On Fri, May 30, 2008 at 10:57 AM, Kai Tietz <[EMAIL PROTECTED]> wrote:
> Hi,
>
> as I noticed, most hash value calculations are trying to use pointer
> values for building the value and assume that a long/unsigned long scalar
> is wide enough for a pointer. This is at least for w64 target not true. So
> I want to know, if it would be good to introduce an gcc specific type for
> those kind of casts, or to use ssize_t/size_t.?
it's uintptr_t which should be used, if only as an intermediate cast -
(unsigned long)(uintptr_t)ptr.
The effect of not including the upper half of the pointer shouldn't reduce
the quality of the hash too much.
Richard.
> Regards,
> Kai
>
> Btw: I noticed that while trying to debug the native w64 compiler, which
> always crashes in c-common.c:6748 in field_decl_cmp (a cross-compiler
> version does not crash?!).
>
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