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    SubjectRe: [PATCH] use %p for pointers
    Jakub Jelinek wrote:
    > On Wed, Oct 11, 2006 at 11:45:10AM -0700, H. Peter Anvin wrote:
    >> Al Viro wrote:
    >>> %p will do no such thing in the kernel. As for the difference... %x
    >>> might happen to work on some architectures (where sizeof(void
    >>> *)==sizeof(int)),
    >>> but it's not portable _and_ not right. %p is proper C for that...
    >> It's really too bad gcc bitches about %#p, because that's arguably The
    >> Right Thing.
    >
    > It is correct that gcc warns about %#p, that invokes undefined behavior
    > in ISO C99.
    >

    Yes, it's a bug in the standard.

    -hpa

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