Why Use Pointers in C? Mastering Pass by Reference | Data Structures Series | Session 5

Welcome to Session 5 of the Data Structures Series with Manjunath Aradhya Sir!
In this session, we explore why pointers are essential in C programming by examining their advantages over the direct approach. Using a practical example of swapping two numbers, learn how the pointer approach (pass by reference) overcomes the limitations of the direct approach (pass by value). This session clarifies the power of pointers in accessing and modifying data across functions, perfect for students and developers preparing for technical interviews.

💡 What You’ll Learn in This Video:

✅ Why use pointers? Overcoming limitations of the direct approach
✅ Pass by Value vs. Pass by Reference: Key differences explained
✅ Three-step pointer approach: Creating, assigning addresses, and dereferencing
✅ Practical C example: Swapping two numbers using pointers
✅ Understanding memory maps: How pointers access data across functions
✅ Clarifying the star operator’s role in pointer creation and dereferencing

📌 Topics Covered
🔹 Limitations of the Direct Approach: Accessing data within the same function
🔹 Power of Pointers: Modifying data in another function using pass by reference
🔹 Pass by Value: Why it fails to swap numbers across functions
🔹 Pass by Reference: Using pointers to swap numbers successfully
🔹 Memory Map: Visualizing main and swap function variables
🔹 C code example: Swapping numbers with pointers vs. without pointers

❓ Why Watch This Series?

Our goal is to make complex data structure concepts clear and practical. With Manjunath Aradhya Sir’s expert teaching and real-world examples, you’ll build a strong foundation in C programming and data structures—ideal for students, developers, and those preparing for technical interviews.

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