c++ - Recursive function for listing all files in sub directories

Question

I'm trying to write a function that returns a list of all files on current folder and all of its sub folders. I wrote this code:

#include <iostream>
#include <dirent.h>
#include <cstring>

using namespace std;

int main() {
   DIR* dir; dirent* pdir;
   //From my workspace
   dir=opendir(".");     
   while (pdir=readdir(dir)) {
       if(/**********This pdir is a directory**********/) {
           /**********RECURSIVE CALL SHOULD BE HERE**********/
           cout<<pdir->d_name<<endl;
       }
   }
   closedir(dir);
   return 0;
}

I searched for it in google and I don't know how to:

• Check if the current pdir is directory
• Go inside the directory and perform the recursive call on it

Meanwhile I have everything on main because I still don't know what arguments the recursive function should have.

Any hints?

Answer 1

Here is a version using proposed standard filesystem library:

#include <iostream>
#include <filesystem>

using namespace std;
using namespace std::tr2::sys;

void main()
{   
  for (recursive_directory_iterator i("."), end; i != end; ++i) 
    if (!is_directory(i->path()))
      cout << i->path().filename() << "
";
}