Waubonsee Community College CIS130 C++ Programming

Spring 2018 Maya Tolappa

Test 3 hand on Portion (50 points)

The purpose of this test is to test your knowledge of arrays and pointers.

You may change line 24 to use a SMART POINTER if you wish!

Consider the following cpp file that is part of the solution provided to you. Download it by clicking this link or from BlackBoard.

#include

#include

#include

#include

#include

using namespace std;

int main()

{

srand(time(NULL));

string arr_inst_names[10] = { "Georgette","Francene", "Earle",

"Hsiu", "Antonio", "Gema",

"Wallace","Josefina","Belia",

"Margaretta" };

//********************** 5 points *******************

//code a loop to print out the contents of the arr_inst_names array

//generate a random number as per specifications and assign it to

//the arr_size variable

int arr_size;

string *ptr_to_names_arr;

//create a string array with arr_size elements and place address

//of this newly created array into the ptr_to_names_arr pointer

//variable.

//Populate this newly created array from elements in

//the arr_inst_names array

//********************** 5 points *******************

cout

//**************** 15 points for print_arr function **************

//The print_array function prints the elements in the array whose

//address is maintained in the ptr_to_names_arr pointer

//Remember to create a function prototype for the function

print_array(ptr_to_names_arr, arr_size);

//**************** 15 points for sort_arr function **************

//The sort_array function must sort the elements in the array whose

//address is maintained in the ptr_to_names_arr pointer

//as per specifications. Remember to create function prototype

sort_array(ptr_to_names_arr, arr_size);

cout

print_array(ptr_to_names_arr, arr_size);

//**************** 10 points deletion statement.**************

//delete the memory taken up by the array whose address is maintained in

//the ptr_to_names_arr pointer

//****** Automatically awarded when you use smart pointers! *********

return 0;

}

In order to complete this program, complete these steps:

Task

Points

1.

Code a loop to print out the contents of the arr_inst_names array

5

Place a random number between 4 and 8 in arr_size

Create a string array with arr_size elements and place address of this newly created array into the names_arr pointer variable. Populate this newly created array from elements in the arr_inst_names array.

Implement print_array function

Implement sort_array function to sort elements in ascending order

Delete space taken up by dynamically created array.

You can when you use a smart pointer!

The output from my implementation of the program looks like this.:

Georgette Francene Earle Hsiu Antonio Gema Wallace Josefina Belia Margaretta

---Before sort---

Array size = 4

Georgette Francene Earle Hsiu

---After sort---

Array size = 4

Earle Francene Georgette Hsiu

The output from my implementation of the program looks like this.: Georgette Francene Earle Hsiu Antonio Gema Wallace Josefina Belia Margaretta -Before sort-- Array size 4 Georgette Francene Earle Hsiu -After sort-- Array size = 4 Earle Francene Georgette Hsiu