How about casting
int* a = (int*)x;?

It lists files, you still need recursively delete directories beginning with deepest path. This calss will be more complex, handling configuration file and multitasking.

DirectoryReader.h:
...

You need to empty this folder I guess. That's how Windows works if you noticed.

Right now I am working on file listing class, it places all files in given subdirectory in vector of strings. If you...

This way or another, you should use iterators, to avoid exceeding string boundaries.

For example:

string str;
string::iterator iter_str = str.begin();

while(iter_str != str.end())
{...}

I don't really want to think at the moment, but I can post you my string reversing piece of code. Safe and elegant.

#include <string>

string str="shankhs";
reverse(str.begin(), str.end());