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Re: Re: how to get regex to link in windows? (John Maddock)
by Alexis H. Rivera-Rios 17 Mar '05

17 Mar '05

John, I took out the hardcoded library and let the code figure it out by itself. I also removed the BOOST_REGEX_NO_W32 as you suggested but then I get compiler errors in the windows code (This was the reason I put BOOST_REGEX_NO_W32) Here are the errors; Linking to lib file: libboost_filesystem-vc71-mt-gd-1_32.lib Linking to lib file: libboost_regex-vc71-mt-gd-1_32.lib c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h(8390) : error C2143: syntax error : missing ')' before '->' c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h(8390) : error C2143: syntax error : missing ';' before '->' c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h(8390) : error C2165: 'left-side modifier' : cannot modify pointers to data c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinNT.h(8390) : error C2059: syntax error : ')' c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinBase.h(2382) : error C2143: syntax error : missing ')' before '->' c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinBase.h(2382) : error C2143: syntax error : missing ';' before '->' c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinBase.h(2382) : error C2165: 'left-side modifier' : cannot modify pointers to data c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinBase.h(2382) : error C2059: syntax error : ')' Programming Tutorial: In Python: To do this, do this In Perl: To do this, do this or this or this or this... In C: To do this, do this, but be careful In C++: To do this, do this, but don't do this, be careful of this, watch out for this, and whatever you do, don't do this __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/

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composition and arguement binding: what to use: boost::bind vsboost::mpl vs boost::lambda
by Robert Mathews 17 Mar '05

17 Mar '05

I've become rather confused about the exact relationship between these libraries. In particular, boost::mpl seems to contain placeholders and lambda templates just like boost::bind and boost::lambda. That leds me to wonder if there would be any point to using boost::bind or boost::lambda if you are using boost::mpl? In fact, if boost::mpl is a functional superset of the other two libraries, why not drop those libraries from boost altogether and eliminate the confusion? Rob.

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[regex] Unresolved external symbols under VC7.1 w/ dynamic linking
by Klaus Nowikow 17 Mar '05

17 Mar '05

Hello, when I define the symbol BOOST_DYN_LINK (in my project settings) I get the following linker errors in MSVC 7.1: FilterDlg.obj : error LNK2001: unresolved external symbol "wchar_t * boost::re_detail::wide_lower_case_map" (?wide_lower_case_map@re_detail@boost@@3PA_WA) FilterDlg.obj : error LNK2001: unresolved external symbol "private: static unsigned short * boost::w32_regex_traits<wchar_t>::wide_unicode_classes" (?wide_unicode_classes@?$w32_regex_traits@_W@boost@@0PAGA) When linking Boost.Regex statically, everything is ok. I am using /Zc:wchar_t ("Treat wchar_t as Built-in type") in my project settings. Any ideas what's going wrong? Regards, Klaus

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Boost.Build -- how to get started?
by Arkadiy Vertleyb 17 Mar '05

17 Mar '05

Hi all, I am trying to use Boost.Build to build my own project. However I found out that the documentation, while doing a good job in explaining details, is petty difficult to use if all one wants to know is how to use bjam to build a "Hello world" project in a couple of toolsets. I already downloaded bjam.exe, and I have no problem in creating the jamfile. However, AFAIU, I need more files to be installed, such as jamrools, files that describe toolsets, etc. Can anybody to just list which files are needed, where to get, and where to put them? Or point me to where it's described if I missed something... Unless, of course, this is kind of Illuminati path, and one only deserves to use this tool if able to figure out how? :-) Thanks a lot in advance. Regards, Arkadiy

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what should be used if shared_polymorphic_cast is deprecated?
by Bernard Chen 16 Mar '05

16 Mar '05

Hello, I was looking at the casting functions and the one that had the behavior I wanted most was the shared_polymorphic_cast. I do not want an empty shared_ptr<T> to be created if the cast cannot be performed. I would prefer to have an exception thrown in debug mode and release mode. The problem is that while going through the shared_ptr.hpp, I found a comment on line number 388 just above all the cast conversion functions "// shared_*_cast names are deprecated. Use *_pointer_cast instead." I have not found a *_pointer_cast function that does what I want. The dynamic_pointer_cast does not throw an exception. Is there a good alternative? Should I enforce a standard on my team of using dynamic_pointer_cast along with a run-time check of seeing if an empty shared_ptr<T> was created? Thanks, Bernard

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RE: [Boost-users] Determinism of operator< on shared_ptr
by Renaud Lepere 16 Mar '05

16 Mar '05

> From Peter Dimov > > In other words, in the following code i would like to know > if is_less > > will always have the same value or not ? > > > > shared_ptr<int> p1(new int(0)); > > shared_ptr<int> p2(new int(0)); > > bool is_less(p1 < p2); > > I'm not sure what you are asking. is_less will be either true > or false, and > it will remain the same value if you don't modify p1 or p2. > p2 < p1 will > have the opposite value of p1 < p2. > I was not clear, if we consider the following code bool f() { shared_ptr<int> p1(new int(0)); shared_ptr<int> p2(new int(0)); return (p1 < p2); } int main() { // some function calls bool b1(f()); // some other function calls bool b2(f(()); assert(b1 == b2); return 0; } will the assertion be always true (is f() a deterministic function). Thanks, Renaud

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boost::function, boost::bind question
by Philippe Després 16 Mar '05

16 Mar '05

Hello, I am using Numerical Recipes routines and I am trying to call this function void mrqmin(Vec_I_DP &x, Vec_I_DP &y, Vec_I_DP &sig, Vec_IO_DP &a, Vec_I_BOOL &ia, Mat_O_DP &covar, Mat_O_DP &alpha, DP &chisq, void funcs(const DP, Vec_I_DP &, DP &, Vec_O_DP &), DP &alamda); and I would like to call it with funcs being a member function pointer of one of my class. I can declare the member as static but then I cannot access member variable, which is the goal here. Someone suggested to use boost to solve the problem. His solution is here http://www.numerical-recipes.com/forum/showthread.php?s=&threadid=526 I tried to implement this but the result is this error: cannot convert `boost::function<void ()(double, const Vec_I_DP&, double&, Vec_O_DP&), std::allocator<void> >' to `void (*)(DP, const Vec_I_DP&, DP&, Vec_O_DP&)' for argument `9' to `void NR::mrqmin(const Vec_I_DP&, const Vec_I_DP&, const Vec_I_DP&, Vec_IO_DP&, const Vec_I_BOOL&, Mat_O_DP&, Mat_O_DP&, DP&, void (*)(DP, const Vec_I_DP&, DP&, Vec_O_DP&), DP&)' Any idea how I could do that? Thanks -- Philippe

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Determinism of operator< on shared_ptr
by Renaud Lepere 16 Mar '05

16 Mar '05

I'm building a dynamic library and i'm recording/tracing all the function calls to be able to reproduce bugs. I would like to know if operator< on shared_ptr is determinist or not and if it is possible to have / change the behaviour of shared_ptr for adding it determinism. In other words, in the following code i would like to know if is_less will always have the same value or not ? shared_ptr<int> p1(new int(0)); shared_ptr<int> p2(new int(0)); bool is_less(p1 < p2); Thanks, renaud

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Re: [Boost-users] Boost.Build -- how to get started?
by zhengyi 16 Mar '05

16 Mar '05

Arkadiy Vertleyb, This is a programmer from China. My poor English maybe bore you , but all the steps of building boost is here(as far as I know ). I can answer your problem , because i am a newer also. It took me several days to build the boost. I don't know your boost version and your platform situation. Now let me tell you how I do it: I 'm using boost 1.32.0 and stlport 4.6.2. In msvc71 enviroment. For the compatibility sake , i perfer the jam come with boost package. So the first step is to build the jam(using msvc compiler ). 1) run vcvars32.bat(you can find it in ms visual studio .) to set up the msvc environment variables. 2) goto BOOST_ROOT/tools/build/jam_src dir to run the file build.bat. 3) when compile ok , and you can get the result in BOOST_ROOT\tools\build\jam_src\bin.ntx86 4) please copy the Bjam.exe to the BOOST_ROOT\ dir. OK , the prepare was done! Let go on to build the boost lib. 1) if you close the cmd wnd in the last step , please open it and run vcvars32.bat again. 2) write a bat file and copy it to the BOOST_ROOT\ (the file content is as follow ) some comment may not display correctly because it was writen in Chinese^_^ /**************************************************************************************/ rem install_msvc71stlport.bat SET TargetDir=E:\Program_Files\Develop\Boost\boost_1_32_0 SET Toolset=vc-7_1-stlport SET STLPORTPAHT=E:\Program_Files\Develop\STLport-4.6.2 SET STLPORTVERSION=4.6.2 rem ================================ rem ?????????????? SET OLD_LIB=%LIB% SET LIB=%LIB%;%STLPORTPAHT%\lib rem ================================ Bjam "-sBUILD=debug release <runtime-link>static/dynamic <threading>single/multi <native-wchar_t>on" "-sSTLPORT_%STLPORTVERSION%_PATH=%STLPORTPAHT%" "-sSTLPORT_VERSION=%STLPORTVERSION%" "--prefix=%TargetDir%" "-sTOOLS=%Toolset%" install rem ================================ rem ?????????????? SET LIB=%OLD_LIB% rem ================================ /**************************************************************************************/ 3) run the bat file you've written . 4) waiting for the computer to build the whole lib. It will take a long time( about 20 minutes in my computer) 5) Don't think all was done!! the most difficult step is here: 6) I bet you that there are some error in the building. so try to fix them and goto step 3 until all error was killed. now , I will tell you the errors I meet in the building: 1) date_time will give you some error when using STLport. this is because when you build stlport the /Zc:wchar_t compiler option was not set . So ,set /Zc:wchar_t and rebuild the stlport, and rebuild the data_time lib . the error disappear. if you don't want to rebuild the stlport , add the "-sBUILD=<native-wchar_t>on" in Bjam cmd line. 2) program_options lib, \boost\program_options\detail\utf8_codecvt_facet.hpp line70, replace "using ::codecvt" to "using std::codecvt". I think it is a error of source file. 3) Serialization lib: \boost\archive\impl\xml_woarchive_impl.ipp line47 replace the line with the following typedef iterators::xml_escape<const wchar_t *> xmbtows . This is a problem boring me for a long time . A last , Robert Ramey told me to do that.but is is a temporary solution because this change has not been fully tested on other Platform. Here , it is all I know about how to build boost. I ' a newer to boost and my english is poor , so if you has any question ,please tell me . 　　 ======= 2005-03-16 10:15:00 您在来信中写道：======= >Hi all, > >I am trying to use Boost.Build to build my own project. However I found out >that the documentation, while doing a good job in explaining details, is >petty difficult to use if all one wants to know is how to use bjam to build >a "Hello world" project in a couple of toolsets. > >I already downloaded bjam.exe, and I have no problem in creating the >jamfile. However, AFAIU, I need more files to be installed, such as >jamrools, files that describe toolsets, etc. Can anybody to just list which >files are needed, where to get, and where to put them? Or point me to where >it's described if I missed something... > >Unless, of course, this is kind of Illuminati path, and one only deserves to >use this tool if able to figure out how? :-) > >Thanks a lot in advance. > >Regards, >Arkadiy > > > >_______________________________________________ >Boost-users mailing list >Boost-users(a)lists.boost.org >http://lists.boost.org/mailman/listinfo.cgi/boost-users > >. = = = = = = = = = = = = = = = = = = = = 致礼！ zhengyi goodmen(a)x263.net 2005-03-16

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Re: [FileSystem] Internationalization woes on windows
by Mark Holloway 16 Mar '05

16 Mar '05

> I'd like to run a test here to be sure; could you please supply an example > of <internationalized chars> that is causing the problem? A filename containing a beta character "β" causes GetFileAttributesA to fail to find the file specified on my system. It's possible that if my codepage was different this would not be a problem. > I'm not at all surprised you are having problems; it isn't at all clear to > me that it is possible to do reliable processing on Windows using the A > (narrow) variants if Unicode characters are present. In fact I've discovered after experimentation with the alledged MBCS support on windows that it really is skin deep. I've not been able to get any char* function to take a UTF-8 string! Even those that claim to be affected by the current multi-byte codepage. Anyone who has managed this - please feel free to correct me! I've drilled down into the Rtl routines which seem to deal with multi-byte characters but there just doesn't seem to be away to affect the bits that matter. > I've got the internationalized revision of the Filesystem library running > on Windows; it seems to be handling wide characters with ease. I've done the same thing myself (I guess more or less the same thing). I initially attempted it without changing the API by converting the wide result to UTF-8, mostly to assist in keeping common code base with our other platforms (Mac,Sparc,Linux, etc - some of which are wide-character challenged) before realizing the full extent of the MBCS issues outlined above. After all - if I can't construct a std::fstream with a UTF-8 argument... > One fix for your problem is to switch to the internationalized version and > use wchar_t based paths. That will use the W Windows variants, and will > also work well on POSIX systems with internationalized file or directory > names. I'd be happy to try that version (and swap it for my own) - where can I find it? My own hacked version is switch-able, even for windows so that Win95 is supported without installing the Unicode layer (sigh). > Another possibility is that we can work on the narrow functions to make > them function better in the face of internationalized names. But I'd need a > lot of help on that to develop test cases and strategies to handle them. Without the underlying ANSI API variants not supporting UTF-8, I just can't see how this example could ever be portable in the presence of Unicode without wide chars: std::ofstream file( boost::filesystem::current_path().native_file_string().c_str() ); It will finally call down to the the ANSI function CreateFileA - which just won't be able to deal with it. Then there is the performance penalty of ANSI<->Unicode conversion under Windows NT. Thanks for your time (and your work!) Mark P.S. One other minor suggestion whilst I'm in the filesystem area (and I really don't want to (re)open a can of worms here) is to be able to choose the default path check at compile time.

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