Why do people still use main() or main(void)?

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So why do people continue to use main() and main(void)? without int

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If you don't need argc and argv?

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Are you serious?

What do argc, and argv have to do with main's return type?

brewbuck is referring to main()'s parameters. I think the OP is referring to both main()'s return type and parameters, but in that case, I think the question was related to the return type being implicitly declared as int.

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So why do people continue to use main() and main(void)? without int

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Mostly out of laziness/ignorance, but that doesn't mean there isn't a valid reason for not using int main(void). For example, programming for embedded systems may often include "non-standard" code, such as void main(void).

As for the implicit return of 0, I personally always make use of this unless I intend on returning a specific result. This is beneficial, because in the future, if the standards committee decides that main will now return X by default instead of 0, or will return X and perform some clean-up code, then you no longer have to worry about correcting all the "return 0"'s you hard-coded into your source in the past.

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Originally Posted by @nthony

As for the implicit return of 0, I personally always make use of this unless I intend on returning a specific result. This is beneficial, because in the future, if the standards committee decides that main will now return X by default instead of 0, or will return X and perform some clean-up code, then you no longer have to worry about correcting all the "return 0"'s you hard-coded into your source in the past.

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this is highly unlikely due to this functioning in scripts:

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app
if(!ret_val) echo error!

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it would instantly invalidate every C program and most scripts, making a lot of work for people to recode their programs and scripts, making a lot of programmers and scripters unhappy.