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  1. //********************************************************
  2. //
  3. // Assignment 5 - Functions
  4. //
  5. // Name: Christopher J. Golebiowski
  6. //
  7. // Class: C Programming, Spring 2026
  8. //
  9. // Date: 08-Mar-2026
  10. //
  11. // Description: Program which determines overtime and 
  12. // gross pay for a set of employees with outputs sent 
  13. // to standard output (the screen).
  14. //
  15. // Functions called by a combination of by value and by
  16. // reference.
  17. //
  18. //********************************************************
  19.  
  20. #include <stdio.h>
  21.  
  22. // constants
  23. #define SIZE 5
  24. #define OVERTIME_RATE 1.5f
  25. #define STD_WORK_WEEK 40.0f
  26.  
  27. // function prototypes
  28. float getHours (long int clockNumber);
  29. void printHeader (void);
  30. void printEmp  (long int clockNumber[], float wageRate[], float hours[],
  31.                 float overtimeHrs[], float grossPay[], int theSize);
  32. float calculateOvertimeHours (float hours, float standardWorkWeekHours);
  33. float calculateGrossPay (float hours, float overtimeHours, float wage, float otWageRate);
  34.  
  35. int main()
  36. {
  37.  
  38.     // Variable Declarations
  39.  
  40.     long  int clockNumber[SIZE] = {98401,526488,765349,34645,127615}; // ID
  41.     float grossPay[SIZE];     // gross pay
  42.     float hours[SIZE];        // hours worked in a given week
  43.     int   i;                  // loop and array index
  44.     float overtimeHrs[SIZE];  // overtime hours
  45.     float wageRate[SIZE] = {10.60,9.75,10.50,12.25,8.35}; // hourly wage rate
  46.  
  47.     // process each employee
  48.     for (i = 0; i < SIZE; ++i)
  49.     {
  50.  
  51.         // read in hours for the current employee
  52.         hours[i] = getHours (clockNumber[i]); 
  53.  
  54.         // calculate overtime hours
  55.         overtimeHrs[i] = calculateOvertimeHours (hours[i], STD_WORK_WEEK);
  56.  
  57.         // calculate gross pay 
  58.         grossPay[i] = calculateGrossPay (hours[i], overtimeHrs[i], wageRate[i], OVERTIME_RATE);
  59.  
  60.     }
  61.  
  62.     // Print the header info
  63.     printHeader();
  64.  
  65.     // Print all the employees - call by reference
  66.     printEmp (clockNumber, wageRate, hours,
  67.                overtimeHrs, grossPay, SIZE);
  68.  
  69.     return (0);
  70.  
  71. }  // main
  72.  
  73. //**************************************************************
  74. // Function: getHours 
  75. // 
  76. // Purpose: Obtains input from user, the number of hours worked 
  77. // per employee and stores the result in a local variable 
  78. // that is passed back to the calling function. 
  79. // 
  80. // Parameters: clockNumber - The unique employee ID
  81. // 
  82. // Returns: hoursWorked - hours worked in a given week
  83. //  
  84. //**************************************************************
  85.  
  86. float getHours (long int clockNumber) 
  87. { 
  88.  
  89.     float hoursWorked; // hours worked in a given week
  90.  
  91.     // Read in hours for employee
  92.     printf("\nEnter hours worked by emp # %06li: ", clockNumber); 
  93.     scanf ("%f", &hoursWorked); 
  94.  
  95.     // return hours back to the calling function
  96.     return (hoursWorked);
  97.  
  98. } // getHours
  99.  
  100. //**************************************************************
  101. // Function: printHeader
  102. // 
  103. // Purpose: Prints the initial table header information.
  104. // 
  105. // Parameters: none
  106. // 
  107. // Returns: void
  108. //  
  109. //**************************************************************
  110.  
  111. void printHeader (void) 
  112. { 
  113.  
  114.     printf ("\n\n*** Pay Calculator ***\n");
  115.  
  116.     // print the table header
  117.     printf("\nClock# Wage  Hours  OT      Gross\n");
  118.     printf("------------------------------------------------\n");
  119.  
  120. } // printHeader
  121.  
  122. //************************************************************* 
  123. // Function: printEmp 
  124. // 
  125. // Purpose: Prints out all the employee information in a
  126. // nice and orderly table format.
  127. // 
  128. // Parameters: 
  129. //
  130. //     clockNumber - Array of employee clock numbers
  131. //     wageRate - Array of employee wages per hour
  132. //     hours - Array of number of hours worked by an employee
  133. //     overtimeHrs - Array of overtime hours for each employee
  134. //     grossPay - Array of gross pay calculations for each employee
  135. //     theSize - Number of employees to process 
  136. // 
  137. // Returns: Nothing (call by reference)
  138. //  
  139. //**************************************************************
  140.  
  141. void printEmp (long int clockNumber[], float wageRate[], float hours[],
  142.                 float overtimeHrs[], float grossPay[], int theSize)
  143. {
  144.  
  145.     int i; // loop index
  146.  
  147.     // access and print each employee
  148.     for (i = 0; i < theSize; ++i)
  149.     {
  150.         printf("\n %06li %5.2f %4.1f %4.1f %8.2f", clockNumber[i], wageRate[i], hours[i], overtimeHrs[i], grossPay[i]);
  151.     }
  152. }
  153.  
  154.  
  155. //**************************************************************
  156. // Function: calculateOvertimeHours 
  157. // 
  158. // Purpose: Calculates the number of overtime hours worked 
  159. // based on total hours worked by the employee and the number  
  160. // of hours in a standard work week.  The result is 
  161. // passed back to the calling function. 
  162. // 
  163. // Parameters: 
  164. //      hours - number of hours worked by employee
  165. //      standardWorkWeekHours - number of hours in a standard work week
  166. // 
  167. // Returns: overtimeHours - overtime hours worked in a given week
  168. //  
  169. //**************************************************************
  170.  
  171. float calculateOvertimeHours (float hours, float standardWorkWeekHours) 
  172. { 
  173.  
  174.     float overtimeHours; // overtime hours worked in a given week
  175.  
  176.     // Calculate overtime for employee
  177.     if (hours >= standardWorkWeekHours)
  178.     {
  179.         overtimeHours = hours - standardWorkWeekHours;
  180.     }
  181.     else // no OT
  182.     {
  183.         overtimeHours = 0;
  184.     }
  185.  
  186.     // return overtime hours back to the calling function
  187.     return (overtimeHours);
  188.  
  189. } // calculateOvertimeHours
  190.  
  191.  
  192. //**************************************************************
  193. // Function: calculateGrossPay 
  194. // 
  195. // Purpose: Calculates the total gross pay for an employee  
  196. // based on hours worked by the employee wage rate.  Includes   
  197. // overtime rate calculated via a wage rate multiplier. The result is 
  198. // passed back to the calling function. 
  199. // 
  200. // Parameters: 
  201. //      hours - number of hours worked by employee
  202. //      overtimeHours - number of overtime hours worked by employee
  203. //      wage - individual wage rate for the employee
  204. //      otWageRate - wage rate multiplier for overtime calculation
  205. // 
  206. // Returns: overtimeHours - overtime hours worked in a given week
  207. //  
  208. //**************************************************************
  209.  
  210. float calculateGrossPay (float hours, float overtimeHours, float wage, float otWageRate) 
  211. { 
  212.  
  213.     float grossPay; // gross pay for employee in given week
  214.  
  215.     // Calculate gross pay for employee
  216.     grossPay = ((hours - overtimeHours) * wage) + (overtimeHours * (wage * otWageRate));
  217.  
  218.     // return gross pay back to the calling function
  219.     return (grossPay);
  220.  
  221. } // calculateGrossPay
Success #stdin #stdout 0.01s 5320KB
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51.0
42.5
37.0
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Enter hours worked by emp # 098401: 
Enter hours worked by emp # 526488: 
Enter hours worked by emp # 765349: 
Enter hours worked by emp # 034645: 
Enter hours worked by emp # 127615: 

*** Pay Calculator ***

Clock# Wage  Hours  OT      Gross
------------------------------------------------

 098401 10.60 51.0 11.0   598.90
 526488  9.75 42.5  2.5   426.56
 765349 10.50 37.0  0.0   388.50
 034645 12.25 45.0  5.0   581.88
 127615  8.35  0.0  0.0     0.00
https://ideone.com/F8zGQA
language:
C (gcc 8.3)
created:
7 hours ago
visibility:
public

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