Re: RFC: booleans and the kernel

Jeff Garzik
2002-01-24T20:04:00Z

Oliver Xymoron wrote:
> On Thu, 24 Jan 2002, Jeff Garzik wrote:
> > Where variables are truly boolean use of a bool type makes the
> > intentions of the code more clear. And it also gives the compiler a
> > slightly better chance to optimize code [I suspect].
>
> Unlikely. The compiler can already figure this sort of thing out from
> context.

X, true, and false are of type int.
If one tests X==false and then later on tests X==true, how does the
compiler know the entire domain has been tested? With a boolean, it
would. Or a switch statement... if both true and false are covered,
there is no need for a 'default'. Similar arguments apply for
enumerated types.

--
Jeff Garzik | "I went through my candy like hot oatmeal
Building 1024 | through an internally-buttered weasel."
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