On Die, 2010-04-20 at 16:52 +0530, Onkar Mahajan wrote:
> Hi All ,
> Please correct me otherwise , if I am wrong here :
>
> #define hlist_for_each_entry(tpos, pos, head, member) \
> for (pos = (head)->first; \
> pos && ({ prefetch(pos->next); 1;}) && \ <------------------(1)
> ({ tpos = hlist_entry(pos, typeof(*tpos), member); 1;}); \
> <-------------(2)
> pos = pos->next)
>
> In my understanding ({ prefetch(pos->next); 1;}) & ({ tpos =
> hlist_entry(pos, typeof(*tpos), member); 1;})
> will always return 1 , and will do additional tasks ( which don't
> affect the final outcome of the expression in the {})
> of pre-fetching ( in (1) ) and casting the "current" pos into the
> typeof(*tpos) ( in (2) ).
>
> Am I right ?
Yes.
Bernd
--
Bernd Petrovitsch Email : bernd@xxxxxxxxxxxxxxxxxxx
LUGA : http://www.luga.at
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