/*
EXAMPLE 7-2 (EX07_02.CPP)
*/

//PREPROCESSOR DIRECTIVES
#include <iostream.h>

//MAIN FUNCTION
int main()
{

//a.
int number = 5;
int sum = 0;
do
{
	sum += number;
	--number;
}//END DO/WHILE
while (number > 0);
cout << "The sum is " << sum << endl;

//b.
number = 0;
sum = 0;
do
{
  sum += number;
  ++number;
}//END DO/WHILE
while (number != 5);
cout << "The sum is " << sum << endl;

//c.  INFINITE LOOP

//d.
int maxNumber = 5;
number = 0;
double total = 0;
do
{
   ++number;
	 total += number;
}//END DO/WHILE
while (number != maxNumber);
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
cout << "The average of the first " << maxNumber
				<< " positive integers is :  "   <<  total/maxNumber << endl;

//e.
const  char PERIOD = '.';		//DEFINE PERIOD CONSTANT

char inChar = ' ';			//DEFINE USER ENTRY VARIABLE
int charCount = 0;			//DEFINE CHAR COUNTER 

cout << "\nEnter several characters, pressing ENTER after each\n"
       << "entry. Terminate the input with a period." << endl;
do
{
     ++charCount;
		 cin >> inChar;
}//END DO/WHILE
while (inChar != PERIOD);		//CHARACTER A PERIOD?
cout << "The number of characters entered was " <<  --charCount << endl;


	//RETURN
	return 0;
}//END main()