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    SubjectRe: [PATCH] Fix CPU bitmask truncation
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    Jeremy Fitzhardinge <jeremy@goop.org> writes:

    |> On Fri, 2002-12-20 at 04:17, Andreas Schwab wrote:
    |> > This is useless. Assigning -1 to any unsigned type is garanteed to give
    |> > you all bits one, and with two's complement this also holds for any signed
    |> > type.
    |>
    |> Only if the -1 is the same size as the unsigned type. Otherwise it will
    |> be 0-extended.

    Wrong. Unsigned arithmetics is defined as modulo MAX+1, and -1 equals MAX
    modulo MAX+1 for every MAX.

    Andreas.

    --
    Andreas Schwab, SuSE Labs, schwab@suse.de
    SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
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    "And now for something completely different."
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