Module 4 : Pointers & Dynamic Array
By the end of this module, students will be able to:
- Understand the concept and purpose of pointers in C
- Declare and initialize pointers correctly
- Use pointer operators (& and *) effectively
- Perform pointer arithmetic operations
- Work with pointers and arrays
- Pass pointers to functions
- Understand the relationship between pointers and strings
- Allocate and manage dynamic memory
- Work with dynamic arrays
- Avoid common pointer-related errors and pitfalls
- Apply pointers in practical programming scenarios
1. Introduction to Pointers
1.1 What are Pointers? A pointer is a variable that stores the memory address of another variable...
2. Pointer Basics
2.1 Declaring Pointers Syntax: data_type *pointer_name; Examples: int *ptr; // Pointer to...
3. Pointer Arithmetics
3. Pointer Arithmetic Pointers can be incremented, decremented, and compared. When you perform ar...
4. Pointers and Arrays
Arrays and pointers have a very close relationship in C. In many contexts, an array name acts as ...
5. Pointers and Functions
Pointers are essential for functions to modify variables from the calling code and to work effici...
6. Pointers and Strings
In C, strings are arrays of characters, so pointers work naturally with strings. 6.1 String Repre...
7. Dynamic Memory Allocation & Array
7.1 Introduction to Dynamic Memory Up until now, we've used static memory allocation where array ...
8. Common Pointer Pitfalls and Best Practices
8.1 Uninitialized Pointers WRONG: int *ptr; // Uninitialized - contains garbage address *ptr...
9. Practical Examples with Dynamic Memory
9.1 Dynamic Array with User Input #include <stdio.h> #include <stdlib.h> int main() { int n,...