On Tue, 06 Jan 2015 15:07:17 +0530, nawab said:
> hi friends ,
>
> i have a simple doubt when i was looking on linux/list.h
>
> I have seen that INIT_LIST_HEAD and LIST_HEAD_INIT are performing the
> same functionality,the major difference is
> the argument passed.
>
> When we have to use INIT_LIST_HEAD and LIST_HEAD_INIT??
At the risk of sounding snarky - you use INIT_LIST_HEAD when you have
an argument of the type it takes, and you use LIST_INIT_HEAD when you
have something of the type that *that* one takes. Just like math.h gives
us:
double sin(double x);
float sinf(float x);
so if you have a float, you call sinf() and if you have a double, you
call sin().
(Hint: One looks suspiciously like a data initializer, the other looks
like executable code.... :)
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