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Questions and Answers
What is the purpose of main() in a C program?
What is the purpose of main() in a C program?
- To serve as the entry point of the program and contain a set of statements (correct)
- To return a non-integer value indicating success or failure
- To execute only if there is an error in the program
- To declare variables for the entire program
What type of value does the main() function in C always return?
What type of value does the main() function in C always return?
- String
- Integer (correct)
- Void
- Boolean
What does returning a non-zero number from main() indicate?
What does returning a non-zero number from main() indicate?
- Success
- String
- Void
- Failure (correct)
In what situation can main() in C return nothing?
In what situation can main() in C return nothing?
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What does enclosing statements within braces {} indicate in C?
What does enclosing statements within braces {} indicate in C?
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Study Notes
Main Function in C
- The main function is the entry point of a C program, where the program starts executing.
Return Value of Main
- The main function in C always returns an integer value (int).
Return Value Indication
- Returning a non-zero number from main() indicates that the program has encountered an error or an abnormal termination.
Void Return
- In C, main() can return nothing (i.e., void) when the program terminates normally, but it's not a recommended practice.
Braces in C
- Enclosing statements within braces {} in C indicates a compound statement or a block, which is used to group multiple statements together.
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Description
Learn about the purpose and intricacies of the main() function in C programming. Explore how main() functions as a container for a set of statements and the rules associated with it.
