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xen-devel
Re: [Xen-devel] RFC: vaddr_t and vsize_t
On 17/1/07 16:21, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:
> This stuff is about removing a place where programmers can make mistakes.
> vaddr_t also avoids void * arithmetics. It should be possible then to use
> -Wpointer-arith.
A bunch of our void* arithmetic comes from files we keep in sync with Linux.
So we'd really need Linux to clean this up before we use -Wpointer-arith, or
we have to do extra porting effort to keep files in sync.
I suppose I don't mind vaddr_t being defined and people using it if they
want to. At least it is probably clearer that translation to/from char* or
long to do pointer arithmetic. However, I'm less sure about a wholesale
conversion of Xen away from use of 'unsigned long'.
-- Keir
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