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SubjectRe: RFC: booleans and the kernel
On Sat, Jan 26, 2002 at 03:08:41AM +0000, Jamie Lokier wrote:

> Helge Hafting wrote:
> > Why would anyone want to write if (X==false) or if (X==true) ?
> > It is the "beginner's mistake" way of writing code. Then people learn,
> > and write if (X) or if (!X). Comparing to true/false is silly.
> > Nobody writes if ( (a==b) == true) so why do it in the simpler cases?
>
> I usually without the == in these cases:
>
> if (pointer) // test for non-0.

Huh? I thought we were talking about C here, // in C is an abomination, use /*
*/ :-)

> Just to break that rule, however, if p were a pointer and x were an
> integer, I would write:
>
> x = (p != 0);

Heard about NULL ?

> rather than
>
> x = p;

Because that would give a compile error...

--

Mark Zealey
mark@zealos.org
mark@itsolve.co.uk

UL++++>$ G!>(GCM/GCS/GS/GM) dpu? s:-@ a16! C++++>$ P++++>+++++$ L+++>+++++$
!E---? W+++>$ N- !o? !w--- O? !M? !V? !PS !PE--@ PGP+? r++ !t---?@ !X---?
!R- b+ !tv b+ DI+ D+? G+++ e>+++++ !h++* r!-- y--

(www.geekcode.com)
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