 - I might still have 1.30.0 but upgrading to 1.30.2 should be low-risk.) Ben.

2 1

Are BOOST_BUILD_PATH && BOOST_ROOT necessary?
by Steven T. Hatton 01 Oct '04

01 Oct '04

>From reading the documentation on boost.org, I have gotten the impression I don't need to set $BOOST_BUILD_PATH and $BOOST_ROOT. I'm more than a little confused about how I should use the boost libraries. Part of this comes from the fact that it is not clear to me exactly where the demarkation is between using the build system to build boost, and using it to build my own programs. Some of my confusion comes from the appearant change in configuration requirements described in the documentation. It is suggested I don't need the environment variable used with earlier releases. One of these variables is $BOOST_ROOT, which the documentation used as an example of how to build boost. That example was exactly what I successfully (I believe) build the libraries with. I'm using SuSE Linux 9.1 on a P4 box. Some basic questions are these: When I downloaded and built boost, I first fetched the source for bjam. This is the name of the file I downloaded: boost-jam-3.1.10.tgz It compiled quite nicely, and I copied the resulting bjam jam mkjambase and yyacc to a location in my path. Are there anything other things such as configuration files I need to reside with the binary executables? Are there necessary configuration file that I need to have visible to these programs, even if they are not colocated? I then build boost with the command: bjam --prefix=$BOOST_ROOT "-sTOOLS=gcc" install after setting my BOOST_ROOT the way I wanted it. That resulted in two directories being placed in $BOOST_ROOT/ one is called $BOOST_ROOT/include/ the other is called $BOOST_ROOT/lib/. Under $BOOST_ROOT/include/ I have <path>/boost-1_31/boost/ which contains dozens of header files. I added $BOOST_ROOT/include/boost-1_31 to my $INCLUDE_PATH, and $BOOST_ROOT/lib to my $LIBRARY_PATH and $LD_LIBRARY_PATH variables. Is this the correct way to configure my system to use boost? Is there anything else I need to do in order to compile my programs against the boost headers and libraries? Will the boost libraries work as well as other, comperable libraries using autotools rather than bjam? Are there any special accommodations I need to make in order to use boost with the gnu build tools? Do I need to do anything special to use boost with bjam that does not involve placing files in my current project directories? For example, do I need to provide a global configuration file of some kind? Is it a preferred option, even if not strictly required? There is much remaining in the source directory where I compiled boost. Is that something I need to also put in an accessible place on my system? If so, what so I need to put where, and how to I modify my environment variable to facilitate its use? -- Regards, Steven

4 15

BOOST_CHECK_CLOSE apparent misbehavior
by Ross Boylan 01 Oct '04

01 Oct '04

I get the following error Specification_test.cc(22): error in "specsimple": difference between spec(i, j){0.206788} and results[k]{0.206788} exceeds 1e-05% The numbers agree to all printed digits. I get a maximum relative error (assuming the printed values are rounded from extremes)*(see footnote) of .000001/.206787 = 4.8e-6 < 1e-5. Even doubling this is under the tolerance. As I read the documentation, this should pass. 1e-6 tolerance produces a lot more discrepancies; 1e-4 says they are all OK. Have I misunderstood something, or is something funny going on? In particular, the "%" after "1e-5" in the error message suggests the tolerances are supposed to be in percentage terms, i.e, 1e-5 implies a real tolerance of 1e-7. That would explain things, but I see nothing in the documentation to suggest the tolerance value is a percent. (Well, the docs do say the tolerance can be an integer.) The relevant line is BOOST_CHECK_CLOSE(spec(i, j), results[k], tol); All relevant quantities are doubles. It may be relevant that the program under test includes <cmath>. Debian package libboost-dev 1.31.0-7 on an Athlon system. # g++ --version g++.real (GCC) 3.3.4 (Debian 1:3.3.4-6sarge1) Linux kernel 2.4.26 * In fact, the results value is coded as 0.2067880 in the program, so my calculation likely gives double the possible discrepancy.

2 1

RE: [Boost-users] Re: Boost:regex and C++ Parsing - Spirit!
by Foster, Gareth 01 Oct '04

01 Oct '04

Sheesh, I've learned some new words there. I mean, dictionary.com is as close to naked ... Only joking. I thought it was the perfect way to describe how slick the library was :) that's my effusing done for the day anyway. -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Justin Findlay Sent: 30 September 2004 17:22 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Re: Boost:regex and C++ Parsing - Spirit! On Thu, Sep 30, 2004 at 10:23:22AM +0100, Foster, Gareth wrote: > > Wow, I just read through the 1st few pages of the spirit docs, and I > can safely say, that is as close to naked women as C++ code will ever > be, its such a sexy idea. One library, and you can parse any sort of > config file, code or anything! Amazing. Gentlemen, consider decency. /me covers his eyes in embarassment. > Interetsing stuff, thank you all! Spirit is indeed an elegant library, by utilizing many powerful features of C++ in context it exemplifies what sublime things can be done with the language. Good luck with your project Gaz. (-: Please excuse the offtopic post. No effusions of remonstrance were personally directed. Justin _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

1 0

Forgot to add
by Foster, Gareth 01 Oct '04

01 Oct '04

I also was going to say Joel, you ought to moan about the description of spirit in the docs, I can see it is there in the list of libraries now, and whilst it probably does describe what the library does, it doesn't do it in a way that is very identifiable for those who don't know about the subject, I just plain missed it, despite the fact that I was looking to parse C++. spirit <file:///C:/boost/boost_1_31_0/libs/spirit/index.html> - LL parser framework represents parsers directly as EBNF grammars in inlined C++, from Joel de Guzman and team. Why not something like ... spirit <file:///C:/boost/boost_1_31_0/libs/spirit/index.html> - A customisable framework for parsing any syntax. You will know what I mean and how to describe it properly etc I'm sure. Just a thought :) Gaz

2 1

Boost:regex and C++ Parsing - Clarification
by Foster, Gareth 30 Sep '04

30 Sep '04

Hello, Thank you Caleb and Hartmut for your replies. You both seem to think regex is a bad way to go, I will explain better what I want to write just to be clear. I want to write a tool (cli probably) where I can say, here you go, here is a large folder full of code, go and parse it. I will store the results in XML format somewhere, then, I can do say, "<myapp> class someclass" and the program will go and find where that class is declared/defined using its database, saving me headache. So I thought I could use one of the C++ expat wrappers, and boost regex looked powerful enough to do the parsing if only I were handy enough with regular expression syntax. Anyway, I don't know if that better explanation will make any difference to you recommendations, I look forward to reading you opinions. Oh, and the example I looked at is here Hartmut: http://boost.org/libs/regex/example/snippets/regex_search_example.cpp - that is what got me thinking I might actually be able to take on this challenge. Okay lads, thanks again, cheers Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Hartmut Kaiser Sent: 29 September 2004 18:41 To: boost-users(a)lists.boost.org Subject: RE: [Boost-users] Boost:regex and C++ Parsing Foster, Gareth wrote: > I have a couple of questions, firstly, how might I extend the > example for parsing C++ code for class names so that it > records the line number on which the class is defined? I > thought maybe I could extend the regular expression so that > it has "|(\n)" at the end, or maybe there is another way. In > any case I am not sure if that is the correct way to extend > the regex and I am unsure how to check the regex_match result > to see if it was a new line character I encountered or a class name. Which example you're referring to? > Secondly, are there any efforts anywhere to parse C++ for > other keywords by this approach? I don't know of any efforts going on regarding C++ parsing with the help of regex (non-authoritative answer). But there is the Wave library (Boost review is due shortly), which is a C/C++ preprocessor containing different C++ lexing components, which may be helpful for you during writing a class name extraction tool. Regards Hartmut _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

3 2

RE: [Boost-users] C++ Parsing - oops
by Foster, Gareth 30 Sep '04

30 Sep '04

Hey mate, I've actually come across this, whilst it is really neat, it does require include paths, infact, probably a whole make system to resolve names etc, which I won't always have, so I decided against using it. If I'm wrong on that, please do let me know, since it would be ideal other than that one issue. Thanks! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Volker Boerchers Sent: 30 September 2004 15:30 To: 'boost-users(a)lists.boost.org' Subject: Re: [Boost-users] C++ Parsing - oops Hi Gareth, > So, will spirit be the best way then? Glad to hear its already a part of > boost btw, congratulations mate. there might be another option. The gcc-xml project (http://www.gccxml.org) lets you use gcc for parsing. Volker -- Volker Börchers TECON Systems AG, http://www.tecon.de _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

1 0

Boost uBLAS
by Pascal Bauer 30 Sep '04

30 Sep '04

Hi Boost People, Have just a simple Question: 1. I use the uBLAS matrix class together with the MPI. Is it save to send matrices similar to std::vectors, by using &(Matrix(0, 0)) as the argument for the sending buffer? (Similar as one can do &(Vector[0]) for the std::vector? ) I just use matrix<double> in the code, without any further template specifications. Thanx P.

1 0

Boost.graph read_graphviz problems in CVS head
by Jeffrey Holle 29 Sep '04

29 Sep '04

I attempted to switch from boost_1_31_0 to the CVS head available on Sun Sep 26 20:25:26 PDT 2004. My application uses read_graphviz to read the attached file. When built with the CVS head boost and run, I get the message "parse error" and a segment fault. When build with boost 1_31_0 and run, it works fine. digraph Components { node [ shape = record ]; size="6,6"; 0[label="0",type="Component"]; 1[label="1",type="Component"]; 2[label="2",type="Component"]; 3[label="3",type="Component"]; 4[label="4",type="Component"]; 5[label="5",type="Component"]; 0 -> 1[type="Association"]; 1 -> 4[type="Association"]; 4 -> 0[type="Association"]; 2 -> 5[type="Association"]; }

2 1

Boost:regex and C++ Parsing
by Foster, Gareth 29 Sep '04

29 Sep '04

Hello, I have a couple of questions, firstly, how might I extend the example for parsing C++ code for class names so that it records the line number on which the class is defined? I thought maybe I could extend the regular expression so that it has "|(\n)" at the end, or maybe there is another way. In any case I am not sure if that is the correct way to extend the regex and I am unsure how to check the regex_match result to see if it was a new line character I encountered or a class name. Secondly, are there any efforts anywhere to parse C++ for other keywords by this approach? Many thanks for any help or hints on this, for the record I am really impressed with boost, a while ago, I might have said I didn't want the depandancy, but now I'd put up with that any time, good luck getting boost work into the next C++ standard, it's great! Regards Gaz

3 2

Thread: SUN forte7 64 bits compilation error
by Maxime Larose 29 Sep '04

29 Sep '04

We have used the boost thread library in 32 bits for more than a year. Congrats, it works like a charm. We recently moved our product to Solaris 9 64 bits and now we get compilation errors. (We use forte7.) CC -c -I/BINARIES/sol9/opt/boost_1_30_0 -I../../../ -Qoption CC -xcomdat -mt -fast -xarch=v9 -DBOOST_HAS_THREADS -o sunpro/libboost_thread/condition.o ../src/condition.cpp "../../..//boost/limits.hpp", line 35: Error: Multiple declaration for std::numeric_limits<long long>. "../../..//boost/limits.hpp", line 88: Error: Multiple declaration for std::numeric_limits<unsigned long long>. 2 Error(s) detected. make: *** [sunpro/libboost_thread/condition.o] Error 2 The problem seems to be in ./config/stdlib. I hacked roguewave.hpp to artificially increase the roguewave version number: #ifndef _RWSTD_VER # define BOOST_RWSTD_VER 0x010000 #elif _RWSTD_VER < 0x010000 # define BOOST_RWSTD_VER (_RWSTD_VER << 8) #else # ifdef __sparcv9 # define BOOST_RWSTD_VER 0x20200 # else # define BOOST_RWSTD_VER _RWSTD_VER # endif #endif Now, compilation works fine: CC -c -I/BINARIES/sol9/opt/boost_1_30_0 -I../../../ -Qoption CC -xcomdat -mt -fast -xarch=v9 -DBOOST_HAS_THREADS -o sunpro/libboost_thread/tss.o ../src/tss.cpp "../src/tss.cpp", line 192: Warning (Anachronism): Formal argument 2 of type extern "C" void(*)(void*) in call to pthread_key_create(unsigned*, extern "C" void(*)(void*)) is being passed void(*)(void*). 1 Warning(s) detected. (We've had the warning for the longest time.) I am no boost expert, but that seems to have taken care of the problem: the library works fine as far as I can tell. Are there side effects that I may not be aware of? Is forte7 64 bits generally supported right out of the box? Thanks, Max ------------------------------------------------ Maxime Larose Senior Software Designer Tel: ***-***-**** mlarose(a)broadsoft.com BroadSoft, Inc. http://www.broadsoft.com/

1 0

RE: Converting a Boost implementation of Lambda to VC8 --- Found out about the Newer boost\lambda...
by John Henry 29 Sep '04

29 Sep '04

In Reference to this... I found out about the Upgrade of Lambda in Boost... I have downloaded and recompiled boost with the new Lambda and will try to sort this out myself first... It will be a bit tho as I now have to recompile the other Libraries dependent on boost First before I can go back to the original problem. On a side not: The boost "HEAD" version compiles much better for VC8 then my last one (1.30) jpmythic _____________________________________________________________________ [Edited Original] Subject: [Boost-users] Converting a Boost implementation of Lambda to VC8 so it compiles The basics: New to boost. Converting a project from VC7 to VC8 that uses Lambda functionality. Other issue, (I didn't write this code... so still learning it). The problem: ----------- The original compiles in earlier compilers, but comes up with "Ambiguous" error in VC8. The original code doesn't deal with Issues with MSVC compiliers, this I found in my searches. The fix from the Searches, points me to using the following workaround: (This was posted on both boost.org and ASPN) http://aspn.activestate.com/ASPN/Mail/Message/1387917 Now I get the basics, but I am still not quite sure about the whole boost structure, so heres the code I am dealing with. 4 files, so not too bad, and only in a small section. I've got the Basic's, I am just not sure how to conver this over: [code] template< class T > struct Holder { T value; }; typedef InheritMultiple < //MythicDebug --> list< int, std::string, Widget >, --> lambda< Holder< _ > >::type --> >::type myWidgetInfo; } // inheritance [/code] <<<<<<<<<<<<<<<<<<<<<<<<<<<<<SNIP>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

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Boost Variant and std::map recursion
by Caleb Epstein 29 Sep '04

29 Sep '04

I'm trying to use Boost.Variant to model a recursive data structure than can be either a scalar value, vector or map. My code works fine on GCC and VC7.1 but I just now installed Intel C++ 8.1 and am seeing this error: /opt/intel/include/c++/utility(48): error: incomplete type is not allowed _Ty2 second; // the second stored value ^ detected during instantiation of class "std::pair<_Ty1, _Ty2> [with _Ty1=const std::string, _Ty2=boost::recursive_variant_]" at line 111 of "bencode.hpp" compilation aborted for bdecode.cpp (code 2) I'm attaching the code, but the crux of the offense seems to be the recursive variant as the second part of the std::map template: /// The field_t is the basic building block; you can use it to /// represent a scalar value, list or dictionary typedef boost::make_recursive_variant< int_t, double, std::string, std::vector<boost::recursive_variant_>, std::map<std::string, boost::recursive_variant_> >::type field_t; Is icpc right to reject this? -- Caleb Epstein caleb.epstein(a)gmail.com

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Is boost::to_upper() still a part of Boost?
by Debajit Adhikary 29 Sep '04

29 Sep '04

Is boost::to_upper() still a part of Boost? I did a grep on the Boost includes today and did not find to_upper. Has it been renamed or deprecated? boost.org does list to_upper() in its online docs (boost.org Home > Documentation > Nightly CVS), but I can't find it in the online docs for the current release or the (offline) documentation that comes with Boost.

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Converting a Boost implementation of Lambda to VC8 so it compiles
by John Henry 29 Sep '04

29 Sep '04

The basics: New to boost. Converting a project from VC7 to VC8 that uses Lambda functionality. Other issue, (I didn't write this code... so still learning it). The problem: ----------- The original compiles in earlier compilers, but comes up with "Ambiguous" error in VC8. The original code doesn't deal with Issues with MSVC compiliers, this I found in my searches. The fix from the Searches, points me to using the following workaround: (This was posted on both boost.org and ASPN) http://aspn.activestate.com/ASPN/Mail/Message/1387917 Now I get the basics, but I am still not quite sure about the whole boost structure, so heres the code I am dealing with. 4 files, so not too bad, and only in a small section. I've got the Basic's, I am just not sure how to conver this over: [code] template< class T > struct Holder { T value; }; typedef InheritMultiple < //MythicDebug --> list< int, std::string, Widget >, --> lambda< Holder< _ > >::type --> >::type myWidgetInfo; } // inheritance [/code] The part --> list<... is where I am unsure of how to convert it over to the style in the above post: [code] ------ (snipped) ------ typedef ownership type; BOOST_MPL_AUX_LAMBDA_SUPPORT(1, ownership, (T)) [/code] The compile error comes in about the lambda< Holder<_> >::type [code] Test.cpp(47) : error C2872: 'lambda' : ambiguous symbol could be '\boost\boost\mpl\aux_\preprocessed\plain\full_lambda.hpp(27) : boost::mpl::lambda' or 'boost::mpl' [/code] Now I have tried changing it to: boost::mpl< Holder... boost::mpl::lambda< Holder.. All of those just give me other errors, even worse in number.. As far as I can tell I need to use the MSVC Compilier workaround to fix this... This is the last fix I need to start testing the code as I've managed to convert/fix the rest.. I am just not sure how to convert [ list< int... ] to [ BOOST_MPL_AUX_LAMBDA_SUPPORT(1, ownership, (T)) ] Thanks, John Henry

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Unrecoverable block scoping error
by Martin M 28 Sep '04

28 Sep '04

I use boost iterators and BGL in my project, which I normally compile with gcc. However, I wanted to try how portable it is, and tried to compile it with MSVC++ 6. After having sorted out a few minor quirks in my code, I get the error message "c:\program files\hack\microsoft visual studio\local\include\boost\type_traits\broken_compiler_spec.hpp(23) : fatal error C1506: unrecoverable block scoping error" Where could this stem from? I installed boost for VC++ from within Cygwin with the command line bjam "--prefix=c:\program files\hack\microsoft visual studio\local" "-sTOOLS=msvc" "--builddir=../boost_msvc_build" "-sMSVC_ROOT=c:\program files\hack\microsoft visual studio\vc98" install Any ideas? / martin

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[Linker error] undefined reference to `boost::gregorian::greg_month::as_short_string() const'
by Zhoujie Mao 28 Sep '04

28 Sep '04

Hi everyone, I just downloaded boost, built it on windows using cygwin. However, when I tried to run an example program. I got a the following link error [Linker error] undefined reference to `boost::gregorian::greg_month::as_short_string() const' I have added the corresponding lib and include directories to my make file. Is there anything I am missing? Any help will be greatly appreciated. George __________________________________ Do you Yahoo!? Y! Messenger - Communicate in real time. Download now. http://messenger.yahoo.com

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newbie: build support for HP-UX and aCC compiler
by arno.schaefer＠sqs.de 28 Sep '04

28 Sep '04

Hi all, I want to use the boost libraries an HP-UX 11.xx with Compiler aCC version "A.03.45". Because I found til now no hint, that the aCC compiler is directly supported by your tools list, I want to ask, if there are some experience with this compiler and the actual boost version and perhaps a reference to a description how to build the library with aCC. Thanks for your help Arno

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not working after upgrade
by Fred J. 27 Sep '04

27 Sep '04

Hello I am having a problem compiling a simple program with some boost lib. the problem happend after I apt-get update && apt-get upgrade my testing debian. my program #include "/usr/include/boost/filesystem/operations.hpp" #include "/usr/include/boost/filesystem/fstream.hpp" #include "/usr/include/boost/filesystem/path.hpp" ... on compileing I get g++ -g -Wall -c -o main.o main.cpp In file included from /usr/include/boost/filesystem/operations.hpp:18, from main.cpp:1: /usr/include/boost/filesystem/path.hpp:15:39: boost/filesystem/config.hpp: No such file or directory In file included from /usr/include/boost/filesystem/operations.hpp:18, from main.cpp:1: $locate config.hpp /usr/include/boost/config.hpp /usr/include/boost/config/select_compiler_config.hpp /usr/include/boost/config/select_platform_config.hpp /usr/include/boost/config/select_stdlib_config.hpp /usr/include/boost/lambda/detail/lambda_config.hpp /usr/include/boost/numeric/ublas/config.hpp /usr/include/boost/preprocessor/config/config.hpp /usr/include/boost/spirit/core/config.hpp /usr/include/boost/type_traits/config.hpp /usr/include/boost/variant/detail/config.hpp /var/boost/boost_1_31_0/boost/config.hpp /var/boost/boost_1_31_0/boost/config/select_compiler_config.hpp /var/boost/boost_1_31_0/boost/config/select_platform_config.hpp /var/boost/boost_1_31_0/boost/config/select_stdlib_config.hpp /var/boost/boost_1_31_0/boost/date_time/compiler_config.hpp /var/boost/boost_1_31_0/boost/date_time/locale_config.hpp /var/boost/boost_1_31_0/boost/date_time/posix_time/posix_time_config.hpp /var/boost/boost_1_31_0/boost/filesystem/config.hpp /var/boost/boost_1_31_0/boost/lambda/detail/lambda_config.hpp /var/boost/boost_1_31_0/boost/numeric/ublas/config.hpp /var/boost/boost_1_31_0/boost/preprocessor/config/config.hpp /var/boost/boost_1_31_0/boost/python/detail/config.hpp /var/boost/boost_1_31_0/boost/regex/config.hpp /var/boost/boost_1_31_0/boost/signals/detail/config.hpp /var/boost/boost_1_31_0/boost/spirit/core/config.hpp /var/boost/boost_1_31_0/boost/test/detail/unit_test_config.hpp /var/boost/boost_1_31_0/boost/thread/detail/config.hpp /var/boost/boost_1_31_0/boost/type_traits/config.hpp /var/boost/boost_1_31_0/boost/variant/detail/config.hpp thanks __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Bad interaction between boost::bind and Boost.Python?
by Nat Goodspeed 24 Sep '04

24 Sep '04

With the files newly unpacked from boost_1_31_0.zip, using MS VS .NET 2003 (aka 7.1), the following two-line source file: #include <boost/bind.hpp> #include <boost/python.hpp> compiled with the following command line: cl /c /I "c:/Dev/boost_1_31_0" /I "$PYTHONDIR/include" /EHsc test.cpp produces these errors: Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 13.10.3077 for 80x86 Copyright (C) Microsoft Corporation 1984-2002. All rights reserved. test.cpp c:/Dev\boost_1_31_0\boost\mpl\less.hpp(39) : error C2760: syntax error : expected ',' not ';' c:/Dev\boost_1_31_0\boost\mpl\less.hpp(51) : see reference to class template instantiation 'boost::mpl::less<T1,T2>' being compiled c:/Dev\boost_1_31_0\boost\mpl\less.hpp(39) : error C2144: syntax error : 'const bool' should be preceded by '}' c:/Dev\boost_1_31_0\boost\mpl\less.hpp(39) : error C2062: type 'const bool' unexpected c:/Dev\boost_1_31_0\boost\mpl\less.hpp(39) : error C2238: unexpected token(s) preceding ';' c:/Dev\boost_1_31_0\boost\mpl\less.hpp(42) : error C2065: 'value' : undeclared identifier Reversing the order of 'bind.hpp' and 'python.hpp' results in a clean compile. I'm trying to upgrade from Boost 1.30.2 to 1.31.0 today, but this bug is turning into quite a problem because of deep nesting of our own #include files. It hasn't yet become a show-stopper; but it's certainly taking me a great deal of effort to try to propagate every #include <boost/python*> -- and every file that includes it! - higher in its includer's #include list than any #include <boost/bind.hpp>. Please tell me there's a better way.

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using graph_property_iter_range::const_iterator
by Jeffrey Holle 24 Sep '04

24 Sep '04

I'm using boost 1_31_0 and gcc 3.4.2. I'm adding an iterator interface to my class that abstracts use of internal boost graph properties and have had success with one exception that involves const_iterator. Here is how this class looks: struct VertexData { typedef boost::graph_property_iter_range <DataGraphT,vertex_Datum_t>::iterator iterator; typedef boost::graph_property_iter_range <DataGraphT,vertex_Datum_t>::const_iterator const_iterator; typedef Vertex_Datum value_type; VertexData(DataGraphT& dataGraph); iterator begin(void) {return boost::get_property_iter_range(dataGraph_,vertex_Datum).first;} // const_iterator begin(void) const {return boost::get_property_iter_range(dataGraph_,vertex_Datum).first;} iterator end(void) {return boost::get_property_iter_range(dataGraph_,vertex_Datum).second;} // const_iterator end(void) const {return boost::get_property_iter_range(dataGraph_,vertex_Datum).second;} When I uncomment the const begin method, I get the following compilation error: dataGraph.h:30: error: conversion from `boost::detail::lvalue_pmap_iter<boost::counting_iterator<size_t, boost::use_default, boost::use_default>, boost::subgraph_global_property_map<DataGraphT*, boost::vec_adj_list_vertex_property_map<boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<boost::vertex_index_t, int, VertexProperty>, EdgeProperty, boost::no_property, boost::listS>, boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<boost::vertex_index_t, int, VertexProperty>, EdgeProperty, boost::no_property, boost::listS>*, Vertex_Datum, Vertex_Datum&, vertex_Datum_t> > >' to non-scalar type `boost::detail::lvalue_pmap_iter<boost::counting_iterator<size_t, boost::use_default, boost::use_default>, boost::subgraph_global_property_map<const DataGraphT*, boost::vec_adj_list_vertex_property_map<boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<boost::vertex_index_t, int, VertexProperty>, EdgeProperty, boost::no_property, boost::listS>, const boost::adjacency_list<boost::vecS, boost::vecS, boost::bidirectionalS, boost::property<boost::vertex_index_t, int, VertexProperty>, EdgeProperty, boost::no_property, boost::listS>*, Vertex_Datum, const Vertex_Datum&, vertex_Datum_t> > >' requested Could somebody point out the problem here?

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Using Boost Tuple Library instead of variadic macros
by Barak Simon 24 Sep '04

24 Sep '04

Hi, I am trying to use the Tuple library in order to provide a logging interface which can get a variable number of parameters and handle them in a type-safe manner. However, though constructing a tuple by make_tuple seems easy enough (from a logging's user point of view) implementation wise, I am not sure how to actually iterate on the make_tuple_mapper which is being provided to my logging method, as generically getting the length and using invoking "get" on it does not work due to compile-time reasons (and there are no iterators available). I am sure it must be possible to do it somehow, or else the ostream serialisation capabilities would not have been possible to implement, but I guess I am just not sophisticated enough to fully grasp the MP intricacies... My logging method currently looks like that: template<class TheTuple> inline void logTuple(TheTuple theTuple) { } which might not be the correct way about it, but I was not sure how to explicitly provide a tuple type that's created by make_tuple, let alone how to iterate on the values. Any help with this would be greatly appreciated. Thanks, Barak _________________ Barak Simon GED IT Core Platform Deutsche Bank 190 George St. Sydney, 2000 Phone +61 2 925 85070 Fax +61 2 925 95050 -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden.

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Does BGL support hypergraph?
by Peng Yu 24 Sep '04

24 Sep '04

Hi, I notices that there is some discussion about hypergraph in the mailing list archives 2 years ago. Is hypergraph implementation in BGL now? Best wishes, Peng

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RE: [Boost-users] Re: Bad interaction between boost::bindandBoost.Python?
by Nat Goodspeed 23 Sep '04

23 Sep '04

> -----Original Message----- > From: David Abrahams [mailto:dave@boost-consulting.com] > Sent: Thursday, September 23, 2004 8:24 AM > To: boost-users(a)lists.boost.org > Subject: [Boost-users] Re: Bad interaction between > boost::bindandBoost.Python? > > In principle your boost/python header has to be #included first [before boost/bind] > anyway, at least if you intend your code to run on POSIX. [Nat] ? I don't understand why that would be? Shouldn't each header #include everything to make it self-sufficient, rather than depending on the includer's prior #includes? > All I can > suggest is that you try the latest Boost CVS state, which doesn't have > this problem. A new release of Boost is imminent anyway. [Nat] That's fair, and thanks for testing it. But given the amount of time I've spent so far on this 1.31.0 upgrade, I'm going to lay low for a few days before announcing that I intend to upgrade to yet another version of Boost... ;-)

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Re: A boost.graph edge problem
by Lars Kunert 23 Sep '04

23 Sep '04

Have a look at your compare operator! It orders two pairs of values (A,B)(C,D) like this: (A<B) || (!(A<B) && (C<D)) this expession equals: (A<B) || (C<D) lets consider the test case: (1,2) (2,1) Your operator will return return true in whatever order this pair is compared... I think an operator like (A<B) || ((A==B) && (C<D)) will help > ... > typedef multiset<DataEdge,ltSubgraph> Edges; > ... > struct ltSubgraph : public > std::binary_function<DataEdge,DataEdge,bool> > { > bool operator() (const DataEdge& s1, const DataEdge& s2) const > { > return s1.m_source < s2.m_source || > (!(s1.m_source < s2.m_source) && s1.m_target < s2.m_target); > } > };

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A boost.graph edge problem
by Jeffrey Holle 23 Sep '04

23 Sep '04

I'm using boost 1.31.0 and gcc 3.4.2. While this problem is more of an application code problem, since I got no help on other lists, I trying this one with hopes of a response. I need to identify parallel edges from my graph, which is defined as: typedef subgraph<adjacency_list<vecS, vecS, bidirectionalS, property<vertex_index_t,int,VertexProperty>, EdgeProperty> > DataGraphT; typedef boost::graph_traits <DataGraphT>::edge_descriptor DataEdge; In the test case that I'm working on, I know I have parallel edges, actually 4 sets of 3. I'd like to use this code: DataGraph::handleParallelEdges(void) { typedef multiset<DataEdge,ltSubgraph> Edges; Edges edges; graph_traits<DataGraphT>::edge_iterator ei,ei_end; for (tie(ei,ei_end)=boost::edges(dataGraph_);ei!=ei_end;++ei) edges.insert(*ei); for (Edges::const_iterator iter = edges.begin(); iter != edges.end(); advance(iter,edges.count(*iter))) if (edges.count(*iter)>1) cout << "See duplicate" << endl; } However, when count never returns. The likely cause of this (I suspect) is the ltSubgraph functor. Its definition is: struct ltSubgraph : public std::binary_function<DataEdge,DataEdge,bool> { bool operator() (const DataEdge& s1, const DataEdge& s2) const { return s1.m_source < s2.m_source || (!(s1.m_source < s2.m_source) && s1.m_target < s2.m_target); } }; I say this because I can see that this functor is being continuously called in this infinite loop. Note that I use this functor in multiple other cases, but not with an associate container that allows duplicate keys. Is there a problem with this code?

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boost graph meant to contain classes and functions?
by Stephen torri 22 Sep '04

22 Sep '04

I see that the boost graph library is used to contain data but can it be used to contain a class which a visitor moves along the graph per a preset algorithm calling interfacing functions as it moves along? Here is an example. class Color_Base { virtual ~Color_Base(){} virtual std::string get_Name () = 0; }; class Red : Color_Base { virtual ~Red (){} virtual std::string get_Name () { return std::string("Red"); } }; class Yellow : Color_Base { virtual ~Yellow (){} virtual std::string get_Name () { return std::string("Yellow"); } }; class Blue : Color_Base { virtual ~Blue (){} virtual std::string get_Name () { return std::string("Blue"); } }; So we could have a graph like | Blue -- Red | / | / | / Yellow I have a visitor called Color_Visitor which has the following pseudo code: for each vertice in graph visit vertice call get_Name() print result Stephen -- Email: storri(a)torri.org

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