C++ Filesystem Operations Example

/* FILESYSTEM OPERATIONS EXAMPLE
 *
 * This program gets the list of files in the directory from which this program
 * is ran, and outputs said list without sorting it.
 *
 * This program uses <dirent.h> to accomplish this. However, there's no
 * standardized library to do this in C++.
 *
 * I apologize in advance for making this program run in its entirety within
 * main().
 */

#include <dirent.h>
#include <iostream>
using namespace std;

int main(){

    // initialize variables

    DIR *dp; // pointer used to store files list
    struct dirent *dirp; // pointer to an item in files list
    string db[64]; // database to which the files list will be written to
    char index = 0;

    // open the directory and fill db[] with its contents
    dp = opendir("./");
    while((dirp = readdir(dp)) != NULL){
        db[index] = string(dirp->d_name);
        index ++;
    }
    closedir(dp);

    // output db[]
    for(char i = 0; i < index; i ++){
        cout << db[i] << endl;
    }

    // the end
    return 0;

}