// File: DaysElapsedInYear.cpp
// Days Elapsed application; uses polymorphism to access date info
// Prepared by Dr. Spiegel
 #include <iostream>
 #include <cstdlib>
 #include "Year.h"
 #include "LeapYear.h"

 using namespace std;

 /*!
  * Get date off command line
  * Print days elapsed in year to that date via polymorphic call to function
  * */    
 int main(int argc,char **argv)
 {if (argc==1) {
    cerr << "Form:  days <month> <day> <year>\n";
    exit(-1);
  }  
  int month=atoi(argv[1]), day=atoi(argv[2]), year=atoi(argv[3]);
  Year *theDate;
  // Initialize theDate to refer to the correct object type
  // Can use LeapYear to access static method
  if (Year::isLeapYear(year))
	  theDate=new LeapYear(month,day,year);
  else
	  theDate=new Year(month,day,year);
  cout << "Days Elapsed: " << theDate->daysElapsed() << endl;
 }