Re: function cast?
Manish Katiyar <[email protected]>
| Newsgroups | org.kernel.vger.linux-c-programming |
|---|---|
| Message-ID | <[email protected]> |
On Thu, Jan 28, 2010 at 11:39 AM, Randi Botse <[email protected]> wrote: > (sorry for my first uncomplete email, please abandon the first mail) > > Hi All, > > Sometimes i see codes are written like this: > > (void) printf(fmt); > > - or - > > (void) close(fd); > > What these means? i think it is not necessary to put that 'void' on a > statement, or it just like when we cast a data type like: > > double d = 93.43; > int i = (int) d; > > but why those function need to be casted in a 'void' ? Some time it is also to shut up static analysis tools, which might crib if the function is supposed to return a value and you have not used the return value. It might be intentional or you might have just missed. So inorder to show that it is intetional not to use the return value we typecast it. Thanks - Manish > > Thanks, > -- > To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Thanks - Manish ================================== [$\*.^ -- I miss being one of them ================================== -- To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html