There are a number of differences. Some were, I believe, Boost changes that were never propagated. For example, there is no path.filename_is_dot() query (as discussed below, it would be less useful in std::filesystem anyway). There was also a good bit of late-breaking news on this front: Support for non-POSIX-like filesystems: Specify whether a string is … Read more
For UNIX (or at least POSIX) systems, have a look at wordexp: #include <iostream> #include <wordexp.h> using namespace std; int main() { wordexp_t p; char** w; wordexp( “$HOME/bin”, &p, 0 ); w = p.we_wordv; for (size_t i=0; i<p.we_wordc;i++ ) cout << w[i] << endl; wordfree( &p ); return 0; } It seems it will even … Read more
In new versions of boost (starting in 1.60), you can use boost::filesystem::relative. (See the documentation here.) #include <boost/filesystem.hpp> #include <iostream> namespace fs = boost::filesystem; int main() { fs::path parentPath(“/home/user1/”); fs::path childPath(“/home/user1/Downloads/Books”); fs::path relativePath = fs::relative(childPath, parentPath); std::cout << relativePath << std::endl; }
With C++17 and its std::filesystem::relative, which evolved from boost, this is a no-brainer: #include <filesystem> #include <iostream> namespace fs = std::filesystem; int main() { const fs::path base(“/is/the/speed/of/light/absolute”); const fs::path p(“/is/the/speed/of/light/absolute/or/is/it/relative/to/the/observer”); const fs::path p2(“/little/light/races/in/orbit/of/a/rogue/planet”); std::cout << “Base is base: ” << fs::relative(p, base).generic_string() << ‘\n’ << “Base is deeper: ” << fs::relative(base, p).generic_string() << ‘\n’ << … Read more
The tut3 example is what you’re looking for: See it Live on Coliru Here’s a simplified version based on c++11: Live On Coliru #include <boost/filesystem.hpp> #include <boost/range/iterator_range.hpp> #include <iostream> using namespace boost::filesystem; int main(int argc, char *argv[]) { path p(argc>1? argv[1] : “.”); if(is_directory(p)) { std::cout << p << ” is a directory containing:\n”; for(auto& … Read more
There’s a third enum argument to copy_file, boost::filesystem::copy_option::overwrite_if_exists copy_file(source_path, destination_path, copy_option::overwrite_if_exists); https://www.boost.org/doc/libs/1_75_0/libs/filesystem/doc/reference.html