From: Joel Brobecker <brobecker@gnat.com>
To: gdb-patches@sources.redhat.com
Cc: Andrew Cagney <cagney@redhat.com>,
Peter Schauer <Peter.Schauer@regent.e-technik.tu-muenchen.de>,
Kevin Buettner <kevinb@redhat.com>
Subject: [RFC/AIX] xm-aix4.h - Can we remove NULL re-define?
Date: Sun, 08 Aug 2004 04:52:00 -0000 [thread overview]
Message-ID: <20040808045246.GE24160@gnat.com> (raw)
config/xm-aix4.h contains the following definition:
| /* Brain death inherited from PC's pervades. */
| #undef NULL
| #define NULL 0
Is this still needed? Where does this come from?
It looks pretty scary that a compiler would actually defined NULL
as being non-zero. I have always heard that NULL is not garantied
to be zero, but I've seen so much code kind of confusing NULL and
zero that I thought nobody in their right mind would actually do
otherwise...
If still necessary, can this be replaced by something like this in
defs.h?
#if (NULL != 0)
#undef NULL
#define NULL 0
#endif
--
Joel
next reply other threads:[~2004-08-08 4:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-08 4:52 Joel Brobecker [this message]
2004-08-08 14:00 ` Andrew Cagney
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20040808045246.GE24160@gnat.com \
--to=brobecker@gnat.com \
--cc=Peter.Schauer@regent.e-technik.tu-muenchen.de \
--cc=cagney@redhat.com \
--cc=gdb-patches@sources.redhat.com \
--cc=kevinb@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox