- Boost-users - lists.boost.org

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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regex and std::towlower
by Tim Clemons 11 Sep '04

11 Sep '04

I'm attempting to compile against the boost_regex headers on Solaris 2.8, using gcc and STLport. I'm encountering the following compile error: /boost/boost/regex/v4/regex_traits.hpp: In static member function `static boost::regex_wchar_type boost::c_regex_traits<boost::regex_wchar_type>::translate(boost::regex_wchar_type, bool)': /export/build/pixie/aegis-build/dev/liberty/common/cpp/utils/boost/boost/regex/v4/regex_traits.hpp:290: error: `towlower' is not a member of `_STL' Any ideas? This appears to be specific to Solaris, as the code base compiles alright on Linux. Appreciate the help. -- Tim.

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LNK1104: cannot open file 'libboost_unit_test_framework-vc71-sgd.lib'
by Roy Varghese 11 Sep '04

11 Sep '04

Hi I am trying to build a test program that comes with the Genserial library (http://genserial.soureforge.net) which uses boost. I get the following error while linking: test fatal error LNK1104: cannot open file 'libboost_unit_test_framework-vc71-sgd.lib' This library seems to be included because of these lines in one of the cpp files: #include <boost/test/unit_test.hpp> using boost::unit_test_framework::test_suite; I verified that the file does exist in boost\lib however the naming is different, it has a version number suffix to it "libboost_unit_test_framework-vc71-sgd-1_31.lib'" hence the problem with the linker. How do I go about resolving this, short of renaming all the lib files? Thanks Roy --><8---Profound quote snipped by email server--><8---.

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Boost.Build Main vs. exe
by Steven T. Hatton 10 Sep '04

10 Sep '04

There seem to be two different general approaches to using bjam. One is to use "objects" such as /Main/ and /Library/. This is described here: http://www.boost.org/tools/build/jam_src/Jamfile.html The other approach is to use "rules" such as /exe/ and /lib/. This is described here: http://www.boost.org/tools/build/v1/build_system.htm Am I correct in viewing these as separate approaches that I am free to choose between? Is one approach preferable to the other in terms of future compatability, or generally accepted practices? -- Regards, Steven

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High level question on iterator_adaptor vs iterator_facade
by Brian Braatz 10 Sep '04

10 Sep '04

I have worked through the tutorial on iterator_facade. (extremely cool library)- and I am reading about iterator_adapter- but what I am not seeing is the high level picture here. My Question: In a nutshell- what is the basic difference between iterator_adapter and iterator_facade? When would I use one over the other? Any thoughts appreciated thanks Brian

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Newbie Q
by Jon Handler 10 Sep '04

10 Sep '04

Hi, I'm failing to build either bjam or (eventually, I got the binary) the boost library. I'm using Win 2K, VC++ 6, boost 1.31.0. In setting environment variables, I set MSVC, but couldn't figure out VISUALC (since I don't have a VC++ directory). When I try to build, I get: D:\boost_1_31_0>bjam "-sTOOLS=msvc" install [ Fails to find PYTHON ] ...patience... ...found 7592 targets... ...updating 3079 targets... MkDir1 C:\Boost spawn: No such file or directory Thanks, Jon

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boost lib naming conventions on OSX (darwin)
by Simmons, Aaron 10 Sep '04

10 Sep '04

I have built and installed boost on Mac OSX (using the 'darwin' toolset). I've noticed that the libboost libraries that are built don't follow the boost naming conventions. Specifically, they don't include the 'osx' toolset identifier as specified in the 'Getting Started' documentation at http://boost.org/more/getting_started.html#Results Is this a known issue? Thanks, Aaron Simmons

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