//arrayoftimes.cpp
//a very abbreviated version of time
#include<iostream>  //cout, endl
using namespace std;

class Time{
  public:
    void set(int hr, int min);
    void display();
  private:
    int hour;
    int minute;
  };

void Time::set(int hr, int min)
  {hour=hr; minute=min;}

void Time::display()
  {
  cout << hour << ':';
  if (minute<10)
    cout << '0';
  cout << minute;
  }

//global functions
//using an array as an a parameter
void firstandlast(Time theArray[ ],int arraySize);

//can use an array element as a parameter
Time swap( Time & a, Time & b);

int main()
  {
  Time schedule[5];
  //an array always uses the default constructor
  schedule[0].set(6,40);
  schedule[1].set(7,0);
  schedule[2].set(3,20);
  schedule[3].set(10,45);
  int i;
  for(i=0;i<=3;i++)
    {
    schedule[i].display();  //an entry calling a member function
    cout << endl;
    }

  firstandlast(schedule,4);  //no brackets when the
                                        //whole array is the argument
                                        //Arrays always passed by reference
  for(i=0;i<=3;i++)
    {
    schedule[i].display();
    cout << endl;
    }
    
  Time snack;
  snack.set(16,30);
  swap(snack,schedule[1]);  //an entry as an argument
  schedule[1].display();

  return 1;
  }

void firstandlast(Time theArray[ ],int arraySize)
  {
  cout << "First time : ";
  theArray[0].display();
  cout << endl;
  cout << "Last time : ";
  theArray[arraySize-1].display();
  cout << endl;
  //Let's change the array
  theArray[0].set(12,5);
  return;
  }
  
Time swap( Time & a, Time & b)
  {
  Time temp=a;
  a=b;
  b=temp;
  return a;
  }