How do I traverse into directories?

If I have a folder that has, say, 5 sub-folders, and I want to search for certain files inside each sub-folder(my program is present inside the main folder). How do I make my program traverse into and out of those folders in C++?

I need my program to run on Windows plat开发者_JAVA百科forms.

Thanks!

The most obvious route is to use FindFirstFile and FindnextFile, along with SetCurrentDirectory. One obvious way to traverse the subdirectories is to make your directory traversal routine recursive.

Just use boost's recursive_directory_iterator, and filter the files/directory you want.

boost::filesystem::recursive_directory_iterator iter("your\path");
boost::filesystem::recursive_directory_iterator end;
for (; iter != end; ++iter) {
    // check for things like is_directory(iter->status()), iter->filename() ....
    // optionally, you can call iter->no_push() if you don't want to
    // enter a directory
    // see all the possibilities by reading the docs.
}

Just use a stack and implement Depth-First-Search (see wiki) http://en.wikipedia.org/wiki/Depth-first_search

This way you can (with a small as possible stack) traverse any tree like structure (and Windows' file system is tree-like).