What is the beneficial effects and difference between using main() function as
void main()or
int main(void)
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you should always use int main(), because upon finishing the application, the OS need to know the exit status of the application. – aah134 Jul 13 '13 at 18:45
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A main function is called by a pre-load library that runs upon execution by the operating system. Many operating systems handle the result of an executable - and declaring main to return a type of int means that the main function can return a value. Obviously declaring main to return a type of void means that the main function cannot return a value - and some compilers will not permit this depending on what the target architecture of your build is.
The difference between declaring a function () or (void) is documented many times elsewhere on StackOverflow.
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isn't it a just for the standardization of C and C++ that many compilers wouldn't allow void main() ? – Aman Singh Jul 13 '13 at 18:51
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@AmanSingh I've used void main in my past. But that's a long past. I can't remember `gcc` letting me use void main in recent years. – PP. Jul 13 '13 at 19:10
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if you want your application to have the ability to return a value, you must use
int main(void).
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