// *****************************************************************
// Author:			Zhixiang Chen
// Class:			CSCI/CMPE 1170, 2009
// Lab Optional 2:	Function overloading and static local variables
// Date:			January 17, 2009
// Comment: The code here is meant to be revised.
//
//-----------------------------------------------------------------
//
// This lab exercise is to show how to give multiple definitions to 
// to a function and how to use different definitions. We also try 
// to experiment static local variables
//
// Compile and run your program. When everything is fine,
// print your .cpp and .h files and turn them to me or the TA.
// *****************************************************************

#include < iostream >
#include <fstream >
#include < string >
#include < cstring >
#include < cmath> 
#include <cstdlib>
#include <iomanip>

//include header file
#include "lab_optional_2_head.h"

using namespace std; 

int main( )
{

	/***************************************************************
	 Part A. Practice function overloading
		I have defined three copies of the function swapAndLarger
		but need to complete the fourth copy to deal with C++ strings
	 ***************************************************************/

	//variable declaration
	int number1, number2, intLarger;		//vars to store two int values
	char ch1, ch2, charLarger;				//vars to store to char values
	string word1, word2, wordLarger;		//vars for two C++ strings
	char str1[50], str2[50], strLarger[50];	//vars for two arrays of 50 chars
	
	//get info from the user
	cout<<"Enter two integers => "; 
	cin>>number1>>number2;			//get two integers
	cout<<"Enter two characters => "; 
	cin>>ch1>>ch2;					//get two  characters
	cout<<"Enter two words => "; 
	cin>>word1>>word2;				//get two C++ strings
	cout<<"Enter two words again => "; 
	cin>>str1>>str2;				//get two C strings

	//call swapAndLarger() to deal with integers
	intLarger = swapAndLarger(number1, number2); //the type of paramters determines which definition is used
	cout<<"The larger of " <<number1 <<" and "<< number2 <<" is " << intLarger<<endl<<endl; 

	//call swapAndLarger() to deal with chars
	charLarger = swapAndLarger(ch1, ch2); //the type of paramters determines which definition is used
	cout<<"The larger of " <<ch1 <<" and "<< ch2 <<" is " << charLarger<<endl<<endl; 
	
	//call swapAndLarger() to deal with C++ string
	wordLarger = swapAndLarger(word1, word2); //the type of paramters determines which definition is used
	cout<<"The larger of " <<word1 <<" and "<< word2 <<" is " << wordLarger<<endl<<endl; 
	
	//call swapAndLarger() to deal with C++ string
	strcpy(strLarger, swapAndLarger(str1, str2)); //the type of paramters determines which definition is used
	cout<<"The larger of " <<str1 <<" and "<< str2 <<" is " << strLarger<<endl<<endl; 
	
	
	/***************************************************************
	 Part A. Practice static local variables
	 ***************************************************************/
	for (int i =0; i < 5; i++)
	{
		cout<<"\nAt loop iteration " <<i << "........" <<endl;
		
		//call fuction cat() with a static local variables
		//and see how this variable changes
		cat( ); 

		//call fuction dog() with a static local variables
		//and see how this variable changes
		dog( ); 
	}


	//well done and exit
	return 0; 
}