From: Eric Blake <ebb9@byu.net>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>, dash@vger.kernel.org
Subject: Re: avoid compiler warning
Date: Tue, 11 Aug 2009 21:32:10 -0600 [thread overview]
Message-ID: <4A8237BA.20701@byu.net> (raw)
In-Reply-To: <4A819D67.7060301@zytor.com>
According to H. Peter Anvin on 8/11/2009 10:33 AM:
> Herbert... the *type* is int, but the *value* has to be in the range
> [-1,UCHAR_MAX] or the behavior is undefined in both the C and POSIX
> standards.
Actually, the *value* has to be either EOF (which is negative, but not
necessarily required to be -1) or [0,UCHAR_MAX]. But you are correct that
for most (all?) platforms, EOF is -1 even though it is not mandated as such.
--
Don't work too hard, make some time for fun as well!
Eric Blake ebb9@byu.net
next prev parent reply other threads:[~2009-08-12 3:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-09 12:55 avoid compiler warning Eric Blake
2009-08-11 4:03 ` Herbert Xu
2009-08-11 16:33 ` H. Peter Anvin
2009-08-11 21:56 ` Herbert Xu
2009-08-11 22:06 ` H. Peter Anvin
2009-08-12 3:19 ` Eric Blake
2009-08-31 11:30 ` Eric Blake
2009-08-31 11:31 ` Herbert Xu
2009-08-12 3:32 ` Eric Blake [this message]
2009-08-12 3:30 ` Eric Blake
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=4A8237BA.20701@byu.net \
--to=ebb9@byu.net \
--cc=dash@vger.kernel.org \
--cc=herbert@gondor.apana.org.au \
--cc=hpa@zytor.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 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.