Lecture 18 | Mastering C Programming: Understanding Functions, Prototyping, and Function Calls

Welcome to Lecture 18 of our comprehensive C Programming series! In this session, we delve into the fundamental concept of functions in C. We'll cover the definition of functions, the importance of function prototyping, and the mechanics behind function calls. Understanding these concepts is crucial for writing modular and efficient code.

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Please answer the following questions in the comment section below:

# 1. Explain the concept of functions in C. What are the advantages of using functions in a program, and how do they contribute to code modularity and reusability?

# 2. Describe the purpose of function prototyping in C. Why is it important, and what information does it provide to the compiler during the compilation process?

# 3. Write a C program that includes a function to calculate the factorial of a given number. Provide the function prototype and demonstrate its usage with a sample function call in the main program.

# 4. Discuss the differences between call by value and call by reference in the context of function arguments in C. Provide examples to illustrate these two approaches.

# 5. Implement a C program that defines and utilizes a function to find the maximum among three numbers. Include the function prototype, definition, and a sample function call in the main program.

Feel free to share your theoretical understanding, code snippets, and insights!