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To: linux-kernel@vger.kernel.org
From: "H. Peter Anvin" <hpa@zytor.com>
Subject: Re: RFC: booleans and the kernel
Date: 24 Jan 2002 11:28:46 -0800
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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>
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