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Re: [Boost-users] Create Module with boost
by derleader __ 30 Dec '10

30 Dec '10

>> Hi, >> Can you tell me how I can create a modules with boost? > > >You've already asked that on this thread: >http://thread.gmane.org/gmane.comp.lib.boost.user/64732 > >but haven't clarified your question. >_______________________________________________ >Boost-users mailing list >Boost-users(a)lists.boost.org >http://lists.boost.org/mailman/listinfo.cgi/boost-users > Sorry, I deleted the last message by mistake. > I'm new to Boost and I'm new C++ developer. I'm looking for examples how > to write application divided into modules using Boost. Is there already done > example? I need to see how to write C++ module. What do you mean by saying "module"? Compile-time unit or a binary module that you'll load in run-time? I'm not sure what are the differences between compile-time unit and binary module. I suppose that the best for me will be to use binary module which will be loaded in run-time. Is there example of such modules? I think that the best way for communication between the modules will be to user mapping share memory. What can you advice me? Regards Peter

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[message_queue.hpp]is it possible to use a boost message queue without data getting interleaved from multiple processes
by rohini chandra pallapothu 30 Dec '10

30 Dec '10

Hi, I have used boost message queues to setup IPC between a command client and a server on Linux. The client is a command which sends the command options and the server fetches the data and sends it to the client. The client prints the output received from server on the console. The data sent from the command is small but the data sent by the server to the command is huge(~11Mb). Server need to send the data to multiple command clients simultaneously as it is common to execute commands with different options at the same time from different terminals. The commands take quite some time to complete as the data sent from the server is huge. So more than one command running simultaneously is common. I do not see data missing when only one command is executed at a time. But when I execute two commands simultaneously, it seems that the data addressed to the two commands gets interleaved. I need to make sure that data addressed to multiple command clients is not interleaved. Only data addressed to that client should be received by a client. Since the same boost message queue with the same name is used for all the command clients, how can this problem be addressed. I read that Windows Named pipes handle this problem inherently . Could this be a problem with my implementation or is this a limitation of the boost message queues? Please let me know if you need more details Regards, Rohini Chandra

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It seems a bug in boost::property_tree when I use custom allocator.
by SONGFY 29 Dec '10

29 Dec '10

I use custom stl allocator to replace std::basic_string like this: typedef std::basic_string<char, std::char_traits<char>, MySTLAllocator<char> > MyString; I want basic_ptree can use my allocator to do parse work, so I write code like this: typedef boost::property_tree::basic_ptree<MyString, MyString> PropertyTree; PropertyTree propertyTree; boost::property_tree::read_ini(std::ifstream(configFile.c_str()), propertyTree); And I met error at ini_parser.hpp, line 109~111: Str key = property_tree::detail::trim( line.substr(1, end - 1), stream.getloc()); if (local.find(key) != local.not_found()) the Str is a typedef at the begin of this function: typedef std::basic_string<Ch> Str; So my custom string can not assign to the key, so it seems can not use custom allocator at all. There have the same problem in xml_parser.

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Create Module with boost
by derleader __ 29 Dec '10

29 Dec '10

Hi, Can you tell me how I can create a modules with boost? Regards Peter

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Create Module with boost
by derleader __ 29 Dec '10

29 Dec '10

Ok, thank you. Is there another way than binary modules loaded at run-time? What are the options for creating modular applications with boost? Regards Peter First, at the moment there is no standard way to do this. Second, there is a library that is meant to do this and will be proposed to boost once complete enough. It's boost::extension : http://boost-extension.redshoelace.com/docs/boost/extension/index.html Now, (correct me if I'm wrong), the author said some months/years ago that he cant continue developpement because of language limitations that C++0x will certainly fix (I'm not sure what but I guess it's about ABI?). Anyway, it seems to be working and used by some people, but not as complete as the author would like too. (and the documentation could be improved I think). There are other libraries providing the same functionallity, like Poco's Shared Libraries ( http://pocoproject.org/slides/120-SharedLibraries.pdf ). Boost::extension and Poco Shared Libraries are cross-platform. Other than that and calling platform-specific API functions, there is no boost library that allows binary modules loaded at run-time. But I guess that's already helping. On Wed, Dec 29, 2010 at 18:20, derleader __ derleader(a)abv.bg > wrote: >> Hi, >> Can you tell me how I can create a modules with boost? > > >You've already asked that on this thread: > http://thread.gmane.org/gmane.comp.lib.boost.user/64732 > >but haven't clarified your question. >_______________________________________________ >Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > Sorry, I deleted the last message by mistake. > I'm new to Boost and I'm new C++ developer. I'm looking for examples how > to write application divided into modules using Boost. Is there already done > example? I need to see how to write C++ module. What do you mean by saying "module"? Compile-time unit or a binary module that you'll load in run-time? I'm not sure what are the differences between compile-time unit and binary module. I suppose that the best for me will be to use binary module which will be loaded in run-time. Is there example of such modules? I think that the best way for communication between the modules will be to user mapping share memory. What can you advice me? Regards Peter _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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[GIL] Inspecting any_image
by Szymon Gatner 29 Dec '10

29 Dec '10

Is it possible to find out which of allowed image formats any_image actually has? For example, if image is loaded with code provided in dynamic_image.cpp: typedef boost::mpl::vector<gray8_image_t, rgb8_image_t, gray16_image_t, rgb16_image_t> my_images_t; any_image<my_images_t> dynamic_img; jpeg_read_image("test.jpg",dynamic_img); how to figure out which colorspace / layout loaded image have? -- Szymon Gatner

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[boost.filesystem3] ensuring a path has a \ or / on the end
by Sean Farrow 29 Dec '10

29 Dec '10

Hi: I'm writing some c++ code (using win32 api functions) and need to ensure that the boost::filesystem::path has a backslash on the end. For example the path: C:\test should beoutput as c:\test\ Does boost::filesystem have a method to ensure this is the case? Cheers Sean.

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Build Bjam
by Christer Borgqvist 29 Dec '10

29 Dec '10

Hello, I have RAD Studio XE, try to build bjam using boost_1_44_0\tools\jam\src\build.bat and get the following errors ### ### Using 'borland' toolset. ### Z:\boost_1_44_0\tools\jam\src>if exist bootstrap rd /S /Q bootstrap Z:\boost_1_44_0\tools\jam\src>md bootstrap Z:\boost_1_44_0\tools\jam\src>bcc32 -WC -w- -q -IC:\Program\Embarcadero\RAD Stud io\8.0\bin\..\Include -LC:\Program\Embarcadero\RAD Studio\8.0\bin\..\Lib /DNT -n bootstrap -ejam0 command.c compile.c debug.c execnt.c expand.c filent.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c new str.c option.c output.c parse.c pathunix.c regexp.c rules.c scan.c search.c subs t.c timestamp.c variable.c modules.c strings.c filesys.c builtins.c md5.c pwd.c class.c w32_getreg.c native.c modules/set.c modules/path.c modules/regex.c modul es/property-set.c modules/sequence.c modules/order.c Error E2194: Could not find file 'Studio\8.0\bin\..\Include.cpp' command.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** compile.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** debug.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** execnt.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** expand.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** filent.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** glob.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** hash.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** hdrmacro.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** headers.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** jam.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** jambase.c: jamgram.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** lists.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** make.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** make1.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' Error E2209 make1.c 70: Unable to open include file 'unistd.h' *** 3 errors in Compile *** newstr.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** option.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** output.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** parse.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** pathunix.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' Error E2209 pathunix.c 22: Unable to open include file 'unistd.h' *** 3 errors in Compile *** regexp.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** rules.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** scan.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** search.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** subst.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** timestamp.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** variable.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** strings.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** filesys.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** builtins.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** md5.c: pwd.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' Error E2209 pwd.c 19: Unable to open include file 'unistd.h' *** 3 errors in Compile *** class.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** w32_getreg.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** native.c: Error E2209 jam.h 404: Unable to open include file 'sys/file.h' Error E2209 jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/set.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/path.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/regex.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/property-set.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/sequence.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** modules/order.c: Error E2209 modules/../jam.h 404: Unable to open include file 'sys/file.h' Error E2209 modules/../jam.h 413: Unable to open include file 'unistd.h' *** 2 errors in Compile *** I have done a search for Include.cpp, sys/file.h and unistd.h but can`t find them. Appreciate any help, Christer

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Boost examples
by derleader __ 29 Dec '10

29 Dec '10

Hi, I'm new to Boost and I'm new C++ developer. I'm looking for examples how to write application divided into modules using Boost. Is there already done example? I need to see how to write C++ module. Regards Peter

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Boost.Python Compile Error(s) (GCC via MinGW-w64)
by Joshua Boyce 29 Dec '10

29 Dec '10

Hey all. I'm working on a project which currently only compiles under MSVC. I wish to port it to compile under GCC via MinGW-w64 also, however I've hit a brick-wall with a slew of compile errors I'm getting when using Boost.Python in my project. I'm not quite sure who's "fault" this problem is... Mine? Boost? GCC? libstdc++? MinGW-w64? Something else? I'm using TDM-GCC 4.5.1. http://tdm-gcc.tdragon.net/ Anyway, here is an example build output: http://raptorfactor.privatepaste.com/54e19acdc1 Ignore the errors in the 'MMHelper' project to do with exception routines, they are something else that I already know the cause and solution for. The problem I'm referring to is this one: gcc.compile.c++ Scripting\bin\gcc-mingw-4.5.1\debug\address-model-32\link-static\MemSandbox\Main.o In file included from c:\mingw64\bin\../lib/gcc/x86_64-w64-mingw32/4.5.1/include/c++/cmath:629:0, from c:\mingw64\bin\../lib/gcc/x86_64-w64-mingw32/4.5.1/include/c++/random:38, from c:\mingw64\bin\../lib/gcc/x86_64-w64-mingw32/4.5.1/include/c++/bits/stl_algo.h:66, from c:\mingw64\bin\../lib/gcc/x86_64-w64-mingw32/4.5.1/include/c++/algorithm:63, from E:\Code\Boost/boost/function/detail/prologue.hpp:13, from E:\Code\Boost/boost/function/function_template.hpp:13, from E:\Code\Boost/boost/function/detail/maybe_include.hpp:13, from E:\Code\Boost/boost/function/function0.hpp:11, from E:\Code\Boost/boost/python/errors.hpp:13, from E:\Code\Boost/boost/python/handle.hpp:11, from E:\Code\Boost/boost/python/args_fwd.hpp:10, from E:\Code\Boost/boost/python/args.hpp:10, from E:\Code\Boost/boost/python.hpp:11, from Scripting\MemSandbox\Main.cpp:38: c:\mingw64\bin\../lib/gcc/x86_64-w64-mingw32/4.5.1/include/c++/tr1_impl/cmath:203:11: error: '::hypot' has not been declared "g++" -ftemplate-depth-128 -O0 -fno-inline -w -g -m32 -std=c++0x -DBOOST_FILESYSTEM_VERSION=3 -DBOOST_PYTHON_STATIC_LIB -DBOOST_SYSTEM_STATIC_LINK=1 -DBOOST_THREAD_USE_LIB=1 -DDATE_TIME_INLINE -DUNICODE -D_UNICODE -Dnullptr=NULL -I"C:\Python27\Include" -I"E:\Code\Boost" -I"Common" -I"Dependencies" -I"Dependencies\BeaEngine" -I"Memory" -c -o "Scripting\bin\gcc-mingw-4.5.1\debug\address-model-32\link-static\MemSandbox\Main.o" "Scripting\MemSandbox\Main.cpp" ...failed gcc.compile.c++ Scripting\bin\gcc-mingw-4.5.1\debug\address-model-32\link-static\MemSandbox\Main.o... I'm at a loss as to how to fix this. I'm suspecting it's a MinGW problem, but I'm unable to find anybody else who has had or is having the same problem... I'm using Boost.Build as my build system. Relevant Jamfiles can be found here: http://code.google.com/p/hadesmem/source/browse/trunk/Jamroot http://code.google.com/p/hadesmem/source/browse/trunk/Common/Jamfile.v2 http://code.google.com/p/hadesmem/source/browse/trunk/Dependencies/Jamfile.… http://code.google.com/p/hadesmem/source/browse/trunk/HadesMem/Jamfile.v2 http://code.google.com/p/hadesmem/source/browse/trunk/Memory/Jamfile.v2 http://code.google.com/p/hadesmem/source/browse/trunk/Scripting/Jamfile.v2 Build command-line(s) here: http://code.google.com/p/hadesmem/source/browse/trunk/Build_Debug_AMD64_GCC… http://code.google.com/p/hadesmem/source/browse/trunk/Build_Debug_IA32_GCC.… http://code.google.com/p/hadesmem/source/browse/trunk/Build_Release_AMD64_G… http://code.google.com/p/hadesmem/source/browse/trunk/Build_Release_IA32_GC… If anyone could shed some light as to what's going wrong here and how I might fix it I'd really appreciate it. Thanks in advance.

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