Re: [RFC][PATCH] A generic boolean

Bodo Eggert
2006-08-04T20:57:26Z

Jes Sorensen <jes@sgi.com> wrote:
> Andreas Schwab wrote:

>> Try determining the alignment of u64 on i386. You will be surprised.
>
> If thats the case, then thats really scary :-( I'd claim it's a bug and
> I am willing to be that iptables isn't the only place that is affected
> or will be in the future.

It's not a bug, since 64 bit integers require only 4-byte-alignment if
addressed by the CPU/FPU. You may benefit from cacheline effects if you
align to 64 bits, but not on i[34]86 (and those define the ABI).

If you want 64-bit-alignment, you can use -malign-double.
--
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.