Cop2270

13.3 Homework Assignment

(Basic Pointers and Pointer Arithmetic) Write a program that will do the following:

• Create two integer variables x and y, and an integer array z[5]

• Set the variable x equal to 5, and the variable y equal to 10

• Save the following values in the array: 1, 2, 4, 8, 16

• Print to screen the address of each of the variables, x, y, and the start of the

array z

• Create a pointer named testPtr and point it to the variable x

• Print to screen the value stored in variable x using only your pointer testPtr

• Add six to the value stored in x using only your pointer testPtr

• Print to screen the value stored in variable x using only your pointer testPtr

• Test to see if the value stored in variable x is larger than y, using only the

variable y and the testPtr. If it is, print to screen "x > y", otherwise print "y < x"

• Now, change testPtr to Point to the first entry of the array z

• Using only testPtr, use a counter and for loop to print all the value in the array

(do not use the array).

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(Pointers and Functions)

Write a void function called swap that accepts as inputs two integer

variables and swaps their values. For example, if I had a variable

a = 5 and b = 10, after calling swap with variables a and b; a = 10

and b = 5. Note this will require writing the function such that it

uses pointers since we want to change the original variables and

return nothing (void).

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