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Formatted reports and statistics charts for Boost Unit Test Framework
by Slava Imeshev 22 Feb '09

22 Feb '09

Hi All, I just wanted to let you know that now Parabuild is integrated with Boost Unit Test Framework. It provides formatted reports and statistics charts from test logs generated as a part of Continuous Integration or daily and nightly builds: http://www.viewtier.com/products/parabuild/boost_unit_test_framework.h tm Regards, Slava Imeshev

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[accumulators] help/advise required: Need a container to hold accumulator_set
by dhruva 22 Feb '09

22 Feb '09

Hello, I am writing a wrapper class which gets data over time and has to compute a variety of statistics using boost::accumulators. The accumulator cannot be a variable on the stack (function local variable) as it will go out of scope after the function invocation. I will have to make it a member variable of a class. I will not know the type of calculations to requested at compile time. I therefore need a generic accumulator type as member and add the specific type at runtime. In short, I need a container to hold accumulator_set objects. Different type of accumulator_set objects in the container will perform different calculations. The type of calculation I want to perform will be based on input at runtime. pseudo code: #define MEAN 1 #define MAX 2 class calc { public: setmetric(int metricType) { accumulator_set<double, features<> > *pacc; if (1 == metricType) { pacc = new accumulator_set<double, features <tag::mean> >; } else if(2 == metricType) { pacc = new accumulator_set<double, features <tag::max> >; } m_Vacc.push_back(pacc); } compute(double input) { // I will iterate over the vector, get the accumulator_set objects // acc_obj(input) followed by extract } private: std::vector <accumulator_set<double, features<> > *> m_Vacc; }; If features could be added at runtime, I probably could have solved this problem. Other approach is to have an accumulator_set with all supported features (supported by my application) as dropable. Drop all the unnecessary features based on user input. By adding all supported types, I will get a complete accumulator_set class at compile time and having a container to hold it is straight forward. Any help or advise is really appreciated. I may have raised a lot of basic questions but I am a boost newbie and taking a plunge. -dhruva Cricket on your mind? Visit the ultimate cricket website. Enter http://beta.cricket.yahoo.com

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boost::asio::read_until reads too much!
by Rob Currey 22 Feb '09

22 Feb '09

executing this code: boost::asio::streambuf b; std::cout << "socket.available()=" << socket.available() << std::endl; size_t received = boost::asio::read_until(socket, b, "\r\n"); std::cout << "received=" << received << std::endl; std::cout << "b.size()=" << b.size() << std::endl; std::istream is(&b); std::getline(is, m_token); results in output of: socket.available()=34 received=26 b.size()=34 In my app I need to read the 8 bytes (after the 26) as binary (and hence don't use the streambuf to do so). Yet read_until has already consumed them from the socket and placed them in the streambuf :( Suggestions?

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boost library advice wanted
by Sean Farrow 21 Feb '09

21 Feb '09

Hi: I am in the process of implementing a program that turned commands from voice recognition software in to code that are entered in to an application. there are approximately 200 codes available in this particular sofware I am automating. Wile I could use boost::stringAlgo along with the functions available in the stl there must be a better alternative. To give an idea of howthis would work the user might say: conditional new line, and [l] would be placed in the current document onscreen. the user could say skip 5 lines and [sk5] would be entered. >From this it is clar that: 1. some tokens are voiced by the user but are not needed when analysing the input. e.g lines is used for ease of use but not actually used in the analysis. 2. some tokens are only followed by certain othe tokens, e.g new can be followed by line, page or paragraph. tow queries: 1. What is the best boost library to use in this situation, boost.wav, boost.spirit, boost.xpressive or boost.tokenizer. 2. Has anybody else done anything like this, and hence can offer any implementation advice. Any help apreciated. Sean.

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[Question] Software documentation
by Mario Chacon 21 Feb '09

21 Feb '09

Hello: It's possible that some plugin or some another soft generate class diagram from the source?? I know that with oxygen can generate a beautiful HTML, but Can I do something more? Salud... masch...

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[serialization] newbie compilation question
by lenberman 21 Feb '09

21 Feb '09

I've got boost 1.38 built. When I try to build demo.cpp, it fails. I'm building in the serialization/examples subdirectory. I think this is a supported compiler. No doubt I'm doing something very stupid and hopefully very easy to fix. Thanks in advance. --Len make -k g++ --version g++ (Debian 4.3.2-1.1) 4.3.2 Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. g++ -g -I/share/space/net-srcs/boost_1_38_0 demo.cpp In file included from demo.cpp:16: /share/space/net-srcs/boost_1_38_0/boost/archive/tmpdir.hpp: In function ‘char* boost::archive::tmpdir()’: /share/space/net-srcs/boost_1_38_0/boost/archive/tmpdir.hpp:42: warning: deprecated conversion from string constant to ‘char*’ /tmp/ccezla7D.o: In function `boost::archive::text_iarchive& boost::serialization::smart_cast_impl::reference<boost::archive::text_iarchive&>::polymorphic::cross::cast<boost::archive::detail::basic_iarchive>(boost::archive::detail::basic_iarchive&)': /share/space/net-srcs/boost_1_38_0/boost/serialization/smart_cast.hpp:78: undefined reference to `typeinfo for boost::archive::detail::basic_iarchive' /tmp/ccezla7D.o: In function `boost::archive::text_oarchive& boost::serialization::smart_cast_impl::reference<boost::archive::text_oarchive&>::polymorphic::cross::cast<boost::archive::detail::basic_oarchive>(boost::archive::detail::basic_oarchive&)': /share/space/net-srcs/boost_1_38_0/boost/serialization/smart_cast.hpp:78: undefined reference to `typeinfo for boost::archive::detail::basic_oarchive' /tmp/ccezla7D.o: In function `~iserializer': /share/space/net-srcs/boost_1_38_0/boost/archive/detail/iserializer.hpp:141: undefined reference to `boost::archive::detail::basic_iserializer::~basic_iserializer()' /share/space/net-srcs/boost_1_38_0/boost/archive/detail/iserializer.hpp:141: undefined reference to `boost::archive::detail::basic_iserializer::~basic_iserializer()' ... more errors

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OT: generic template type from specific type?
by Neal Becker 21 Feb '09

21 Feb '09

Say I have: template<typename in_t> void F (in_t & in) ... main() { F<std::vector<int> > (...) Suppose in_t is a templated container, such as std::vector<int>. Is there a way within the function 'F' to get the generic container type, 'std::vector' when F is instantiated with a specific e.g., std::vector<int>? Maybe I'm missing something obvious :)

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[serialization][build][spirit][repost] Problems with spirit when building 1.38 serialization on windows with Intel C++ 11.0
by Jesse Perla 21 Feb '09

21 Feb '09

Sorry for the repost, but it looks like the formatting on my previous post was messed up, and I wouldn't blame people for not reading it I am on windows using the latest version of the intel compiler (set in my user-config.jam). I was able to do a debug build of everything using: bjam link=static debug stage But when I tried to do a release build, it is popping up a spirit error for serialization(fails with or without mpi). Any ideas on a workaround or if this is a legit bug? The main error in the build output is: C:\apps\boost\boost_1_38_0\boost\spirit\home\classic\utility\impl\chset\range_run.ipp(142) (col. 21): internal error: 0_1504 compilation aborted for libs\serialization\src\xml_grammar.cpp Full output: bjam --with-mpi link=static release stage ...patience... ...found 1080 targets... ...updating 4 targets... compile-c-c++ bin.v2\libs\serialization\build\intel-win\release\link-static\thre ading-multi\xml_grammar.obj icl: command line remark #10010: option '/Op' is deprecated and will be removed in a future release. See '/help deprecated' xml_grammar.cpp Warning: This header is deprecated. Please use: boost/spirit/include/classic_rul e.hpp Warning: This header is deprecated. Please use: boost/spirit/include/classic_ope rators.hpp Warning: This header is deprecated. Please use: boost/spirit/include/classic_act ions.hpp Warning: This header is deprecated. Please use: boost/spirit/include/classic_num erics.hpp C:\apps\boost\boost_1_38_0\boost\spirit\home\classic\utility\impl\chset\range_ru n.ipp(142) (col. 21): internal error: 0_1504 compilation aborted for libs\serialization\src\xml_grammar.cpp (code 4) call "C:\apps\Intel\Compiler\11.0\066\cpp\bin\ia32\iclvars_ia32.bat" > nul icl @"bin.v2\libs\serialization\build\intel-win\release\link-static\threading-mu lti\xml_grammar.obj.rsp" ...failed compile-c-c++ bin.v2\libs\serialization\build\intel-win\release\link-s tatic\threading-multi\xml_grammar.obj... ...skipped <pbin.v2\libs\serialization\build\intel-win\release\link-static\threa ding-multi>libboost_serialization-iw-mt-1_38.lib for lack of <pbin.v2\libs\seria lization\build\intel-win\release\link-static\threading-multi>xml_grammar.obj... ...skipped <pstage\lib>libboost_serialization-iw-mt-1_38.lib for lack of <pbin.v 2\libs\serialization\build\intel-win\release\link-static\threading-multi>libboos t_serialization-iw-mt-1_38.lib... ...skipped <pstage\lib>libboost_serialization-iw-mt.lib for lack of <pstage\lib> libboost_serialization-iw-mt-1_38.lib... ...failed updating 1 target... ...skipped 3 targets...

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[shared_ptr] Is reference counting thread safe in boost 1.38
by dhruva 21 Feb '09

21 Feb '09

Hello, I am trying to replace a home grown shared pointer which uses expensive lock (mutex) to make the increment and decrement thread safe. I went through the boost code and see it uses atomic operations. I am not able to figure out if the following case is handled: 1. Thread 1 has a shared_ptr and hence the reference is 1 2. Thread 1 is in the process of decrementing the reference and thread 2 is in the process of incrementing the the reference 3. If thread 1 succeeds in decrementing, the reference will become 0 and hence 'destroy' will get called. 4. Can thread 2 increment after when thread 1 is in a call to destroy? The reference count variable is itself protected but is the call to destroy and reference count variable synchronized? -dhruva Add more friends to your messenger and enjoy! Go to http://messenger.yahoo.com/invite/

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ambigous bitshift operator for ubig64_t ?
by Ákos Maróy 21 Feb '09

21 Feb '09

Hi, I'm trying to compile the following code: #include <boost/spirit/home/support/detail/integer/endian.hpp> boost::integer::ubig64_t big_endian_value; big_endian_value >> 1; but I get: error: ambiguous overload for 'operator>>' in 'big_endian_value >> 1' note: candidates are: operator>>(long long unsigned int, int) <built-in> ../../usr/include/boost-1_38/boost/spirit/home/support/detail/integer/cover_operators.hpp:53: note: long long unsigned int boost::integer::operator>>(const boost::integer::endian<big, long long unsigned int, 64u, unaligned>&, long long unsigned int) what am I doing wrong? (BTW, the same works with the >>= operator) I'm doing this on Linux, gcc 4.1.2 Akos

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