lkml.org 
[lkml]   [2006]   [Jul]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RFC][PATCH] A generic boolean (version 4)
Jan Engelhardt wrote:
>>>> +#define false false
>>>> +#define true true
>>> Can someone please tell me what advantage 'define true true' is going to
>>> bring, besides than being able to '#ifdef true'?
>> It
>>
>> (a) makes type information available to the C compiler, where a plain #define
>> does not.
>
> Do you mean preprocessor? C already knows about true from the enum.

I was describing the overall purpose of the enum + #define change, when
you take my "(a)" and "(b)" in sum.


>> (b) handles all '#ifndef true' statements properly
>
> Holy *, is there _really_ code in linux/ that depends on true being
> [not] defined?

I suggest re-reading the boolean patches in this thread, to answer that
question...

Programmer wanting to use boolean inevitably add an '#ifndef true' or
'#ifndef TRUE' style statement to their code.

Jeff



-
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/

\
 
 \ /
  Last update: 2006-07-23 23:47    [W:0.155 / U:1.556 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site