Why do { // do something ; } while (0); ?

Adam Lee adam8157 at gmail.com
Thu Dec 13 04:00:44 EST 2012


On Thu, Dec 13, 2012 at 02:25:37PM +0530, Shraddha Kamat wrote:
> I notice
>  
> do {
>    // do something 1 ; 
>    // do something 2 ;
>    ...
> } while (0); 
> 
> being used everywhere in the kernel code
> I just can't guess of any use of this other 
> than executing couple of C statements together ?
> 
> Is there any special purpose of doing this ?? 
> Sorry of such a silly question - I am just trying 
> to learn kernel hacking basics.

http://kernelnewbies.org/FAQ/DoWhile0

-- 
Regards,
Adam Lee
http://adam8157.info



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