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Re: [patch/rfc] v2 bigcore.exp
On Mon, Feb 16, 2004 at 01:54:55PM -0500, Andrew Cagney wrote:
> >Andrew Cagney <cagney@gnu.org> writes:
> >
> >
> >>+ /* Compute an initial chunk size. The math is dodgy but it works
> >>+ for the moment. Perhaphs there's a constant around somewhere. */
> >>+ {
> >>+ size_t tmp;
> >>+ for (tmp = 1; tmp > 0; tmp <<= 1)
> >>+ max_chunk_size = tmp;
> >
> >
> >max_chunk_size = ~((size_t) -1 >> 1);
>
> What's to stop the right shift smearing the sign bit?
>
> (I've just checked in the current test, we can fix this once we know a
> better equation).
Size_t is guaranteed to be unsigned, so it can't, afaict.
--
Daniel Jacobowitz
MontaVista Software Debian GNU/Linux Developer