// Program Name:   Math_1LaX4.exe
// Author:         Tyler Travis, Eruption Software
//                 www.travis-usa.com
// Date:           1/12/00


//This program asks the user to enter two integers 
//and a character. Based on the character entered,
//the program will call 1 of 3 functions that will
//add, subtract, or multiply the two integers entered


#include<iostream.h>

void add(int num1, int num2);
void subtract(int num1, int num2);
void multiply(int num1, int num2);

void main()
  {
	 char answer;

	 cout<<""<<endl;
	 cout<<" DPR226 Tutorial 1, Lesson A, Exercise 4"<<endl;
	 cout<<" By Tyler Travis"<<endl<<endl;

	do
	{
     int num1 = 0, num2 = 0;
	 char oper;

	 cout<<""<<endl;
     cout<<" Enter 1st Integer: ";
     cin>>num1;

     cout<<" Enter 2nd Integer: ";
     cin>>num2;

	 cout<<" Add (a), Subtract (s), or Multiply (m): ";
     cin>>oper;

	 switch (oper)
	 {  case 'a':
	    case 'A':
           add(num1, num2);
           break;
	    case 's':
	    case 'S':
           subtract(num1, num2);
           break;
	    case 'm':
	    case 'M':
           multiply(num1, num2);
           break;
	 }


     cout<<""<<endl;
     cout<<" Again? (y/n): ";
     cin>>answer;
    }

	while (answer == 'y' || answer == 'Y');

  }


void add(int num1, int num2)
{
	cout<<""<<endl;    
	 cout<<" The total of "<<num1<<" + "<<num2
             <<" is "<<num1 + num2<<endl;
}
void subtract(int num1, int num2)
{
	cout<<""<<endl;    
	 cout<<" The total of "<<num1<<" - "<<num2
             <<" is "<<num1 - num2<<endl;
}
void multiply(int num1, int num2)
{
	cout<<""<<endl;    
	 cout<<" The total of "<<num1<<" X "<<num2
             <<" is "<<num1 * num2<<endl;
}