boost::filesystem - relative paths

I have some path (Folder) that I'm searching:

Code:

---

for (directory_iterator It (Folder); It != EndIt; ++It) {

        Contents.push_back (*It);
}

---

Now, I have a map:

std::map<string, bfs::path>

The first member should contain the path of the file or folder (which is the second member) relative to Folder.

Does boost::filesystem provide a simple way to do this, or am I going to have to write my own function? path::relative_path ( ) seems to be of no help, because it will only return paths relative to the root (e.g. the drive letter on windows).

I bet you can find your answers at this site.

Well that's why I posted; there isn't anything I can see from the docs that does what I want. It's pretty trivial to implement, but I was suprised there's no "relative_to" function in the library.