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[mpl] Discrepancy between documentation and code?
by James Knight 03 Oct '09

03 Oct '09

In looking at the documentation for the intrinsic metafunction mpl::at, it seems to suggest that a three argument version that returns a default type when a key is not found exists for associative sequences. I don't see this implemented anywhere in the code, and the simple example below doesn't compile. Am I missing something or is this an error in the documentation? Thanks, Nate #include <boost/mpl/map.hpp> #include <boost/mpl/at.hpp> #include <boost/mpl/pair.hpp> #include <boost/mpl/assert.hpp> #include <boost/mpl/int.hpp> #include <boost/type_traits/is_same.hpp> using namespace boost::mpl; int main() { typedef map< pair<int_<2>,int_<3> > > map_t; typedef at<map_t, int_<1>, int_<0> >::type missing; BOOST_MPL_ASSERT(( boost::is_same< missing, int_<0> > )); } With gcc 4.0.1 and Boost 1.37 on OS X I get test.cpp: In function 'int main()': test.cpp:12: error: wrong number of template arguments (3, should be 2) ../BoostInstall/boost_1_37_0/boost/mpl/at_fwd.hpp:20: error: provided for 'template<class Sequence, class N> struct boost::mpl::at' ...

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problems with program_opsitons::parse_environment can't figure out how to do what I want.
by Caleb Cushing 02 Oct '09

02 Oct '09

variables_map vm_env; store(parse_environment(desc, "HOME"), vm_env); notify(vm_env); if(vm_env.count("HOME")) { path rcfile = ".koramarc"; path home; home = vm_env["HOME"].as<path>(); path tmp = home / rcfile; cout << "check" << endl; // just a retarted test to see if we're actually reaching the end of this... } -- Caleb Cushing http://xenoterracide.blogspot.com

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Can't compile some boost code on Solaris
by Roger House 02 Oct '09

02 Oct '09

I'm attempting to build a quite large app on Solaris (which I know next to nothing about), and I'm getting compilation errors in a couple of boost files, seemingly related to stlport. The error message "exception is not a member of stlp_std" is issued for line 29 of archive_exception.hpp: class archive_exception : public virtual std::exception The same message (plus others which I think are spurious) is issued for line 55 of throw_exception.hpp: inline void throw_exception_assert_compatibility( std::exception const & ) { } All this code compiles okay with gcc on Linux and with cl on Windows, so I think it is specifically a Sun issue. A Google search led to some discussions on the boost site, but I could not determine from them what the fix is. The Sun compiler I'm using is version 5.9.0, and the boost version is 1.39.0. Any help on this will be greatly appreciated. Roger House Software Developer

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How to use the shared region in append mode
by manish4gupta 02 Oct '09

02 Oct '09

First of all i would like to thank for previous answers. Now i am able to use the shared region to create a map, insert value into shared map and use the shared map. Now moving one step ahead. I am planning to use the shared region in append mode. For instance 1. create shared region if it is not used before // how to check this ? managed_shared_memory segment(create_only,MySharedMemory, 999999999); 2. create map in the region // done 3. open the map and use the map for retrieving and inserting values //done How i can that the given region already allocated to map so that i can insert the value in it otherwise i can create the that region and create tha map and insert the value in the map. Thanks in advance. -- View this message in context: http://www.nabble.com/How-to-use-the-shared-region-in-append-mode-tp2567740… Sent from the Boost - Users mailing list archive at Nabble.com.

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[function/bind] function object type introspection
by Gennadiy Rozental 02 Oct '09

02 Oct '09

Hi, I've got couple questions. Might be someone can point me in right direction. Let's say I've got this class ConcreteFunctor which should handle all kinds of functions. I want to store the function as boost::function object, thus the class has template parameter - FunctionType: template<typename FuncType> ConcreteFunctor : public AbstractFunctor { ConcreteFunctor( FuncType f ) ... {} virtual invoke( std::vector<Object*> const& args ) { // here I can use FuncType::arity and FuncType's argument types // to properly convert arguments to desired types and invoke m_f } FuncType m_f; } Now I need to implement object maker template<typename F> boost::shared_ptr<AnstractFunctor> make_functor( F f ) { typedef boost::function<???> TypeName; return boost::shared_ptr<AbstrctFunctor>( new ConcreteFunctor<FuncType>( f ) ); } I was able to work fine with free functions by just removing pointer from F. Now to the questions: 1. How do I deduce boost::function type from pointer to member functions: Essentially if F is R (A::*)(T1,T2) I need to get boost::function<T (A*,T1,T2)> 2. This is more difficult: if f is bound object, how to I intrspect it's type: Essentially in use case like this: int foo( std::string, int ) {...} make_functor( boost::bind( &foo, "abc" ) ) I want to get FuncType as boost::function<int (int)> Regards, Gennadiy

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[asio] async connect vs sync connect
by Mathieu Peyréga 02 Oct '09

02 Oct '09

Hello, I have a TCP client program using boost 1.40 asio framework and a question. I have an external LAN hosted TCP server ready to accept connexions (functionnal and tested with other means) On my client side, when using the async connect function, it sometimes take up to 2-3 seconds before the connexion handler is called. If I use the synchronous connect function, it is almost immediate. Is there a way to speed up the connexion time, while using the async method ? Regards, Mathieu

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[asio] deadline_timer makes wrong delay when using date command
by Bjarne Laursen 02 Oct '09

02 Oct '09

I have used a deadline_timer to generate a polling every 1 second. Unfortunely when I use the linux date command the timing is curupted. (If I set the clock back 1 min. I will be missing 60 pollings). What can I do about that? -Bjarne

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[BoostCon 2010] Call for Participation
by Hartmut Kaiser 02 Oct '09

02 Oct '09

Please distribute! -------------------------------- 4th Annual Boost Conference 2010 -------------------------------- Aspen CO, USA, May 4-10, 2010, www.boostcon.com Call for participation ---------------------- We invite you to submit session proposals to the 4th Annual Boost Conference: BoostCon 2010 (Aspen CO, USA, May 10-14, 2010). Traditionally the main face-to-face event for all things Boost (www.boost.org) BoostCon 2010 will present leading speakers from the whole C++ community. From using the Boost libraries to writing and maintaining them, from evangelizing to deploying Boost within your organization, from infrastructure and process to vision and mission, and the new C++ Standard, BoostCon brings together the sessions, the colleagues, and the inspiration to support your work with C++ and Boost in particular for the next year. To reflect the breadth of the Boost community, the conference includes sessions aimed at two constituencies: Boost end-users and hard-core Boost library and tool developers. The program fosters interaction and engagement within and across those two groups, with an emphasis on hands-on, participatory sessions. Session topics -------------- Topics of interest include, but are not restricted to, the following: * General tutorial sessions introducing one or more Boost libraries * In-depth sessions on using specific Boost libraries * Case studies on using Boost * Experts panels * Advanced sessions on implementation techniques used within Boost libraries * C++0x and how it will change life for users and library writers * Development workshops to extend or enhance existing Boost libraries * Workshops on design process * Infrastructure workshops such as Build tools, Website, Testing * Concepts and Generic Programming * Hardware and infrastructure presentations focused on how libraries can make better use of the technology * Other topics likely to be of great interest to Boost users and developers Interactive and collaborative sessions are encouraged, as this is the nature of both the on-line Boost community and the style of learning and participation that has proven most successful at such events. Sessions can be tutorial based, with an emphasis on interaction and participant involvement, or workshop based, whether hands-on programming or paper-based, discussion-driven collaborative work. Session formats --------------- Presentations Presentations focus on a practitioner's ideas and experience with anything relevant to Boost and Boost users. Panels Panels feature three or four people presenting their ideas and experiences relating to Boost's relevant, controversial, emerging, or unresolved issues. Panels may be conducted in several ways, such as comparative, analytic, or historic. Tutorials Tutorials are sessions at which instructors teach conference participants specific Boost-relevant skills. Workshops Workshops provide an active arena for advancements in Boost- relevant topics. Workshops provide the opportunity for experienced practitioners to develop new ideas about a topic of common interest and experience. Author's Corner Presentations These were introduced at BoostCon 2008, and were a great success. They are short (30 minute) sessions, focusing on tips on usage and design. In addition, we're looking to uncover the hidden design gems in Boost libraries. Tool Vendors Presentations We actively encourage tool vendors and ISP's to submit proposals for a special Tool Vendors Session Track aimed at products related to Boost and C++ (compilers, libraries, tools, etc.). Other formats may also be of interest. Don't hold back a proposal just because it doesn't fit into a pigeonhole. Submitting a proposal --------------------- Standard Sessions are 90 minutes. You may submit a proposal for fractions or multiples of 90-minutes. Fractional proposals will be grouped into 90 minute sessions covering related topics. Longer sessions, such as tutorials and classes, will be assigned 90 minute, three hour (i.e. half day), or six hour (i.e. full day) time slots. Please include: * The working title. * Type of session: presentation, panel, tutorial, workshop, authors corner, vendor track, other. * A paragraph or two describing the topic covered, suitable for the conference web site. * Proposed length: 10-20 minute short talks, 45 minutes, 90 minutes, half day, full day. * Alternate lengths, if you are willing to make adjustments: 10-20 minute short-talks, 45 minutes, 90 minutes, half-day, full day. * Audience: users, developers, both. * Level: basic, intermediate, advanced. * A biography, suitable for the conference web site. * Your contact information (will not be made public). Submission details ------------------ All submissions have to be done through the EasyChair conference management system: http://www.easychair.org/conferences/?conf=boostcon10. If you have not already registered at EasyChair, you will need to do so in order to submit your proposal. All submissions will go through a peer review process. Authors are invited (but are not required) to submit PDF versions of full papers of up to 10 pages in ACM conference proceedings format (see http://www.acm.org/sigs/publications/proceedings-templates) The full papers are not required unless you want them published in the proceedings. All accepted proposals will be made available in the Association for Computing Machinery (ACM) Digital Library (approval pending). Best papers, after further reviews, will be considered to be book chapters or journal articles in a renowned journal. The session materials go on the BoostCon website and will be available to attendees. For general information on the BoostCon 2010 paper submission or the scope of technical papers solicited, please refer to the conference website at www.boostcon.com. For any other questions about the submission process or paper format, please contact the Program Committee at boostcon10(a)easychair.com. If you have any technical problems with EasyChair, please contact EasyChair for help. Note: Presenters must agree to grant a non-exclusive perpetual license to publish submitted materials, either electronically or in print, in any media related to BoostCon. Important dates --------------- Proposal submissions due: Dec 10th, 2009. Proposals decisions sent (tentative program available): Jan 15th, 2010. Fully scheduled program available: Feb 5th, 2010. Session materials due: Apr 15th, 2010. Hartmut Kaiser, email: hartmut.kaiser(a)gmail.com (Program Committee Chair) David Abrahams, email: dave(a)boostpro.com (Conference Chair) On behalf of the conference organizers

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[xpressive] Calling a function with captured text as a parameter from a rule action
by Ami Ganguli 01 Oct '09

01 Oct '09

Hi all, I've been trying to wrap my head around xpressive. I've got a rule that captures some text, calls a function as part of the action. The function call works, but as soon as I try to pass my captured text as a parameter to the function, I run into a rather long and incomprehensible compilation error. Are there working examples somewhere that do this? (There are examples on calling functions and examples on using captured text in the docs, but nothing that does both) Here's the important bits of my code: My function object: struct append_element_impl { typedef void result_type; void operator()(std::string& text) const { std::cout << "appending " << text; } }; function<append_element_impl>::type const append_element = {{}}; The part of the parser that calls the function: h1 = "=" >> +blank >> * (s1= ~_ln) >> eol [append_element(as<std::string>(s1))]; I've tried various variations on this (the "as<std::string>" is a recent addition, and doesn't seem to make much difference). If I get rid of the s1 parameter in both the function and the call, then everything works as expected. The last part of the error message (the part that I sort of understand) is: /usr/local/include/boost/proto/context/default.hpp:357: error: no match for call to ‘(const append_element_impl(std::basic_string<char, std::char_traits<char>, std::allocator<char> >)’ /home/ganguli/acms/plug-ins/wikitext/wikitext.C:27: note: candidates are: void append_element_impl::operator((std::string&) const /usr/local/include/boost/proto/context/default.hpp:357: error: return-statement with a value, in function returning 'void' I'd really appreciate any pointers on this, or just some examples on how to do something similar. Cheers, Ami.

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Documentation correction
by Joseph Garvin 01 Oct '09

01 Oct '09

http://www.boost.org/doc/libs/1_40_0/doc/html/boost/interprocess/open_copy_… Reads: "Tag to indicate that the resource must be only opened for reading." I assume it should read: "Tag to indicate that the resource is copy on write."

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Re: [Boost-users] Problem detecting python
by Christian O'Reilly 01 Oct '09

01 Oct '09

I seem to have a problem similar to the one first spoke about in this thread, however I have it with the version 1.4.0.I try co compile boost_python library with MinGW under XP. Here is the command I use : E:\PySide_dev\boost_1_40_0>bjam toolset=gcc --with-python --debug-configuration stage And here is a part of the output I get : notice: [python-cfg] Registry indicates Python 2.5 installed at "E:\Program File s\pythonxy\python\" notice: [python-cfg] Checking interpreter command "python"... notice: [python-cfg] running command 'DIR /-C /A:S "E:\Program Files\pythonxy\py thon\python.exe" 2>&1' notice: [python-cfg] running command '"python" -c "from sys import *; print 'ver sion=%d.%d\nplatform=%s\nprefix=%s\nexec_prefix=%s\nexecutable=%s' % (version_in fo[0],version_info[1],platform,prefix,exec_prefix,executable)" 2>&1' notice: [python-cfg] ...does not invoke a working interpreter notice: [python-cfg] Checking interpreter command "E:\Program Files\pythonxy\pyt hon\python"... notice: [python-cfg] running command 'DIR /-C /A:S "E:\Program Files\pythonxy\py thon\python.exe" 2>&1' notice: [python-cfg] running command '"E:\Program Files\pythonxy\python\python" -c "from sys import *; print 'version=%d.%d\nplatform=%s\nprefix=%s\nexec_prefix =%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_pref ix,executable)" 2>&1' notice: [python-cfg] ...does not invoke a working interpreter notice: [python-cfg] No working Python interpreter found. notice: [python-cfg] running command 'DIR /-C /A:S "E:\Program Files\pythonxy\py thon\python.exe" 2>&1' notice: [python-cfg] falling back to "python" notice: [python-cfg] Details of this Python configuration: notice: [python-cfg] interpreter command: "python" notice: [python-cfg] include path: "Include" notice: [python-cfg] library path: "\libs" notice: [python-cfg] DLL search path: "<empty>" WARNING: No python installation configured and autoconfiguration failed. See http://www.boost.org/libs/python/doc/building.html for configuration instructions or pass --without-python to suppress this message and silently skip all Boost.Python targets Notice that the informations obtained from the command '"E:\Program Files\pythonxy\python\python" -c "from sys import *; print 'version=%d.%d\nplatform=%s\nprefix=%s\nexec_prefix =%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_pref ix,executable)" 2>&1' are correct. Any idea how to solve this? -- View this message in context: http://www.nabble.com/Problem-detecting-python-tp25153064p25670428.html Sent from the Boost - Users mailing list archive at Nabble.com.

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[spirit] Cannot find assig_a in spirit 2.1
by Christian Henning 01 Oct '09

01 Oct '09

Hi there, I really liked the assign_a actor in classic spirit. Is there something like that in spirit 2.1, aka, spirit::qi? Thanks, Christian

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[interprocess] problem in HPUX
by Rui Pedro Fernandes 01 Oct '09

01 Oct '09

Hi, I've been trying boost.interprocess v. 1.40 in a HP-UX 11.23 IA64 machine. Firstly I tried a 64 bit compilation of the interprocess test with aCC compiler (v. A.06.15). It failed with error: "No atomic operations implemented for this platform, sorry!". Then I used gcc 4.1.2 and compilation did succeed. Many tests got passed, however some failed with "boost::interprocess_exception::library_error". Here is an output example of both cases: >>>>>> gcc.compile.c++ ../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.o "g++" -ftemplate-depth-128 -O0 -fno-inline -Wall -g -pthread -fPIC -mlp64 -DBOOST_ALL_NO_LIB=1 -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_DLL=1 -I"../../.." -c -o "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.o" "named_construct_test.cpp" gcc.link ../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test "g++" -o "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test" "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.o" "../../../bin.v2/libs/thread/build/gcc-4.1.2/debug/threading-multi/libboost_thread-gcc41-mt-d-1_40.so.1.40.0" -lrt -g -fPIC -pthread -mlp64 testing.capture-output ../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.run LD_LIBRARY_PATH="/usr/local/bin:/usr/local/lib:/usr/local/lib32:/usr/local/lib64:/usr/users/genesys/src/boost_1_40_0/bin.v2/libs/thread/build/gcc-4.1.2/debug/threading-multi:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test" > "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.output" 2>&1 status=$? echo >> "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.output" echo EXIT STATUS: $status >> "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.output" if test $status -eq 0 ; then cp "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.output" "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.run" fi verbose=0 if test $status -ne 0 ; then verbose=1 fi if test $verbose -eq 1 ; then echo ====== BEGIN OUTPUT ====== cat "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.output" echo ====== END OUTPUT ====== fi exit $status ...on 100th target... **passed** ../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.test echo passed > "../../../bin.v2/libs/interprocess/test/named_construct_test.test/gcc-4.1.2/debug/threading-multi/named_construct_test.test" gcc.compile.c++ ../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.o "g++" -ftemplate-depth-128 -O0 -fno-inline -Wall -g -pthread -fPIC -mlp64 -DBOOST_ALL_NO_LIB=1 -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_DLL=1 -I"../../.." -c -o "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.o" "named_mutex_test.cpp" gcc.link ../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test "g++" -o "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test" "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.o" "../../../bin.v2/libs/thread/build/gcc-4.1.2/debug/threading-multi/libboost_thread-gcc41-mt-d-1_40.so.1.40.0" -lrt -g -fPIC -pthread -mlp64 testing.capture-output ../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.run LD_LIBRARY_PATH="/usr/local/bin:/usr/local/lib:/usr/local/lib32:/usr/local/lib64:/usr/users/genesys/src/boost_1_40_0/bin.v2/libs/thread/build/gcc-4.1.2/debug/threading-multi:$LD_LIBRARY_PATH" export LD_LIBRARY_PATH "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test" > "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.output" 2>&1 status=$? echo >> "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.output" echo EXIT STATUS: $status >> "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.output" if test $status -eq 0 ; then cp "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.output" "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.run" fi verbose=0 if test $status -ne 0 ; then verbose=1 fi if test $verbose -eq 1 ; then echo ====== BEGIN OUTPUT ====== cat "../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.output" echo ====== END OUTPUT ====== fi exit $status ====== BEGIN OUTPUT ====== create_then_open_then_open_or_create<33named_mutex_creation_test_wrapper> Failed: false file: named_creation_template.hpp line : 34 boost::interprocess_exception::library_error EXIT STATUS: 1 ====== END OUTPUT ====== ...failed testing.capture-output ../../../bin.v2/libs/interprocess/test/named_mutex_test.test/gcc-4.1.2/debug/threading-multi/named_mutex_test.run... <<<<<< Could anyone explain this error? Is it possible to overcome the problem? Thanks in advance. Rui

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Re: [Boost-users] Reference count in shared_ptr
by Daniele Barzotti 01 Oct '09

01 Oct '09

On Thu 01/10/09 17:47 , Roman Perepelitsa wrote: > > In this case, is 'delete' called twice for Impl2? > > Yes. When you passed a pointer to shared_ptr, you don't own this > pointer anymore, so you shouldn't delete it manually. > Roman Perepelitsa. > Thanks Roman! Now I tested it on my skin! :-) Regards, Daniele.

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Reference count in shared_ptr
by Daniele Barzotti 01 Oct '09

01 Oct '09

Hi, I've a doubt about shared_ptr... Suppose to have something like this: template class Interface {..pure virtual..} template class Impl1 : public Interface {....} template class Impl2 : public Interface {....} class A { public: Interface* GetObjPtr() { return &obj; } private: Impl2 obj; }; class B { ~B() { delete a_ptr; } B() { a_ptr = new A; Int_ptr.reset( a_ptr->GetObjPtr ); } private: A* a_ptr; shared_ptr< Interface > Int_ptr; }; Where B creates and use A on its internal. In this case, is 'delete' called twice for Impl2? (When A is destroyed and when B, and its shared_ptr, is destroyed). Thanks, Daniele.

2 1

[asio] no error or exception sent ?
by Mathieu Peyréga 01 Oct '09

01 Oct '09

Hello, i'm using a tcp socket from asio 1.40 framework and i have the following behaviour : i establish a connection to a server and start receiving data i now want my software to be robust to server deconnexion/reset so i simulate it by shuting down the server equipment (which is an external hardware equipement) i would expect such operation to interrupt any pending async_read_some operation with an error code, but it doesn't is there some way to have the expected behaviour ? regards, Mathieu

2 3

spurious string
by Surya Kiran Gullapalli 01 Oct '09

01 Oct '09

Hello all, I'm reading an html file and parsing data from it. I've encountered a spurious string (researcherâ€™s). Notepad++ shows that string as *researcher's *. I'm reading the file using std::fstream class. Is there any way i can read the string and get the spurious characters replaced using boost string/regex algorithms ? Thanks, Surya

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[boost.datetime] Formating dates as strings
by Sean Farrow 01 Oct '09

01 Oct '09

Hi: What is the best way to format a date in a specific way. For example I have a client who wants there dates formatted as 01/10/2009, and another who wants Thursday 01 October. These need to be output as std::wstrings. Any help appreciated. Sean.

2 1

How to install boost 1_39 on itanium server
by manish4gupta 01 Oct '09

01 Oct '09

I am installing the boost on itanium (64 bit red hat) machine. I am following the three steps. ./bootstrap.sh --prefix=/usr/local ./bjam ./bjam install After installation, libboost files are all located in /usr/lib. But i am trying to run one simple code. #include <boost/interprocess/managed_shared_memory.hpp> #include <boost/interprocess/allocators/allocator.hpp> #include <boost/interprocess/containers/map.hpp> #include <boost/interprocess/containers/string.hpp> #include <iostream> using namespace boost::interprocess; //Typedefs of allocators and containers typedef managed_shared_memory::segment_manager segment_manager_t; typedef allocator<void, segment_manager_t> void_allocator; typedef allocator<char, segment_manager_t> char_allocator; typedef basic_string<char, std::char_traits<char>, char_allocator> char_string; //Definition of the map holding a string as key and complex_data as mapped type typedef std:air<const char_string, int> map_value_type; typedef allocator<map_value_type, segment_manager_t> map_value_type_allocator; typedef map< char_string, int, std::less<char_string>, map_value_type_allocator> complex_map_type; int main () { shared_memory_object::remove("MySharedMemory"); //Create shared memory managed_shared_memory segment(create_only,"MySharedMemory", 65536); //An allocator convertible to any allocator<T, segment_manager_t> type void_allocator alloc_inst (segment.get_segment_manager()); //Construct the shared memory map and fill it complex_map_type *mymap = segment.construct<complex_map_type>("MyMap")(std:: less<char_string>(), alloc_inst); char_string cs("test", alloc_inst); for(int i = 0; i < 100; ++i) { mymap->insert(std:air<char_string, int>(cs , i)); } return 0; } with command g++ program_name.cpp -lrt It is showing error "No such file and directory" for every header file. This code is working fine on 32 bit (installed by other person).May i know what is the pblm? -- View this message in context: http://www.nabble.com/How-to-install-boost-1_39-on-itanium-server-tp2568059… Sent from the Boost - Users mailing list archive at Nabble.com.

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asio - failed to compile "chat_client.cpp" example on Cygwin
by Steve Ong 30 Sep '09

30 Sep '09

Hi, I downloaded the "chat_client.cpp" from the boost website (http://www.boost.org/doc/libs/1_37_0/doc/html/boost_asio/examples.html) and try to compile it on Cygwin (see my compile statement below..), but it failed. It's worked on Linux (without the -D__USE_W32_SOCKETS -D_WIN32_WINNT=0x0501) , however. Thanks in advance for your help. Compile statement: g++ -o chat_client chat_client.cpp -D__USE_W32_SOCKETS -D_WIN32_WINNT=0x0501 -Wall -I/opt/boost/include -L/opt/boost/lib -lboost_thread -lboost_system -lboost_t hread Output message: /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld: warning: au to-importing has been activated without --enable-auto-import specified on the co mmand line. This should work unless it involves constant data structures referencing symbols from auto-imported DLLs./cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:ch at_client.cpp:(.text$_ZN5boost4asio6detail12winsock_initILi2ELi0EE7do_initC1Ev[b oost::asio::detail::winsock_init<2, 0>::do_init::do_init()]+0x1f): undefined ref erence to `_WSAStartup@8' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops5closeEjRNS_6system10error_codeE[boost::asio::detai l::socket_ops::close(unsigned int, boost::system::error_code&)]+0x18): undefined reference to `_closesocket@4' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops13error_wrapperIiEET_S4_RNS_6system10error_codeE[in t boost::asio::detail::socket_ops::error_wrapper<int>(int, boost::system::error_ code&)]+0x13): undefined reference to `_WSAGetLastError@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops11clear_errorERNS_6system10error_codeE[boost::asio: :detail::socket_ops::clear_error(boost::system::error_code&)]+0xf): undefined re ference to `_WSASetLastError@4' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops6socketEiiiRNS_6system10error_codeE[boost::asio::de tail::socket_ops::socket(int, int, int, boost::system::error_code&)]+0x3e): unde fined reference to `_WSASocketA@24' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops6socketEiiiRNS_6system10error_codeE[boost::asio::de tail::socket_ops::socket(int, int, int, boost::system::error_code&)]+0x9a): unde fined reference to `_setsockopt@20' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops13error_wrapperIjEET_S4_RNS_6system10error_codeE[un signed int boost::asio::detail::socket_ops::error_wrapper<unsigned int>(unsigned int, boost::system::error_code&)]+0x13): undefined reference to `_WSAGetLastErr or@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops12call_connectIiEEiMNS2_6msghdrET_jPK8sockaddrj[int boost::asio::detail::socket_ops::call_connect<int>(int boost::asio::detail::soc ket_ops::msghdr::*, unsigned int, sockaddr const*, unsigned int)]+0x1b): undefin ed reference to `_connect@12' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops5ioctlEjlPmRNS_6system10error_codeE[boost::asio::de tail::socket_ops::ioctl(unsigned int, long, unsigned long*, boost::system::error _code&)]+0x26): undefined reference to `_ioctlsocket@12' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops11getaddrinfoEPKcS4_PK8addrinfoPPS5_RNS_6system10er ror_codeE[boost::asio::detail::socket_ops::getaddrinfo(char const*, char const*, addrinfo const*, addrinfo**, boost::system::error_code&)]+0x2e): undefined refe rence to `_getaddrinfo@16' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops24translate_addrinfo_errorEi[boost::asio::detail::s ocket_ops::translate_addrinfo_error(int)]+0x228): undefined reference to `_WSAGe tLastError@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops4sendEjPK7_WSABUFjiRNS_6system10error_codeE[boost:: asio::detail::socket_ops::send(unsigned int, _WSABUF const*, unsigned int, int, boost::system::error_code&)]+0x57): undefined reference to `_WSASend@28' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops12freeaddrinfoEP8addrinfo[boost::asio::detail::sock et_ops::freeaddrinfo(addrinfo*)]+0xd): undefined reference to `_freeaddrinfo@4' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops15call_setsockoptIiEEiMNS2_6msghdrET_jiiPKvj[int bo ost::asio::detail::socket_ops::call_setsockopt<int>(int boost::asio::detail::soc ket_ops::msghdr::*, unsigned int, int, int, void const*, unsigned int)]+0x29): u ndefined reference to `_setsockopt@20' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail23win_iocp_socket_serviceINS0_2ip3tcpEE13async_receiveINS1_17co nsuming_buffersINS0_14mutable_bufferENS0_17mutable_buffers_1EEENS1_12read_handle rINS0_19basic_stream_socketIS4_NS0_21stream_socket_serviceIS4_EEEES9_NS1_14trans fer_all_tENS_3_bi6bind_tIvNS_4_mfi3mf1Iv11chat_clientRKNS_6system10error_codeEEE NSH_5list2INSH_5valueIPSL_EEPFNS_3argILi1EEEvEEEEEEEEEvRNS5_19implementation_typ eERKT_iT0_[void boost::asio::detail::win_iocp_socket_service<boost::asio::ip::tc p>::async_receive<boost::asio::detail::consuming_buffers<boost::asio::mutable_bu ffer, boost::asio::mutable_buffers_1>, boost::asio::detail::read_handler<boost:: asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_servi ce<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail: :transfer_all_t, boost::_bi::bind_t<void, boost::_mfi::mf1<void, chat_client, bo ost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<chat_client *>, boost::arg<1> (*)()> > > >(boost::asio::detail::win_iocp_socket_service<boos t::asio::ip::tcp>::implementation_type&, boost::asio::detail::consuming_buffers< boost::asio::mutable_buffer, boost::asio::mutable_buffers_1> const&, int, boost: :asio::detail::read_handler<boost::asio::basic_stream_socket<boost::asio::ip::tc p, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::muta ble_buffers_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boo st::_mfi::mf1<void, chat_client, boost::system::error_code const&>, boost::_bi:: list2<boost::_bi::value<chat_client*>, boost::arg<1> (*)()> > >)]+0x41a): undefi ned reference to `_WSARecv@28' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail23win_iocp_socket_serviceINS0_2ip3tcpEE13async_receiveINS1_17co nsuming_buffersINS0_14mutable_bufferENS0_17mutable_buffers_1EEENS1_12read_handle rINS0_19basic_stream_socketIS4_NS0_21stream_socket_serviceIS4_EEEES9_NS1_14trans fer_all_tENS_3_bi6bind_tIvNS_4_mfi3mf1Iv11chat_clientRKNS_6system10error_codeEEE NSH_5list2INSH_5valueIPSL_EEPFNS_3argILi1EEEvEEEEEEEEEvRNS5_19implementation_typ eERKT_iT0_[void boost::asio::detail::win_iocp_socket_service<boost::asio::ip::tc p>::async_receive<boost::asio::detail::consuming_buffers<boost::asio::mutable_bu ffer, boost::asio::mutable_buffers_1>, boost::asio::detail::read_handler<boost:: asio::basic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_servi ce<boost::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail: :transfer_all_t, boost::_bi::bind_t<void, boost::_mfi::mf1<void, chat_client, bo ost::system::error_code const&>, boost::_bi::list2<boost::_bi::value<chat_client *>, boost::arg<1> (*)()> > > >(boost::asio::detail::win_iocp_socket_service<boos t::asio::ip::tcp>::implementation_type&, boost::asio::detail::consuming_buffers< boost::asio::mutable_buffer, boost::asio::mutable_buffers_1> const&, int, boost: :asio::detail::read_handler<boost::asio::basic_stream_socket<boost::asio::ip::tc p, boost::asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::muta ble_buffers_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boo st::_mfi::mf1<void, chat_client, boost::system::error_code const&>, boost::_bi:: list2<boost::_bi::value<chat_client*>, boost::arg<1> (*)()> > >)]+0x428): undefi ned reference to `_WSAGetLastError@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail23win_iocp_socket_serviceINS0_2ip3tcpEE10async_sendINS1_17consu ming_buffersINS0_12const_bufferENS0_17mutable_buffers_1EEENS1_13write_handlerINS 0_19basic_stream_socketIS4_NS0_21stream_socket_serviceIS4_EEEES9_NS1_14transfer_ all_tENS_3_bi6bind_tIvNS_4_mfi3mf1Iv11chat_clientRKNS_6system10error_codeEEENSH_ 5list2INSH_5valueIPSL_EEPFNS_3argILi1EEEvEEEEEEEEEvRNS5_19implementation_typeERK T_iT0_[void boost::asio::detail::win_iocp_socket_service<boost::asio::ip::tcp>:: async_send<boost::asio::detail::consuming_buffers<boost::asio::const_buffer, boo st::asio::mutable_buffers_1>, boost::asio::detail::write_handler<boost::asio::ba sic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost ::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfe r_all_t, boost::_bi::bind_t<void, boost::_mfi::mf1<void, chat_client, boost::sys tem::error_code const&>, boost::_bi::list2<boost::_bi::value<chat_client*>, boos t::arg<1> (*)()> > > >(boost::asio::detail::win_iocp_socket_service<boost::asio: :ip::tcp>::implementation_type&, boost::asio::detail::consuming_buffers<boost::a sio::const_buffer, boost::asio::mutable_buffers_1> const&, int, boost::asio::det ail::write_handler<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost: :asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffe rs_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boost::_mfi: :mf1<void, chat_client, boost::system::error_code const&>, boost::_bi::list2<boo st::_bi::value<chat_client*>, boost::arg<1> (*)()> > >)]+0x3f4): undefined refer ence to `_WSASend@28' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail23win_iocp_socket_serviceINS0_2ip3tcpEE10async_sendINS1_17consu ming_buffersINS0_12const_bufferENS0_17mutable_buffers_1EEENS1_13write_handlerINS 0_19basic_stream_socketIS4_NS0_21stream_socket_serviceIS4_EEEES9_NS1_14transfer_ all_tENS_3_bi6bind_tIvNS_4_mfi3mf1Iv11chat_clientRKNS_6system10error_codeEEENSH_ 5list2INSH_5valueIPSL_EEPFNS_3argILi1EEEvEEEEEEEEEvRNS5_19implementation_typeERK T_iT0_[void boost::asio::detail::win_iocp_socket_service<boost::asio::ip::tcp>:: async_send<boost::asio::detail::consuming_buffers<boost::asio::const_buffer, boo st::asio::mutable_buffers_1>, boost::asio::detail::write_handler<boost::asio::ba sic_stream_socket<boost::asio::ip::tcp, boost::asio::stream_socket_service<boost ::asio::ip::tcp> >, boost::asio::mutable_buffers_1, boost::asio::detail::transfe r_all_t, boost::_bi::bind_t<void, boost::_mfi::mf1<void, chat_client, boost::sys tem::error_code const&>, boost::_bi::list2<boost::_bi::value<chat_client*>, boos t::arg<1> (*)()> > > >(boost::asio::detail::win_iocp_socket_service<boost::asio: :ip::tcp>::implementation_type&, boost::asio::detail::consuming_buffers<boost::a sio::const_buffer, boost::asio::mutable_buffers_1> const&, int, boost::asio::det ail::write_handler<boost::asio::basic_stream_socket<boost::asio::ip::tcp, boost: :asio::stream_socket_service<boost::asio::ip::tcp> >, boost::asio::mutable_buffe rs_1, boost::asio::detail::transfer_all_t, boost::_bi::bind_t<void, boost::_mfi: :mf1<void, chat_client, boost::system::error_code const&>, boost::_bi::list2<boo st::_bi::value<chat_client*>, boost::arg<1> (*)()> > >)]+0x402): undefined refer ence to `_WSAGetLastError@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail12winsock_initILi2ELi0EE7do_initD1Ev[boost::asio::detail::winso ck_init<2, 0>::do_init::~do_init()]+0x7): undefined reference to `_WSACleanup@0' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail25socket_select_interrupterC1Ev[boost::asio::detail::socket_sel ect_interrupter::socket_select_interrupter()]+0x17f): undefined reference to `_i net_addr@4' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops11call_acceptIiEEjMNS2_6msghdrET_jP8sockaddrPj[unsi gned int boost::asio::detail::socket_ops::call_accept<int>(int boost::asio::deta il::socket_ops::msghdr::*, unsigned int, sockaddr*, unsigned int*)]+0x4d): undef ined reference to `_accept@12' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops6listenEjiRNS_6system10error_codeE[boost::asio::det ail::socket_ops::listen(unsigned int, int, boost::system::error_code&)]+0x1f): u ndefined reference to `_listen@8' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops16call_getsocknameIiEEiMNS2_6msghdrET_jP8sockaddrPj [int boost::asio::detail::socket_ops::call_getsockname<int>(int boost::asio::det ail::socket_ops::msghdr::*, unsigned int, sockaddr*, unsigned int*)]+0x23): unde fined reference to `_getsockname@12' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops9call_bindIiEEiMNS2_6msghdrET_jPK8sockaddrj[int boo st::asio::detail::socket_ops::call_bind<int>(int boost::asio::detail::socket_ops ::msghdr::*, unsigned int, sockaddr const*, unsigned int)]+0x1b): undefined refe rence to `_bind@12' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops4recvEjP7_WSABUFjiRNS_6system10error_codeE[boost::a sio::detail::socket_ops::recv(unsigned int, _WSABUF*, unsigned int, int, boost:: system::error_code&)]+0x57): undefined reference to `_WSARecv@28' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZNK 5boost4asio6detail18win_fd_set_adapter6is_setEj[boost::asio::detail::win_fd_set_ adapter::is_set(unsigned int) const]+0x14): undefined reference to `___WSAFDIsSe t@8' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops6selectEiP6fd_setS4_S4_P7timevalRNS_6system10error_ codeE[boost::asio::detail::socket_ops::select(int, fd_set*, fd_set*, fd_set*, ti meval*, boost::system::error_code&)]+0xe4): undefined reference to `_select@20' /cygdrive/c/DOCUME~1/steven/LOCALS~1/Temp/ccKpZSDF.o:chat_client.cpp:(.text$_ZN5 boost4asio6detail10socket_ops15call_getsockoptIiEEiMNS2_6msghdrET_jiiPvPj[int bo ost::asio::detail::socket_ops::call_getsockopt<int>(int boost::asio::detail::soc ket_ops::msghdr::*, unsigned int, int, int, void*, unsigned int*)]+0x31): undefi ned reference to `_getsockopt@20' Info: resolving vtable for boost::detail::thread_data_baseby linking to __imp___ ZTVN5boost6detail16thread_data_baseE (auto-import) collect2: ld returned 1 exit status make: *** [chat_client] Error 1

1 0

nested lambda::bind expression and ptr_vector
by Archie14 30 Sep '09

30 Sep '09

/* can't get the following code to compile. I need to find an templated instance in the list where id is equal 15. */ #include "stdafx.h" #include <boost/ptr_container/ptr_vector.hpp> #include <boost/lambda/bind.hpp> class A { public: int id() const {return _id;} private: int _id; }; template <typename T> class AA { public: const T& item() {return _item;} private: T _item; }; int _tmain(int argc, _TCHAR* argv[]) { typedef AA<A> thistype; boost::ptr_vector<thistype > lst; int comparewith (15); std::find (lst.begin(), lst.end(), (boost::lambda::bind (&A::id, boost::lambda::bind(&thistype::item, boost::lambda::_1)) == comparewith) ); return 0; }

1 0

(no subject)
by vicente.botet 30 Sep '09

30 Sep '09

Hi, is there a way to define a template that will generate a type _____________________ Vicente Juan Botet Escribá

3 2

[serialization] Support for boost classes
by Chard 30 Sep '09

30 Sep '09

Is there a particular reason why the serialization library does not provide serialization functions for types in other boost libraries? Unless I've missed them, but I find I've had to provide implementations for, e.g.: boost::filesystem::path - trivial. boost::multi_array - also seems straightforward, unless I'm missing something there. They don't require invasive techniques, so is it that it's being left up to the particular library owners to decide whether or not to support serialization? If it's an efficiency argument, e.g. one size doesn't fit all, I don't see why 'an' implementation could not be provided (perhaps in /serialization/boost/xyz.hpp). After all, no one would be forced to include/use that particular implementation.

3 4

Using Boost.asio with IGMPv3
by Steve T 30 Sep '09

30 Sep '09

Greetings, I am currently using Boost.asio to send and receive UDP multicast messages. I now have the requirement that all UDP messages use IGMPv3. Is IGMPv3 supported using the Boost.asio library? If not, how can I implement IGMPv3 in Boost.asio? It seems that adding IGMPv3 could be implemented by adding the IP_ADD_SOURCE_MEMBERSHIP option. What would be the best method for adding the socket option IP_ADD_SOURCE_MEMBERSHIP? Thanks in advance, Steve

1 0

[Boost.MPL]is it possible to generate types with all combinations of template arguments?
by Tan, Tom (Shanghai) 30 Sep '09

30 Sep '09

I have a templated class template<class U, class V, class W> class S { //... implementations }; and some stock type implementations for type U, V and W: typedef boost::mpl::vector<U0, U1> u_types; typedef boost::mpl::vector<V0, V1, V2, V3, V4> u_types; typedef boost::mpl::vector<W0, W1, W2, W3, W4> w_types; I want to test class S with all possible combinations of the template arguments, typedef boost::mpl::vector< S<U0,V0,W0>, S<U0,V0,W1>, // ... S<U1,V4,W4>, > s_types; like this: boost::mpl::for_each<s_types>(test_func). The only problem is there are 2*5*5 = 50 combinations that I do not wish to type in one by one. Is there a way to generate all the combinations with boost::mpl or Boost.Preprocessor? thanks.

2 1