Forum programmazione

/*
* A function to list all contents of a given directory
* author: Danny Battison
* contact: gabehabe@hotmail.com
*/

#include <dirent.h> // directory header
#include <cstdio>

void listdir (const char *path)
{
    // first off, we need to create a pointer to a directory
    DIR *pdir = NULL; // remember, it's good practice to initialise a pointer to NULL!
    pdir = opendir (path); // "." will refer to the current directory
    struct dirent *pent = NULL;
    if (pdir == NULL) // if pdir wasn't initialised correctly
    { // print an error message and exit the program
        printf ("\nERROR! pdir could not be initialised correctly");
        return; // exit the function
    } // end if

    while (pent = readdir (pdir)) // while there is still something in the directory to list
    {
        if (pent == NULL) // if pent has not been initialised correctly
        { // print an error message, and exit the program
            printf ("\nERROR! pent could not be initialised correctly");
            return; // exit the function
        }
        // otherwise, it was initialised correctly. let's print it on the console:
        printf ("%s\n", pent->d_name);
    }

    // finally, let's close the directory
    closedir (pdir);
}

/** EXAMPLE USAGE **/
int main ()
{
    listdir ("C:\\");
    return 0;
}