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Problems when linking to regex library.
by Guan Bin 15 Sep '04

15 Sep '04

In my program, I used regex library. When I build the program to the release version, everything is ok. But when I build the debug version, some link error occurs: --------------------------------------------------------------- error LNK2001: unresolved external symbol "void * __cdecl boost::re_detail::get_mem_block(void)" (?get_mem_block@re_detail@boost@@YAPAXXZ) error LNK2001: unresolved external symbol "void __cdecl boost::re_detail::put_mem_block(void *)" (?put_mem_block@re_detail@boost@@YAXPAX@Z) --------------------------------------------------------------- the tools I use: VC6 + sp5 boost_1_31_0 the regex build process: nmake -fvc6.mak nmake -fvc6.mak install Why the link error occurs? How can I fix it? --

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installing limited libraries
by Andrew Dennison 14 Sep '04

14 Sep '04

How do you have bjam install a very limited set of libraries (ie one library only) without having to explicitly list all libraries except the one or two that you might want with a --without-<library> flag?

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Boost on Solaris 8
by cswiger 14 Sep '04

14 Sep '04

Hi - I need the boost libraries for gnuradio, which I'm trying to install on Solaris 8. Are there any prebuilt packages, or step-by-step detailed instructions for Sol8? I made a stab at it but got horribly lost, can post gory detail if necessary. Just curious if there is a simple solution first. TIA --Chuck

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Building libraries on Mac with CodeWarrior 9?
by Jane Lin 14 Sep '04

14 Sep '04

Hello, I haven't been able to find an answer in the archives. I had no problems building boost using bjam for the darwin (gcc) toolset, but have had no luck with CodeWarrior. I posted to the jamboost list, but received no response, so I'm hoping this is the right list! I have: CW 9.2 OS X 10.3.5 boost_1_31_0 boost-build boost-jam-3.1.10-1-macosxppc When I call bjam from the command line, both cwpro9 and cw toolsets (cw-tools.jam downloaded from CVS) result in the same errors: all the codewarrior jam files use -warn when the option should be -warnings, and there is no keyword "nounusedexpr". I edited one of the jam files to change -warn to -warnings and commented out nounusedexpr, but then greg_month.o doesn't get built and subsequently none of the libraries: Error : Nothing to do: no source or object files specified Then I tried a suggestion I saw in the archives - created an empty project for a static library in CodeWarrior and added the files in /boost_1_31_0/libs/regex/src/. This worked fine for the regex library (had to add the boost_1_31_0 path to the access paths in the project settings), but I am getting errors when I do the same for the filesystem library: Error : undefined identifier 'ETXTBSY' exception.cpp line 126 { ETXTBSY, fs::busy_error }, Error : undefined identifier 'lstat' operations_posix_windows.cpp line 318 return ::lstat( ph.native_file_string().c_str( Error : undefined identifier 'S_ISLNK' operations_posix_windows.cpp line 319 && S_ISLNK( path_stat.st_mode ); Error : undefined identifier 'ssize_t' operations_posix_windows.cpp line 489 ssize_t sz; Error : undefined identifier 'sz' operations_posix_windows.cpp line 490 while ( (sz = ::read( infile, buf.get(), bu Error : undefined identifier 'sz' operations_posix_windows.cpp line 491 && (sz = ::write( outfile, buf.get(), Error : undefined identifier 'sz' operations_posix_windows.cpp line 496 if ( sz != 0 ) Error : undefined identifier 'pathconf' operations_posix_windows.cpp line 509 long path_max = ::pathconf( ".", _PC_PATH_MAX ); Is there something else I need to include or define? Thanks a lot! Jane

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statically linking to Boost.Threads with OSX (darwin)
by Simmons, Aaron 14 Sep '04

14 Sep '04

I've built and installed boost on a Mac OSX system (with the 'darwin' toolset). I would like to use static linking. However, the installer is only building the .dylib version of libboost_thread and not the .a version. I thought only Win32 was forced to use dynamic linking? Is there a similar issue on OSX? Thanks, Aaron Simmons

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boost::ublas and gaussian elimination
by Mattias Brändström 14 Sep '04

14 Sep '04

Hello! I would like to do gaussian elimination using uBLAS. It seems that there are many of the tools needed to do gaussian elimination present but I can't actually find a solver. Is there one in uBLAS or has anyone here written one using uBLAS? Thanks in advance! Regards, Mattias

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Re: printing out the full path
by Fred J. 13 Sep '04

13 Sep '04

I think I gave up, I tried every thing and read all I can, I am not able to print out the full path for files in a given directroy, here is another try, cann't figure out whats wrong. any idea why? thanks #include "/usr/include/boost/filesystem/operations.hpp" #include "/usr/include/boost/filesystem/fstream.hpp" #include "/usr/include/boost/filesystem/path.hpp" #include <iostream> #include <string> namespace fs = boost::filesystem; int main(){ fs::path full_path( fs::initial_path() ); char* some_path = "/home/sam/"; full_path = fs::system_complete( fs::path( some_path, fs::native ) ); fs::directory_iterator end_itr; for ( fs::directory_iterator itr( full_path ); itr != end_itr; ++itr ) { std::cout << full_path.native_file_string() << std::endl; } } __________________________________ Do you Yahoo!? Yahoo! Mail - 50x more storage than other providers! http://promotions.yahoo.com/new_mail

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help with regex library matching
by Andrew Dennison 13 Sep '04

13 Sep '04

I have having a problem determining if the regex library is working properly. I have run the regex regression tests, and all tests in the test.txt file pass. My problem however began with the following match: string: "orange and ba.ana and kiwi" expression: "\\.([a-z]+).*[ \t\n].*\\.([a-z]+)" expected result: match, captures 'range' and 'ana' real result: no match The code in question is this: bool result = false; std::string str = "orange and ba.ana and kiwi"; std::string exp(".([a-z]+).*[ \t\n].*\\.([a-z]+)"); try { boost::smatch what; boost::regex e(exp.c_str()); // use default format flags result = regex_match(str, what, e); if (result) { ... } } catch (std::runtime_error &e) { ... } ... It seems to consistently fail. This same example works in both Java and Perl, and with the PCRE C++ regex library. No exception is being caught either. I posted the actual code to show that i don't think i'm doing anything particularly unique - i call regex_match (though even regex_search fails to match). I even tried formatting a file for the regression test harness with this example, and it confirmed that this particular example does not succeed. Can someone please provide suggestions regarding: a) what is going wrong b) how to fix it It should be noted that i'm running linux, boost version 1.31.0, with the regex patch installed. Thanks.

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filesystem operations
by Fred J. 12 Sep '04

12 Sep '04

Hello I am having this compile error. maany thanks //boostDir.cpp #include "/usr/include/boost/filesystem/operations.hpp" #include "/usr/include/boost/filesystem/fstream.hpp" #include <iostream> namespace fs = boost::filesystem; int main(){ fs::remove_all("/home/sam/testingText.txt"); fs::create_directory("/home/sam/again"); } $ g++ boostDir.cpp -o boostdir /tmp/ccQb4t4C.o(.text+0x20): In function `main': : undefined reference to `boost::filesystem::path::path[in-charge](char const*)' /tmp/ccQb4t4C.o(.text+0x2b): In function `main': : undefined reference to `boost::filesystem::remove_all(boost::filesystem::path const&)' /tmp/ccQb4t4C.o(.text+0x6a): In function `main': : undefined reference to `boost::filesystem::path::path[in-charge](char const*)' /tmp/ccQb4t4C.o(.text+0x75): In function `main': : undefined reference to `boost::filesystem::create_directory(boost::filesystem::path const&)' collect2: ld returned 1 exit status _______________________________ Do you Yahoo!? Shop for Back-to-School deals on Yahoo! Shopping. http://shopping.yahoo.com/backtoschool

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printing out the full path
by Fred J. 12 Sep '04

12 Sep '04

Hello I am trying to print out the full "file path" to all the "only" files in a given dir. appriciate any help in checking this code out, I really don't know what not working. thanks #include "/usr/include/boost/filesystem/operations.hpp" #include "/usr/include/boost/filesystem/fstream.hpp" #include "/usr/include/boost/filesystem/path.hpp" #include <iostream> namespace fs = boost::filesystem; int main(){ fs::path full_path( fs::initial_path() ); full_path = fs::system_complete( fs::path( "/home/sam", fs::native ) ); fs::directory_iterator end_itr; for ( fs::directory_iterator itr( full_path ); itr != end_itr; ++itr ) { if ( !fs::is_directory( *itr)) std::cout << *itr << std::endl; } } __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo

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