- Boost-users - lists.preview.boost.org

Questions about boost.thread
by Kosta 23 Dec '04

23 Dec '04

Hi! I have the following questions about boost.thread: 1) Did I miss an abstraction about atomic operations, e.g. for ++, --, +=, -=, <, ==, =, ... for uint8_t, uint16_t, uint32_t, ... (something like InterlockedIncrement() on WIN32)? I know that I can Mutexes and Locks to implement the desired behavior, but I think a more lightweight solution for this basic operations should be available, too. 2) How can I change the priority of a boost::thread? 3) boost::shared_ptr<> and boost::weak_ptr<> are not thread safe, are they? What is the suggested way to write thread safe implementations of them? Kosta

2 1

RE: [Boost-users] /clr causes __fastcall to become __stdcall-->unresolved externals for regex
by Fuqua, Andrew (ISSAtlanta) 23 Dec '04

23 Dec '04

> You'll have to modify the definition of BOOST_REGEX_CALL in > boost/regex/config.hpp so that it's __cdecl whatever the build options are > (this is what the next version will do anyway BTW). Excellent. That's easy enough. THANKS!

1 0

semaphore
by Amerio 23 Dec '04

23 Dec '04

Hello, I'm lacking a boost semaphore, so I tried to roll my own. Being carefull with threads, I present here my version, hoping you gurus will spot any flaw. class sem { sem(unsigned count): m_count(count) {} void post() { boost::mutex::scoped_lock lock(m_mutex); ++m_count; m_cond_.notify_one(); } void wait() { boost::mutex::scoped_lock lock(m_mutex); while ( m_count==0 ) m_cond.wait( lock ); --m_count; } private: unsigned m_count; boost::mutex m_mutex; boost::condition m_cond; }; Objective : I need a semaphore to sync many readers to a single input queue. If you know another implementation or solution to this specific problem, your help is welcome. Thank you.

3 6

Boost contents
by Foster, Gareth 23 Dec '04

23 Dec '04

Hello, Just a general interest question which came to me reading the email below. Are there any critera for what can/can't be added to boost? Somebody was telling me about ACE recently, which apprently attempts to wrap POSIX with C++. It looks like there is overlap there with Boost. Does Boost have some similar aim, to be a set of libraries covering a certain anlge, or is it litterally a collection of useful code? Would something like a GUI abstraction system be considered? Or is the limit perhaps things that could resonably make it into the STL? Hope that isn't off topic, Thanks! Gaz -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Jonathan Turkanis Sent: 23 December 2004 09:58 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: units library Dan Dimerman wrote: > Jeff Garland wrote: >> On Wed, 22 Dec 2004 15:33:18 -0700, Chris Goller wrote >> >>> I've been looking around for a unit conversion library. I've seen >>> some on http://groups.yahoo.com/group/boost/files/ but am wondering >>> if any have been put into boost release yet. >> >> >> Nope, none are in a boost release. And I think that the most active >> author has recently abandoned his effort :-( So I'm afraid you >> shouldn't expect anything soon. >> >> Jeff > Are you referring to something like this: > > boost_1_32_0/libs/mpl/doc/tutorial/dimensional-analysis.html I believe he's refering to Andy Little's pqs library. Andy announced recently that he wasn't going to propose it for review, but he didn't say why. I never looked at it. Matthias Schabel also was working on a physical quantities library in the last year or so, but I haven't heard anything recently. David and Aleksey appear to discuss dimencional anaylsis in some detail here: http://www.artima.com/cppsource/metafunctions.html, but I don't know how close this comes to a full-fledged dimensional anaylsis library. Jonathan _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

2 1

/clr causes __fastcall to become __stdcall --> unresolved externals for regex
by Fuqua, Andrew (ISSAtlanta) 23 Dec '04

23 Dec '04

I'm getting a handful of the following errors and warnings while trying to build with boost regex in MS Visual C++ .NET with the /clr option (managed extensions). boost_1_32_0\boost\regex\v4\match_results.hpp(189): warning C4561: '__fastcall' incompatible with the '/clr' option: converting to '__stdcall' error LNK2001: unresolved external symbol "public: class boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> > & __stdcall boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> >::operator=(class boost::reg_expression<char,class boost::regex_traits<char>,class std::allocator<char> > const &)" (??4?$reg_expression@DV?$regex_traits@D@boost@@V?$allocator@D@std@@@boos t@@$$FQAGAAV01@ABV01@@Z) The debug build works fine because config.hpp defines BOOST_REGEX_CALL to _cdecl. It's the release configuration that has the trouble with __fastcall being changed to __stdcall. How do I get around this (without getting rid of /clr or using a debug build)? thanks

2 1

RE: [Boost-users] Re: [newbie] building serialization library
by Muruganathan Annamalai 23 Dec '04

23 Dec '04

hi, When I try to compile the serialization library, Iam getting the following error, "cl" /Zm800 -nologo /EHsc -c -DNDEBUG -DNDEBUG -DBOOST_TEST_NO_AUTO_LINK=1 /Ogity /O2 /Gs /Ob2 /EHsc /GR /MT -Gy -I"bin\boost\libs\serialization\build" -I"d:\DEVSTU~1.0\Common\include" -I"E \boost_1_32_0" -Fo"bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\rele ase\runtime-link-static\threading-multi\xml_wgrammar.obj" -Tp"E:\boost_1_32_0\libs\serialization\build\.. src/xml_wgrammar.cpp" ..failed vc-C++ bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\release\ runtime-link-static\threading-multi\xml_wgrammar.obj... c-C++ bin\boost\libs\serialization\build\libboost_wserialization.lib\msvc\release\ runtime-link-static\threading-multi\xml_wiarchive.obj ml_wiarchive.cpp :\boost_1_32_0\boost/spirit/core/config.hpp(56) : fatal error C1189: #error : "Compiler not supported. See note in <boost/spirit/core/config.hpp>" If you look at config.cpp it is mentioned vc6 is not supported. How to overcome this? --annamalai -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org]On Behalf Of Robert Ramey Sent: Wednesday, December 22, 2004 9:52 PM To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: [newbie] building serialization library [newbie] building serialization libraryyes, see http://www.meta-comm.com/engineering/boost-regression/developer/serializatio n.html Robert Ramey "Muruganathan Annamalai" <Annamalai.Muruganathan(a)sisl.co.in> wrote in message news:037B536F875D9F4CA23B747E40FCF97B0558E9CF@blrk001a.sisl.co.in... hi, Is it possible to build the boost serialization library using VC6 compiler. --annamalai --------------------------------------------------------------- Attempted search from D:\c\whereis up to the root so i'm sorry to bother y'all with such a simple problem, all i need to know is how to compile (the 'hello world' scenario). thanks for your attention. -frank brown (stupid jerk) http://www.inwa.net/~frog _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

2 1

newbie-problem with using boost.python
by ozan 23 Dec '04

23 Dec '04

I am trying to build the example python code with boost by following the instructions on http://www.boost.org/libs/python/doc/tutorial/doc/html/python/hello.html but when I command "bjam -sTOOLS=msvc" on my command line (on WINDOWS XP) I am getting some error and messages like followings and I cannot get any boost_python.dll or hello.pyd. Thanks! ...found 1448 targets... ...updating 10 targets... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\from_python.obj from_python.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\libs\python\build\../s rc/converter/from_python.cpp(142) : error C2512: 'vector<struct boost::python::converter::rvalue_from_python_chain const *,class std::allocator<struct boost::python::converter::rvalue_from_python_chain const *> >' : no appropriate default constructor available CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\from_python.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_ 32_0\libs\python\build\../src/converter/from_python.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\from_python.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\type_id.obj type_id.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\type_id.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0 \libs\python\build\../src/converter/type_id.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\type_id.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\class.obj class.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\class.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\l ibs\python\build\../src/object/class.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\class.obj... vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\inheritance.obj inheritance.cpp D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(420) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\PROGRA~1\MICROS~3\VC98\INCLUDE\vector(428) : error C2664: '__thiscall std::vector<unsigned int,class std::allocator<unsigned int> >::std::vector<unsigned int,class std::allocator<unsigned int> >(unsigned int,const unsigned int &,const class std::allocator<unsigned int> &)' : cannot convert parameter 1 from 'const class std::allocator<unsigned int>' to 'unsigned int' No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2504: 'add_reference' : base class undefined D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2143: syntax error : missing ',' before '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2059: syntax error : '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2518: keyword 'typename' illegal in base class list; ignored D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(100) : see reference to class template instantiation 'detail::add_const_reference<T>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2143: syntax error : missing ';' before '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2059: syntax error : ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2059: syntax error : '<' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(109) : error C2039: 'type' : is not a member of '`global namespace'' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : error C2143: syntax error : missing ';' before '}' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(117) : see reference to class template instantiation 'detail::init_tail<MyTail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2327: 'cons<Head,Tail>::head' : member from enclosing class is not a type name, static, or enumerator D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2065: 'head' : undeclared identifier D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2656: 'cons' : function not allowed as a bit field D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2040: 'tail' : 'int (void)' differs in levels of indirection from '' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2143: syntax error : missing ';' before '{' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(179) : error C2334: unexpected token(s) preceding '{'; skipping apparent function body D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : error C2059: syntax error : 'End of Token Stream' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : error C2238: unexpected token(s) preceding ';' D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : fatal error C1201: unable to continue after syntax error in template class definition D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\boost/tuple/detail/tup le_basic_no_partial_spec.hpp(221) : see reference to class template instantiation 'cons<Head,Tail>' being compiled CALL "D:\Program Files\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" >nul "D:\Program Files\Microsoft Visual Studio\VC98\bin\cl" /Zm800 -nologo /EHsc -c -DBOOST_PYTHON_DYNAMIC_LIB -DBOOST_PYTHON_SOURCE /Z7 /Od /Ob0 /EHsc /GR Dd -I"..\..\..\..\bin\boost\libs\python\build" -I"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0" -I"D:\Program Files\Python\include" -Fo"..\..\..\..\bin\boost\libs\python\build\boost_py thon.dll\msvc\debug\threading-multi\inheritance.obj" -Tp"D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_ 32_0\libs\python\build\../src/object/inheritance.cpp" ...failed vc-C++ ..\..\..\..\bin\boost\libs\python\build\boost_python.dll\msvc\debug\threadin g-multi\inheritance.obj... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>from_p ython.obj... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD... ...skipped <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.lib for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.CMD... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.CMD for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.lib... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.pyd for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll... ...skipped <@boost!libs!python!example!tutorial\hello.pyd\msvc\debug\threading-multi>he llo.lib for lack of <@boost!libs!python!build\boost_python.dll\msvc\debug\threading-multi>boost_ python.dll... ...failed updating 4 targets... ...skipped 6 targets... D:\Documents and Settings\ozi\Desktop\Phyton\boost_python\boost_1_32_0\libs\python\example\tu torial> --------------------------------- Do you Yahoo!? Read only the mail you want - Yahoo! Mail SpamGuard.

2 1

Any interest in type_traits workaround macros for ill conforming compilers?
by Ray Hilton 22 Dec '04

22 Dec '04

Something along theese lines #include <boost\type_traits.hpp> #define BOOST_REMOVE_POINTER(arg) \ namespace boost \ { \ template <> \ struct remove_pointer<arg*> \ { \ typedef arg type; \ }; \ } // end namespace boost user file struct abc { object x; object b; }; BOOST_REMOVE_POINTER(abc) boosts remove_pointer<T> will now work as expected for abc types Do such macros already exist in boost? Such macros can also be used on good compilers* to describe traits that it can't figure out, such as has_nothrow_assign<T> * compilers supporting partial template specialization

3 2

operators.hpp question.
by Fracassi＠t-online.de 22 Dec '04

22 Dec '04

Hello, I am trying to use the operators.hpp templates to create the following behaviour. I have a templated class like this. template <class T> class example {} now I want to do something like this: example<SomeType> r; example<SomeType> a; example<AnotherType> b; r = a * b To write the multiplication manually I would have to write a function template template <class T, class OtherT> example<T> operator*(const example<T>& op1, const example<OtherT>& op2); So, now my question is: How can this be done with operators.hpp? Obviously ... template <class T> class example : boost::multiplicative2<example<T>, example<OtherT> > { template <OtherT> example<T>& operator*=(const example<OtherT>& op); template <OtherT> example<T>& operator/=(const example<OtherT>& op); } ... won't work, since "OtherT" isn't defined at its first occurrence. Is there a way to do what I intended, or do I have to write these operators manually? Thanks, Fabio Fracassi

2 1

[iterator] iterator_facade operator-> pointee always const
by Tobias Schwinger 22 Dec '04

22 Dec '04

Hi, While using boost::iterator_facade wirh a class type as argument for both the 'Reference' and the 'Value' template type parameter I noticed that I can't access non-const members via operator->. *i is not const and neither 'Value' nor 'Reference' are. A naiv look at the source shows me that operator_arrow_proxy::operator->() always returns 'T const *'. Is this a bug or an intentional restriction ? I'm using the current CVS version (just updated, head revision) and tried to compile with GCC and MSVC. Thanks for any help in advance, Tobias

3 15