//********************************************************
//
// Assignment 5 - Functions
//
// Name: Elissa Huang
//
// Class: C Programming, Spring 2025
//
// Date: March 1, 2025
//
// Description: Program which determines overtime and
// gross pay for a set of employees with outputs sent
// to standard output (the screen).
//
// Functions called by a combination of by value and by
// reference.
//
//********************************************************
#include <stdio.h>
// constants
#define SIZE 5
#define OVERTIME_RATE 1.5f
#define STD_WORK_WEEK 40.0f
// function prototypes
float getHours (long int clockNumber);
void printHeader (void);
void printEmp (long int clockNumber[], float wageRate[], float hours[],
float overtimeHrs[], float grossPay[], int theSize);
// TODO: Add other function prototypes here as needed
void calcOT (float hours[], float overtimeHrs[], int theSize);
void calcGross (float wageRate[], float hours[], float overtimeHrs[], float grossPay[], int theSize);
int main()
{
// Variable Declarations
long int clockNumber[SIZE] = {98401,526488,765349,34645,127615}; // ID
float grossPay[SIZE]; // gross pay
float hours[SIZE]; // hours worked in a given week
int i; // loop and array index
float overtimeHrs[SIZE]; // overtime hours
float wageRate[SIZE] = {10.60,9.75,10.50,12.25,8.35}; // hourly wage rate
// process each employee
for (i = 0; i < SIZE; ++i)
{
// read in hours for the current employee
hours[i] = getHours (clockNumber[i]);
// TODO: Function call to calculate overtime hours
calcOT (hours, overtimeHrs, SIZE);
// TODO: Function call to calculate gross pay
calcGross (wageRate, hours, overtimeHrs, grossPay, SIZE);
}
// Print the header info
printHeader();
// Print all the employees - call by reference
printEmp (clockNumber, wageRate, hours,
overtimeHrs, grossPay, SIZE);
return (0);
} // main
//**************************************************************
// Function: getHours
//
// Purpose: Obtains input from user, the number of hours worked
// per employee and stores the result in a local variable
// that is passed back to the calling function.
//
// Parameters: clockNumber - The unique employee ID
//
// Returns: hoursWorked - hours worked in a given week
//
//**************************************************************
float getHours (long int clockNumber)
{
float hoursWorked; // hours worked in a given week
// Read in hours for employee
printf("\nEnter hours worked by emp # %06li: ", clockNumber
); scanf ("%f", &hoursWorked
);
// return hours back to the calling function
return (hoursWorked);
} // getHours
//**************************************************************
// Function: printHeader
//
// Purpose: Prints the initial table header information.
//
// Parameters: none
//
// Returns: void
//
//**************************************************************
void printHeader (void)
{
printf ("\n\n*** Pay Calculator ***\n");
// print the table header
printf("\nClock# Wage Hours OT Gross\n"); printf("------------------------------------------------\n");
} // printHeader
//*************************************************************
// Function: printEmp
//
// Purpose: Prints out all the employee information in a
// nice and orderly table format.
//
// Parameters:
//
// clockNumber - Array of employee clock numbers
// wageRate - Array of employee wages per hour
// hours - Array of number of hours worked by an employee
// overtimeHrs - Array of overtime hours for each employee
// grossPay - Array of gross pay calculations for each employee
// theSize - Number of employees to process
//
// Returns: Nothing (call by reference)
//
//**************************************************************
void printEmp (long int clockNumber[], float wageRate[], float hours[],
float overtimeHrs[], float grossPay[], int theSize)
{
int i; // loop index and array index
// access and print each employee
for (i = 0; i < theSize; ++i)
{
printf("%06li %5.2f %5.1f %5.1f %8.2f\n", clockNumber[i], wageRate[i], hours[i], overtimeHrs[i], grossPay[i]);
}
}
// TODO: Add other functions here as needed
// ... remember your comment block headers for each function
//**************************************************************
// Function: calcOT
//
// Purpose: Uses the number of hours worked per employee
// to calculate each of their hours of overtime and stores the
// the result in an array called overtimeHrs.
//
// Parameters: hours[], theSize
//
// Returns: void
//
//**************************************************************
// Function definition for calcOT (Call by Reference)
void calcOT (float hours[], float overtimeHrs[], int theSize)
{
// declare local variable(s)
int i;
for (i = 0; i < theSize; i++)
{
if (hours[i] > STD_WORK_WEEK) // OT
{
overtimeHrs[i] = hours[i] -STD_WORK_WEEK;
}
else // no OT
{
overtimeHrs[i] = 0.0;
}
}
// add in loop and code
}
//**************************************************************
// Function: calcGross
//
// Purpose: Uses the wage rate, hours, and overtime hours
// worked by each employee to calculate each of their gross
// pay and stores the result in an array called grossPay.
//
// Parameters: wageRate[], hours[], overtimeHrs[], grossPay[], theSize
//
// Returns: void
//
//**************************************************************
// Function definition for calcGross (Call by Reference)
void calcGross (float wageRate[], float hours[], float overtimeHrs[], float grossPay[], int theSize)
{
int i;
for (i = 0; i < theSize; i++)
{
if (overtimeHrs[i] > 0)
{
grossPay[i] = (overtimeHrs[i] * wageRate[i] * OVERTIME_RATE) + (STD_WORK_WEEK * wageRate[i]);
}
else
{
grossPay[i] = hours[i] * wageRate[i];
}
}
}