August 2009 - Boost-users - lists.preview.boost.org

Private unordered map in openMP
by MeMooMeM 21 Aug '09

21 Aug '09

Hi everyone, I am trying to assign one private unordered map per thread. As you know, I cannot declare a new array inside the parallel section and make it private. So I declared a map: typedef boost::unordered_map<int, int> Map_t; ... Map_t localMap; and passed it to the parallel section as private (please see http://www.nabble.com/file/p25088091/doesnotwork.cc doesnotwork.cc ) #pragma omp parallel default(shared) private(iam, i, localMap) { ... } I got the following error: openmptry.cc: In function ‘int main(int, char**)’: openmptry.cc:0: internal compiler error: in lower_stmt, at gimple-low.c:282 Please submit a full bug report, ... ... I can solve this problem by declaring a map pointer, creating local copies using 'new' and changing "++(*localMap)[iam]" to "++localMap[iam]" "localMap->begin()" to "localMap.begin()" etc... (please see http://www.nabble.com/file/p25088091/works.cc works.cc ) But these changes will require lots of editing in the code. So, is there a way to use the map directly? Thanks so much in advance! PS: desired output for these test codes is (in arbitrary order): 2: 2 -> 1 7: 7 -> 1 5: 5 -> 1 6: 6 -> 1 4: 4 -> 1 1: 1 -> 1 3: 3 -> 1 0: 0 -> 1 -- View this message in context: http://www.nabble.com/Private-unordered-map-in-openMP-tp25088091p25088091.h… Sent from the Boost - Users mailing list archive at Nabble.com.

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BUG? Spirit Grammar_def
by Leandro Santos de Lima 21 Aug '09

21 Aug '09

I'm trying to migrate my code from VSC++ 6 to VSC++ 2008 express edition and from Intel compiler to Microsoft compiler. Everything were easy to migrate except that I'm receiving this errors now: > 1>------ Build started: Project: Base, Configuration: Debug Win32 ------ 1>Compiling... 1>DefaultScriptReader.cpp 1>Warning: This header is deprecated. Please use: > boost/spirit/include/classic.hpp 1>Warning: This header is deprecated. Please use: > boost/spirit/include/classic_dynamic.hpp 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(33) > : error C2143: syntax error : missing ';' before '<' 1> > c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(53) > : see reference to class template instantiation > 'boost::spirit::lazy_parser<ActorT>' being compiled 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(33) > : error C4430: missing type specifier - int assumed. Note: C++ does not > support default-int 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(34) > : error C2238: unexpected token(s) preceding ';' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(40) > : error C2065: 'actor_result_t' : undeclared identifier 1> > c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/dynamic/lazy.hpp(42) > : see reference to class template instantiation > 'boost::spirit::lazy_parser<ActorT>::result<ScannerT>' being compiled 1>Warning: This header is deprecated. Please use: > boost/spirit/include/phoenix1.hpp 1>Warning: This header is deprecated. Please use: > boost/spirit/include/classic_grammar_def.hpp 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(104) > : error C2039: 'nil_t' : is not a member of 'boost::phoenix' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(112) > : error C2039: 'nil_t' : is not a member of 'boost::phoenix' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(180) > : error C2143: syntax error : missing ';' before '<' 1> > c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(299) > : see reference to class template instantiation > 'boost::spirit::grammar_def<T,T0,T1,T2,T3,T4,T5,T6,T7>' being compiled 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(180) > : error C4430: missing type specifier - int assumed. Note: C++ does not > support default-int 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(187) > : error C2238: unexpected token(s) preceding ';' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(277) > : error C2143: syntax error : missing ';' before '<' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(277) > : error C4430: missing type specifier - int assumed. Note: C++ does not > support default-int 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(277) > : error C2238: unexpected token(s) preceding ';' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(277) > : error C2988: unrecognizable template declaration/definition 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(277) > : error C2059: syntax error : '<' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(297) > : error C2334: unexpected token(s) preceding ':'; skipping apparent function > body 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(298) > : error C2760: syntax error : expected '{' not ';' 1>c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(299) > : fatal error C1075: end of file found before the left brace '{' at > 'c:\Desenvolvimento\dff_dependencies_windows\include\boost/spirit/home/classic/utility/grammar_def.hpp(54)' > was matched 1>Build log was saved at > "file://c:\Desenvolvimento\DFF\VC9\Base\Debug\BuildLog.htm" 1>Base - 17 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== How you can see, the MS Compiler shows syntax errors on boost library. I found on boost site that this compiler, version 9, is compatible to the library. So, what is going on to my code? Thanks Leandro Lima

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Help with compiling boost for Debian (receiving file not found error when compiling boost-dependant program)
by Jónatan Nilsson 21 Aug '09

21 Aug '09

Hi all. I am trying to compile Ghost++, a Warcraft 3 dedicated server program and one of it's dependency is Boost. The following is the instruction on how to compile Boost from the Ghost++ documentation (a.k.a. the readme file): -------------------------------- You'll need Boost version 1.38.0 (or potentially any newer versions). If your package manager has this version available please use it instead of installing it manually. To install Boost manually: 7. Download and extract Boost 1.38.0 from http://www.boost.org/ 8. su to root. 9. ./configure --prefix=/usr --with-libraries=date_time,thread,system,filesystem,regex 10. Edit the newly created Makefile with your favourite text editor. The second line should be "BJAM_CONFIG=". Replace it with "BJAM_CONFIG= --layout=system". 11. make install -------------------------------- Unfortunately you have removed the ./confiigure and make and replaced them with new commands: bootstrap & bjam. I tried running the following commands: -------------------------------- ./bootstrap.sh --with-libraries=date_time,thread,system,filesystem,regex ./bjam install -------------------------------- But when I try to 'make' Ghost++ I get the following error: -------------------------------- # make ... bnet.cpp:38:32: error: boost/filesystem.hpp: No such file or directory bnet.cpp:39:27: error: boost/regex.hpp: No such file or directory ... -------------------------------- What am I doing wrong :S I am using debian linux and I tried to apt-get install boost but the newest version there was 1.35 and when I tried running 'make' on Ghost++ after installing those packages I received a new set of errors: -------------------------------- bnet.cpp:1739: error: âclass boost::filesystem::basic_directory_entry<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >â has no member named âfilenameâ bnet.cpp:1741: error: âclass boost::filesystem::basic_directory_entry<boost::filesystem::basic_path<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, boost::filesystem::path_traits> >â has no member named âfilenameâ bnet.cpp:1757: error: âstruct boost::filesystem::pathâ has no member named âfilenameâ make: *** [bnet.o] Error 1 -------------------------------- Now I am stuck with no idea on what could be wrong with the boost installation... Much help appreciated :) Sincerely: Jonatan Nilsson Iceland

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[scoped_array] and boost::begin()
by Robert Jones 21 Aug '09

21 Aug '09

I am shocked to discover that boost::begin() etc, does not seem to work for boost::scoped_array. Is there a reason for this? - Rob.

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Boost::iostreams::device::file_descriptor* not implemented?
by Grzegorz Slodkowicz 21 Aug '09

21 Aug '09

Hi, I can't seem to get file_descriptor* family of classes to work. I've reduced my code to the following (actually I want to write to sockets): #include <boost/iostreams/device/file_descriptor.hpp> #include <boost/iostreams/stream.hpp> namespace io = boost::iostreams; int main(int argc, char *argv[]) { typedef io::stream<io::file_descriptor_sink> ofdstream; ofdstream outstream(1); } Here's what happens when I try to compile (under Mac OS X): erato:bioinf jergosh$ g++ -I/usr/local/boost_1_39_0 -o fdboost fdboost.cpp Undefined symbols: "boost::iostreams::file_descriptor::file_descriptor(int, bool)", referenced from: boost::iostreams::file_descriptor_sink::file_descriptor_sink(int, bool)in ccuxOs9P.o "boost::iostreams::file_descriptor::close()", referenced from: void boost ::iostreams ::detail ::close_impl < boost ::iostreams ::closable_tag > ::close < boost ::iostreams ::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, std::_Ios_Openmode)in ccuxOs9P.o "boost::iostreams::file_descriptor::write(char const*, int)", referenced from: int boost ::iostreams ::detail ::write_device_impl < boost ::iostreams ::output > ::write < boost ::iostreams ::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, boost ::iostreams ::char_type_of<boost::iostreams::file_descriptor_sink>::type const*, int)in ccuxOs9P.o "boost::iostreams::file_descriptor::seek(long long, std::_Ios_Seekdir)", referenced from: std::fpos<__mbstate_t> boost ::iostreams ::detail ::seek_device_impl < boost ::iostreams ::any_tag > ::seek < boost ::iostreams ::file_descriptor_sink>(boost::iostreams::file_descriptor_sink&, long long, std::_Ios_Seekdir, std::_Ios_Openmode)in ccuxOs9P.o ld: symbol(s) not found collect2: ld returned 1 exit status What am I missing here? TIA, Greg -- Greg Slodkowicz Building 208, Room 012a Center for Biological Sequence Analysis Department of Systems Biology Technical University of Denmark

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Trying to compile boost 1.40
by Mathieu Malaterre 21 Aug '09

21 Aug '09

Hi there, I am trying to compile boost 1.40 to start playing with the PBGL. I tried using bjam and followed the basic instructions but it fails to inspect my system and leads to: $ ./bjam install Note: Building Boost.Regex with Unicode/ICU support enabled Using ICU in /usr/include warning: Graph library does not contain optional GraphML reader. note: to enable GraphML support, set EXPAT_INCLUDE and EXPAT_LIBPATH to the note: directories containing the Expat headers and libraries, respectively. warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user_config.jam warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. I would think I need mpi to get PBGL working, so I decided to switch to cmake. But again it is failing: $ mkdir bin && cmake .. && make modularize && make && make install leads to: /usr/bin/cmake -E cmake_progress_report /home/mathieu/Software/boost_1_40_0_beta1/bin/CMakeFiles [ 97%] Building CXX object tools/inspect/CMakeFiles/inspect.dir/license_check.cpp.o cd /home/mathieu/Software/boost_1_40_0_beta1/bin/tools/inspect && /usr/bin/c++ -DBOOST_ALL_NO_LIB=1 -I/home/mathieu/Software/boost_1_40_0_beta1 -I/home/mathieu/Software/boost_1_40_0_beta1/libs/inspect/include -O3 -DNDEBUG -pthread -D_REENTRANT -o CMakeFiles/inspect.dir/license_check.cpp.o -c /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp:8:27: error: boost/regex.hpp: No such file or directory /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp:13: error: ‘regex’ in namespace ‘boost’ does not name a type /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp: In member function ‘virtual void boost::inspect::license_check::inspect(const std::string&, const boost::filesystem::path&, const std::string&)’: /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp:39: error: ‘regex_search’ is not a member of ‘boost’ /home/mathieu/Software/boost_1_40_0_beta1/tools/inspect/license_check.cpp:39: error: ‘license_regex’ was not declared in this scope make[2]: *** [tools/inspect/CMakeFiles/inspect.dir/license_check.cpp.o] Error 1 make[2]: Leaving directory `/home/mathieu/Software/boost_1_40_0_beta1/bin' make[1]: *** [tools/inspect/CMakeFiles/inspect.dir/all] Error 2 make[1]: Leaving directory `/home/mathieu/Software/boost_1_40_0_beta1/bin' make: *** [all] Error 2 Finally I tried using boost trunk (r55688), but it leads to: [ 17%] Building CXX object libs/spirit/example/qi/CMakeFiles/spirit-calc6.dir/calc6/calc6.cpp.o /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp: In member function ‘int format_policies<T>::floatfield(T) const’: /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:141: error: ‘base_type’ has not been declared /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:144: error: ‘base_type’ has not been declared /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp: In member function ‘bool format_policies<T>::exponent(OutputIterator&, long int) const’: /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:181: error: expected primary-expression before ‘,’ token /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:181: error: expected primary-expression before ‘>’ token /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:183: error: expected primary-expression before ‘,’ token /home/mathieu/Software/boost-trunk/libs/spirit/example/karma/printf_style_double_format.cpp:183: error: expected primary-expression before ‘>’ token System: Debian 5.0, gcc --version 4.3.4 Thanks for hints, -- Mathieu

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boost.pp : generate a const size_t array initializer
by Hicham Mouline 21 Aug '09

21 Aug '09

Hello, I have const size_t MaxNumber = 16; Can I generate this: const size_t elts[MaxNumber] = {0, 1, ..., 15}; with Boost.PP? I suppose I need to #define MaxNumber for PP? Regards,

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Multiple calls to tcp::socket::async_receive fail on Windows
by Peter Chapman 21 Aug '09

21 Aug '09

I'm under the impression that queueing several async reads will allow the OS to fill one buffer while the read handler for a previous read is still executing. This comes partly from reading: http://www.jetbyte.com/portfolio-showarticle.asp?articleId=44&catId=1&subca… Although I can't find any mention of this practice in the asio docs or examples, it seems to "mostly work". And it makes logical sense. My program is: - Single-threaded - Not using "composed" reads (ie boost::asio::async_read) On Linux this technique works fine for multiple pending reads. On Windows, it sometimes leads to handlers being called in the wrong order. My sample program (attached) can be called in 2 ways: a) to write a known data stream to a socket b) to compare the same stream of data to bytes being read from a socket via multiple async_receive()s. So in one terminal, receive data using 8 concurrent async_receives: async_recv.exe receive 8 and in the other: async_recv.exe send On Windows (XP Pro 64, boost 1.39), the first program exits within a few seconds saying "streams differ". I haven't been able to reproduce the failure on XP Pro 32, Server 2003 or Linux, although this may just be timing dependent. Am I doing something wrong or unreasonable? Thanks! Pete

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Cpp-Next - slightly OT
by Robert Jones 21 Aug '09

21 Aug '09

There's a terrific article about RVO and copy elision by Dave A at http://cpp-next.com/ If I understand this correctly a decent compiler (say VS2008) will compile this sequence using namespace std; typedef vector< string > V; V get_names( ); V sorted(V names) { sort(names); V ret; swap(ret, names); return ret; } V v = sorted( get_names( ) ); to generate zero copies - the final value of v will be the actual object generated by get_names(). Whereas this code sequence using namespace std; typedef vector< string > V; V get_names( ); V sorted(V names) { sort(names); V ret; swap(ret, names); return ret; } V tmp = get_names( ); V v = sorted( tmp ); Generates exactly one vector copy operation, at the call site of sorted(). Does that sound right? - Rob.

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[boost::asio] Problem connecting to remote host
by Silvio Reis Junior 21 Aug '09

21 Aug '09

Hello folks.I'm rewriting the following perl script http://images.rapidshare.com/software/rsapiresume.pl using boost::asio for sockets operations. The code uploads files to rapidshare.com. To ao it it asks for an available server for uploading. To request the free server my code works just fine but when I try to connect to the upload server it gives an exception. I thought that something was wrong with the server domain which is something like rsXXX13.rapidshare.com but the perl code uses the same format and it works. Maybe I'm making some mistake, so I'd appreciate if you could give me some advise. I'm attaching the code I'm experiencing with. Thanks in advance! Silvio Reis Júnior -- http://twitter.com/sreisjr

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