I just changed the return type of main method from int to void
so why dont we use void since we dont want to return anything, we just wanted to execute the program like in C# where the main method returns void ?
It may work for you at that moment and at that time and on that OS. That doesn’t make it 100% working in all cases.
It also completely avoids the whole official standard of returning an int correctly (possible that the compiler is doing it for you anyway).
You might be better served by learning why one would want to return something other than 0, when returning something else should be done, and how that works since that isn’t really taught at the point you’re at to the extent that you’re changing things around at. That should hopefully help you to understand why returning 0 should be.
If no return value is specified in
main, the compiler supplies a return value of zero.
As a Microsoft extension, the
mainandwmainfunctions can be declared as returningvoid(no return value). This extension is also available in some other compilers, but its use isn’t recommended.
If you declare
mainorwmainas returningvoid, you can’t return an exit code to the parent process or the operating system by using areturnstatement. To return an exit code whenmainorwmainis declared asvoid, you must use theexitfunction.
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If you want to read standardese, the standard only specifies two signatures. Anything else is a compiler extension:
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