boost-filesystem

I know this sounds stupid, but look at this simple example (working dir should have more than one item): #define BOOST_FILESYSTEM_VERSION 3 #include <boost/filesystem.hpp> #include <cassert> int main() { using namespace boost::filesystem; directory_iterator it("./"); directory_iterator it_copy = it; ++it; assert(it_copy != it); return 0; } it_copy is modified together with it ! (boost 1.45) What considerations could lead to such design ( directory_iterator is something like smart ptr)? I just need to save a copy of directory_iterator to use it later. If you take a look at the reference you

I want to create a directory path = "$HOME/somedir" . I've tried using boost::filesystem::create_directory(path) , but it fails - apparently the function doesn't expand system variables. How can I do it the simplest way? (note: in my case the string path is constant and I don't know for sure if it contains a variable) edit: I'm working on Linux (although I'm planning to port my app to Windows in the near future). Fred Nurk Use getenv to get environment variables, including HOME . If you don't know for sure if they might be present, you'll have to parse the string looking for them. You could

What methods of the boost::filesystem library can help me to get a path relative to another path? I have a path /home/user1/Downloads/Books and a path /home/user1/ . Now I want to get a path Downloads/Books . Taken from a link found by following the ticket Nicol linked to: template < > path& path::append< typename path::iterator >( typename path::iterator begin, typename path::iterator end, const codecvt_type& cvt) { for( ; begin != end ; ++begin ) *this /= *begin; return *this; } // Return path when appended to a_From will resolve to same as a_To boost::filesystem::path make_relative( boost:

How should I use directory_iterator to list directory files (not recursive)? Also what header files / libs should I add/link or other settings I should make? I'm using boost in my project but by some reason directory_iterator is "underclared identifier" while I can use other boost features. Update Another solution: #include <filesystem> #include <boost/filesystem.hpp> #include <iostream> using namespace boost::filesystem; for (directory_iterator itr(path_ss); itr!=directory_iterator(); ++itr) { cout << itr->path().filename() << ' '; // display filename only if (is_regular_file(itr->status()))

What's the best way to expand ${MyPath}/filename.txt to /home/user/filename.txt or %MyPath%/filename.txt to c:\Documents and settings\user\filename.txt with out traversing the path string looking for environement variables directly? I see that wxWidgets has a wxExpandEnvVars function. I can't use wxWidgets in this case, so I was hoping to find a boost::filesystem equivalent or similar. I am only using the home directory as an example, I am looking for general purpose path expansion. For UNIX (or at least POSIX) systems, have a look at wordexp : #include <iostream> #include <wordexp.h> using