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What happen internally in the system when return type of main () function make as void ?

+2 votes
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If I correct , by default main () function has integer return type.
I want to know what happens in the system internally when its return type gets changed from integer to void ?

posted Jan 13, 2016 by Vikram Singh

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1 Answer

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we use int main() for C Programming but void main() works as well as int main() do. Operating systems pass the return value that sometimes called exit status to the calling program.Compilers will accept void main, but this is a non-standard extension (it usually means "always return zero to the OS" so explicitly void main return status 0 to operating systems same as after successful completion form any int main() function.

answer Jan 27, 2016 by Shivam Kumar Pandey
Hi Shivam, you answered very well. Could you please share some sort of references like online references/books/blogs etc ?
commented Apr 9, 2016 by Vikram Singh
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