#include <stdio.h>
/*
 * String array and double pointer
 */
int main()
{
  /* String array */
  char *str_2d[] = {
    "abc"
  };
  
  str_2d[0] = "123";
  str_2d[1] = "789";
  
    /* Double pointer point to pointer of first element in array */
  char **str_arr = str_2d;
  
  printf("First element: %s\n", *str_2d);
  
  /* Move to next element */
  // *str_2d = *(str_2d + 1);
  
  // printf("Second element: %s\n", *str_2d);
  
  /* Move to previous element - Not working*/
  /*str_2d = *(str_2d - 1);*/
  
  printf("First element from double pointer: %s\n", *str_arr);
  printf("First element from double pointer: %s\n", str_arr[0]);
}