C Module 1: Pointers, arrays, malloc

Exercise 1.1

Write your program in pointer.c. Can two pointers point to the same thing?

Exercise 1.2

Write your program in pointer2.c. Fill in the memory table below to represent just after the line sum = (*intPtr) + (*intPtr2); In your memory diagram, use the actual addresses printed to the screen. You might need to add extra print statements to find them out.

Globals:

Address	Name	Contents
	i
	j
	sum

Stack:

Address	Name	Contents
	intPtr
	intPtr2
	intPtr3

(For markdown table formatting help, see: https://github.com/adam-p/markdown-here/wiki/Markdown-Cheatsheet#tables)

Exercise 1.3

Write your program in charpointer.c.

Exercise 1.4

Write your program in pointertopointer.c. Fill in the memory diagram below just after the printf. Use the actual addresses from your program.

Stack:

Address	Name	Contents
	i
	p
	p2

Exercise 1.5

Write your program in string.c.

Exercise 1.6

Write your program in string2.c. Explain what these lines are trying to achieve.

Paste your output here

Exercise 1.7

Write your programs in array.c and array2.c. What is the output for each program?

Exercise 1.8

Write your program in array3.c

Exercise 1.9

You do not need to submit your diagram. Explain where B[1][3] is located in your diagram and how the calculation for its address works.

Exercise 1.10

Write your code in sizeof.c. What is printed out by the program? Fill in the memory diagram below for the point right before the calls to free. You may need to modify the program to print more addresses.

Stack:

Address	Name	Contents
	doublePtr
	charPtr

Heap:

Address	Contents

Exercise 1.11

Write your code in pointerArith.c.

Paste your output here

Exercise 1.12

Write your code in pointerArith2.c.

Exercise 1.13

Write your code in pascal.c What is your program's output when size=10?

Paste your output here

Exercise 1.14

Write your code in pascal2.c

Exercise 1.15

What is the decimal value of the number 1ABE?

Convert the decimal number 8384 into hexadecimal.

Use the hex version of 8384 to write that as a binary number, leaving spacing between every four bits.

Exercise 1.16

Without writing the program, can you predict what it will print? Confirm your answers with the program's output.

Exercise 1.17 (Bonus)

Write your code in endian.c

Exercise 1.18 (Bonus)

Modify endian.c. to print the addresses of all the variables. Then draw a detailed memory diagram like the one we've shown above, but using the actual memory addresses from the execution of your program. Look up the terms little- and big-endian and explain their origin.