/*look at nested structures i.e. structures that contain other 
structures  */
#include <stdio.h>
#include <string.h>

int main (void)
{
  /* define the type using the third method illustrated in
  struct.c */

  typedef struct
  {
      char chrisname[30],surname[30];
      struct
      {
          int day;
          int month;
          int year;
      } dob;
  } persondetails;
  /* this is a nested stucture because persondetails contains another
  structure dob within it */

  persondetails p; /* variable declaration */
  
  /* assign some values to the fields in variables */
  strcpy(p.chrisname,"Santa");
  strcpy(p.surname,"Claus");
  /*assign to values to the fields within the nested structure */
  p.dob.day = 25;
  p.dob.month = 12;
  p.dob.year = 1765;
  
  printf("%s %s was born on %i/%i/%i\n",p.chrisname,p.surname,p.dob.day,p.dob.month,p.dob.year);
}