Re: RFC: booleans and the kernel
H. Peter Anvin (hpa@zytor.com)
24 Jan 2002 11:28:46 -0800
Followup to: <3C5047A2.1AB65595@mandrakesoft.com>
By author: Jeff Garzik <jgarzik@mandrakesoft.com>
In newsgroup: linux.dev.kernel
>
> A small issue...
>
> C99 introduced _Bool as a builtin type. The gcc patch for it went into
> cvs around Dec 2000. Any objections to propagating this type and usage
> of 'true' and 'false' around the kernel?
>
> 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].
>
> Actually I prefer 'bool' to '_Bool', if this becomes a kernel standard.
>
Noone is actually meant to use _Bool, except perhaps in header files.
#include <stdbool.h>
... then use "bool", "true", "false".
This is fine with me as long our version of stdbool.h contain the
appropriate ifdefs.
-hpa
--
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com>
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/