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O'Reillly OSCON
by Robert Ramey 28 Jun '10

28 Jun '10

http://www.oscon.com/oscon2010 Are any boosters expecting to attend this conference and/or exhibition. Are their any who live in the area who might be interested but need a good reason to attend? Attending the exhibits only is free. Anyone who plans to visit and want's to undertake a mission for boost should contact me via private email at ramey at rrsd.com Robert Ramey

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Re: [Boost-users] building the boost documentation for reading off-line
by Paul A. Bristow 28 Jun '10

28 Jun '10

From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Sean Farrow Sent: Saturday, June 19, 2010 4:01 AM To: boost-users(a)lists.boost.org Subject: [Boost-users] building the boost documentation for reading off-line Importance: High Hi: Is there any way I can build the boost documentation to allow me to read this on a machine that is (90) percent of the time not connected to the internet. The pre-built pdf version of Boost docs at (for example) http://sourceforge.net/projects/boost/files/boost-docs/1.43.0/boost_pdf_1_4… might help you? Paul --- Paul A. Bristow Prizet Farmhouse Kendal, UK LA8 8AB +44 1539 561830, mobile +44 7714330204 pbristow(a)hetp.u-net.com

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Asio::Async_read_some - bytes_transferred=0!
by Lloyd 28 Jun '10

28 Jun '10

Hi, I am using async_read_some() to read data from a tcp connection. In the "async_read_some" handler, sometimes the "bytes_transferred" is zero, and also sometimes causes an error in the read handler called "The I/O operation has been aborted because of either a thread exit or an application request" What could be the reason? Is this an expected behavior? Thanks, Lloyd ______________________________________ Scanned and protected by Email scanner

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[boost][serialization] polymorphic classes - access violation
by Christoph Heindl 28 Jun '10

28 Jun '10

Hi, i see an 'access violation' in 'basic_iarchive_impl::load_pointer' at if(! tracking){ bpis_ptr->load_object_ptr(ar, t, co.file_version); } using boost 1.43.0 / msvc 9.0 with the following polymorphic scenario // base class for converters. contains empty serialization class converter; // invokes serialiazation of base through boost::serialization::base_object class int_converter : public converter; // invokes serialization of base and serialization of _converters // using include <boost/serialization/vector.hpp>, <boost/serialization/shared_ptr.hpp> class composite_converter : public converter { private: std::vector< boost::shared_ptr<converter const> > _converters; } Care as been taken that serialization code is generated in exactly one translation unit (BOOST_CLASS_EXPORT_KEY, BOOST_CLASS_EXPORT_IMPLEMENT). It seems that saving works out ok as you can see from the attached xml. Loading is performed through a base pointer to converter. I think a similar issue has already been reportet [1]. Without going into more details, is this issue being worked on/ known or resolved? Should I provide more details? Best regards, Christoph [1] http://permalink.gmane.org/gmane.comp.lib.boost.user/56195

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Boost.Test - how to print the value of a variable in case of error?
by Attila Feher F 28 Jun '10

28 Jun '10

Hi, I am testing "stuff" in a loop, and the "failure message" from Boost.Test is not too useful, because it does not tell me the "loop variable" value. I have hit this "problem" several times already, not only in loops, but any times a variable is involved in a tested expression. And I was not able to figure out what to do. I've looked at the sources etc., but I am too stupid to see if there is a solution in there. I haven't seen anything in the documentation. :( Imagine this: BOOST_CHECK_EQUAL(cont.erase(key),1u); If it fails, it tells me this: basics.cpp(61): error in "test_case": check cont.erase(key) == 1u failed [0 != 1] I cannot see the value of the 'key' variable, so it quite hard to know what that error is. In case of simple code, it may not be a problem to track down what key is, but when it is a loop of over 100000 iterations... :( ..._CHECKPOINT does not work, because it is only printed in case of an exception, but not other failures. :( I was hoping to find something like: BOOST_CHECK_EQUAL_WITH(cont.erase(key),1u, (key) ); which would say: basics.cpp(61): error in "test_case": check cont.erase(key) == 1u failed [0 != 1] with key == 12 Is there a way I could do that? I have tried to ask in #BOOST on IRC, but it seems there are only bots there. :( TIA, Attila

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Boost.PP: maximum length of a preprocessor macro, of PP
by Hicham Mouline 27 Jun '10

27 Jun '10

Hello I assign the list of all directories the names of which starts with a pattern like pattern_.... to a cmake variable which I then pass as a preprocessor macro: FILE(GLOB MYPROJECT_LIST_SYSTEMS RELATIVE ${CMAKE_SOURCE_DIR} system_*) MYPROJECT_LIST_SYSTEMS is then a cmake "list", a string with semicolon separators. I will then define a preprocessor macro MYPROJECT_LIST_SYSTEMS with the same contents. 1. What is the maximum length of a preprocessor macro (g++4.4, msvc2008/10)? 2. I will create in a source file a list of class instances all with the same names in the passed macro. I reckon I can use a PP sequence, list, tuple or array. Is there any max length here? What is the fastest way in terms of PP time? Regards,

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[Serialization] Restoring from text archive compile error
by Dante Stroe 27 Jun '10

27 Jun '10

Hello, I am currently trying to serialize the classes of a project I am working on, but I ran into a few compliation errors and I am kind of stuck, so I was hoping somebody here could help me on that. I am using the 1.43 version of the boost library and gcc 4.4.1. (I'd like to add that all the examples in and tutorials from the documentation work fine for me). I am trying to serialize a base class called "base" and it's derived class called "de" that use a shared pointer, and afterwards test my implementation by saving the an instance of a "de" object into a text archive and then restoring it. These is the serialization implementation for my two classes for reference: ---"base.h"----- #include<iostream> #include<string> #include<typeinfo> #include "../config.h" #include "../population.h" #include "../rng.h" #include<boost/shared_ptr.hpp> #include<boost/archive/text_iarchive.hpp> #include<boost/archive/text_oarchive.hpp> #include<boost/serialization/version.hpp> #include<boost/serialization/base_object.hpp> namespace pagmo { namespace algorithm { /// Base algorithm class. class base; /// Alias for shared pointer to base algorithm. typedef boost::shared_ptr<base> base_ptr; /// Base algorithm class. class __PAGMO_VISIBLE base { public: base(); /// Evolve method. virtual void evolve(population&p) const = 0; /// Clone method. virtual base_ptr clone() const = 0; virtual ~base(); std::string human_readable() const; virtual std::string get_name() const; virtual bool is_blocking() const; protected: virtual std::string human_readable_extra() const; protected: /// Random number generator for double-precision floating point values. mutable rng_double m_drng; /// Random number generator for unsigned integer values. mutable rng_uint32 m_urng; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive&ar, const unsigned int version){ std::cout<< "Serializing base algorithm"<< version<< std::endl; } }; }} //namespaces std::ostream __PAGMO_VISIBLE_FUNC&operator<<(std::ostream&, const base&); -------------------- --------"de.h"------ #include<string> #include "../config.h" #include "../population.h" #include "base.h" #include<boost/serialization/base_object.hpp> namespace pagmo { namespace algorithm { class __PAGMO_VISIBLE de: public base { public: de(int, const double& = 0.8, const double& = 0.9, int = 2); base_ptr clone() const; void evolve(population&) const; std::string get_name() const; protected: std::string human_readable_extra() const; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive&ar, const unsigned int version){ std::cout<< "Serializing de algorithm"<< version<< std::endl;; ar& boost::serialization::base_object<base>(*this); ar& m_gen; ar& m_f; ar& m_cr; ar& m_strategy; } const int m_gen; const double m_f; const double m_cr; const int m_strategy; }; }} //namespaces ------------------------------ Saving works fine (and as far as I can tell, based on the documentation examples the information is saved correctly in the text archive). This is the program that I am using to save and restore from archive: ----test_serialzazion.cpp----- #include<algorithm> #include<boost/typeof/typeof.hpp> #include<boost/utility/result_of.hpp> #include<cmath> #include<numeric> #include<string> #include<vector> #include "../src/pagmo.h" #include<cstdlib> #include<iostream> #include<fstream> #include<boost/archive/text_iarchive.hpp> #include<boost/archive/text_oarchive.hpp> using namespace pagmo; void save(const algorithm::de&alg, const char* filename) { std::ofstream ofs( filename ); boost::archive::text_oarchive oa( ofs ); oa<< alg; } void restore(algorithm::de& alg, const char* filename) { std::ifstream ifs( filename ); boost::archive::text_iarchive ia( ifs ); ia>> alg; } int main() { algorithm::de de = algorithm::de(500,.8,.8,2); std::cout<< "Testing algorithm:"<< de<< '\n'; std::string fileName = "test.txt"; save(de, fileName.c_str()); return 0; } ------------------ However, adding the restore function to restore the object back from the text archive results in the following compilation errors: In file included from /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:91, from /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:22, from /home/dante/pagmo/external_headers/boost/archive/detail/common_iarchive.hpp:23, from /home/dante/pagmo/external_headers/boost/archive/basic_text_iarchive.hpp:31, from /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:24, from /home/dante/pagmo/tests/../src/algorithm/base.h:36, from /home/dante/pagmo/tests/../src/algorithms.h:31, from /home/dante/pagmo/tests/../src/pagmo.h:30, from /home/dante/pagmo/tests/test_serialization.cpp:34: /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp: In function ‘void boost::archive::detail::check_const_loading() [with T = const int]’: /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:571: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const int]’ /home/dante/pagmo/external_headers/boost/archive/detail/common_iarchive.hpp:68: instantiated from ‘void boost::archive::detail::common_iarchive<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/basic_text_iarchive.hpp:67: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:71: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:60: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:67: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/tests/../src/algorithm/de.h:80: instantiated from ‘void pagmo::algorithm::de::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/serialization/access.hpp:118: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:74: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:133: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:182: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/tests/test_serialization.cpp:89: instantiated from here /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp:162: error: invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp:162: error: invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp: In function ‘void boost::archive::detail::check_const_loading() [with T = const double]’: /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:571: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const double]’ /home/dante/pagmo/external_headers/boost/archive/detail/common_iarchive.hpp:68: instantiated from ‘void boost::archive::detail::common_iarchive<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/basic_text_iarchive.hpp:67: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:71: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:60: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:67: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/tests/../src/algorithm/de.h:81: instantiated from ‘void pagmo::algorithm::de::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/serialization/access.hpp:118: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:74: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:133: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:182: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/tests/test_serialization.cpp:89: instantiated from here /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp:162: error: invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ /home/dante/pagmo/external_headers/boost/archive/detail/check.hpp:162: error: invalid application of ‘sizeof’ to incomplete type ‘boost::STATIC_ASSERTION_FAILURE<false>’ In file included from /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:23, from /home/dante/pagmo/tests/../src/algorithm/base.h:36, from /home/dante/pagmo/tests/../src/algorithms.h:31, from /home/dante/pagmo/tests/../src/pagmo.h:30, from /home/dante/pagmo/tests/test_serialization.cpp:34: /home/dante/pagmo/external_headers/boost/archive/basic_text_iprimitive.hpp: In member function ‘void boost::archive::basic_text_iprimitive<IStream>::load(T&) [with T = const int, IStream = std::basic_istream<char, std::char_traits<char> >]’: /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:52: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load(T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:107: instantiated from ‘static void boost::archive::load_access::load_primitive(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const int]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:356: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive>::load_primitive::invoke(Archive&, T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:433: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive>::invoke(Archive&, T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:586: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const int]’ /home/dante/pagmo/external_headers/boost/archive/detail/common_iarchive.hpp:68: instantiated from ‘void boost::archive::detail::common_iarchive<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/basic_text_iarchive.hpp:67: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:71: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:60: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:67: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = const int, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/tests/../src/algorithm/de.h:80: instantiated from ‘void pagmo::algorithm::de::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/serialization/access.hpp:118: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:74: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:133: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:182: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/tests/test_serialization.cpp:89: instantiated from here /home/dante/pagmo/external_headers/boost/archive/basic_text_iprimitive.hpp:88: error: ambiguous overload for ‘operator>>’ in ‘((boost::archive::basic_text_iprimitive<std::basic_istream<char, std::char_traits<char> > >*)this)->boost::archive::basic_text_iprimitive<std::basic_istream<char, std::char_traits<char> > >::is>> t’ /usr/include/c++/4.4/istream:119: note: candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>& (*)(std::basic_istream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]<near match> /usr/include/c++/4.4/istream:123: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_ios<_CharT, _Traits>& (*)(std::basic_ios<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>]<near match> /usr/include/c++/4.4/istream:130: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>]<near match> /usr/include/c++/4.4/istream:238: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char, _Traits = std::char_traits<char>]<near match> /home/dante/pagmo/external_headers/boost/archive/basic_text_iprimitive.hpp: In member function ‘void boost::archive::basic_text_iprimitive<IStream>::load(T&) [with T = const double, IStream = std::basic_istream<char, std::char_traits<char> >]’: /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:52: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load(T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:107: instantiated from ‘static void boost::archive::load_access::load_primitive(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const double]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:356: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive>::load_primitive::invoke(Archive&, T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:433: instantiated from ‘static void boost::archive::detail::load_non_pointer_type<Archive>::invoke(Archive&, T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:586: instantiated from ‘void boost::archive::load(Archive&, T&) [with Archive = boost::archive::text_iarchive, T = const double]’ /home/dante/pagmo/external_headers/boost/archive/detail/common_iarchive.hpp:68: instantiated from ‘void boost::archive::detail::common_iarchive<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/basic_text_iarchive.hpp:67: instantiated from ‘void boost::archive::basic_text_iarchive<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/text_iarchive.hpp:71: instantiated from ‘void boost::archive::text_iarchive_impl<Archive>::load_override(T&, int) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:60: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/archive/detail/interface_iarchive.hpp:67: instantiated from ‘Archive& boost::archive::detail::interface_iarchive<Archive>::operator&(T&) [with T = const double, Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/tests/../src/algorithm/de.h:81: instantiated from ‘void pagmo::algorithm::de::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]’ /home/dante/pagmo/external_headers/boost/serialization/access.hpp:118: instantiated from ‘static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:74: instantiated from ‘void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/serialization/serialization.hpp:133: instantiated from ‘void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/external_headers/boost/archive/detail/iserializer.hpp:182: instantiated from ‘void boost::archive::detail::iserializer<Archive, T>::load_object_data(boost::archive::detail::basic_iarchive&, void*, unsigned int) const [with Archive = boost::archive::text_iarchive, T = pagmo::algorithm::de]’ /home/dante/pagmo/tests/test_serialization.cpp:89: instantiated from here /home/dante/pagmo/external_headers/boost/archive/basic_text_iprimitive.hpp:88: error: no match for ‘operator>>’ in ‘((boost::archive::basic_text_iprimitive<std::basic_istream<char, std::char_traits<char> > >*)this)->boost::archive::basic_text_iprimitive<std::basic_istream<char, std::char_traits<char> > >::is>> t’ /usr/include/c++/4.4/istream:119: note: candidates are: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>& (*)(std::basic_istream<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:123: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_ios<_CharT, _Traits>& (*)(std::basic_ios<_CharT, _Traits>&)) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:130: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:166: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:170: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:173: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:177: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:180: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:184: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:188: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:193: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:197: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:202: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:206: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:210: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:214: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char, _Traits = std::char_traits<char>] /usr/include/c++/4.4/istream:238: note: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_streambuf<_CharT, _Traits>*) [with _CharT = char, _Traits = std::char_traits<char>] Any Ideea of what I am doing wrong or what am I missing? Thank you and sorry for the trouble. Best regards, Dante Stroe

3 6

[Interprocess] Shared Memory Bus Error
by Matt Cupp 27 Jun '10

27 Jun '10

Hi, I apologize if this is bad etiquette, but I posted this first on StackOverflow at: http://stackoverflow.com/questions/3103255/boostinterprocess-shared-memory-… I'm using CentOS 5.4 x86_64 and Boost 1.42.0 on a cluster that uses Open-MPI 1.3.3. I'm writing a shared library that uses shared memory to store large amounts of data for multiple processes to use. There's also a loader application that will read in the data from the files and load them into the shared memory. When I run the loader application, it determines the amount of memory that it needs to store the data exactly then adds 25% for overhead. For just about every file, it'll be over 2 gigs worth of data. When I make the memory request using Boost.Interprocess, it says it has successfully reserved the requested amount of memory. But when I use start to use it, I get a "Bus error". From what I can tell, the bus error is a result of accessing memory outside the range that is available for the memory segment. So I started looking into how the shared memory is on Linux and what to check to make sure my system is correctly configured to allow that large amount of shared memory. 1. I looked at the "files" at /proc/sys/kernel/shm*: - shmall - 4294967296 (4 Gb) - shmmax - 68719476736 (68 Gb) - shmmni - 4096 2. I called the ipcs -lm command: ------ Shared Memory Limits -------- max number of segments = 4096 max seg size (kbytes) = 67108864 max total shared memory (kbytes) = 17179869184 min seg size (bytes) = 1 >From what I can tell, those settings indicate that I should be able to allocate enough shared memory for my purposes. So I created a stripped down program that created large amounts of data in shared memory: #include <iostream> #include <boost/interprocess/managed_shared_memory.hpp> #include <boost/interprocess/allocators/allocator.hpp> #include <boost/interprocess/containers/vector.hpp> namespace bip = boost::interprocess; typedef bip::managed_shared_memory::segment_manager segment_manager_t; typedef bip::allocator<long, segment_manager_t> long_allocator; typedef bip::vector<long, long_allocator> long_vector; int main(int argc, char ** argv) { struct shm_remove { shm_remove() { bip::shared_memory_object::remove("ShmTest"); } ~shm_remove() { bip::shared_memory_object::remove("ShmTest"); } } remover; size_t szLength = 280000000; size_t szRequired = szLength * sizeof(long); size_t szRequested = (size_t) (szRequired * 1.05); bip::managed_shared_memory segment(bip::create_only, "ShmTest", szRequested); std::cout << "Length: " << szLength << "\n" << "sizeof(long): " << sizeof(long) << "\n" << "Required: " << szRequired << "\n" << "Requested: " << szRequested << "\n" << "Allocated: " << segment.get_size() << "\n" << "Overhead: " << segment.get_size() - segment.get_free_memory() << "\n" << "Free: " << segment.get_free_memory() << "\n\n"; long_allocator alloc(segment.get_segment_manager()); long_vector vector(alloc); if (argc > 1) { std::cout << "Reserving Length of " << szLength << "\n"; vector.reserve(szLength); std::cout << "Vector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n\n"; } for (size_t i = 0; i < szLength; i++) { if ((i % (szLength / 100)) == 0) { std::cout << i << ": " << "\tVector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n"; } vector.push_back(i); } std::cout << "end: " << "\tVector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n"; return 0; } Hi, I'm using CentOS 5.4 x86_64 and Boost 1.42.0 on a cluster that uses Open-MPI 1.3.3. I'm writing a shared library that uses shared memory to store large amounts of data for multiple processes to use. There's also a loader application that will read in the data from the files and load them into the shared memory. When I run the loader application, it determines the amount of memory that it needs to store the data exactly then adds 25% for overhead. For just about every file, it'll be over 2 gigs worth of data. When I make the memory request using Boost's Interprocess library, it says it has successfully reserved the requested amount of memory. But when I use start to use it, I get a "Bus error". From what I can tell, the bus error is a result of accessing memory outside the range that is available for the memory segment. So I started looking into how the shared memory is on Linux and what to check to make sure my system is correctly configured to allow that large amount of shared memory. 1. I looked at the "files" at /proc/sys/kernel/shm*: - shmall - 4294967296 (4 Gb) - shmmax - 68719476736 (68 Gb) - shmmni - 4096 2. I called the ipcs -lm command: ------ Shared Memory Limits -------- max number of segments = 4096 max seg size (kbytes) = 67108864 max total shared memory (kbytes) = 17179869184 min seg size (bytes) = 1 >From what I can tell, those settings indicate that I should be able to allocate enough shared memory for my purposes. So I created a stripped down program that created large amounts of data in shared memory: #include <iostream> #include <boost/interprocess/managed_shared_memory.hpp> #include <boost/interprocess/allocators/allocator.hpp> #include <boost/interprocess/containers/vector.hpp> namespace bip = boost::interprocess; typedef bip::managed_shared_memory::segment_manager segment_manager_t; typedef bip::allocator<long, segment_manager_t> long_allocator; typedef bip::vector<long, long_allocator> long_vector; int main(int argc, char ** argv) { struct shm_remove { shm_remove() { bip::shared_memory_object::remove("ShmTest"); } ~shm_remove() { bip::shared_memory_object::remove("ShmTest"); } } remover; size_t szLength = 280000000; size_t szRequired = szLength * sizeof(long); size_t szRequested = (size_t) (szRequired * 1.05); bip::managed_shared_memory segment(bip::create_only, "ShmTest", szRequested); std::cout << "Length: " << szLength << "\n" << "sizeof(long): " << sizeof(long) << "\n" << "Required: " << szRequired << "\n" << "Requested: " << szRequested << "\n" << "Allocated: " << segment.get_size() << "\n" << "Overhead: " << segment.get_size() - segment.get_free_memory() << "\n" << "Free: " << segment.get_free_memory() << "\n\n"; long_allocator alloc(segment.get_segment_manager()); long_vector vector(alloc); if (argc > 1) { std::cout << "Reserving Length of " << szLength << "\n"; vector.reserve(szLength); std::cout << "Vector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n\n"; } for (size_t i = 0; i < szLength; i++) { if ((i % (szLength / 100)) == 0) { std::cout << i << ": " << "\tVector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n"; } vector.push_back(i); } std::cout << "end: " << "\tVector Capacity: " << vector.capacity() << "\tFree: " << segment.get_free_memory() << "\n"; return 0; } Compiled it with the line: g++ ShmTest.cpp -lboost_system -lrt Then ran it with the following output (edited to make it smaller): Length: 280000000 sizeof(long): 8 Required: 2240000000 Requested: 2352000000 Allocated: 2352000000 Overhead: 224 Free: 2351999776 0: Vector Capacity: 0 Free: 2351999776 2800000: Vector Capacity: 3343205 Free: 2325254128 5600000: Vector Capacity: 8558607 Free: 2283530912 8400000: Vector Capacity: 8558607 Free: 2283530912 11200000: Vector Capacity: 13693771 Free: 2242449600 14000000: Vector Capacity: 21910035 Free: 2176719488 ... 19600000: Vector Capacity: 21910035 Free: 2176719488 22400000: Vector Capacity: 35056057 Free: 2071551312 ... 33600000: Vector Capacity: 35056057 Free: 2071551312 36400000: Vector Capacity: 56089691 Free: 1903282240 ... 56000000: Vector Capacity: 56089691 Free: 1903282240 58800000: Vector Capacity: 89743507 Free: 1634051712 ... 89600000: Vector Capacity: 89743507 Free: 1634051712 92400000: Vector Capacity: 143589611 Free: 1203282880 ... 142800000: Vector Capacity: 143589611 Free: 1203282880 145600000: Vector Capacity: 215384417 Free: 628924432 ... 212800000: Vector Capacity: 215384417 Free: 628924432 215600000: Vector Capacity: 293999969 Free: 16 ... 260400000: Vector Capacity: 293999969 Free: 16 Bus error If you run the program with the a parameter (any will work, just need to increase the argc), it preallocate the vector but will still result in a bus error at the same array index. I checked the size of the "files" at /dev/shm using the ls -ash /dev/shmcommand: total 2.0G 0 . 0 .. 2.0G ShmTest And just like with my original application it the size of the allocated shared memory is capped at 2 gigs. Given that it "successfully" allocated 2352000000 bytes of memory, in gigabytes (using 1024*1024*1024) it should be 2.19 Gb. When I run my actual program to load data using MPI, I get this error output: Requested: 2808771120 Recieved: 2808771120 [c1-master:13894] *** Process received signal *** [c1-master:13894] Signal: Bus error (7) [c1-master:13894] Signal code: (2) [c1-master:13894] Failing at address: 0x2b3190157000 [c1-master:13894] [ 0] /lib64/libpthread.so.0 [0x3a64e0e7c0] [c1-master:13894] [ 1] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost12interprocess26uninitialized_copy_or_moveINS0_10offset_ptrIlEEPlEET0_T_S6_S5_PNS_10disable_ifINS0_11move_detail16is_move_iteratorIS6_EEvE4typeE+0x218) [0x2b310dcf3fb8] [c1-master:13894] [ 2] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost9container6vectorIlNS_12interprocess9allocatorIlNS2_15segment_managerIcNS2_15rbtree_best_fitINS2_12mutex_familyENS2_10offset_ptrIvEELm0EEENS2_10iset_indexEEEEEE15priv_assign_auxINS7_IlEEEEvT_SG_St20forward_iterator_tag+0xa75) [0x2b310dd0a335] [c1-master:13894] [ 3] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost9container17containers_detail25advanced_insert_aux_proxyINS0_6vectorIlNS_12interprocess9allocatorIlNS4_15segment_managerIcNS4_15rbtree_best_fitINS4_12mutex_familyENS4_10offset_ptrIvEELm0EEENS4_10iset_indexEEEEEEENS0_17constant_iteratorISF_lEEPSF_E25uninitialized_copy_all_toESI_+0x1d7) [0x2b310dd0b817] [c1-master:13894] [ 4] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost9container6vectorINS1_IlNS_12interprocess9allocatorIlNS2_15segment_managerIcNS2_15rbtree_best_fitINS2_12mutex_familyENS2_10offset_ptrIvEELm0EEENS2_10iset_indexEEEEEEENS3_ISD_SB_EEE17priv_range_insertENS7_ISD_EEmRNS0_17containers_detail23advanced_insert_aux_intISD_PSD_EE+0x771) [0x2b310dd0d521] [c1-master:13894] [ 5] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost12interprocess6detail8Ctor3ArgINS_9container6vectorINS4_IlNS0_9allocatorIlNS0_15segment_managerIcNS0_15rbtree_best_fitINS0_12mutex_familyENS0_10offset_ptrIvEELm0EEENS0_10iset_indexEEEEEEENS5_ISF_SD_EEEELb0EiSF_NS5_IvSD_EEE11construct_nEPvmRm+0x157) [0x2b310dd0d9a7] [c1-master:13894] [ 6] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost12interprocess15segment_managerIcNS0_15rbtree_best_fitINS0_12mutex_familyENS0_10offset_ptrIvEELm0EEENS0_10iset_indexEE28priv_generic_named_constructIcEEPvmPKT_mbbRNS0_6detail18in_place_interfaceERNS7_INSE_12index_configISB_S6_EEEENSE_5bool_ILb1EEE+0x6fd) [0x2b310dd0c85d] [c1-master:13894] [ 7] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN5boost12interprocess15segment_managerIcNS0_15rbtree_best_fitINS0_12mutex_familyENS0_10offset_ptrIvEELm0EEENS0_10iset_indexEE22priv_generic_constructEPKcmbbRNS0_6detail18in_place_interfaceE+0xf8) [0x2b310dd0dd58] [c1-master:13894] [ 8] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN7POP_LTL16ExportPopulation22InitializeSharedMemoryEPKc+0x1609) [0x2b310dceea99] [c1-master:13894] [ 9] ../LookupPopulationLib/Release/libLookupPopulation.so(_ZN7POP_LTL10InitializeEPKc+0x349) [0x2b310dd0ebb9] [c1-master:13894] [10] MPI_Release/LookupPopulation.MpiLoader(main+0x372) [0x4205d2] [c1-master:13894] [11] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3a6461d994] [c1-master:13894] [12] MPI_Release/LookupPopulation.MpiLoader(__gxx_personality_v0+0x239) [0x420009] [c1-master:13894] *** End of error message *** -------------------------------------------------------------------------- mpirun noticed that process rank 0 with PID 13894 on node c1-master exited on signal 7 (Bus error). -------------------------------------------------------------------------- I'm really not sure where to go with this. Does anyone have any suggestions of what to try? Thank you! Matt Cupp

2 1

Making boost.bind take more arguments
by Clark Gaebel 26 Jun '10

26 Jun '10

I need Boost.Bind to take up to 12 arguments (right now it only goes up to 10). How? (before you criticize me for "too many arguments", this is in auto-generated code. So shush ;) ) Thanks, -- Clark

2 1

[numeric bindings] How to compile/use?
by Marco Guazzone 26 Jun '10

26 Jun '10

Hello, I'm trying to use the SVN version of boost::numeric::binding, but I get several errors during compilation. The majority of these errors are related to the presence of names prefixed with the dollar '$' sign. For instance: /home/marco/boost-numeric_bindings/boost/numeric/bindings/lapack/auxiliary/larfb.hpp:171:32: warning: '$' in identifier or number /home/marco/boost-numeric_bindings/boost/numeric/bindings/lapack/auxiliary/larfb.hpp:230: error: ‘$TYPES’ has not been declared /home/marco/boost-numeric_bindings/boost/numeric/bindings/lapack/auxiliary/larfb.hpp:231: error: ‘$ARGUMENTS’ was not declared in this scope I've found that these variables are used in some Python scripts under libs/boost/numeric/bindings/tools but I don't know how to use them. So what can I do for successfully using this library? Thank very much!! Best, -- Marco

1 0