Re: [RFC][PATCH] A generic boolean (version 6)

From: Nicholas Miell
Date: Thu Jul 27 2006 - 16:12:02 EST

On Thu, 2006-07-27 at 21:55 +0200, ricknu-0@xxxxxxxxxxxxxx wrote:
> Citerar Nicholas Miell <nmiell@xxxxxxxxxxx>:
> > If _Bool does end up in the user-kernel ABI, be advised that validating
> > them will be tricky ("b == true || b == false" or "!!b" won't work), and
> Why would !!b not work?
> I don't think it should end up in the ABI (at least, not yet). Just asking
> because I'm curious. :)

The compiler knows that "b = !!b;" is a no-op.

Nicholas Miell <nmiell@xxxxxxxxxxx>

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at