lkml.org 
[lkml]   [2006]   [Dec]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] Documentation: Explain a second alternative for multi-line macros.
Date
>> In this case, the second form
>> should be used when the macro needs to return a value (and you can't
>> use an inline function for whatever reason), whereas the first form
>> should be used at all other times.
>
> that's a fair point, although it's certainly not the coding style
> that's in play now. for example,
>
> #define setcc(cc) ({ \
> partial_status &= ~(SW_C0|SW_C1|SW_C2|SW_C3); \
> partial_status |= (cc) & (SW_C0|SW_C1|SW_C2|SW_C3); })

This _does_ return a value though, bad example.


Segher

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-01-01 03:43    [W:0.963 / U:0.496 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site