Re: Newbie idiotic questions.

Daniel Phillips (phillips@bonn-fries.net)
Sun, 17 Jun 2001 12:48:01 +0200


On Sunday 17 June 2001 03:32, Jeff Garzik wrote:
> Bill Pringlemeir wrote:
> > Why is the struct type referenced for the allocation size? Why not,
> >
> > if ((card->mpuout = kmalloc(sizeof(card->mpuout), GFP_KERNEL))
>
> because then you would be allocating the size of a pointer, not the size
> of a structure

Whoops Jeff, you didn't have your coffee yet:

struct foo { int a; int b; };
struct { struct foo foo; } *foobar;

int main (void)
{
printf("%i\n", sizeof(struct foo));
printf("%i\n", sizeof(foobar->foo));
printf("%i\n", sizeof(&foobar->foo));
}

Prints:

8
8
4

--
Daniel
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