/* Filename:  arithmetic.cpp

   Author:  Br. David Carlson
            Br. Isidore Minerd

   Date:  January 11, 2005

   Modified: July 16, 2009

   This program tests various arithmetic operations and rounding
   functions.  Each test is explained in the screen output that
   precedes each answer.

   Tested with:
      Microsoft Visual C++ 6.0
      Microsoft Visual C++ .NET
      Microsoft Visual Studio 2008
      g++ under Linux
*/

#include <iostream>
using namespace std;

int main(void)
   {
   int IntNum, IntAnswer;
   float FloatAnswer;
   
   cout << "Test 1:" << endl;
   IntNum = 4;
   cout << "IntNum initially is " << IntNum << endl;
   IntAnswer = IntNum + 5;
   cout << "IntAnswer = IntNum + 5 puts into IntAnswer the value "
      << IntAnswer << endl;
      
   cout << endl << "Test 2:" << endl;
   IntAnswer++;
   cout << "After doing IntAnswer++, printing IntAnswer gives "
      << IntAnswer << endl;
   
   cout << endl << "Test 3:" << endl;
   IntAnswer = 50;
   cout << "We reset IntAnswer to value " << IntAnswer << endl;
   cout << "Putting IntAnswer++ inside an output statement gives "
      << IntAnswer++ << endl;
   cout << "Afterwards, the value of IntAnswer is " << IntAnswer << endl;

   cout << endl << "Test 4:" << endl;
   IntAnswer = 22;
   cout << "We reset IntAnswer to value " << IntAnswer << endl;
   cout << "Putting ++IntAnswer inside an output statement gives "
      << ++IntAnswer << endl;
   cout << "Afterwards, the value of IntAnswer is " << IntAnswer << endl;

   cout << endl << "Test 5:" << endl;
   IntNum = 4;
   cout << "We reset IntNum to value " << IntNum << endl;
   cout << "Printing 2 * IntNum - 3 gives " << 2 * IntNum - 3 << endl;

   cout << endl << "Test 6:" << endl;
   IntNum = 4;
   cout << "We reset IntNum to value " << IntNum << endl;
   cout << "Printing 2 * (IntNum - 3) gives " << 2 * (IntNum - 3) << endl;
   
   cout << endl << "Test 7:" << endl;
   IntAnswer = 15 / 4;
   cout << "IntAnswer = 15 / 4 puts into IntAnswer the value "
      << IntAnswer << endl;
   
   cout << endl << "Test 8:" << endl;
   FloatAnswer = 15 / 4;
   cout << "FloatAnswer = 15 / 4 puts into FloatAnswer the value "
      << FloatAnswer << endl;

   cout << endl << "Test 9:" << endl;
   FloatAnswer = 15.0 / 4.0;
   cout << "FloatAnswer = 15.0 / 4.0 puts into FloatAnswer the value "
      << FloatAnswer << endl;   
   
   return 0;
   }