List files in a folder but only files that starts with a number

I am trying to make a program that can scan a folder, and then list all files that starts with a number. Please help
I am trying to base my idea in this example code.

Code:

---

int main(void)
{
  DIR          *d;
  struct dirent *dir;
  d = opendir("/directory");
  if (d)
  {
    while ((dir = readdir(d)) != NULL)
    {
    printf("%s\n", dir->d_name);
    }

    closedir(d);
  }

  return(0);
}

---

The above program prints all files in a directory. Can someone help me how to filter the list files so then it will only print files starting with numbers?

The d_name element contains the name as a string, which can be treated much like a char array. Thus, you can check the first character, dir->d_name[0] to see if it is a digit. Use the isdigit function, and remember to #include <ctype.h>.

that make sense. tnx i will try this