Re: [2.4.23-pre3] Possible bug in fs/buffer.c

[Andreas Schwab]

Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> writes:

> On Llu, 2003-09-08 at 16:42, Andreas Schwab wrote:
>> It's neither ugly, nor bogus.  The only 100% reliable way to assign the
>> maximum value to an unsigned integer is to use -1.
>
> Its not 100% reliable either 8).

Could you please elaborate?  Casting -1 to an unsigned type is guaranteed
to yield the maximum value for that type, at least since C89, but I think
even K&R C did get it right.

Andreas.

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