From: Matthew Wilcox <matthew@wil.cx>
To: kernel-janitors@vger.kernel.org
Subject: Re: [KJ] How does macro time_after(unknown,
Date: Wed, 10 Jan 2007 14:00:46 +0000 [thread overview]
Message-ID: <20070110140046.GD21967@parisc-linux.org> (raw)
On Wed, Jan 10, 2007 at 09:40:19PM +0800, Lei W wrote:
> BUT why the macro
> #define time_after(unknown,known) ((long)(unknown) -
> (long)(known)<0))
> will not?
Just think about it a bit. What happens near extreme points?
time_after(a, b)
If a is 100 greater than b, how does it behave when b is slightly below
0? Slightly above 0? Near INT_MAX? Near 2^32?
_______________________________________________
Kernel-janitors mailing list
Kernel-janitors@lists.osdl.org
https://lists.osdl.org/mailman/listinfo/kernel-janitors
reply other threads:[~2007-01-10 14:00 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=20070110140046.GD21967@parisc-linux.org \
--to=matthew@wil.cx \
--cc=kernel-janitors@vger.kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.