C Programming Assignment: Pointers, Memory Allocation, and Arrays

This assignment delves into fundamental C programming concepts. It explores the use of pointers, memory allocation, and how they relate to arrays and linked lists. The assignment covers topics such as accessing memory locations, understanding the behavior of pointers in relation to variables, and how to allocate memory dynamically using functions like malloc, calloc, and realloc. It also touches upon the use of pointers in the context of linked lists and the importance of data types like integers. The assignment also covers the relationship between pointers and arrays, and how they can be used to access elements in an array. Additionally, the assignment explores how to pass variables by reference and how to modify their values within functions. The assignment emphasizes the importance of understanding the underlying memory management in C and how to avoid common errors such as memory leaks and segmentation faults.

1. a) mp has its own allocated memory space independent of m and n.
c) The program should display m=2 n=3 *mp = 2 *np = 3
d) mp points to m
e) np points to n
2. e) in line 07 – the programmer can write an arithmetic operation which contains the
variable.
3. a) in line 07 – the programmer can write an arithmetic operation which contains the
variable.
b) in line 03 – the programmer can write a logical expression for the if – statement,
which contains the variable.
c) in line 11 – the programmer can write an arithmetic operation which contains the
variable.
d) in line 13 – the programmer can write an arithmetic operation which contains the
variable.
4. a) To get to a specific node in a linked list, the program needs to travel through the list
sequentially.
d) Fundamental data type used to build a linked list is a pointer to a structure, which
contains at least one pointer to another structure of the same type.
5. b) printf("%d \n", *(xp+1)); and printf("%d \n", xp[1); would print the same value
c) printf("%d \n", *xp)); would print 10 as the output.
d) printf("%d \n", *(xp+1)); would print 5 as the output.
6. a) A function can have any number of inputs, however a function can output only one
value through return keyword.
b) The key functions that allow dynamic memory allocation/deallocation through
pointers is provided by stdlib.h
d) An integer is a variable that contains a whole number.
e) consider an array defined as int arr[10]; The variable arr is in fact a pointer.
7. d) The malloc, calloc, realloc functions allocate memory to a pointer that is not
necessarily contiguous.
8. e) fun(&d, d);
9. a) a variable that stores an integer
b) the memory location of the variable.
d) a variable that stores the memory location of an integer.
e) the integer value stored in the memory location
c) the memory location of the beginning of the array.

10. c) if the value of x is printed after line 05, before line 06, it would be 1.