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From: jsm28@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, jsm28@cam.ac.uk,
	nobody@gcc.gnu.org, suan@cs.wisc.edu
Subject: Re: c/6409: C comma operator: wrong behavior
Date: Mon, 22 Apr 2002 10:16:00 -0000	[thread overview]
Message-ID: <20020422171612.5670.qmail@sources.redhat.com> (raw)

Synopsis: C comma operator: wrong behavior

State-Changed-From-To: open->closed
State-Changed-By: jsm28
State-Changed-When: Mon Apr 22 10:16:11 2002
State-Changed-Why:
    Sequence points define a partial ordering, not a total
    ordering.  There is no ordering in the example between
    (val=11) and any part of the other argument of +.  Both
    arguments of the comma operator conflict with (val=11),
    causing undefined behavior if this code is ever executed
    (so the compiler can make deductions on the basis that
    it never will be executed).

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6409


             reply	other threads:[~2002-04-22 17:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-04-22 10:16 jsm28 [this message]
  -- strict thread matches above, loose matches on Subject: below --
2002-04-22 10:06 Suanhsi Yong

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