#include <stdio.h>
#include <stdlib.h>
#include <assert.h>  //** need assert for malloc check

struct date {short day, month, year;};
typedef struct date * Datep;

typedef struct person {
  char * first;
  char * last;
  struct date birthday;
  struct person * friend;  //**
} Person;


int main(int argc, char ** argv){

  //Datep today = malloc(sizeof(Datep));
  Datep today = malloc(sizeof(struct date));  //**
  assert(today);  //**

  today->month = 2;
  today->day = 22;
  today->year = 2017;

  // create a pointer to a person
  Person * jane = malloc(sizeof(Person));
  assert(jane); //**
  jane->first = "Jane";
  jane->last = "Doe";
  jane->birthday = today;
  printf("jane: %s %s, %02d/%02d/%04d\n", jane->first, jane->last,
	 //jane->birthday).month, jane->birthday->day, jane->birthday->year);
   	 jane->birthday.month, jane->birthday.day, jane->birthday.year);

  free(today);  //**
  free(jane);   //**
}