public inbox for gcc-prs@sourceware.org
help / color / mirror / Atom feed
From: "Joseph S. Myers" <jsm28@cam.ac.uk>
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: Re: c/10696: linker problem with global variable
Date: Fri, 09 May 2003 11:26:00 -0000 [thread overview]
Message-ID: <20030509112600.27437.qmail@sources.redhat.com> (raw)
The following reply was made to PR c/10696; it has been noted by GNATS.
From: "Joseph S. Myers" <jsm28@cam.ac.uk>
To: ehrhardt@mathematik.uni-ulm.de, bhuang@qubit-star.com,
gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org
Cc:
Subject: Re: c/10696: linker problem with global variable
Date: Fri, 9 May 2003 12:24:44 +0100 (BST)
On Fri, 9 May 2003 ehrhardt@mathematik.uni-ulm.de wrote:
> Not a bug! As defined in 6.2.2 foo_global has external linkage in
> both translation units, hence both identifiers refer to the same object.
Actually, the multiple definitions cause undefined behavior, no diagnostic
required. The reported behavior (allowing multiple definitions in
different translation units, provided no more than one is initialized) is
conventional on Unix. If the reporter wants a diagnostic at link time,
compile with -fno-common or link with -Wl,--warn-common (if using GNU
binutils).
--
Joseph S. Myers
jsm28@cam.ac.uk
next reply other threads:[~2003-05-09 11:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-09 11:26 Joseph S. Myers [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-05-09 9:32 ehrhardt
2003-05-09 7:06 bhuang
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=20030509112600.27437.qmail@sources.redhat.com \
--to=jsm28@cam.ac.uk \
--cc=gcc-prs@gcc.gnu.org \
--cc=nobody@gcc.gnu.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).