/* 
* Code example for CP264 Data Structures II
* Array of structures
* HBF 
*/

#include <stdio.h>
#include <string.h>

typedef struct {
  int month;
  int day;
  int year;
} date;

typedef struct {
  long int id;
  char name[20];
  char gender;
  int age;
  date rday;
  date *sday;
  char address[40];
} student;

void display0(student);
void display1(student*);
void display_all(student*, int);

int main(){
  int count = 2;
  student s[count]; 
  s[0].id = 54321;
  strcpy(s[0].name, "John"); 
  s[0].gender = 'M';
  s[0].rday.month = 1;  
  s[0].rday.day = 1;
  s[0].rday.year = 2017;
  s[0].sday = &s[0].rday;

  s[1] = s[0];
  s[1].id = 12345;
  strcpy(s[1].name, "Peter"); 


  display0(s[0]);
	
  student *p = &s[0]; 
  display1(p);
 
  display_all(s, count);
  return 0;
}

void display0(student p){
  printf("ID:%d\nName:%s\nstart day: %d/%d/%d\n\n", p.id,  p.name, p.sday->month, p.sday->day, p.sday->year);
}

void display1(student *p){
  printf("ID:%d\nName:%s\nstart day: %d/%d/%d\n\n", p->id,  p->name, p->sday->month,p->sday->day,p->sday->year);
}

void display_all(student *p, int n){
  int i;
  for (i = 0; i<n; i++)
  printf("ID:%d\nName:%s\nstart day: %d/%d/%d\n\n", (p+i)->id, (p+i)->name, (p+i)->sday->month,(p+i)->sday->day,(p+i)->sday->year);
}

/*
ID:54321
Name:John
start day: 1/1/2017

ID:54321
Name:John
start day: 1/1/2017

ID:54321
Name:John
start day: 1/1/2017

ID:12345
Name:Peter
start day: 1/1/2017
*/