On Sat, Jun 17, 2006 at 02:28:28PM +0100, Ciaran McCreesh wrote:
> On Sat, 17 Jun 2006 15:20:52 +0200 Harald van Dijk <[EMAIL PROTECTED]>
> wrote:
> | and then accessing {first, null}, or {null, last} as a struct dl_node
> | the way to fix the code would be to rewrite the code to use arrays
> | of pointers instead of simply three pointer members. There is no
> | valid way to do what the code does using pointer members (that's
> | simple logic: it relies on the padding between first and null to be
> | exactly the same as that between null and last, which is a guarantee
> | standard C doesn't make), so fixing it requires quite a bit of work.
>
> It can be done using nested structs.
No, it can't: the two dl_nodes overlap.
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