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Re: [Boost-users] 2007 Boost Conference is Next Week!
by Gennadiy Rozental 11 May '07

11 May '07

Looks like I am going to be driving to/from Aspen from/to Denver. Does anyone is interested to join? Gennadiy P.S. Beman mentioned wiki maybe a good idea - any luck?

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[asio][msvc-8_0] compilation failed on example
by JD 11 May '07

11 May '07

Hi, I've been trying to use Boost.Asio in a project and compilation failed with VC 8.0. Compiler complains that unary operator! that should be member of asio::error is not defined. I tried to compile lib/asio/example/http/client/ from CVS HEAD and got another compile issue: ..\..\..\..\..\boost/asio/ip/unicast.hpp(62) : error C2065: 'IPV6_UNICAST_HOPS': undeclared identifier Is there known compile issue with asio? Thanks for your help. JD

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Building a project using boost with Visual Studio 2005
by storri＠torri.org 11 May '07

11 May '07

Are there any special compiler flags that I need to use to build a C++ project using boost with Visual Studio 2005? I am getting a C2220 compiler error that an object cannot be created: 1>------ Build started: Project: data_containers, Configuration: Debug Win32 ------ 1>Compiling... 1>Memory_Map.cpp 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : error C2220: warning treated as error - no 'object' file generated 1> C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(54) : see reference to class template instantiation 'boost::io::detail::group4<T1,T2,T3,T4>' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> .\Memory_Map.cpp(341) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : warning C4512: 'boost::io::detail::group4<T1,T2,T3,T4>' : assignment operator could not be generated 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(103) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(150) : see reference to function template instantiation 'void boost::io::detail::put_last<char,std::char_traits<char>,boost::io::detail::group4<T1,T2,T3,T4>>(std::basic_ostream<_Elem,_Traits> &,const boost::io::detail::group1<boost::io::detail::group4<T1,T2,T3,T4>> &)' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t &, 1> _Elem=char, 1> _Traits=std::char_traits<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(242) : see reference to function template instantiation 'void boost::io::detail::put<Ch,Tr,Alloc,T>(T,const boost::io::detail::format_item<Ch,Tr,Alloc> &,std::basic_string<_Elem,_Traits,_Ax> &,boost::io::basic_altstringbuf<Ch,Tr,Alloc> &,boost::io::detail::locale_t *)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> &, 1> _Elem=char, 1> _Traits=std::char_traits<char>, 1> _Ax=std::allocator<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(251) : see reference to function template instantiation 'void boost::io::detail::distribute<Ch,Tr,Alloc,T>(boost::basic_format<Ch> &,T)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/format_class.hpp(64) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::io::detail::feed<char,Tr,Alloc,const T&>(boost::basic_format<Ch> &,const boost::io::detail::group1<T1>)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>>, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1> .\Memory_Map.cpp(341) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::basic_format<Ch>::operator %<boost::io::detail::group1<T1>>(const T &)' being compiled 1> with 1> [ 1> Ch=char, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> 1> ]

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Visual Studio 2005 unable to generate assignment operator
by storri＠torri.org 11 May '07

11 May '07

Is this error report indicating that I have a problem in my use of boost or my code? Here is the statement that its trying to compile: output << boost::format("%1X") % boost::io::group ( std::hex, std::setw(2), std::setfill('0'), static_cast<boost::uint16_t>(m_data[(*pos).second])); m_data is defined as: // !\brief This type represents a byte typedef boost::uint8_t data_t; // !\brief The internal data structure of a Memory Map typedef std::vector <data_t> Values_t; data_types::Memory_Map::Values_t m_data; pos is a data_types::Memory_Map::Address_Map_t::const_iterator that is defined as: // !\brief Map key is a 32-bit address in memory typedef boost::uint32_t map_key_t; // !\brief index where the data is in the Values_t list typedef boost::uint32_t index_t; // !\brief Table use for normal lookups ( address => index ) typedef std::map<map_key_t, index_t> Address_Map_t; Please forgive my ignorance here of Visual Studio. I have read up the microsoft explaination of this error but I have trouble understanding where to start looking. I do not have any constant data members in my code for the Memory_Map class. Therefore I am not sure why I am getting this error. Stephen ------ Build started: Project: data_containers, Configuration: Debug Win32 ------ 1>Compiling... 1>Memory_Map.cpp 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(124) : warning C4512: 'boost::io::detail::group4<T1,T2,T3,T4>' : assignment operator could not be generated 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(54) : see reference to class template instantiation 'boost::io::detail::group4<T1,T2,T3,T4>' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t & 1> ] 1> .\Memory_Map.cpp(341) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1>C:\Program Files\boost\boost_1_33_1\boost/format/group.hpp(58) : warning C4512: 'boost::io::detail::group1<T1>' : assignment operator could not be generated 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(103) : see reference to class template instantiation 'boost::io::detail::group1<T1>' being compiled 1> with 1> [ 1> T1=const boost::uint16_t & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(150) : see reference to function template instantiation 'void boost::io::detail::put_last<char,std::char_traits<char>,boost::io::detail::group4<T1,T2,T3,T4>>(std::basic_ostream<_Elem,_Traits> &,const boost::io::detail::group1<boost::io::detail::group4<T1,T2,T3,T4>> &)' being compiled 1> with 1> [ 1> T1=std::ios_base &(__cdecl *)(std::ios_base &), 1> T2=std::_Smanip<std::ios_base::fmtflags>, 1> T3=std::_Fillobj<char>, 1> T4=const boost::uint16_t &, 1> _Elem=char, 1> _Traits=std::char_traits<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(242) : see reference to function template instantiation 'void boost::io::detail::put<Ch,Tr,Alloc,T>(T,const boost::io::detail::format_item<Ch,Tr,Alloc> &,std::basic_string<_Elem,_Traits,_Ax> &,boost::io::basic_altstringbuf<Ch,Tr,Alloc> &,boost::io::detail::locale_t *)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> &, 1> _Elem=char, 1> _Traits=std::char_traits<char>, 1> _Ax=std::allocator<char> 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/feed_args.hpp(251) : see reference to function template instantiation 'void boost::io::detail::distribute<Ch,Tr,Alloc,T>(boost::basic_format<Ch> &,T)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=const boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> & 1> ] 1> C:\Program Files\boost\boost_1_33_1\boost/format/format_class.hpp(64) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::io::detail::feed<char,Tr,Alloc,const T&>(boost::basic_format<Ch> &,const boost::io::detail::group1<T1>)' being compiled 1> with 1> [ 1> Ch=char, 1> Tr=std::char_traits<char>, 1> Alloc=std::allocator<char>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>>, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &> 1> ] 1> .\Memory_Map.cpp(341) : see reference to function template instantiation 'boost::basic_format<Ch> &boost::basic_format<Ch>::operator %<boost::io::detail::group1<T1>>(const T &)' being compiled 1> with 1> [ 1> Ch=char, 1> T1=boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>, 1> T=boost::io::detail::group1<boost::io::detail::group4<std::ios_base &(__cdecl *)(std::ios_base &),std::_Smanip<std::ios_base::fmtflags>,std::_Fillobj<char>,const boost::uint16_t &>> 1> ]

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[1.34.0] Release Candidate 3
by Thomas Witt 11 May '07

11 May '07

Hi, 1.34.0 release candidate 3 is now available from: http://www.boost.org/release/. It contains a number of doc changes. Toolset version auto detection with msvc. And a fix for missing files in the install (bjam install). Please give it a try and report any problems to the developer list or directly to me. Unless it's broken in a major way it'll be released unchanged on Saturday May 12. Thanks Thomas -- Thomas Witt witt(a)acm.org

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How to specify the bjam's --libdir and --includedir in user-config.jam
by elviin 11 May '07

11 May '07

Hello, instead of writing: bjam --libdir=/../parallel/dev/lib/boost/ --includedir=/../parallel/dev/include/boost/ install i would like to specify those paths in the ~/user-config.jam. Thank you. Elviin

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MinGW binary installer for Boost?
by John Pye 11 May '07

11 May '07

Hi all, Is there such a thing as a binary for Boost under MinGW? As far as I can tell, the correct way to get started with Boost on MinGW is to download the .EXE installer, unpack to c:\Boost, then run bjam "-sMINGW_ROOT_DIRECTORY=c:\MinGW" "-sTOOLS=mingw" install I found that this didn't install the libraries where I expected, however. I found this comment: http://www.mpi-inf.mpg.de/~dfischer/manual/manual_topic38.html#topic41 which says that I have to do a bunch of manual file moving/renaming. Is that right? Really? There must be a better way, surely? Please let me know if I'm missing something, or if there is a better way to get started with Boost under MinGW/MSYS. Cheers JP

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boost::ptr_vector with const members
by Josh Quigley 10 May '07

10 May '07

Hello, I'm trying to use boost::ptr_vector with constant members, like // Excerpt 1 boost::ptr_vector<const int> myVector; myVector.push_back(new int(5)); //This line fails, see comment below myVector[1] = 7; //This should fail, can't assign to const I can do the following with boost::shared_ptr, which is the effect I'm trying to achieve with the above // Except 2 boost::shared_ptr<const int> intPtr(new int(5)); intPtr* = 7; //This won't compile, can't assign to const Returning to excerpt 1, the second line fails, and I don't know why. It causes an error deep within the bowels of the boost. I've tried many permutations placing const in different places, with no luck. Any help or suggestions greatly appreciated! Cheers, Josh Quigley.

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[boost 1.34 beta] MSVC 8 installation issue
by Ovanes Markarian 10 May '07

10 May '07

Dear boosters! I have a problem installing boost libraries as a relative path to project's include directories. MSVC has 2 options to install libraries: - globally for every C++ project - locally for a single project (specified in project settings) My intention is to install Boost locally, since this way any other developer is able to check-out the project from the source control system and without setting paths or global directories in MSVC start using the project. I have successfully compiled boost libs and copied include and lib directories into the proper place. Afterwards I tried to include <boost/variant/variant.hpp> file. Preprocessor found it and included correctly, but I receive an error from another file: [Some_path]\thirdparty\include\boost\variant\detail\config.hpp(16) : fatal error C1083: Cannot open include file: 'boost/config.hpp': No such file or directory There is really no such file in the include/boost directory. Did the installation fail or do I miss smth. include and lib directories are taken after passing the install paramenter to the bjam executable. Many thanks, Ovanes

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Smart pointers
by Olivier Tournaire 10 May '07

10 May '07

Hi all Suppose I have two classes A and B like those ones : class A { // ... B *m_b; }; class B { // ... std::vector<A *> m_a; }; m_b is used to know who is the parent of the object. I would like to use smart pointers. How can I do this ? Thanks in advance -- Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des noyaux. Courage.

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