Pass by Value vs Pass by Reference in C | CS3251 Unit 3 | Programming in C Tamil | Anna University
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In this Tamil tutorial, we clearly explain the two most important function parameter passing techniques in C – Pass by Value and Pass by Reference, as per Unit 3 of CS3251 – Programming in C under the Anna University Regulation 2021 syllabus.
Understanding how data is passed to functions is essential for writing reliable C programs. These concepts are frequently asked in lab viva, semester exams, and practical implementation-based questions.
📘 Topics Covered:
What is Pass by Value in C?
What is Pass by Reference in C?
Differences between pass by value & reference
Pointer usage in reference passing
Code examples and dry run in Tamil
Real-life analogy to understand concept
Exam-oriented explanation with tips
🎯 Best For:
B.E/B.Tech CSE & IT first-year students
Anna University Tamil medium learners
Regulation 2021 students preparing for theory + viva
Beginners confused between call by value vs reference
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