May 2008 - Boost-users - lists.preview.boost.org

Re: [Boost-users] Problems using pre-compiled boost libraries
by Fanara, Mark A (GE Infra, Transportation) 30 May '08

30 May '08

Alex, Thanks for the suggestion, but it did not help. Perhaps the best bet is for me to A) Rebuild the libraries (ugh - Wish boost-consulting would provide Visual Studio projects to do this instead of boost jam) B) Don't use the libraries, but add the needed boost .cpp files to my project Any thoughts? >Go to Project properties -> Manifest tool -> Use FAT32 work around -> YES > >This bizarre bug is related to some timestamp issue in the FAT32 system, I'm not sure... there's some long MSDN forum threads out there about it from google. > >Good luck! > >Alex Mark Fanara GE - Transportation Global Signaling Senior Software Engineer T 816-650-4684 F 513-786-4509 C 816-674-4614 D *217-4684 E mark.fanara(a)trans.ge.com www.getransportation.com 31003 East Argo Rd PO Box 600 Grain Valley, MO 64029-9477 US GE Transportation NOTICE: The information contained in this email and any document attached hereto is intended only for the named recipient(s). It is the property of the General Electric Company and shall not be used, disclosed or reproduced without the express written consent of the General Electric Company. If you are not the intended recipient (or the employee or agent responsible for delivering this message in confidence to the intended recipient(s)), you are hereby notified that you have received this transmittal in error, and any review, dissemination, distribution or copying of this transmittal or its attachments is strictly prohibited. If you have received this transmittal and/or attachments in error, please notify me immediately by reply email or telephone 816-650-6171 X4684 and immediately delete this message and all its attachments. Thank you.

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Problems using pre-compiled boost libraries with Visual Studio 2005
by Fanara, Mark A (GE Infra, Transportation) 30 May '08

30 May '08

I downloaded the current pre-built boost library files, but am having some difficulty with them. I am building a VC8.0 (Visual Studio 2005) application that is making use of boost::program_options and boost::filesystem. My application links fine, but when I try to execute the program, I get an error message about a missing "MSVCP80D.dll" (or "MSVCP80.dll" when building for release). I don't have those .dlls on my machine. I tried reinstalling Visual Studio, but that did not work. I found the needed .dll files online and downloaded them. After installing the .dll files, I got another error about another missing .dll which I also downloaded. Next error message received is "This application has failed to start because the application configuration is incorrect. Review the manifest file for possible errors. Reinstalling the application may fix this problem. For more details, please see the application event log." A couple of other notes: The application I am trying to build was previously successfully built by a couple of other engineers here (I think using 1.33.x and/or 1.34.x). I am trying to replicate their work using the current libraries. One of the guys does not work here and the other got a new PC and somehow lost his ability to build the project.

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Re: [Boost-users] shared memory overhead
by Jason Sachs 30 May '08

30 May '08

>Alternatively, why not use files instead? I am using an HDF5 file to log data as a physical store, but it doesn't handle concurrent access + I am looking for a fast way (in addition to the log file) to share some acquired data between processes.

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error code definition
by Longyu Mei 30 May '08

30 May '08

Want to know where to find the definition of boost error code. I got a system.111 error. looked at the error_code.hpp, system_error.hpp and few other files but cannot find the 111. Anybody can help me? thanks

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Re: [Boost-users] Off topic: Interface / design question
by Nikolai N Fetissov 30 May '08

30 May '08

> > Background: > I am/was planning to profile the thread libraries from boost and ACE. > During this experiment, I wish we had an interface class defined for > threads. Also, I wish boost and ACE had implemented those interface > classes. It would have helped someone like me profile different C++ > libraries with ease. > > I was going through the header files of boost and I don't see a > interface classes being used. I am trying to understand was there a > conscientious decision made to not define them. I am trying to > understand the reason behind those decisions. It will help newbie's like > me to understand C++ better and write better code. Amit, ACE and Boost are unrelated projects, and there's no universal thread "interface" to implement. This doesn't mean you can't design thin wrappers yourself for your experiment. Honest advise though - do not use ACE, even if you find it faster, which I very much doubt. Boost is a set of modern C++ libraries, pushing its way into standard C++, and developed by world experts; while ACE is dated, ugly, monolithic monster that forces you into wrong design choices. Hope this helps. -- Nikolai

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Boost::Tokenizer question
by Sean Farrow 30 May '08

30 May '08

Hi: I need to break a string with dashes (-) whais the easiest way of doing this. Sean.

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shared memory overhead
by Jason Sachs 30 May '08

30 May '08

I have a bunch of data I am trying to store in shared memory which is basically a vector of bytes + a vector of some metadata; both vectors, in general, grow as time goes on at an unpredictable rate, until someone stops using them. The vector lengths are extremely variable; total amount of shared memory could be as small as 10K and as large as several hundred megabytes. I will not know beforehand the amount needed. >From what I understand about Boost shared memory segments, they are not infinitely growable, so I think I have to organize my data into chunks of a more reasonable size, and allocate a series of separate shared memory segments with a few chunks in each. (there are other application-specific reasons for me to do this anyway) So I am trying to figure out what is a reasonable size is of shared memory to allocate. (probably in the 64K - 1MB range but I'm not sure) Does anyone have any information about the overhead of a shared memory segment? Just an order of magnitude estimate, e.g. M bytes fixed + N bytes per object allocated + total size of names. Are M,N on the order of 10 bytes or 10Kbytes or what?

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Need help configuring a toolset for building Boost
by CSB 30 May '08

30 May '08

I've manage to build Boost (1_35_0) on my windows/cygwin machine using gcc (version 3.4.4) and it builds the threads dll such that I'm able to compile and run an application on windows that tests the threads. Now I'd like to be able to build using a cross-compiler (arm-xscale-linux-gnu-gcc version 4.1.0) but I'm not sure how to get it to recognize the tools. I was able to build for windows/cygwin with the following command: > bjam --build-dir=tmp/build-boost --toolset=gcc threading=multi > target-os=cygwin threadapi=pthread stage Changing 'gcc' to 'arm-xscale-linux-gnu-gcc' and 'cygwin' to 'linux' didn't work. Here is the error I'm getting: arm.jam: No such file or directory c:/cppLibs/boost_1_35_0/tools/build/v2/build\toolset.jam:38: in toolset.using rule arm.init unknown in module toolset. c:/cppLibs/boost_1_35_0/tools/build/v2\build-system.jam:429: in process-explicit-toolset-requests c:/cppLibs/boost_1_35_0/tools/build/v2\build-system.jam:508: in load c:\cppLibs\boost_1_35_0\tools\build\v2/kernel\modules.jam:267: in import c:\cppLibs\boost_1_35_0\tools\build\v2/kernel/bootstrap.jam:132: in boost-build c:\cppLibs\boost_1_35_0\boost-build.jam:11: in module scope

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Compile error when serializing an std::map./
by james.vanns＠framestore.com 30 May '08

30 May '08

Hi all, with Boost 1.3.5 and g++ 4.2.1 on Linux I get the following compile error from one of the Boost headers: boost/serialization/utility.hpp:48: error: expected template-name before ‘<’ token boost/serialization/utility.hpp:48: error: expected `{' before ‘<’ token boost/serialization/utility.hpp:48: error: expected unqualified-id before ‘<’ token boost/serialization/utility.hpp:50: error: extra ‘;’ I am trying to serialize a map like so: #include <boost/serialization/map.hpp> using std::map; struct Resource { enum ID { CPU = 0, RAM, TMP, PRMAN }; static const char* const name[]; }; class ResourceSet { private: typedef uint16_t Tally; typedef Resource::ID RID; map<RID, Tally> m_resources; private: friend class boost::serialization::access; template<class Archive> void serialize (Archive &p_ark, const unsigned int p_version); }; template<class Archive> void ResourceSet::serialize (Archive &p_ark, const unsigned int p_version) { p_ark & m_resources; } So I am wondering why the compiler is spitting out this error? Is this a bug or is this because of the typedefs? Line 48+ from utility.hpp is this: /// specialization of is_bitwise_serializable for pairs template <class T, class U> struct is_bitwise_serializable<std::pair<T,U> > : public mpl::and_<is_bitwise_serializable<T>,is_bitwise_serializable<U> > { }; } // serialization } // namespace boost Regards, Jim Vanns -- James Vanns Systems Programmer Framestore CFC Ltd.

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Errors building boost 1.35.0 under mingw (serialization related)
by Jose Manuel Pulido 30 May '08

30 May '08

Hello, this is my firs try to build boost under windows vista using mingw-3.4.5, so I'm totally newbie, and I'm getting several compiling errors. The first one is this: *gcc.link.dll bin.v2\libs\serialization\build\gcc-mingw-3.4.5\release\threading-multi\boost_serialization-mgw34-mt-1_35.lib Creating library file: bin.v2\libs\serialization\build\gcc-mingw-3.4.5\release\threading-multi\boost_serialization-mgw34-mt-1_35.lib bin.v2\libs\serialization\build\gcc-mingw-3.4.5\release\threading-multi\codecvt_null.o:codecvt_null.cpp:(.rdata$_ZTVN5boost7archive12codecvt_nullIwEE[vtable for boost::archive::codecvt_null<wchar_t>]+0x14): undefined reference to `std::codecvt<wchar_t, char, int>::do_unshift(int&, char*, char*, char*&) const' *After googling for a while, I found this discussion: http://thread.gmane.org/gmane.comp.lib.boost.user/34741 where removing the line #47 from libs/serialization/build (this line's content is codecvt_null) was proposed as a solution. It seems this didn't completely work since the previous error disappeared, but I got a new one and I haven't been able to find a possible solution. The error message is this: * gcc.compile.c++ bin.v2\libs\serialization\build\gcc-mingw-3.4.5\release\threading-multi\basic_text_wiprimitive.o libs\serialization\src\basic_text_wiprimitive.cpp:14:2: #error "wide char i/o not supported on this platform" *Any help will be appreciated. Regards: J. Pulido

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