Find folder and files in directory (for windows, unix style)

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

bool main() {
    DIR *dir;
    struct dirent *ent;
    if ((dir = opendir ("c:\\")) != NULL) {
        /* print all the files and directories within directory */
        while ((ent = readdir (dir)) != NULL) {
            printf ("%s\n", ent->d_name);
        }
        closedir (dir);
    } else {
        /* could not open directory */
        perror ("");
        return EXIT_FAILURE;
    }
    system("pause");
    return true;
}