/*  
 * Example of the ``while'' statement
 * 
 * Compute the payroll for a company 
 * Hanly and Koffman, 5ed, Figure 5.4, page 217 
 */

#include <stdio.h>

int
main(void)
{
      int    number_emp, count_emp; 	
      double total_pay, hours, rate, pay; 

      printf("Enter number of employees> ");
      scanf("%d", &number_emp);

      /* Compute each employee's pay and add it to the payroll. */
      total_pay = 0.0;
      count_emp = 0;

      while (count_emp < number_emp) {
	     printf("Hours> ");
	     scanf("%lf", &hours);

	     printf("Rate > $");
	     scanf("%lf", &rate);

	     pay = hours * rate;
	     printf("Pay is $%6.2f\n\n", pay);

	     total_pay = total_pay + pay;   

	     count_emp = count_emp + 1; 
	     // count_emp += 1;   /* compound assignment operators */

      }

      printf("All employees processed\n");
      printf("Total payroll is $%8.2f\n", total_pay);

      return (0);
}