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Learn C Programming

You're reading from   Learn C Programming A beginner's guide to learning C programming the easy and disciplined way

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Product type Paperback
Published in Jun 2020
Publisher Packt
ISBN-13 9781789349917
Length 646 pages
Edition 1st Edition
Languages
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Author (1):
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Jeff Szuhay Jeff Szuhay
Author Profile Icon Jeff Szuhay
Jeff Szuhay
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Toc

Table of Contents (33) Chapters Close

Preface 1. Section 1: C Fundamentals
2. Running Hello, World! FREE CHAPTER 3. Understanding Program Structure 4. Working with Basic Data Types 5. Using Variables and Assignment 6. Exploring Operators and Expressions 7. Exploring Conditional Program Flow 8. Exploring Loops and Iteration 9. Creating and Using Enumerations 10. Section 2: Complex Data Types
11. Creating and Using Structures 12. Creating Custom Data Types with typedef 13. Working with Arrays 14. Working with Multi-Dimensional Arrays 15. Using Pointers 16. Understanding Arrays and Pointers 17. Working with Strings 18. Creating and Using More Complex Structures 19. Section 3: Memory Manipulation
20. Understanding Memory Allocation and Lifetime 21. Using Dynamic Memory Allocation 22. Section 4: Input and Output
23. Exploring Formatted Output 24. Getting Input from the Command Line 25. Exploring Formatted Input 26. Working with Files 27. Using File Input and File Output 28. Section 5: Building Blocks for Larger Programs
29. Working with Multi-File Programs 30. Understanding Scope 31. Other Books You May Enjoy Appendix

The special features of main()

However, the main() function is a special function in C with the following special properties:

  • main() cannot be called by any other function.
  • main() is activated as the first function called when the program is invoked to begin execution.
  • When we return from the main() function, execution stops and the program is terminated.
  • There are only two forms of the main() function prototype:
    • Has no arguments at all
    • Has exactly two arguments—an int value and a char* array

We will explore the second form of the main() functionin this chapter.

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