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Newbie question... (sorry)
by Chris 30 Jun '04

30 Jun '04

Hi all, sorry for the newbie question... I have been trying to use the boost libraries with no luck I will briefly as possible list the steps I took, so that you can let me know where I went wrong. (please bear with me) 1) I downloaded the latest version and decompressed it so that i have a "C:\boost_1_31_0 directory". 2) I built Boost.Jam by starting the Visual Studio.Net command prompt, cd'ed to the "C:\boost_1_31_0\tools\build\jam_src" directory and invoked the build.bat .... The build was succesfull. 3) Copied the bjam.exe from the "C:\boost_1_31_0\tools\build\jam_src\bin.ntx86" directory to the Vc7/bin directory. 4)Added the VC71_ROOT environment variable to windows with the "C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7" path as the value. 5) Made sure that the PATH environment variable had the Vc7\bin path in it. 6) reset. 7) Started the Visual Studio.Net command prompt, cd'ed to the "C:\boost_1_31_0" directory and invoked bjam "-sTOOLS=vc7.1" install ... the whole process started.. building was succesfull (I believe) and I had a new directory c:\Boost with the \include and \lib sub dirs as mentioned in the "Getting Started" page. 8) Started visual studio.NET, went into the menu "Tools->Options->Projects->VC++ Directories" where I set "C:\boost_1_31_0" in the list of INCLUDE directories. 9) Copied a simple example from the boost website to test the libraries, compiled and VC doesn't find one of the header files.. 10) After many, many attempts I lost it and added the "C:\boost_1_31_0\lib" and "C:\boost_1_31_0\bin" to the other list of directories in the LIBRARY and EXECUTABLE list of directories in VC. After loosing it some more (after more attempts) I added even "C:\boost" in the same places as I had done in the previous steps (just in case). Now I get this fatal error "fatal error LNK1104: cannot open file 'libboost_filesystem-vc71-sgd-1_31.lib' " It doesn't seem to find the .lib but I have checked in the boost directories and that .lib is there!!! Any suggestions.... please... I also feel really bad, 'cause it seems I am the only idiot who hasn't been able to do this :(((( If someone can help me I will gladly return the favor (if I can) Thank you very very much in advance, Chris ------------------------ "Programming is Understanding" - Kristen Nygaard (I just wish I could understand more)

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[admin] Wiki Spam -- IP's are being banned
by Jeff Garland 28 Jun '04

28 Jun '04

All - I'm cross-posting this to boost-users and the developer list since it pertains to both. Over the last couple months there has been a rise in 'spam attacks' on the Wiki. Basically people are inserting links to commercial sites on wiki pages. These sites are totally unrelated to boost, c++, etc. I thank the many boosters that have spent their precious time removing the defacements. But the time has come to crack down. The following IP ranges have been banned from the Wiki. 61.55.32.* 61.55.33.* 69.63.103.* 210.82.76.* 210.82.106.* 219.233.195.* 218.5.65.* I will be monitoring and banning additional IP addresses as needed. If I have accidentally banned someone incorrectly, please let me know offlist: jeff at crystalclearsoftware.com Thanks, Jeff

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singleton_pool
by . . 28 Jun '04

28 Jun '04

hi all, i want to use singleton_pool, but on vc6.0 i get the following error (i have vc6.0 sp5): boost\pool\simple_segregated_storage.hpp(51) : error C2248: 'object_creator' : cannot access private struct declared in class 'boost::details::pool::singleton_default<struct boost::singleton_pool<class CMate rialProxy,4,struct boost::default_user_allocator_new_delete,class boost::details::pool::win32_mutex,32>::pool_type>' e:\documents\develop\include\boost-1.30.2\boost\pool\detail\singleton.hpp(63) : see declaration of 'object_creator' e:\documents\develop\include\boost-1.30.2\boost\pool\simple_segregated_storage.hpp(51) : while compiling class-template static data member 'struct boost::details::pool::singleton_default<struct boost::singleton_pool<class CMaterialProxy,4,st ruct boost::default_user_allocator_new_delete,class boost::details::pool::win32_mutex,32>::pool_type>::object_creator boost::details::pool::singleton_default<boost::singleton_pool<CMaterialProxy,4,boost::default_user_allocator_new_delete,boost::deta ils::pool::win32_mutex,32>::pool_type>::create_object' thanks in advance Fabio --------------------------------- Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages!

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ternary search trie
by Sybrand Badenhorst 28 Jun '04

28 Jun '04

Hi, Does the BOOST library (somewhere) contain a ternary search trie container type (as described by Robert Sedgewick in his "Algorithms - 3ed edition" or here: http://www.cs.princeton.edu/~rs/strings/) that can by used as a standalone container (such as for example STL's map) ? I don't find something like this listed on the Boost library page (http://www.boost.org/libs/libraries.htm) Any help will be greatly appreciated, Thanks Sybrand

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Spirit problem
by Michael Orlov 28 Jun '04

28 Jun '04

Hi, I am new to Spirit, and I am writing a reader for s-expressions, and so far has encountered the following problems, which seem to me to be contrarry to the documentation (Spirit 1.8.0 in Boost 1.31.0). Consider the following (small) C++ program: --------------------------------------------- #include <iostream> #include <iterator> #include <string> #include <boost/spirit/core.hpp> #include <boost/spirit/iterator/multi_pass.hpp> using namespace std; using namespace boost::spirit; struct Sexp : public boost::spirit::grammar<Sexp> { template <typename ScannerT> struct definition { typedef rule<ScannerT> rule; definition(const Sexp &self) { first = ( sexp = '(' >> *sexp >> ')' ); } subrule<0> sexp; rule first; const rule& start() const { return first; } }; }; int main() { typedef std::istream_iterator<char> iterator_t; typedef boost::spirit::multi_pass< iterator_t, boost::spirit::multi_pass_policies::input_iterator, boost::spirit::multi_pass_policies::first_owner > iterator_wrapper_t; Sexp sexper; iterator_t under_first(cin); iterator_t under_last; iterator_wrapper_t first(under_first); iterator_wrapper_t last(under_last); while (true) { parse_info<iterator_wrapper_t> info = parse(first, last, sexper); first.clear_queue(); if (info.hit) std::cout << "Hit: " << info.length << std::endl; else break; }; } --------------------------------------------- The purpose is to read s-expression from input, delivering them to the user the moment they are ready. Since whitespace skipper tries to consume as much space as it can, it is not suitable here, so I don't want to use it. Here comes the first problem: even when I don't pass space_p to parse(), the skipper is still present: --- ( ) ^D Hit: 2 --- --- (())( Hit: 4 ) ^D Hit: 2 --- Another problem is when I try to use istreambuf_iterator instead of istream_iterator (this is done in Spirit examples, too). When substituting istreambuf_iterator in the first typedef in main(), the program no longer compiles - neither with Intel Compiler 8.0.055, nor with GCC 3.3.2. Intel complains about /usr/local/include/boost/spirit/iterator/multi_pass.hpp(537): error: initial value of reference to non-const must be an lvalue return **input; and GCC's messages are too long to parse. :) Any help? Thanks, Michael

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Using Regex
by kinshuk srivastava 27 Jun '04

27 Jun '04

Hi I have installed the boost 1.31.0 and have been trying to compile the test examples that were there in the regular expression library.But the compiler isnt able to identify the header files.So I did include the path during my compilation by using the -I and the path name..However it is still inable to compile as it is unable to include or search the indented header files... This is my first time I have been using this kind of library.Can someone suggest a way so that I can start using the library.Is there a way in which I can directly compile nad run the files without having to go through the ordeal of specifying the path at compile time everytime I wanna use the file Any help will be highly appreciated. Sincerely -Kinshuk ________________________________________________________________________ Yahoo! India Matrimony: Find your partner online. http://yahoo.shaadi.com/india-matrimony/

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Automake/Autoconf rules for boost libs
by Sebastian Stein 27 Jun '04

27 Jun '04

Hi folks, is somewhere documented how to add automake/autoconf stuff for boost to a project? I have a set of small testcases and the need boost_unit_test_framework-gcc library to compile. At the moment I add the lib directly to linker options with project_test_LDADD = -lboost_unit_test_framework-gcc But this is not platform independent, because someone might have not gcc installed. So how can I do it in a better way? Sebastian

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[Fwd: [subgraph] unable to set graph properties using set_property() method]
by LOU Wenwu 27 Jun '04

27 Jun '04

Hi, I was trying to set graph properties, such as a meaningful name, to individual subgraphs, but the following test code failed. ====================================== typedef adjacency_list<v ecS, vecS, directedS, no_property, no_property no_property, property<graph_name_t, std::string> > graph_t; typedef subgraph<graph_t> subgraph_t; graph_t g; boost::set_property(g, graph_name, "a graph"); // **this worked, of course subgraph_t sg; boost::set_property(g, graph_name, "subgraphs"); // ** Error C2784 Error C2784: could not deduce template argument... ======================================= I used the BGL came with Boost 1.30.0 in .NET 2003. Any idea of how to make it work? Thanks, Daniel

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Newbie question: add_edge()
by Tim Rowe 27 Jun '04

27 Jun '04

Thanks for all the help so far. I'm not there yet, though! The documentation for add_edge() says that the first two parameters are of type boost::graph_traits<G>::vertex_descriptor. In the example in quick_tour.html it is called with integers (from an enum) as its first two parameters. Is that because: i. add_edge is overloaded to take integers as the first two parameters; ii. boost::graph_traits<G>::vertex_descriptor just happens to be an integer type in this case; iii. boost::graph_traits<G>::vertex_descriptor is /always/ an integer type; or iv. some other reason I haven't thought of. Thanks in advance.

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Problem
by przemyslaw.sliwa＠gazeta.pl 26 Jun '04

26 Jun '04

Dear All, I am a beginner with Boost and hae compiled the library on my suse 9.0 Athlon-m machine. I can compile the programs and link them (using Kdevelop) but if I invoke the programm I am getting a strange error which shows me that the shared library libboost_date_time-gcc-1_31.so.1. 31.0 cannot be loaded. This is somehow strange since I have linked against the static library using the argument -lboost_date_time-gcc. The boost install process compile a big rane of libraries and I am ot familar ith them. Can you help me with this issue??? Thank you very much for any kind of help, Przemyslaw

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