Question

The function main () is ___?
a. built-in function
b. user defined function
c. optional
d. none of this​

Answer 1

Answer:

None of these................

Answer 2

Option b). user defined function

The function main () is user defined function.

• There is no built-in or predefined function named main(). It is a user-defined function with a prototype already defined (also called function signature). Although the user writes its functionality, some limitations apply to its declaration.
• The main function is where the program is executed from. By directing calls to other program functions, it often manages how the program is executed. The end of main is typically where a program terminates, however this might happen at other points for a number of different reasons.
• In C, the main() function is a user-defined function, allowing us to supply parameters to it in accordance with the needs of a programme. A program's main() function is used to run the programming code—not at programme compilation time, but at run time.

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