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[BGL] Querying the vertex/edge property map from an graph obj
by Wang Weiwei 13 Jul '06

13 Jul '06

hello, Is there a nonmember function, say vertex_property_map()/Edge_property_map() of the graph classes that can be used to query the vertex/edge property map from an graph obj? Thanks Max

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Re: [boost] [BGL] Help Needed
by Wang Weiwei 13 Jul '06

13 Jul '06

>I have yet to be able to use edge descriptors as keys >to external property maps. Try using internal >property maps. > > Cromwell D. Enage > Thanks for your help. Would you pls give me an example showing the usage of internal property map for the vertices and edges? Thanks again. max

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Evaluation of the PropertyTree library
by Stroemsdoerfer, Christian 12 Jul '06

12 Jul '06

I am currently using the PropertyTree library and I think it's both useful and easy to use. I haven't looked too much into the implementation, but I wanted to mention that although the library enables the use of wchar_t for properties and their values, it does not do so for file names (xml_read for instance takes a "std::string" for a filename). There are, however, people amongst us that work on operating systems with Unicode-enabled file systems. This should be supported by the library. Sincerely, Christian Strömsdörfer

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boost 1.33.1 and MSVC.NET 2005
by jmzorko＠mac.com 12 Jul '06

12 Jul '06

Hello, all ... I'm aware that Boost 1.33.1 and MSVC.NET 2005 have some issues working together, and though i've built a version of our app that uses the latest Boost stuff from CVS (which gets along much better with MSVC.NET 2005), I also need to build a version that uses 1.33.1. Since 1.33.1 gets along well with the MSVC.NET 2003 compiler, we built the boost binaries with that compiler. The problem i'm having right now -- which may be more of a VC problem than a Boost one -- is that i'm trying to use those binaries with MSVC.NET 2005. The 2005 linker is looking for 'liboost_filesystem- vc80-mt-sgd-1_33_1.lib', but since this Boost library was built with MSVC.NET 2003, it's called 'liboost_filesystem-vc80-mt- sgd-1_33_1.lib'. These names are never directly referenced in my project e.g. 2005's linker seems to somehow divine the name of the static Boost library it's to link to ... but I don't know how this is done, or how to change it to look for the 7.1 version. Any ideas? Regards, John Falling You - exploring the beauty of voice and sound http://www.fallingyou.com

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[assign] two assign_decay's?
by Shunsuke Sogame 12 Jul '06

12 Jul '06

Hi, 'assign_detail::assign_decay' is defined at both <list_of.hpp> and <ptr_list_of.hpp>? -- Shunsuke Sogame

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new library proposition : lisp interpreter library
by Guillaume Chereau 12 Jul '06

12 Jul '06

Hello, I want to suggest a new boost library, that could be used to parse and run lisp programs. I think of a way to create at compile time a language interpreter with list syntax, but with only the needed features. It could be used for people who need to run simple scripts from a C++ program, but who don't want to use python. Here is an naive example to illustrate what I mean (I hope it is clear enough by itself) using boost.lisp // we create the lisp interpreter with integer and math operation support lisp::lisp<lisp::with_int, lisp::with_math> mylisp; // we run the lisp program : (+ 10 20) lisp::result res = mylisp.run(lisp::word("+") >> 10 >> 20); std::cout << ret.as<int>() << std::endl; // same thing but from a string res = mylisp.run(lisp::parse("(+ 10 20)") ) It may then be possible to expose C++ functions and classes the same way it has been done for python by the boost.python library. What do you think of this idea ? Guillaume

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big integer implementation
by Brannon King 12 Jul '06

12 Jul '06

So does the big integer class use the CPU's carry flag? I'm picturing an implementation where you chop the dataset into int32_t. Then, for the add operation, each piece is composed of a.int32_t[x]+b.int32_t[x]+carry flag of the previous operation. Does that sound right? If so, I'm wondering how you're using the carry flag. Do you get that using assembly code or is there some standard C/C++ command to give you access to that? (Or would somebody mind taking a second and pointing me to the correct location for the code for that?) Using the above method, I think it would be quite useful to have these dataset types: u/int128_t, u/int192_t, u/int256_t Anyone else agree? ______________________________ Brannon King ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

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[shared_array] Conflict with Boost.TR1
by John Maddock 12 Jul '06

12 Jul '06

Not sure what we can do about this but: #include <boost/shared_array.hpp> doesn't compile when Boost.TR1 is added to the include path. We've been through this before with shared_ptr.hpp and a solution was found, any chance of some magic here as well? The alternative is for all the shared_ptr/shared_array code to include <boost/config/no_tr1/memory.hpp> rather than <memory> directly. In fact the latter option is probably easier to maintain in the long run: the problem is sporadic, hard to reproduce (because it depends upon which headers are included and in which order), and even harder to track down :-( Sorry, but there ain't no easy way.... Thanks, John Here are the compiler errors: gcc-C++-action ../../../bin/boost/libs/tr1/test/std_test_boost.test/gcc/debug/st d_test_boost.o In file included from /cygdrive/c/data/boost/develop/boost/boost/tr1/memory.hpp: 56, from /cygdrive/c/data/boost/develop/boost/boost/tr1/tr1/memory: 28, from /cygdrive/c/data/boost/develop/boost/boost/detail/shared_c ount.hpp:32, from /cygdrive/c/data/boost/develop/boost/boost/shared_array.hp p:26, from /cygdrive/c/data/boost/develop/boost/libs/tr1/test/test_bo ost.cpp:10: /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:423: error: field `pn' has incomplete type /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr()': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:144: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(Y*)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:149: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:151: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:151: error: (Each unde clared identifier is reported only once for each function it appears in.) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(Y*, D)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:160: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:162: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(Y*, D, A)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:167: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:169: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `b oost::shared_ptr<T>& boost::shared_ptr<T>::operator=(const boost::shared_ptr<T>& )': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:180: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::weak_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:187: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::shared_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:194: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::shared_ptr<Y>&, boost::detail::static_c ast_tag)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:199: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::shared_ptr<Y>&, boost::detail::const_ca st_tag)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:204: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::shared_ptr<Y>&, boost::detail::dynamic_ cast_tag)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:209: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:213: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(const boost::shared_ptr<Y>&, boost::detail::polymorp hic_cast_tag)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:218: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(std::auto_ptr<_Tp1>&)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:229: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:232: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In constructor `boost ::shared_ptr<T>::shared_ptr(Ap, typename boost::detail::sp_enable_if_auto_ptr<Ap , int>::type)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:239: error: class `boo st::shared_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:242: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `b oost::shared_ptr<T>& boost::shared_ptr<T>::operator=(const boost::shared_ptr<Y>& )': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:257: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `b ool boost::shared_ptr<T>::unique() const': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:385: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `l ong int boost::shared_ptr<T>::use_count() const': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:390: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `v oid boost::shared_ptr<T>::swap(boost::shared_ptr<T>&)': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:396: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `b ool boost::shared_ptr<T>::_internal_less(const boost::shared_ptr<Y>&) const': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:401: error: `pn' undec lared (first use this function) /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp: In member function `v oid* boost::shared_ptr<T>::_internal_get_deleter(const std::type_info&) const': /cygdrive/c/data/boost/develop/boost/boost/shared_ptr.hpp:406: error: `pn' undec lared (first use this function) In file included from /cygdrive/c/data/boost/develop/boost/boost/tr1/memory.hpp: 57, from /cygdrive/c/data/boost/develop/boost/boost/tr1/tr1/memory: 28, from /cygdrive/c/data/boost/develop/boost/boost/detail/shared_c ount.hpp:32, from /cygdrive/c/data/boost/develop/boost/boost/shared_array.hp p:26, from /cygdrive/c/data/boost/develop/boost/libs/tr1/test/test_bo ost.cpp:10: /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: At global scope: /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:168: error: field `pn' h as incomplete type /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In constructor `boost:: weak_ptr<T>::weak_ptr()': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:39: error: class `boost: :weak_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In constructor `boost:: weak_ptr<T>::weak_ptr(const boost::weak_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:64: error: class `boost: :weak_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In constructor `boost:: weak_ptr<T>::weak_ptr(const boost::shared_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:70: error: class `boost: :weak_ptr<T>' does not have any field named `pn' /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `boo st::weak_ptr<T>& boost::weak_ptr<T>::operator=(const boost::weak_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:80: error: `pn' undeclar ed (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `boo st::weak_ptr<T>& boost::weak_ptr<T>::operator=(const boost::shared_ptr<Y>&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:88: error: `pn' undeclar ed (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `lon g int boost::weak_ptr<T>::use_count() const': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:125: error: `pn' undecla red (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `boo l boost::weak_ptr<T>::expired() const': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:130: error: `pn' undecla red (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `voi d boost::weak_ptr<T>::swap(boost::weak_ptr<T>&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:141: error: `pn' undecla red (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `voi d boost::weak_ptr<T>::_internal_assign(T*, const boost::detail::shared_count&)': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:147: error: `pn' undecla red (first use this function) /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp: In member function `boo l boost::weak_ptr<T>::_internal_less(const boost::weak_ptr<Y>&) const': /cygdrive/c/data/boost/develop/boost/boost/weak_ptr.hpp:152: error: `pn' undecla red (first use this function) "g++" -c -DTEST_STD_HEADERS=1 -g -O0 -fno-inline -Wall -ftemplate-depth-25 5 -I"/cygdrive/c/data/boost/develop/boost/boost/tr1/tr1" -I"/cygdrive/c/data/boo st/develop/boost" -I "/cygdrive/c/data/boost/develop/boost" -o "../../../bin/bo ost/libs/tr1/test/std_test_boost.test/gcc/debug/std_test_boost.o" "/cygdrive/c/d ata/boost/develop/boost/libs/tr1/test/test_boost.cpp"

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[Boost-bugs] [ boost-Bugs-1520617 ] Memoryleak when using boost::thread and boost::test together
by SourceForge.net 12 Jul '06

12 Jul '06

Bugs item #1520617, was opened at 2006-07-11 19:34 Message generated for change (Tracker Item Submitted) made by Item Submitter You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1520617&group_… Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: threads Group: None Status: Open Resolution: None Priority: 5 Submitted By: SergeiPanov (sergeipanov) Assigned to: Mike Glassford (glassfordm) Summary: Memoryleak when using boost::thread and boost::test together Initial Comment: When I tried to use boost::thread with boost::test (Unit Test Framework) I've always got the followed message: Detected memory leaks! Dumping objects -> {227} normal block at 0x00364698, 24 bytes long. Data: <PS > 50 53 14 00 FF FF FF FF 00 00 00 00 00 00 00 00 {226} normal block at 0x00364428, 8 bytes long. Data: < F6 > 98 46 36 00 01 CD CD CD Object dump complete. It does not matter from Boost version (I tried the latest one as well). The error is reproduced with simple examples from boost::thread docs. Platform: Win32 Compiler: Microsoft Visual C++ version 7.1 STL : Dinkumware standard library version 313 Boost : 1.33.1 Could you help me? Thanks in advance! Sergei Panov ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=107586&aid=1520617&group_… ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Boost-bugs mailing list Boost-bugs(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/boost-bugs

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[BGL] Help Needed
by Wang Weiwei 12 Jul '06

12 Jul '06

Hello, I'm constructing an undirected graph using the following graph, but the last line failed to compile. I'm using two property maps to associate a char type and a std::string type of properties to the vertices and edges of the graph, respectively. std::map<elem_id_t, char> vmap; std::map<edge_id_t, std::string> emap; typedef boost::associative_property_map< std::map<elem_id_t, char> > vpmap_t; typedef boost::associative_property_map< std::map<edge_id_t, std::string> > epmap_t; vpmap_t vpmap(vmap); epmap_t epmap(emap); typedef boost::adjacency_list<boost::vecS, boost::vecS, boost::undirectedS, vpmap_t, epmap_t> graph_t; typedef boost::graph_traits<graph_t>::vertex_descriptor vertex_descriptor; typedef boost::graph_traits<graph_t>::edge_descriptor edge_descriptor; graph_t g; vertex_descriptor v[5]; v[0] = add_vertex(g); put(vpmap, v[0], '0'); //vpmap[v[0]] = '0'; // this line also does not work v[1] = add_vertex(g); put(vpmap, v[1], '1'); v[2] = add_vertex(g); put(vpmap, v[2], '2'); v[3] = add_vertex(g); put(vpmap, v[3], '3'); v[4] = add_vertex(g); put(vpmap, v[4], '4'); edge_descriptor e; bool inserted; boost::tie(e, inserted) = add_edge(v[0], v[1], g); // this line failed to be compiled put(epmap, e, std::string("01")); What's wrong? Any help will be appriciated. min2max

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