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  1. //********************************************************
  2. //
  3. // Assignment 6 - Structures
  4. //
  5. // Name: Eric Dinh
  6. //
  7. // Class: C Programming, Fall 2026
  8. //
  9. // Date: 10/15/26
  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. // Call by reference design
  16. //
  17. //********************************************************
  18.  
  19. // Define and Includes
  20.  
  21. #include <stdio.h>
  22.  
  23. // Define Constants
  24. #define SIZE 5
  25. #define STD_HOURS 40.0
  26. #define OT_RATE 1.5
  27.  
  28. // Define a global structure to pass employee data between functions
  29. // Note that the structure type is global, but you don't want a variable
  30. // of that type to be global. Best to declare a variable of that type
  31. // in a function like main or another function and pass as needed.
  32.  
  33. struct employee
  34. {
  35.     long clockNumber;
  36.     float wageRate;
  37.     float hours;
  38.     float overtimeHrs;
  39.     float grossPay;
  40. };
  41.  
  42. // define prototypes here for each function except main
  43.  
  44. void getHours (struct employee employeeData[], int theSize );
  45. void printHeader (void);
  46. void printEmp (struct employee emp [ ], int theSize);
  47. void calcOT (struct employee employeeData[], int theSize);
  48. void calcGross (struct employee employeeData[], int theSize);
  49.  
  50.  
  51. int main ()
  52. {
  53.     // Set up a local variable and initialize the clock and wages of my employees
  54.     struct employee employeeData [SIZE] = {
  55.         { 98401, 10.60 },
  56.         { 526488, 9.75 },
  57.         { 765349, 10.50 },
  58.         { 34645, 12.25 },
  59.         { 127615, 8.35 }
  60.     };
  61.  
  62.     // Call function needed to read hours
  63.     getHours (employeeData, SIZE);
  64.  
  65.     // Call functions calculate ot hours and gross pay
  66.     calcOT (employeeData, SIZE);
  67.     calcGross (employeeData, SIZE);
  68.  
  69. 	// Call function to print the table column headers
  70.     // Print a table header
  71.     printHeader();
  72.  
  73.     // Function call to output results to the screen in table format
  74.     printEmp (employeeData, SIZE);
  75.  
  76.     return(0); // success
  77.  
  78. } // main
  79.  
  80. //**************************************************************
  81. // Function: getHours 
  82. // 
  83. // Purpose: Obtains input from user, the number of hours worked 
  84. // per employee and stores the result in an array of structures
  85. // that is passed back to the calling function by reference. 
  86. // 
  87. // Parameters:
  88. // 
  89. //     employeeData - an array of structures containing Employees
  90. //     theSize - number of employees to process
  91. //
  92. // Returns: Nothing (void)
  93. //  
  94. //**************************************************************
  95.  
  96. void getHours (struct employee employeeData[], int theSize ) 
  97. {
  98.  
  99.     int i; // loop and array index
  100.  
  101.     // read hours in for each employee
  102.     for (i = 0; i < theSize ; ++i)
  103.     {
  104.         printf("\nEnter hours worked by emp # %06li: ",
  105.                 employeeData[i].clockNumber);
  106.         scanf ("%f", &employeeData[i].hours);
  107.     } // for
  108.  
  109. } // getHours
  110.  
  111. //**************************************************************
  112. // Function: printHeader
  113. // 
  114. // Purpose: Prints the initial table header information.
  115. // 
  116. // Parameters: none
  117. // 
  118. // Returns: void
  119. //  
  120. //**************************************************************
  121.  
  122. void printHeader (void) 
  123. { 
  124.  
  125.     printf ("\n\n*** Pay Calculator ***\n");
  126.  
  127.     // print the table header
  128.     printf("------------------------------------------------");
  129.     printf("\nClock# Wage  Hours  OT      Gross\n");
  130.     printf("------------------------------------------------");
  131.  
  132. } // printHeader
  133.  
  134. // ********************************************************************
  135. // Function: printEmp
  136. //
  137. // Purpose: Outputs to screen in a table format the following
  138. // information about an employee: Clock, Wage,
  139. // Hours, Overtime Hours, and Gross Pay.
  140. //
  141. // Parameters:
  142. //
  143. //     employeeData - an array of structures containing Employees
  144. //     theSize - number of employees to process
  145. //
  146. // Returns: Nothing (void)
  147. //
  148. // *********************************************************************
  149.  
  150. void printEmp ( struct employee employeeData[], int theSize )
  151. {
  152.     int i; // loop and array index
  153.  
  154.     // print information about each employee
  155.     for (i = 0; i < theSize ; ++i)
  156.     {
  157.         printf("\n %06li %5.2f %4.1f %4.1f %8.2f",
  158.         employeeData[i].clockNumber, employeeData[i].wageRate, employeeData[i].hours,
  159.         employeeData[i].overtimeHrs, employeeData[i].grossPay);
  160.     } /* for */
  161.  
  162. } // printEmp
  163.  
  164. //**************************************************************
  165. // Function: calcOT
  166. // 
  167. // Purpose: Calculate overtime hours using employee hours and STD_HOURS. Checks to 
  168. // see if any hours are above 40.
  169. // 
  170. // Parameters:  employeeData - an array of structures containing Employees
  171. //  			theSize - number of employees to process 
  172. // 
  173. // Returns: nothing (void)
  174. //  
  175. //**************************************************************
  176.  
  177. void calcOT (struct employee employeeData[], int theSize) 
  178. {
  179. 	 int i; // loop and array index
  180.  
  181. 	 // calculate OThours for each employee
  182.      for (i = 0; i < theSize ; ++i)
  183.      {
  184.      	// check to see if hours are less/equal to 40
  185.      	if (employeeData[i].hours <= STD_HOURS)
  186.      	{
  187.      		employeeData[i].overtimeHrs = 0;
  188.      	}
  189.      	// any hours above 40 get calculated into OT hours
  190.      	else
  191.      	{
  192.      		employeeData[i].overtimeHrs = employeeData[i].hours - STD_HOURS;
  193.      	}
  194.      } // for
  195. } // calcOT
  196.  
  197. // ********************************************************************
  198. // Function: calcGross
  199. //
  200. // Purpose: Calculate gross pay for each employee using 
  201. //			overtime hours, normal hours, wage and OT wage rate
  202. //
  203. // Parameters:  employeeData - an array of structures containing Employees
  204. //  			theSize - number of employees to process
  205. //
  206. // Returns: Nothing (void)
  207. //
  208. // *********************************************************************
  209.  
  210. void calcGross ( struct employee employeeData[], int theSize )
  211. {
  212.     int i; // loop and array index
  213.  
  214.     // calculate gross pay for each employee
  215.     for (i = 0; i < theSize ; ++i)
  216.     {
  217.     	employeeData[i].grossPay =
  218.     	// calculates pay for hours <= 40
  219.     	(employeeData[i].wageRate * (employeeData[i].hours - employeeData[i].overtimeHrs) + 
  220.     	// calcultes overtime pay	
  221.     	employeeData[i].overtimeHrs * (employeeData[i].wageRate * OT_RATE));
  222.     } // for
  223.  
  224. } // calcGross
Success #stdin #stdout 0s 5328KB
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51.0
42.5
37.0
45.0
0.0
stdout
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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/KREknO
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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