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[Simple example] - Compile error in io_fwd.hpp (VC6)
by Romain Prieto 21 Apr '05

21 Apr '05

Hello, I'm new to Boost, and I've just tried to build the serialization library. I've downloaded Boost, and run the following command: >> C:\....\Boost\bjam "-sTOOLS=msvc" install (I got a few warnings about failed builds) Now, when I compile a simple example from the website, i get the following error (many times): c:\...\boost\io_fwd.hpp(28) : error C2239: unexpected token '>' following declaration of 'Ch' c:\...\boost\io_fwd.hpp(28) : error C2059: syntax error : '>' c:\...\boost\io_fwd.hpp(28) : error C2371: 'Ch' : redefinition; different basic types c:\...\boost\io_fwd.hpp(28) : see declaration of 'Ch' Does it have something to do with VC6 ? (I know it's not the best compiler, but I have no choice) I've already installed STLport to have a better template-support... Thank you Romain

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sparse matrix iterator problem
by Golan Green 21 Apr '05

21 Apr '05

Hi, I am trying to use sparse matrix iterators, but it seems that a code that works in VC++ 6.0 does not compile under C++ in .NET I tried a simplified version of the code and it still does not work. boost::numeric::ublas::sparse_matrix<int> matrix; boost::numeric::ublas::sparse_matrix<int>::iterator1 it1 = matrix.begin1(); boost::numeric::ublas::sparse_matrix<int>::iterator2 it2 = it1.begin(); The error message that I get is : error C2039: 'begin' : is not a member of 'boost::numeric::ublas::sparse_matrix<T>::iterator1' with [ T=int ] off course begin() is one of the iterator1 member functions. Does anyone have an idea of what is missing in the project settings? Regards, Golan. --

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RE: [Boost-users] Re: why so many .so and .a files for boost?
by Tom Tan (SH/RDC) 21 Apr '05

21 Apr '05

Yes, to enable multi-threaded code. But how? What's going on inside while compiling with '-pthread'? Or what's the difference between them at the compilation level? Or Is there anything happen at optimization level? -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] Sent: Thursday, April 21, 2005 03:59 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Re: why so many .so and .a files for boost? On 4/20/05, Tom Tan (SH/RDC) <tom.tan(a)ericsson.com> wrote: > got it, then why do i have to turn on the '-pthread' option of g++ when using boost_thread library? Because you need that option to enable multi-threaded code. The Boost Threads library isn't much use without it :-) -- Caleb Epstein caleb dot epstein at gmail dot com _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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shared_ptr/weak_ptr compile error
by Rob Benton 21 Apr '05

21 Apr '05

I'd appreciate it if someone could tell me how to debug the error I'm getting. I've got a class with a member function like this: bool Instruction::button_press(GdkEventButton *, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>); =========================================================================== Instruction.C: In member function `bool Instruction::button_press(GdkEventButton*, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>, boost::weak_ptr<Instruction>)': Instruction.C:138: error: `top' has incomplete type /usr/include/boost/shared_ptr.hpp:43: error: declaration of `struct boost::weak_ptr<Instruction>' Instruction.C:138: error: `left' has incomplete type /usr/include/boost/shared_ptr.hpp:43: error: declaration of `struct boost::weak_ptr<Instruction>' Instruction.C:138: error: `right' has incomplete type /usr/include/boost/shared_ptr.hpp:43: error: declaration of `struct boost::weak_ptr<Instruction>' Instruction.C:138: error: `bottom' has incomplete type /usr/include/boost/shared_ptr.hpp:43: error: declaration of `struct boost::weak_ptr<Instruction>' =========================================================================== Thanks, Rob

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Boost questsion: Link error with boost using g++ and serialize
by kauai 20 Apr '05

20 Apr '05

Hi Folks, Strange problem. I have this declared inline in my class header file: friend class boost::serialization::access; template<class Archive> void serialize (Archive &ar, const unsigned int version); { ar & m_name; // std::string } Builds fine, then I move this to my .cpp file and I get a link error. Here is the output from the linker: test.o(.gnu.linkonce.t._ZN5boost13serialization6access9serializeINS_7archive13text_oarchiveEN19test_RT0_j+0x13): In function `void boost::serialization::access::serialize<boost::archive::text_oarchive, Attribute>(boost::archive::text_oarchive&, Attribute&, unsigned)': /usr/include/c++/3.2.2/bits/stl_alloc.h:238: undefined reference to `void Attribute::serialize<boost::archive::text_oarchive>(boost::archive::text_oarchive&, unsigned)' root/abcmn/cmnUtilities/cmnGenericObjects/tests/GenericObjectsTests.o(.gnu.linkonce.t._ZN5boost13serialization6access9serializeINS_7archive13text_oarchiveEN19test_RT0_j+0x13): In function `void boost::serialization::access::serialize<boost::archive::text_iarchive, Attribute>(boost::archive::text_iarchive&, Attribute&, unsigned)': /usr/include/c++/3.2.2/bits/stl_alloc.h:238: undefined reference to `void Attribute::serialize<boost::archive::text_iarchive>(boost::archive::text_iarchive&, unsigned)' collect2: ld returned 1 exit status Any ideas? Thanks, Kauai __________________________________ Do you Yahoo!? Plan great trips with Yahoo! Travel: Now over 17,000 guides! http://travel.yahoo.com/p-travelguide

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Compilers compliance and boost.
by Mauricio Gomes 20 Apr '05

20 Apr '05

According to these reports it seems there is not a single compiler able to compile 100% of boost, is that right ? http://www.meta-comm.com/engineering/boost-regression/cvs-head/user/ summary.html http://www.meta-comm.com/engineering/boost-regression/cvs-head/ developer/summary_release.html What is the best compiler to use boost ? Or in a less subjective way, what is the compiler that pass most tests ? Although it is mentioned here (http://www.boost.org/status/compiler_status.html) otherwise the link to the "Compiler Status Summary" page is only showing reports on Linux and it is not mentioning the version (CVS-HEAD ?). The other reports (links above) show the results for several platforms but they seem to be only available for CVS-HEAD. Where can I find the reports for a specific version like 1.32 for example ? Thank you for your attention, Mauricio Gomes Pensar Digital phone: 55-11-4121-6287 mobile: 55-11-8319-9610 http://pensardigital.com

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loop vs. for_each & boost::bind
by Mathieu De Zutter 20 Apr '05

20 Apr '05

Hi, I have some code that runs fine: for (Partition::iterator pi = renderRegions.begin(); pi != renderRegions.end(); ++pi); (*pi)->render(&ltt, foo, si); I try to replace it by for_each & boost::bind, std::for_each(renderRegions.begin(), renderRegions.end(), boost::bind(&Region::render, _1, &ltt, foo, si)); but si doesn't get modified, while it should be passed as reference. Some more relevant code: class Region { ... void render(const LightTransportType* ltt, WorkAppraiser& wa, image::SampleImage& result); ... }; typedef std::vector< Region* > Partition; Partition renderRegions; Is this normal behaviour? -- With kind regards, Mathieu

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RE: [Boost-users] Re: why so many .so and .a files for boost?
by Tom Tan (SH/RDC) 20 Apr '05

20 Apr '05

That 's right. Try command: $ls -l libboost_regex-gcc-d.so -rwxr-xr-x 2 tomtan staff 5.5M Feb 21 10:54 libboost_regex-gcc-d.so Now see the second column. more than 1 (2 in this case) means this file has hard links. Anyway, why not a symbolic link ? -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] Sent: Wednesday, April 20, 2005 17:14 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: why so many .so and .a files for boost? Sliwa, Przemyslaw (London) wrote: > I was wondering why I get duplicates on my Linux box as well. > The files are with 1_32 and without extension and they are exactly the > same. On any Unix I would expect those to be hardlinks to each other. Are you sure this is not the case? Markus _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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RE: [Boost-users] Re: why so many .so and .a files for boost?
by Tom Tan (SH/RDC) 20 Apr '05

20 Apr '05

got it, then why do i have to turn on the '-pthread' option of g++ when using boost_thread library? -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] Sent: Wednesday, April 20, 2005 14:51 To: boost-users(a)lists.boost.org Subject: [Boost-users] Re: why so many .so and .a files for boost? Tom Tan (SH/RDC) wrote: > Hi, all, > Why are there so many .so and .a files in $BOOT_HOME/lib? Take boost_singal as an example, there are about a dozen . They are: > libboost_signals-gcc-1_32.a > libboost_signals-gcc-1_32.so > libboost_signals-gcc.a > libboost_signals-gcc.so > libboost_signals-gcc-d-1_32.a > libboost_signals-gcc-d-1_32.so > libboost_signals-gcc-mt.a > libboost_signals-gcc-mt-d-1_32.so > .... > I wonder what are 'd' and 'mt' mean? "debug" and "mutil-thread"? If so, i wonder when i use a 'mt' thread , e.g. libboost_signals-gcc-mt-d-1_32.so, will i have to use -pthread for Linux and -pthreads for Solaris along with my other g++ compile options. Why? > Another, for stdc++.so, are there two versions , each for 'mutil-thread' and 'sigal-thread' support? What's the relationship between these versions and the compiler options like '-pthread' ? Answers at.. http://www.boost.org/more/getting_started.html#Results -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - Grafik/jabber.org _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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wrong extension of shared libraries on HP/UX
by Oliver Kowalke 20 Apr '05

20 Apr '05

Hi, I've compiled boost on HP/UX with gcc. The extension of the shared libraries is *.so. I think it should be *.sl ! how can I fix this? thx, Oliver

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