Okey, Prototype seems clear to me in a way. But I'm wondering why we use "return 0" at the end of main(). What functions (activities) does it play in C programming?
I've read about return value but couldn't grasp the intention of using return value.
Okey, Prototype seems clear to me in a way. But I'm wondering why we use "return 0" at the end of main(). What functions (activities) does it play in C programming?
I've read about return value but couldn't grasp the intention of using return value.
Last edited by Sharifhs; 08-09-2010 at 09:22 PM. Reason: added last line
It's used by the OS to indicate if the program was successful or not.
Quzah.
Hope is the first step on the road to disappointment.
just to tell the operating system whether our program succeeded or not!!! Thanks quzah..
More specificly the main function looks like this:Originally Posted by Sharifhs
Here you see the return type is int, integrer(a value without decimals). 0 is a integrer. In this case 0 means that the program ran without problems.Code:int main(void)
I honestly don't believe that the return value is defined. 0 may not necessarily mean success.
That is, the return value is more for telling other programs of its operational status rather than the OS.
Keep that in mind.
