From: Richard Earnshaw <rearnsha@arm.com>
To: Alexandre Oliva <aoliva@redhat.com>
Cc: rearnsha@arm.com
Subject: Re: Is this a gcc bug?
Date: Sat, 13 Jan 2001 03:21:00 -0000 [thread overview]
Message-ID: <200101131120.LAA12805@cam-mail2.cambridge.arm.com> (raw)
In-Reply-To: <or8zoggpv6.fsf@guarana.lsd.ic.unicamp.br>
> On Jan 12, 2001, Axel Kittenberger <Anshil@gmx.net> wrote:
>
> > bug.i:8: unpredictable behaviour due to undefined evaluation sequence of
> > 'x'
>
> It's the behavior that is undefined. How about:
>
> undefined behavior: expression may modify `x' multiple times
But it may not modify `x' multiple times, yet it can still be undefined.
Consider (as I posted before)
y = x++ + x;
Since Dewar didn't like my has multiple interpretations suggestion how
about
expression containing 'x' has undefined value.
R.
next prev parent reply other threads:[~2001-01-13 3:21 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-12 1:18 Axel Kittenberger
2001-01-12 18:14 ` Alexandre Oliva
2001-01-12 19:11 ` Fergus Henderson
2001-01-13 3:21 ` Richard Earnshaw [this message]
-- strict thread matches above, loose matches on Subject: below --
2008-06-16 13:01 Is this a GCC bug? Bingfeng Mei
2008-06-16 13:33 ` Bingfeng Mei
2001-01-17 23:30 Is this a gcc bug? Axel Kittenberger
2001-01-16 17:06 dewar
2001-01-14 16:14 dewar
2001-01-14 16:53 ` Dave Korn
2001-01-14 5:31 dewar
2001-01-14 15:51 ` Geoff Keating
2001-01-12 19:15 dewar
2001-01-12 19:29 ` Fergus Henderson
2001-01-12 19:14 dewar
2001-01-12 19:36 ` Alexandre Oliva
2001-01-12 18:21 dewar
2001-01-12 18:29 ` Joseph S. Myers
2001-01-12 18:49 ` Alexandre Oliva
2001-01-12 18:58 ` Fergus Henderson
2001-01-13 10:34 ` James Dennett
2001-01-16 17:01 ` Michael Eager
2001-01-17 3:21 ` Falk Hueffner
2001-01-17 14:57 ` Michael Eager
2001-01-11 10:38 dewar
2001-01-11 10:30 dewar
2001-01-11 10:05 dewar
2001-01-11 10:00 David Korn
2001-01-11 21:36 ` Andy Walker
2001-01-13 18:45 ` Joern Rennecke
2001-01-14 2:21 ` Geoff Keating
2001-01-11 7:07 dewar
2001-01-11 5:53 dewar
2001-01-11 6:06 ` Bernd Schmidt
2001-01-11 8:40 ` Per Bothner
2001-01-11 9:03 ` Richard Earnshaw
2001-01-11 9:27 ` Alexandre Oliva
2001-01-11 9:33 ` Joe Buck
2001-01-11 9:38 ` Bernd Schmidt
2001-01-11 9:44 ` Richard Earnshaw
2001-01-11 10:57 ` Neil Booth
2001-01-11 5:49 dewar
2001-01-11 3:04 David Korn
2001-01-11 2:11 Uros Bizjak
2001-01-11 3:04 ` Alexandre Oliva
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