Question

I am not familiar with C++ as I am a C# developer.

In my project, I need to delete all folders of one week before. In C++, how can I get the list of the folders of one week before based on the current system date time?

I am working on Eclipse IDE running on Ubuntu 10.10.

If you could provide some sample of code, that would be great.

Thanks in advance and your help is much appreciated!

Answer 1

With boost:

#include <boost/foreach.hpp>
#include <boost/filesystem.hpp>

int main(int, char**)
{
    time_t one_week_ago = std::time(NULL) - (7 * 24 * 3600);

    boost::filesystem::directory_iterator dir("/tmp"), end;

    BOOST_FOREACH(const boost::filesystem::path& p, std::make_pair(dir, end))
        if(boost::filesystem::is_directory(p))
            if(boost::filesystem::last_write_time(p) < one_week_ago)
                boost::filesystem::remove_all(p);
}

or without using boost::foreach

#include <boost/filesystem.hpp>

int main(int, char**)
{
    time_t one_week_ago = std::time(NULL) - (7 * 24 * 3600);

    boost::filesystem::directory_iterator dir("/tmp"), it, end;

    for(it = dir; it != end; it++)
    {
        const boost::filesystem::path& p = *it;
        if(boost::filesystem::is_directory(p))
            if(boost::filesystem::last_write_time(p) < one_week_ago)
                boost::filesystem::remove_all(p);
    }
}