lkml.org 
[lkml]   [2003]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH] 2.4.22pre10: {,un}likely_p() macros for pointers
Date
David S. Miller <davem@redhat.com> wrote:
>
> I believe the C language allows for systems where the NULL pointer is
> not zero.

It does. However it also says that whenever a pointer is compared
with the integer constant 0 it must be equal if and only if it is
a NULL pointer.

An integer constant expression with the value 0, or such an expression
cast to type void *, is called a null pointer constant.
--
Debian GNU/Linux 3.0 is out! ( http://www.debian.org/ )
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
-
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: 2005-03-22 13:47    [W:0.091 / U:0.232 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site