C++ like python os.walk

walk.cpp

#include <vector>
#include <tuple>
#include <boost/filesystem.hpp>

typedef std::tuple<boost::filesystem::path, std::vector<boost::filesystem::path>, std::vector<boost::filesystem::path>> WALK_ITEM;
typedef std::vector<WALK_ITEM> WALK_PATHS;

void display(const WALK_ITEM &item)
{
    boost::filesystem::path p(get<0>(item));
    std::vector<boost::filesystem::path> dirs(get<1>(item));
    std::vector<boost::filesystem::path> files(get<2>(item));
    std::cout << "path: " << p << std::endl;
    std::cout << "directory: " << std::endl;
    for (std::vector<boost::filesystem::path>::const_iterator it(dirs.begin()); it != dirs.end(); ++it)
    {
        cout << " " << (*it).filename() << std::endl;
    }
    std::cout << "files: " << std::endl;
    for (std::vector<boost::filesystem::path>::const_iterator it(files.begin()); it != files.end(); ++it)
    {
        cout << " " << (*it).filename() << std::endl;
    }
    cout << std::endl;
}

bool walk(const boost::filesystem::path &p, WALK_PATHS &data)
{
    try {        
        if (boost::filesystem::is_directory(p)) {
            std::vector<boost::filesystem::path> dirs;
            std::vector<boost::filesystem::path> files;
            typedef std::vector<boost::filesystem::path> vec;
            vec v;
            copy(boost::filesystem::directory_iterator(p), boost::filesystem::directory_iterator(), std::back_inserter(v));
            for (vec::const_iterator it(v.begin()); it != v.end(); ++it)
            {
                if (boost::filesystem::is_directory(*it)) {
                    dirs.push_back(*it);               
                } else if (boost::filesystem::is_regular_file(*it)) {
                    files.push_back(*it);
                }
            }
            data.push_back(make_tuple(p, dirs, files));
            for (vec::const_iterator it(dirs.begin()); it != dirs.end(); ++it)
            {
                walk(*it, data);
            }
            return true;        
        }        
    } catch (std::exception e) {
        std::cout << "error: " << e.what() << std::endl;
    }
    return false;
}

int main()
{
    FS::path p("C:\\");
    WALK_PATHS paths;
    if (walk(p, paths)) {
        for (WALK_PATHS::const_iterator it(paths.begin()); it != paths.end(); ++it) {
            display((*it));
        }
    } else {
        cout << "Walk " << p.c_str() << " failure..." << endl;
    }
    return 0;
}