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  1. //********************************************************
  2. //
  3. // Assignment 8 - Structures and Strings and Pointers
  4. //
  5. // Name: Matt Smith
  6. //
  7. // Class: C Programming, Spring 2025
  8. //
  9. // Date: 4/3/2025
  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. // This assignment also adds the employee name, their tax state,
  16. // and calculates the state tax, federal tax, and net pay. It
  17. // also calculates totals, averages, minimum, and maximum values.
  18. //
  19. // Array and Structure references are to be replaced with
  20. // pointer references to speed up the processing of this code.
  21. //
  22. // Call by Reference design (using pointers)
  23. //
  24. //********************************************************
  25.  
  26. // necessary header files
  27. #include <stdio.h>
  28. #include <string.h>
  29. #include <ctype.h>
  30.  
  31. // define constants
  32. #define SIZE 5
  33. #define STD_HOURS 40.0
  34. #define OT_RATE 1.5
  35. #define MA_TAX_RATE 0.05
  36. #define NH_TAX_RATE 0.0
  37. #define VT_TAX_RATE 0.06
  38. #define CA_TAX_RATE 0.07
  39. #define DEFAULT_TAX_RATE 0.08
  40. #define NAME_SIZE 20
  41. #define TAX_STATE_SIZE 3
  42. #define FED_TAX_RATE 0.25
  43. #define FIRST_NAME_SIZE 10
  44. #define LAST_NAME_SIZE 10
  45.  
  46. // Define a structure type to store an employee name
  47. // ... note how one could easily extend this to other parts
  48. // parts of a name: Middle, Nickname, Prefix, Suffix, etc.
  49. struct name
  50. {
  51. 	char firstName[FIRST_NAME_SIZE];
  52. 	char lastName [LAST_NAME_SIZE];
  53. };
  54.  
  55. // Define a structure type to pass employee data between functions
  56. // Note that the structure type is global, but you don't want a variable
  57. // of that type to be global. Best to declare a variable of that type
  58. // in a function like main or another function and pass as needed.
  59. struct employee
  60. {
  61. 	struct name empName;
  62. 	char taxState [TAX_STATE_SIZE];
  63. 	long int clockNumber;
  64. 	float wageRate;
  65. 	float hours;
  66. 	float overtimeHrs;
  67. 	float grossPay;
  68. 	float stateTax;
  69. 	float fedTax;
  70. 	float netPay;
  71. };
  72.  
  73. // this structure type defines the totals of all floating point items
  74. // so they can be totaled and used also to calculate averages
  75. struct totals
  76. {
  77. 	float total_wageRate;
  78. 	float total_hours;
  79. 	float total_overtimeHrs;
  80. 	float total_grossPay;
  81. 	float total_stateTax;
  82. 	float total_fedTax;
  83. 	float total_netPay;
  84. };
  85.  
  86. // this structure type defines the min and max values of all floating
  87. // point items so they can be display in our final report
  88. struct min_max
  89. {
  90. 	float min_wageRate;
  91. 	float min_hours;
  92. 	float min_overtimeHrs;
  93. 	float min_grossPay;
  94. 	float min_stateTax;
  95. 	float min_fedTax;
  96. 	float min_netPay;
  97. 	float max_wageRate;
  98. 	float max_hours;
  99. 	float max_overtimeHrs;
  100. 	float max_grossPay;
  101. 	float max_stateTax;
  102. 	float max_fedTax;
  103. 	float max_netPay;
  104. };
  105.  
  106. // define prototypes here for each function except main
  107.  
  108. // These prototypes have already been transitioned to pointers
  109. void getHours (struct employee * emp_ptr, int theSize);
  110. void printEmp (struct employee * emp_ptr, int theSize);
  111.  
  112. void calcEmployeeTotals (struct employee * emp_ptr, 
  113. 						 struct totals * emp_totals_ptr,
  114. 						 int theSize);
  115. void calcEmployeeMinMax (struct employee * emp_ptr,
  116. 						 struct min_max * emp_MinMax_ptr,
  117. 						 int theSize);
  118.  
  119. // This prototype does not need to use pointers
  120. void printHeader (void);
  121.  
  122. // TODO - Transition these prototypes from using arrays to
  123. // using pointers (use emp_ptr instead of
  124. // employeeData for the first parameter). See prototypes
  125. // above for hints. DONE.
  126. void calcOvertimeHrs (struct employee * emp_ptr, int theSize);
  127. void calcGrossPay (struct employee * empData_ptr, int theSize);
  128. void calcStateTax (struct employee * empData_ptr, int theSize);
  129. void calcFedTax (struct employee * empData_ptr, int theSize);
  130. void calcNetPay (struct employee * empData_ptr, int theSize);
  131. void printEmpStatistics (struct totals * emp_totals_ptr, 
  132.                          struct min_max * emp_MinMax_ptr,
  133.                          int theSize);
  134.  
  135. int main ()
  136. {
  137.  
  138. 	// Set up a local variable to store the employee information
  139. 	// Initialize the name, tax state, clock number, and wage rate
  140. 	struct employee employeeData[SIZE] = {
  141. 		{ {"Connie", "Cobol"}, "MA", 98401, 10.60},
  142. 		{ {"Mary", "Apl"}, "NH", 526488, 9.75 },
  143. 		{ {"Frank", "Fortran"}, "VT", 765349, 10.50 },
  144. 		{ {"Jeff", "Ada"}, "NY", 34645, 12.25 },
  145. 		{ {"Anton", "Pascal"},"CA",127615, 8.35 }
  146. 	};
  147.  
  148. 	// declare a pointer to the array of employee structures
  149. 	struct employee * emp_ptr;
  150.  
  151. 	// set the pointer to point to the array of employees
  152. 	emp_ptr = employeeData;
  153.  
  154. 	// set up structure to store totals and initialize all to zero
  155. 	struct totals employeeTotals = {0,0,0,0,0,0,0};
  156.  
  157. 	// pointer to the employeeTotals structure
  158. 	struct totals * emp_totals_ptr = &employeeTotals;
  159.  
  160. 	// set up structure to store min and max values and initialize all to zero
  161. 	struct min_max employeeMinMax = {0,0,0,0,0,0,0,0,0,0,0,0,0,0};
  162.  
  163. 	// pointer to the employeeMinMax structure
  164. 	struct min_max * emp_minMax_ptr = &employeeMinMax;
  165.  
  166. 	// Call functions as needed to read and calculate information
  167.  
  168. 	// Prompt for the number of hours worked by the employee
  169. 	getHours (employeeData, SIZE);
  170.  
  171. 	// Calculate the overtime hours
  172. 	calcOvertimeHrs (employeeData, SIZE);
  173.  
  174. 	// Calculate the weekly gross pay
  175. 	calcGrossPay (employeeData, SIZE);
  176.  
  177. 	// Calculate the state tax
  178. 	calcStateTax (employeeData, SIZE);
  179.  
  180. 	// Calculate the federal tax
  181. 	calcFedTax (employeeData, SIZE);
  182.  
  183. 	// Calculate the net pay after taxes
  184. 	calcNetPay (employeeData, SIZE);
  185.  
  186. 	// Keep a running sum of the employee totals
  187. 	// Note the & to specify the address of the employeeTotals
  188. 	// structure. Needed since pointers work with addresses.
  189. 	calcEmployeeTotals (employeeData,
  190. 						&employeeTotals,
  191. 						SIZE);
  192.  
  193. 	// Keep a running update of the employee minimum and maximum values
  194. 	calcEmployeeMinMax (employeeData, 
  195. 						&employeeMinMax, 
  196. 						SIZE);
  197. 	// Print the column headers
  198. 	printHeader();
  199.  
  200. 	// print out final information on each employee
  201. 	printEmp (employeeData, SIZE);
  202.  
  203. 	// TODO - Transition this call to using pointers.
  204. 	// Hint: Pass the address of these two structures
  205. 	// like it is being done with calcEmployeeTotals
  206. 	// and calcEmployeeMinMax. DONE.
  207. 	// print the totals and averages for all float items
  208. 	printEmpStatistics (&employeeTotals, 
  209. 						&employeeMinMax, 
  210. 						SIZE);
  211.  
  212. 	return (0); // success
  213.  
  214. } // main
  215.  
  216. //**************************************************************
  217. // Function: getHours
  218. //
  219. // Purpose: Obtains input from user, the number of hours worked
  220. // per employee and updates it in the array of structures
  221. // for each employee.
  222. //
  223. // Parameters:
  224. //
  225. // emp_ptr - pointer to array of employees (i.e., struct employee)
  226. // theSize - the array size (i.e., number of employees)
  227. //
  228. // Returns: void (the employee hours gets updated by reference)
  229. //
  230. //**************************************************************
  231. void getHours (struct employee * emp_ptr, int theSize)
  232. {
  233.  
  234. 	int i; // loop index
  235.  
  236. 	// read in hours for each employee
  237. 	for (i = 0; i < theSize; ++i)
  238. 	{
  239. 		// Read in hours for employee
  240. 		printf("\nEnter hours worked by emp # %06li: ", emp_ptr->clockNumber);
  241. 		scanf ("%f", &emp_ptr->hours);
  242.  
  243. 		// set pointer to next employee
  244. 		++emp_ptr;
  245. 	}
  246.  
  247. } // getHours
  248. //**************************************************************
  249. // Function: printHeader
  250. //
  251. // Purpose: Prints the initial table header information.
  252. //
  253. // Parameters: none
  254. //
  255. // Returns: void
  256. //
  257. //**************************************************************
  258.  
  259. void printHeader (void) 
  260. { 
  261.  
  262.     printf ("\n\n*** Pay Calculator ***\n");
  263.  
  264.     // print the table header
  265.     printf("\n--------------------------------------------------------------");
  266.     printf("-------------------");
  267.     printf("\nName                Tax  Clock# Wage   Hours  OT   Gross ");
  268.     printf("  State  Fed      Net");
  269.     printf("\n                   State                           Pay   ");
  270.     printf("  Tax    Tax      Pay");
  271.  
  272.     printf("\n--------------------------------------------------------------");
  273.     printf("-------------------");
  274.  
  275. } // printHeader
  276.  
  277. //*************************************************************
  278. // Function: printEmp
  279. //
  280. // Purpose: Prints out all the information for each employee
  281. // in a nice and orderly table format.
  282. //
  283. // Parameters:
  284. //
  285. // emp_ptr - pointer to array of struct employee
  286. // theSize - the array size (i.e., number of employees)
  287. //
  288. // Returns: void
  289. //
  290. //**************************************************************
  291.  
  292. void printEmp (struct employee * emp_ptr, int theSize)
  293. {
  294.  
  295. 	int i; // array and loop index
  296.  
  297. 	// Used to format the employee name
  298. 	char name [FIRST_NAME_SIZE + LAST_NAME_SIZE + 1];
  299.  
  300. 	// read in hours for each employee
  301. 	for (i = 0; i < theSize; ++i)
  302. 	{
  303. 		// While you could just print the first and last name in the printf
  304. 		// statement that follows, you could also use various C string library
  305. 		// functions to format the name exactly the way you want it. Breaking
  306. 		// the name into first and last members additionally gives you some
  307. 		// flexibility in printing. This also becomes more useful if we decide
  308. 		// later to store other parts of a person's name. I really did this just
  309. 		// to show you how to work with some of the common string functions.
  310. 		strcpy (name, emp_ptr->empName.firstName);
  311. 		strcat (name, " "); // add a space between first and last names
  312. 		strcat (name, emp_ptr->empName.lastName);
  313.  
  314. 		// Print out a single employee
  315. 		printf("\n%-20.20s %-2.2s  %06li %5.2f  %4.1f  %4.1f %7.2f %6.2f %7.2f %8.2f",
  316.                name, emp_ptr->taxState, emp_ptr->clockNumber, 
  317.                emp_ptr->wageRate, emp_ptr->hours,
  318.                emp_ptr->overtimeHrs, emp_ptr->grossPay, 
  319.                emp_ptr->stateTax, emp_ptr->fedTax, 
  320.                emp_ptr->netPay);
  321.  
  322. 		// set pointer to next employee
  323. 		++emp_ptr;
  324.  
  325. 	} // for
  326.  
  327. } // printEmp
  328.  
  329. //*************************************************************
  330. // Function: printEmpStatistics
  331. //
  332. // Purpose: Prints out the summary totals and averages of all
  333. // floating point value items for all employees
  334. // that have been processed. It also prints
  335. // out the min and max values.
  336. //
  337. // Parameters:
  338. //
  339. // employeeTotals - a structure containing a running total
  340. // of all employee floating point items
  341. // employeeMinMax - a structure containing all the minimum
  342. // and maximum values of all employee
  343. // floating point items
  344. // theSize - the total number of employees processed, used
  345. // to check for zero or negative divide condition.
  346. //
  347. // Returns: void
  348. //
  349. //**************************************************************
  350. // TODO - Transition this function from Structure references to
  351. // Pointer references. Two steps are needed:
  352. //
  353. // 1) Change both structure parameters to pointers (use
  354. // emp_totals_ptr and emp_MinMax_ptr).
  355. //
  356. // 2) Change all structures references to pointer references
  357. // within all places inside the function body.
  358. //
  359. // For example, instead of employeeTotals.total_wageRate
  360. // ... use emp_totals_ptr->total_wageRate
  361. // and instead of employeeMinMax.min_wageRate
  362. // ... use emp_MinMax_ptr->min_wageRate
  363. // DONE.
  364.  
  365. void printEmpStatistics (struct totals * emp_totals_ptr, 
  366.                          struct min_max * emp_MinMax_ptr,
  367.                          int theSize)
  368. {
  369. 	// print a separator line
  370. 	printf("\n--------------------------------------------------------------");
  371. 	printf("-------------------");
  372.  
  373. 	// print the totals for all the floating point fields
  374. 	printf("\nTotals:                         %5.2f %5.1f %5.1f %7.2f %6.2f %7.2f %8.2f",
  375.            emp_totals_ptr->total_wageRate,
  376.            emp_totals_ptr->total_hours,
  377.            emp_totals_ptr->total_overtimeHrs,
  378.            emp_totals_ptr->total_grossPay,
  379.            emp_totals_ptr->total_stateTax,
  380.            emp_totals_ptr->total_fedTax,
  381.            emp_totals_ptr->total_netPay);
  382.  
  383. 	// make sure you don't divide by zero or a negative number
  384. 	if (theSize > 0)
  385. 	{
  386. 		// print the averages for all the floating point fields
  387. 		printf("\nAverages:                       %5.2f %5.1f %5.1f %7.2f %6.2f %7.2f %8.2f",
  388.                emp_totals_ptr->total_wageRate/theSize,
  389.                emp_totals_ptr->total_hours/theSize,
  390.                emp_totals_ptr->total_overtimeHrs/theSize,
  391.                emp_totals_ptr->total_grossPay/theSize,
  392.                emp_totals_ptr->total_stateTax/theSize,
  393.                emp_totals_ptr->total_fedTax/theSize,
  394.                emp_totals_ptr->total_netPay/theSize);
  395. 	} // if
  396.  
  397. 	// print the min and max values
  398.  
  399. 	printf("\nMinimum:                        %5.2f %5.1f %5.1f %7.2f %6.2f %7.2f %8.2f",
  400.            emp_MinMax_ptr->min_wageRate,
  401.            emp_MinMax_ptr->min_hours,
  402.            emp_MinMax_ptr->min_overtimeHrs,
  403.            emp_MinMax_ptr->min_grossPay,
  404.            emp_MinMax_ptr->min_stateTax,
  405.            emp_MinMax_ptr->min_fedTax,
  406.            emp_MinMax_ptr->min_netPay);
  407.  
  408.     printf("\nMaximum:                        %5.2f %5.1f %5.1f %7.2f %6.2f %7.2f %8.2f",
  409.            emp_MinMax_ptr->max_wageRate,
  410.            emp_MinMax_ptr->max_hours,
  411.            emp_MinMax_ptr->max_overtimeHrs,
  412.            emp_MinMax_ptr->max_grossPay,
  413.            emp_MinMax_ptr->max_stateTax,
  414.            emp_MinMax_ptr->max_fedTax,
  415.            emp_MinMax_ptr->max_netPay);
  416.  
  417. } // printEmpStatistics
  418.  
  419. //*************************************************************
  420. // Function: calcOvertimeHrs
  421. //
  422. // Purpose: Calculates the overtime hours worked by an employee
  423. // in a given week for each employee.
  424. //
  425. // Parameters:
  426. //
  427. // employeeData - array of employees (i.e., struct employee)
  428. // theSize - the array size (i.e., number of employees)
  429. //
  430. // Returns: void (the overtime hours gets updated by reference)
  431. //
  432. //**************************************************************
  433. // TODO - Transition this function from Array references to
  434. // Pointer references. Perform these three (3) steps:
  435. //
  436. // 1) Change the employeeData parameter to a pointer (emp_ptr)
  437. // 2) Change all array references in function body to pointer
  438. // references (use emp_ptr).
  439. // 3) Increment emp_ptr just before the end of the loop
  440. // to access the next employee
  441. //
  442. // Note: Review how it was done already in the getHours function
  443. // DONE.
  444.  
  445. void calcOvertimeHrs (struct employee * emp_ptr, int theSize)
  446. {
  447.  
  448.     int i;  // loop index
  449.  
  450.     // calculate overtime hours for each employee
  451.     for (i = 0; i < theSize; ++i)
  452.     {  
  453.         // Any overtime ?
  454.         if (emp_ptr->hours >= STD_HOURS)
  455.         {
  456.             emp_ptr->overtimeHrs = emp_ptr->hours - STD_HOURS;
  457.         }
  458.         else // no overtime
  459.         {
  460.               emp_ptr->overtimeHrs = 0;
  461.         }
  462.  
  463.        ++emp_ptr;  // next employee
  464.  
  465.     } // for
  466.  
  467. }  // calcOvertimeHrs
  468.  
  469. //*************************************************************
  470. // Function: calcGrossPay
  471. //
  472. // Purpose: Calculates the gross pay based on the the normal pay
  473. // and any overtime pay for a given week for each
  474. // employee.
  475. //
  476. // Parameters:
  477. //
  478. // employeeData - array of employees (i.e., struct employee)
  479. // theSize - the array size (i.e., number of employees)
  480. //
  481. // Returns: void (the gross pay gets updated by reference)
  482. //
  483. //**************************************************************
  484. // TODO - Transition this function from Array references to
  485. // Pointer references. Perform these three (3) steps:
  486. //
  487. // 1) Change the employeeData parameter to a pointer (emp_ptr)
  488. // 2) Change all array references in function body to pointer
  489. // references (use emp_ptr).
  490. // 3) Increment emp_ptr just before the end of the loop
  491. // to access the next employee
  492. //
  493. // Note: Review how it was done already in the getHours function
  494. // DONE.
  495.  
  496. void calcGrossPay (struct employee * empData_ptr, int theSize)
  497. {
  498.     int i;                // loop and array index
  499.     float theNormalPay;   // normal pay without any overtime hours
  500.     float theOvertimePay; // overtime pay
  501.  
  502.     // calculate grossPay for each employee
  503.     for (i=0; i < theSize; ++i)
  504.     {
  505.         // calculate normal pay and any overtime pay
  506.         theNormalPay = empData_ptr->wageRate * 
  507.                        (empData_ptr->hours - empData_ptr->overtimeHrs);
  508.         theOvertimePay = empData_ptr->overtimeHrs * 
  509.                          (OT_RATE * empData_ptr->wageRate);
  510.  
  511.         // calculate gross pay for employee as normalPay + any overtime pay
  512.         empData_ptr->grossPay = theNormalPay + theOvertimePay;
  513.  
  514.         ++empData_ptr;  // next employee
  515.  
  516.     }//for
  517.  
  518. } // calcGrossPay
  519.  
  520. //*************************************************************
  521. // Function: calcStateTax
  522. //
  523. // Purpose: Calculates the State Tax owed based on gross pay
  524. // for each employee. State tax rate is based on the
  525. // the designated tax state based on where the
  526. // employee is actually performing the work. Each
  527. // state decides their tax rate.
  528. //
  529. // Parameters:
  530. //
  531. // employeeData - array of employees (i.e., struct employee)
  532. // theSize - the array size (i.e., number of employees)
  533. //
  534. // Returns: void (the state tax gets updated by reference)
  535. //
  536. //**************************************************************
  537. // TODO - Transition this function from Array references to
  538. // Pointer references. Perform these three (3) steps:
  539. //
  540. // 1) Change the employeeData parameter to a pointer (emp_ptr)
  541. // 2) Change all array references in function body to pointer
  542. // references (use emp_ptr).
  543. // 3) Increment emp_ptr just before the end of the loop
  544. // to access the next employee
  545. //
  546. // Note: Review how it was done already in the getHours function
  547. // DONE
  548.  
  549. void calcStateTax (struct employee * empData_ptr, int theSize)
  550. {
  551.  
  552.     int i; // loop and array index
  553.  
  554.     // calculate state tax based on where employee works
  555.     for (i=0; i < theSize; ++i)
  556.     {
  557.         // Make sure tax state is all uppercase
  558.         if (islower(empData_ptr->taxState[0]))
  559.             empData_ptr->taxState[0] = toupper(empData_ptr->taxState[0]);
  560.         if (islower(empData_ptr->taxState[1]))
  561.             empData_ptr->taxState[1] = toupper(empData_ptr->taxState[1]);
  562.  
  563.         // calculate state tax based on where employee resides
  564.         if (strcmp(empData_ptr->taxState, "MA") == 0)
  565.             empData_ptr->stateTax = empData_ptr->grossPay * MA_TAX_RATE;
  566.         else if (strcmp(empData_ptr->taxState, "VT") == 0)
  567.             empData_ptr->stateTax = empData_ptr->grossPay * VT_TAX_RATE;
  568.         else if (strcmp(empData_ptr->taxState, "NH") == 0)
  569.             empData_ptr->stateTax = empData_ptr->grossPay * NH_TAX_RATE;
  570.         else if (strcmp(empData_ptr->taxState, "CA") == 0)
  571.             empData_ptr->stateTax = empData_ptr->grossPay * CA_TAX_RATE;
  572.         else
  573.             // any other state is the default rate
  574.             empData_ptr->stateTax = empData_ptr->grossPay * DEFAULT_TAX_RATE;
  575.  
  576.         ++empData_ptr;  // next employee
  577.  
  578.     } // for
  579.  
  580. } // calcStateTax
  581.  
  582. //*************************************************************
  583. // Function: calcFedTax
  584. //
  585. // Purpose: Calculates the Federal Tax owed based on the gross
  586. // pay for each employee
  587. //
  588. // Parameters:
  589. //
  590. // employeeData - array of employees (i.e., struct employee)
  591. // theSize - the array size (i.e., number of employees)
  592. //
  593. // Returns: void (the federal tax gets updated by reference)
  594. //
  595. //**************************************************************
  596. // TODO - Transition this function from Array references to
  597. // Pointer references. Perform these three (3) steps:
  598. //
  599. // 1) Change the employeeData parameter to a pointer (emp_ptr)
  600. // 2) Change all array references in function body to pointer
  601. // references (use emp_ptr).
  602. // 3) Increment emp_ptr just before the end of the loop
  603. // to access the next employee
  604. //
  605. // Note: Review how it was done already in the getHours function
  606. // DONE.
  607.  
  608. void calcFedTax (struct employee * empData_ptr, int theSize)
  609. {
  610.  
  611.     int i;  // loop and array index
  612.  
  613.     // calculate the federal tax for each employee
  614.     for (i=0; i < theSize; ++i)
  615.     {
  616.         // Fed Tax is the same for all regardless of state
  617.         empData_ptr->fedTax = empData_ptr->grossPay * FED_TAX_RATE;
  618.  
  619.     ++empData_ptr;  // next empoloyee
  620.  
  621.     } // for
  622.  
  623. } // calcFedTax
  624.  
  625. //*************************************************************
  626. // Function: calcNetPay
  627. //
  628. // Purpose: Calculates the net pay as the gross pay minus any
  629. // state and federal taxes owed for each employee.
  630. // Essentially, their "take home" pay.
  631. //
  632. // Parameters:
  633. //
  634. // employeeData - array of employees (i.e., struct employee)
  635. // theSize - the array size (i.e., number of employees)
  636. //
  637. // Returns: void (the net pay gets updated by reference)
  638. //
  639. //**************************************************************
  640. // TODO - Transition this function from Array references to
  641. // Pointer references. Perform these three (3) steps:
  642. //
  643. // 1) Change the employeeData parameter to a pointer (emp_ptr)
  644. // 2) Change all array references in function body to pointer
  645. // references (use emp_ptr).
  646. // 3) Increment emp_ptr just before the end of the loop
  647. // to access the next employee
  648. //
  649. // Note: Review how it was done already in the getHours function
  650. // DONE.
  651.  
  652. void calcNetPay (struct employee * empData_ptr, int theSize)
  653. {
  654.     int i;               // loop and array index
  655.     float theTotalTaxes; // the total state and federal tax
  656.  
  657.     // calculate the take home pay for each employee
  658.     for (i=0; i < theSize; ++i)
  659.     {
  660.         // calculate the total state and federal taxes
  661.         theTotalTaxes = empData_ptr->stateTax + empData_ptr->fedTax;
  662.  
  663.         // calculate the net pay
  664.         empData_ptr->netPay = empData_ptr->grossPay - theTotalTaxes;
  665.  
  666.     ++empData_ptr;  // next employee
  667.  
  668.     } // for
  669.  
  670. } // calcNetPay
  671.  
  672. //*************************************************************
  673. // Function: calcEmployeeTotals
  674. //
  675. // Purpose: Performs a running total (sum) of each employee
  676. // floating point member in the array of structures
  677. //
  678. // Parameters:
  679. //
  680. // emp_ptr - pointer to array of employees (structure)
  681. // emp_totals_ptr - pointer to a structure containing the
  682. // running totals of all floating point
  683. // members in the array of employee structure
  684. // that is accessed and referenced by emp_ptr
  685. // theSize - the array size (i.e., number of employees)
  686. //
  687. // Returns:
  688. //
  689. // void (the employeeTotals structure gets updated by reference)
  690. //
  691. //**************************************************************
  692.  
  693. void calcEmployeeTotals (struct employee * emp_ptr,
  694.                          struct totals * emp_totals_ptr,
  695.                          int theSize)
  696. {
  697.  
  698.     int i; // loop index
  699.  
  700.     // total up each floating point item for all employees
  701.     for (i = 0; i < theSize; ++i)
  702.     {
  703.         // add current employee data to our running totals
  704.         emp_totals_ptr->total_wageRate += emp_ptr->wageRate;
  705.         emp_totals_ptr->total_hours += emp_ptr->hours;
  706.         emp_totals_ptr->total_overtimeHrs += emp_ptr->overtimeHrs;
  707.         emp_totals_ptr->total_grossPay += emp_ptr->grossPay;
  708.         emp_totals_ptr->total_stateTax += emp_ptr->stateTax;
  709.         emp_totals_ptr->total_fedTax += emp_ptr->fedTax;
  710.         emp_totals_ptr->total_netPay += emp_ptr->netPay;
  711.  
  712.         // go to next employee in our array of structures
  713.         // Note:  We don't need to increment the emp_totals_ptr
  714.         //        because it is not an array
  715.         ++emp_ptr;
  716.  
  717.     } // for
  718.  
  719. 	// no need to return anything since we used pointers and have
  720. 	// been referring the array of employee structure and the
  721. 	// the total structure from its calling function ... this
  722. 	// is the power of Call by Reference.
  723.  
  724. } // calcEmployeeTotals
  725.  
  726. //*************************************************************
  727. // Function: calcEmployeeMinMax
  728. //
  729. // Purpose: Accepts various floating point values from an
  730. // employee and adds to a running update of min
  731. // and max values
  732. //
  733. // Parameters:
  734. //
  735. // employeeData - array of employees (i.e., struct employee)
  736. // employeeTotals - structure containing a running totals
  737. // of all fields above
  738. // theSize - the array size (i.e., number of employees)
  739. //
  740. // Returns:
  741. //
  742. // employeeMinMax - updated employeeMinMax structure
  743. //
  744. //**************************************************************
  745.  
  746. void calcEmployeeMinMax (struct employee * emp_ptr,
  747.                          struct min_max * emp_minMax_ptr,
  748.                          int theSize)
  749. {
  750.  
  751.     int i; // loop index
  752.  
  753.     // At this point, emp_ptr is pointing to the first
  754.     // employee which is located in the first element
  755.     // of our employee array of structures (employeeData).
  756.  
  757.     // As this is the first employee, set each min 
  758.     // min and max value using our emp_minMax_ptr
  759.     // to the associated member fields below.  They
  760.     // will become the initial baseline that we  
  761.     // can check and update if needed against the 
  762.     // remaining employees.
  763.  
  764.     // set the min to the first employee members
  765.     emp_minMax_ptr->min_wageRate = emp_ptr->wageRate; 
  766.     emp_minMax_ptr->min_hours = emp_ptr->hours;
  767.     emp_minMax_ptr->min_overtimeHrs = emp_ptr->overtimeHrs; 
  768.     emp_minMax_ptr->min_grossPay = emp_ptr->grossPay;
  769.     emp_minMax_ptr->min_stateTax = emp_ptr->stateTax;
  770.     emp_minMax_ptr->min_fedTax = emp_ptr->fedTax;
  771.     emp_minMax_ptr->min_netPay = emp_ptr->netPay;
  772.  
  773.     // set the max to the first employee members
  774.     emp_minMax_ptr->max_wageRate = emp_ptr->wageRate; 
  775.     emp_minMax_ptr->max_hours = emp_ptr->hours;
  776.     emp_minMax_ptr->max_overtimeHrs = emp_ptr->overtimeHrs; 
  777.     emp_minMax_ptr->max_grossPay = emp_ptr->grossPay;
  778.     emp_minMax_ptr->max_stateTax = emp_ptr->stateTax;
  779.     emp_minMax_ptr->max_fedTax = emp_ptr->fedTax;
  780.     emp_minMax_ptr->max_netPay = emp_ptr->netPay;
  781.  
  782.     // compare the rest of the employees to each other for min and max
  783.     for (i = 1; i < theSize; ++i)
  784.     {
  785.  
  786.         // go to next employee in our array of structures
  787.         // Note:  We don't need to increment the emp_totals_ptr
  788.         //        because it is not an array
  789.         ++emp_ptr;
  790.  
  791.         // check if current Wage Rate is the new min and/or max
  792.         if (emp_ptr->wageRate < emp_minMax_ptr->min_wageRate)
  793.         {
  794.             emp_minMax_ptr->min_wageRate = emp_ptr->wageRate;
  795.         }
  796.  
  797.         if (emp_ptr->wageRate > emp_minMax_ptr->max_wageRate)
  798.         {
  799.             emp_minMax_ptr->max_wageRate = emp_ptr->wageRate;
  800.         }
  801.  
  802.         // check is current Hours is the new min and/or max
  803.         if (emp_ptr->hours < emp_minMax_ptr->min_hours)
  804.         {
  805.             emp_minMax_ptr->min_hours = emp_ptr->hours;
  806.         }
  807.  
  808.         if (emp_ptr->hours > emp_minMax_ptr->max_hours)
  809.         {
  810.             emp_minMax_ptr->max_hours = emp_ptr->hours;
  811.         }
  812.  
  813.         // check is current Overtime Hours is the new min and/or max
  814.         if (emp_ptr->overtimeHrs < emp_minMax_ptr->min_overtimeHrs)
  815.         {
  816.             emp_minMax_ptr->min_overtimeHrs = emp_ptr->overtimeHrs;
  817.         }
  818.  
  819.         if (emp_ptr->overtimeHrs > emp_minMax_ptr->max_overtimeHrs)
  820.         {
  821.             emp_minMax_ptr->max_overtimeHrs = emp_ptr->overtimeHrs;
  822.         }
  823.  
  824.         // check is current Gross Pay is the new min and/or max
  825.         if (emp_ptr->grossPay < emp_minMax_ptr->min_grossPay)
  826.         {
  827.             emp_minMax_ptr->min_grossPay = emp_ptr->grossPay;
  828.         }
  829.  
  830.         if (emp_ptr->grossPay > emp_minMax_ptr->max_grossPay)
  831.         {
  832.             emp_minMax_ptr->max_grossPay = emp_ptr->grossPay;
  833.         }
  834.  
  835.         // check is current State Tax is the new min and/or max
  836.         if (emp_ptr->stateTax < emp_minMax_ptr->min_stateTax)
  837.         {
  838.             emp_minMax_ptr->min_stateTax = emp_ptr->stateTax;
  839.         }
  840.  
  841.         if (emp_ptr->stateTax > emp_minMax_ptr->max_stateTax)
  842.         {
  843.             emp_minMax_ptr->max_stateTax = emp_ptr->stateTax;
  844.         }
  845.  
  846.         // check is current Federal Tax is the new min and/or max
  847.         if (emp_ptr->fedTax < emp_minMax_ptr->min_fedTax)
  848.         {
  849.             emp_minMax_ptr->min_fedTax = emp_ptr->fedTax;
  850.         }
  851.  
  852.         if (emp_ptr->fedTax > emp_minMax_ptr->max_fedTax)
  853.         {
  854.             emp_minMax_ptr->max_fedTax = emp_ptr->fedTax;
  855.         }
  856.  
  857.         // check is current Net Pay is the new min and/or max
  858.         if (emp_ptr->netPay < emp_minMax_ptr->min_netPay)
  859.         {
  860.             emp_minMax_ptr->min_netPay = emp_ptr->netPay;
  861.         }
  862.  
  863.         if (emp_ptr->netPay > emp_minMax_ptr->max_netPay)
  864.         {
  865.             emp_minMax_ptr->max_netPay = emp_ptr->netPay;
  866.         }
  867.  
  868.     } // else if
  869.  
  870.     // no need to return anything since we used pointers and have
  871.     // been referencing the employeeData structure and the 
  872.     // the employeeMinMax structure from its calling function ...
  873.     // this is the power of Call by Reference.
  874.  
  875. } // calcEmployeeMinMax
Success #stdin #stdout 0.01s 5288KB
comments (?)
stdin
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51.0
42.5
37.0
45.0
40.0
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 ***

---------------------------------------------------------------------------------
Name                Tax  Clock# Wage   Hours  OT   Gross   State  Fed      Net
                   State                           Pay     Tax    Tax      Pay
---------------------------------------------------------------------------------
Connie Cobol         MA  098401 10.60  51.0  11.0  598.90  29.95  149.73   419.23
Mary Apl             NH  526488  9.75  42.5   2.5  426.56   0.00  106.64   319.92
Frank Fortran        VT  765349 10.50  37.0   0.0  388.50  23.31   97.12   268.07
Jeff Ada             NY  034645 12.25  45.0   5.0  581.88  46.55  145.47   389.86
Anton Pascal         CA  127615  8.35  40.0   0.0  334.00  23.38   83.50   227.12
---------------------------------------------------------------------------------
Totals:                         51.45 215.5  18.5 2329.84 123.18  582.46  1624.19
Averages:                       10.29  43.1   3.7  465.97  24.64  116.49   324.84
Minimum:                         8.35  37.0   0.0  334.00   0.00   83.50   227.12
Maximum:                        12.25  51.0  11.0  598.90  46.55  149.73   419.23
https://ideone.com/M7AFzY
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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