December 2010 - Boost-users

boost::filesystem without calls to Wide string versions of the win32 API
by teajay 13 Dec '10

13 Dec '10

Hello, I'm currently porting a part of code to a "smaller" version of windows which runs on a real time os. The Os provides most of the windows 32 API functions but only in the "A" variant ( using only standard characters). I got everything compiled fine up to the linker step, where the linker doesn't find the wide string versions of the API calls. Is there some way to deactivate the wide string windows API in boost::filesystem V3 ? Thanks for the help. Regards, Thomas Bernard

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boost::filesystem path problem under WINDOWS
by avanindra singh 13 Dec '10

13 Dec '10

Hi, Here is the code snippet I am using under windows in VS2008. #define BOOST_WINDOWS_PATH #define BOOST_WINDOWS_API #include "stdafx.h" #include <boost/filesystem/operations.hpp> #include <boost/filesystem/fstream.hpp> #include <iostream> #include "string" #include "conio.h" #include "vector" using namespace std; using namespace boost::filesystem; int _tmain(int argc, _TCHAR* argv[]) { string _path = "E:\\doggy"; path dir_path(_path.c_str()); vector< pair<string,bool> > _file_jpeg_pair; string full_list_path = _path+"\\" + "list.txt"; string bundle_path_str = _path+"\\" + "bundle"; path bundle_path(_path.c_str()); //creating bundle directory cout<<bundle_path<<endl; //if( !exists( bundle_path ) ) create_directory(bundle_path); cout<<"directory created "<<endl; getch(); return 0; } This code is giving run time unhandled exception, so for that matter any other call of boost filesystem. Strange thing is the Windows path E:\doggy is being printed as E:/doggy, seems like the path is getting converted to POSIX format. Can anyone please help me here?... Thanks Avanindra

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What is C++02?
by Robert Jones 13 Dec '10

13 Dec '10

Can someone confirm some terminology for me? C++98 - the current C++ standard pre tr1? C++02 - the current C++ standard post tr1? or the original target date for what has become c++0x? C++0x - the next eagerly awaited standard. Is that right? Thx - Rob.

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[math] iround / llround with rounding error
by gast128 13 Dec '10

13 Dec '10

Hello all, we want to use iround / llround without exception handling. This is possible with the 'user_error' option and override a 'user_rounding_error' function. We want to return numeric_limits<int>::max() or numeric_limits<__int64>::max() if the rounding overflows over the maximum integer domain. This is then problematic since the 'user_rounding_error' has a template argument only for its source type (e.g. float / double), but not for its target type (i.e. int / __int64). We can ofc do the check before calling iround / llround, but this check would then executed be twice for the normal non overflow case. Anyone idea?

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coexistence of Intel-toolset based Boost and GCC libraries
by H Magnet 13 Dec '10

13 Dec '10

Hello, I have built boost v1.45 using Intel compiler 11.1: $ bjam toolset=intel --with-mpi --with-thread --with-serialization \ --prefix=$HOME/local variant=release link=static install Then using the same intel compiler I use the static boost libraries from above to compile a code which uses boost.mpi and boost.serialization explicitly. My code depends on a 3rd party dynamic library which 'requires': libboost_thread-gcc41-mt-1_34_1.so.1.34.1 libboost_signals-gcc41-mt-1_34_1.so.1.34.1 Should I be concerned about conflicting compilers ? In general if I've built the boost libraries (thread, mpi, ...) using Intel toolset, will it peacefully work with system's standard C/C++ libraries build by GCC? thanks in advance,

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Boost.MPI: question about documentation of gather()
by H Magnet 13 Dec '10

13 Dec '10

Hello, I am trying to debug my simple code (gathering of double arrays onto master). and naturally I opened gather online help: http://www.boost.org/doc/libs/1_45_0/doc/html/boost/mpi/gather.html In Parameters section, for 'in_values', it is stating that if gathering arrays of values, 'in_values' should be pointing to a storage of n*comm.size() values Shouldn't this be n*size_of(T) or something in those lines? Am I missing some obvious points here ? thanks in advance, Hamid

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How to use a P12 container with Boost::Asio
by Andi Clemens 13 Dec '10

13 Dec '10

Hi, I need to connect to a server via SSL. The only thing I have is an P12 container, but I can not find any hint in the Boost::Asio examples and documentation on how to use it. Is it possible to use a P12 with Boost::Asio, as described in here with PEM: http://www.boost.org/doc/libs/1_45_0/doc/html/boost_asio/example/ssl/client… Or can I use some kind of bytestream and just hardcode it for now, e.g. create a bytearray, put the content of the P12 in there and use it with Bosst::Asio? Is this possible? Andi

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[boost.test] Unicode support
by Sean Farrow 13 Dec '10

13 Dec '10

Hi: I am working on windows and writng programs that use Unicode characters. Does boost.test support Unicode in it's main function and it's logging output. Regards Sean.

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using boost.fireach with boost.filesystem dorectory iteration
by Sean Farrow 13 Dec '10

13 Dec '10

Hi: Is it possible to use boost foreach to iterate through directories using boost.filesystem? In the simple_ls.cpp a directory_iterator is used. Any help appreciated. Cheers Sean.

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Building boost
by Christian Henning 12 Dec '10

12 Dec '10

Hi there, I'm trying to track down a problem I have with building boost and quickbooks. For this I started out with a fresh download of boost 1.45. I also removed user-config.jam and all environment variables which might be used by boost. Such as BOOST_BUILD, BOOST_BUILD_PATH, BOOST_ROOT. Now I open up the command line I get his: ---------------------------------- Setting environment for using Microsoft Visual Studio 2010 x64 tools. C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC>cd c:\boost c:\boost>bjam -j8 --toolset=msvc --without-mpi variant=release link=static runtime-link=shared address-model=64 define=_CRT_NONSTDC_NO_DEPRECATE define=_CRT_SECURE_NO_DEPRECATE define=_SCL_SECURE_NO_DEPRECATE define=_SECURE_SCL=0 define=_HAS_ITERATOR_DEBUGGING=0 stage c:/boost/tools/build/v2/build\configure.jam:145: in builds-raw *** argument error * rule UPDATE_NOW ( targets * : log ? : ignore-minus-n ? ) * called with: ( <pbin.v2\libs\regex\build\msvc-10.0\debug\address-model-64\thre ading-multi>has_icu.exe <pbin.v2\libs\regex\build\msvc-10.0\debug\address-model- 64\threading-multi>has_icu.pdb : : ignore-minus-n : ignore-minus-q ) * extra argument ignore-minus-q (builtin):see definition of rule 'UPDATE_NOW' being called c:/boost/tools/build/v2/build\configure.jam:179: in configure.builds c:/boost/tools/build/v2/build\configure.jam:216: in object(check-target-builds-w orker)(a)408.check c:/boost/tools/build/v2/kernel\modules.jam:103: in modules.call-in c:/boost/tools/build/v2/util\indirect.jam:96: in indirect.call c:/boost/tools/build/v2/build\targets.jam:1012: in targets.evaluate-requirements c:/boost/tools/build/v2/build\targets.jam:1393: in basic-target.compute-usage-re quirements c:/boost/tools/build/v2/build\alias.jam:47: in compute-usage-requirements c:/boost/tools/build/v2/build\targets.jam:1319: in object(alias-target-class)@41 2.generate c:/boost/tools/build/v2/build\targets.jam:732: in generate-really c:/boost/tools/build/v2/build\targets.jam:704: in object(main-target)(a)802.genera te c:/boost/tools/build/v2/build\targets.jam:848: in targets.generate-from-referenc e c:/boost/tools/build/v2/build\targets.jam:1217: in generate-dependencies c:/boost/tools/build/v2/build\targets.jam:1268: in object(typed-target)(a)415.gene rate c:/boost/tools/build/v2/build\targets.jam:732: in generate-really c:/boost/tools/build/v2/build\targets.jam:704: in object(main-target)(a)803.genera te c:/boost/tools/build/v2/build\targets.jam:848: in targets.generate-from-referenc e c:/boost/tools/build/v2/build\targets.jam:1217: in generate-dependencies c:/boost/tools/build/v2/build\targets.jam:1266: in object(typed-target)(a)167.gene rate c:/boost/tools/build/v2/build\targets.jam:732: in generate-really c:/boost/tools/build/v2/build\targets.jam:704: in object(main-target)(a)784.genera te c:/boost/tools/build/v2/build\targets.jam:258: in object(project-target)(a)149.gen erate c:/boost/tools/build/v2/build\targets.jam:848: in targets.generate-from-referenc e c:/boost/tools/build/v2/build\targets.jam:1217: in generate-dependencies c:/boost/tools/build/v2/build\targets.jam:1268: in object(install-target-class)@ 82.generate c:/boost/tools/build/v2/build\targets.jam:732: in generate-really c:/boost/tools/build/v2/build\targets.jam:704: in object(main-target)(a)623.genera te c:/boost/tools/build/v2/build\targets.jam:848: in targets.generate-from-referenc e c:/boost/tools/build/v2/build\targets.jam:1217: in generate-dependencies c:/boost/tools/build/v2/build\targets.jam:1268: in alias-target-class.generate Jamroot:648: in build-multiple Jamroot:612: in object(top-level-target)(a)91.generate c:/boost/tools/build/v2/build\targets.jam:732: in generate-really c:/boost/tools/build/v2/build\targets.jam:704: in object(main-target)(a)627.genera te c:/boost/tools/build/v2\build-system.jam:735: in load c:\boost\tools\build\v2/kernel\modules.jam:283: in import c:\boost\tools\build\v2\kernel\bootstrap.jam:142: in boost-build c:\boost\boost-build.jam:17: in module scope c:\boost> ------------------------------------------ The next step I'm doing is to copy user-config.jam into my home directory. I also add the following line: use-project boost : C:\\boost ; The output is even worse. Now bjam is crashing. Here is what I have: ------------------------------------------------------- Setting environment for using Microsoft Visual Studio 2010 x64 tools. C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC>cd c:\boost c:\boost>bjam -j8 --toolset=msvc --without-mpi variant=release link=static runtime-link=shared address-model=64 define=_CRT_NONSTDC_NO_DEPRECATE define=_CRT_SECURE_NO_DEPRECATE define=_SCL_SECURE_NO_DEPRECATE define=_SECURE_SCL=0 define=_HAS_ITERATOR_DEBUGGING=0 stage Class top-level-target already defined This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. c:\boost> --------------------------------------------------------------------------------------------------- Anyone any idea on what might going on? Thanks, Christian

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