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64 bit platforms
by Phil Hystad 28 Nov '07

28 Nov '07

Are the boost libraries supported on any 64 bit platforms? In particular: Win64 and RedHat Linux 64. thanks, phil phystad(a)mac.com

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for_each, mem_fun, bind1st with boost::ptr_vector?
by Robert Dailey 27 Nov '07

27 Nov '07

Hi, I can't figure out how to use std::mem_fun() and std::bind1st() with std::for_each() to call into a member function for each element in a boost::ptr_vector object. Some sample code below: class Object { public: void Tick( float number ) {} }; boost::ptr_vector<Object> m_objects; using namespace std; for_each( m_objects.begin(), m_objects.end(), bind1st( mem_fun( &Object::Tick ), 5 ) ); Of course, this doesn't compile at all. Can anyone tell me what I'm doing wrong?

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boost with embedded compiler / in embedded area
by Bernhard Merkle 27 Nov '07

27 Nov '07

Hi, I have the following questions about using boost with embedded compilers / in the embedded area 1. what about embedded c++ compiler support in boost ? I saw on [1] some compilers but my list e.g. is - Metrowerks Codewarrior for PPC (v 8.x unfortunately) but the 9.x seems also to have problems - GreenHills C++ (seems to have the EDG parser, so no problem) - ARM C++ an they are not officially supported. Has anyone tried them or others ? experiences ? AFAIK, boost has some requirements to C++ compilers (especially templates) 2. what parts of boost are you using in your (embedded) area ? What parts would you avoid and what is recommendable ? (e.g. statechart, thread, the whole collection/algorithm things) Any performance/size issues ? TIA and kind regads, Berni [1] http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/summar… <http://engineering.meta-comm.com/boost-regression/CVS-HEAD/developer/summar…>

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conditional declaration of template class members
by Hicham Mouline 27 Nov '07

27 Nov '07

hi, Is it possible to define some member functions conditionally on integral template argument values? template <int n> class C { void f1(); void f2(); .... void f6(); // should be a member only if n==3 for e.g. }; I could specialize this template and then i would have to define f1..5() for both the general case and the special case(n==3). rds,

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Serialization using BOOST_CLASS_EXPORT_GUID without XML
by Oliver Kania 27 Nov '07

27 Nov '07

Hello ! when using BOOST_CLASS_EXPORT_GUID, is there an option to disable implicit generation of XML-Archive code. I have quite a lot of serialization going on and want to save myself some headaches connected to XML archives. regards, Oliver

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Problem with graphml
by abhishek.v＠tcs.com 27 Nov '07

27 Nov '07

Hi I making use of graphml.cpp and graphml.hpp but when trying to compile i m getting the linking error following are my error message :- g++.exe -D__DEBUG__ -c main.cpp -o main.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include" -I"C:/Dev-Cpp/graphml" -I"C:/SRLGrp/BoostLib/expat-2.0.1/lib" -I"C:/SRLGrp/BoostLib/boost_1_34_1" -I"C:/SRLGrp/BoostLib/expat-2.0.1" -pg -g3 g++.exe -D__DEBUG__ -c ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp -o ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o -I"C:/Dev-Cpp/lib/gcc/mingw32/3.4.2/include" -I"C:/Dev-Cpp/include/c++/3.4.2/backward" -I"C:/Dev-Cpp/include/c++/3.4.2/mingw32" -I"C:/Dev-Cpp/include/c++/3.4.2" -I"C:/Dev-Cpp/include" -I"C:/Dev-Cpp/graphml" -I"C:/BoostLib/expat-2.0.1/lib" -I"C:/BoostLib/boost_1_34_1" -I"C:/BoostLib/expat-2.0.1" -pg -g3 g++.exe -D__DEBUG__ main.o ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o -o "graphml.exe" -L"C:/Dev-Cpp/lib" -lgmon -pg -g3 ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x73): In function `ZN5boost22undirected_graph_errorD0Ev': C:/BoostLib/boost_1_34_1/boost/graph/graphviz.hpp: undefined reference to `XML_ParserCreateNS' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x91):C:/BoostLib/boost_1_34_1/boost/graph/graphviz.hpp: undefined reference to `XML_SetElementHandler' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0xa4):C:/BoostLib/boost_1_34_1/boost/graph/graphviz.hpp: undefined reference to `XML_SetCharacterDataHandler' ../../SRLGrp/BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0xb6):C:/BoostLib/boost_1_34_1/boost/graph/graphviz.hpp: undefined reference to `XML_SetUserData' ../../SRLGrp/BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x12b): In function `ZN5boost12read_graphmlERSiRNS_12mutate_graphE': C:/Dev-Cpp/graphml/../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:349: undefined reference to `XML_Parse' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x1af):C:/Dev-Cpp/graphml/../..BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:351: undefined reference to `XML_GetCurrentColumnNumber' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x1c0):C:/Dev-Cpp/graphml/../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:351: undefined reference to `XML_GetCurrentLineNumber' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x1d1):C:/Dev-Cpp/graphml/../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:351: undefined reference to `XML_GetErrorCode' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x1d9):C:/Dev-Cpp/graphml/../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:351: undefined reference to `XML_ErrorString' ../../SRLGrp/BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x259): In function `Z41__static_initialization_and_destruction_0ii': C:/Dev-Cpp/include/c++/3.4.2/iostream:77: undefined reference to `XML_ParserFree' ../../BoostLib/boost_1_34_1/libs/graph/src/graphml.o(.text$_ZN14graphml_reader3runERSi[graphml_reader::run(std::basic_istream<char, std::char_traits<char> >&)]+0x3c9): In function `GLOBAL__D__ZN5boost12read_graphmlERSiRNS_12mutate_graphE': C:/Dev-Cpp/graphml/../../BoostLib/boost_1_34_1/libs/graph/src/graphml.cpp:355: undefined reference to `XML_ParserFree' collect2: ld returned 1 exit status Thanks Abhishek =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

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Problem with graphml
by abhishek.v＠tcs.com 27 Nov '07

27 Nov '07

Hi Currently working on graphml reader so found a thread on http://article.gmane.org/gmane.comp.lib.boost.devel/146836 but when trying to access the attached file it is giving me error page stating "you are not authorized to view this page" Can i find the reader_test.cpp code on some other link so that i don't have to write the code again. Also i have downloaded graphml.cpp and graphml.hpp but when trying to compile the code it's giving me compilation error "C:/boost_1_34_1/libs/graph/src/graphml.cpp:22: error: expected `}' at end of input" in graphml.cpp file on the code "graphml_reader(mutate_graph& g):m_g(g), m_canonical_vertices(false) { }" What could be the reason for this.. Thanks Abhishek Vyas =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

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Regarding lock-free data structure implementation in boost libraries
by Rakesh Sinha 27 Nov '07

27 Nov '07

Hi - I was just curious about some kind of lock-free data structure implementation (CAS algorithms specifically for Linux/GCC platform ) present in the boost library. After searching through the archives - I came across a Read-Writable lock that was later recalled. Can someone help me with some current status / point me to an appropriate API regarding the same. Thanks for the help.

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Using boost::function and boost::bind
by A Arabadji 26 Nov '07

26 Nov '07

Hello people! I am a new boost user, and I am trying to implement a console for a game, which binds console commands to functions. These functions can come from different objects and this is why I decided to try using boost. I am using Visual Studio 8.0 SP1. I have something like this: //all functions are of generic structure //the return nothing and they take a vector of arguments typedef boost::function1< void, std::vector<std::string>& > funcHolder; //I also have a hash table, which holds function references and the //relative commands: std::map<std::string, funcHolder> commands; //Finally I have a function: void Console::addCommand(const String &command, funcHolder f) { std::map<String, funcHolder>::iterator t = commands.find(command); if(t == commands.end()) commands.insert( make_pair(command, f) ); else commands[command] = f; } All of these things are members of a Console class. So once I added these, I tried adding this line to the constructor: addCommand("clear", boost::bind(&Console::clear, this); //clear method void Console::clear( vector<std::string>& args ) { lines.clear(); } During compilation I get C4180 warnings. I have heard that those are due to VS8.0 SP1 compiler bugs, so I ignore them but then I get a following error: Project : error PRJ0002 : Error result 1 returned from 'C:\Program Files\Microsoft Visual Studio 8\VC\bin\cl.exe'. Compiler basically crashes. Any ideas what might be wrong? I thank everyone in advance, Artyom

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[Boost.Serialization] code works with gcc 4.1.2 but does not compile with gcc 3.3.3
by Christoph 26 Nov '07

26 Nov '07

I have written code to serialize a class hierarchy (with lots of shared_ptrs, strings, vectors etc.). This compiles (and works) on gcc 4.1.2 (OpenSuse 10.3). When trying to compile it on an older machine (gcc 3.3.3) I am getting lots of compiler errors which seem to boil down to the issue the the (de)serialization code fails to instantiate some abstract class in the hierarchy. I understand that instantiating these classes has to fail, what I do not understand is why the same code compiles with gcc 4.1.2... any ideas? What I did was: I have defined the following typedefs/macros typedef boost::archive::binary_iarchive InArchive; typedef boost::archive::binary_oarchive OutArchive; #define DECLARE_AS_SERIALIZABLE \ friend class boost::serialization::access; \ void serialize(InArchive & ar, const unsigned int file_version); \ void serialize(OutArchive & ar, const unsigned int file_version) and have augmented each and every class in the hierarchy with the line DECLARE_AS_SERIALIZABLE /* inside the class */ BOOST_SERIALIZATION_SHARED_PTR(Node); /* after the class decl. */ in the .cpp file I have BOOST_CLASS_EXPORT_GUID(mepl::Node, "Node") // for each class and the implementation of the serialize methods void Node::serialize(InArchive & ar, const unsigned int /* file_version */){ ar & BOOST_SERIALIZATION_NVP(m_sFileName) //& BOOST_SERIALIZATION_NVP(m_sSource) // & BOOST_SERIALIZATION_NVP(m_parentNode) & BOOST_SERIALIZATION_NVP(m_iStartLine) & BOOST_SERIALIZATION_NVP(m_iStartColumn) & BOOST_SERIALIZATION_NVP(m_iEndLine) & BOOST_SERIALIZATION_NVP(m_iEndColumn); } void ExprNode::serialize(InArchive & ar, const unsigned int /* file_version */){ ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(Node); bool bConst; ar & BOOST_SERIALIZATION_NVP(m_type) & BOOST_SERIALIZATION_NVP(bConst) & BOOST_SERIALIZATION_NVP(m_wert); m_bIsConst=bConst; } etc. As I've said, this works beautifully with gcc 4.1.2. Have I made a mistake here? Or is the older compiler not suppored in by Boost.Serialization? Small part of the compiler's output //melos/prog/boost/include/boost-1_34_1/boost/serialization/access.hpp: In static member function `static void boost::serialization::access::construct(Archive&, T*) [with Archive = boost::archive::binary_iarchive, T = mepl::Node]': //melos/prog/boost/include/boost-1_34_1/boost/serialization/serialization.hpp:105: instantiated from `void boost::serialization::load_construct_data(Archive&, T*, unsigned int) [with Archive = boost::archive::binary_iarchive, T = mepl::Node]' //melos/prog/boost/include/boost-1_34_1/boost/serialization/serialization.hpp:170: instantiated from `void boost::serialization::load_construct_data_adl(Archive&, T*, unsigned int) [with Archive = boost::archive::binary_iarchive, T = mepl::Node]' //melos/prog/boost/include/boost-1_34_1/boost/archive/detail/iserializer.hpp:308: instantiated from `void boost::archive::detail::pointer_iserializer<T, Archive>::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const [with T = mepl::Node, Archive = boost::archive::binary_iarchive]' /usr/include/g++/bits/locale_facets.h:214: instantiated from here //melos/prog/boost/include/boost-1_34_1/boost/serialization/access.hpp:123: error: cannot allocate an object of type `mepl::Node' //melos/prog/boost/include/boost-1_34_1/boost/serialization/access.hpp:123: error: because the following virtual functions are abstract: node.hpp:59: error: virtual void mepl::Node::streamout(std::ostream&) const Thank you, and best regards Christoph

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